/* dwarf.c -- display DWARF contents of a BFD binary file
- Copyright (C) 2005-2017 Free Software Foundation, Inc.
+ Copyright (C) 2005-2021 Free Software Foundation, Inc.
This file is part of GNU Binutils.
#include "sysdep.h"
#include "libiberty.h"
#include "bfd.h"
-#include "bfd_stdint.h"
+#include <stdint.h>
#include "bucomm.h"
#include "elfcomm.h"
#include "elf/common.h"
#include "dwarf2.h"
#include "dwarf.h"
#include "gdb/gdb-index.h"
+#include "filenames.h"
+#include "safe-ctype.h"
#include <assert.h>
+#ifdef HAVE_LIBDEBUGINFOD
+#include <elfutils/debuginfod.h>
+#endif
+
+#include <limits.h>
+#ifndef CHAR_BIT
+#define CHAR_BIT 8
+#endif
+
#undef MAX
#undef MIN
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
static const char *regname (unsigned int regno, int row);
+static const char *regname_internal_by_table_only (unsigned int regno);
static int have_frame_base;
static int need_base_address;
that the .debug_info section could not be loaded/parsed. */
#define DEBUG_INFO_UNAVAILABLE (unsigned int) -1
+/* A .debug_info section can contain multiple links to separate
+ DWO object files. We use these structures to record these links. */
+typedef enum dwo_type
+{
+ DWO_NAME,
+ DWO_DIR,
+ DWO_ID
+} dwo_type;
+
+typedef struct dwo_info
+{
+ dwo_type type;
+ const char * value;
+ dwarf_vma cu_offset;
+ struct dwo_info * next;
+} dwo_info;
+
+static dwo_info *first_dwo_info = NULL;
+static bool need_dwo_info;
+
+separate_info * first_separate_info = NULL;
+
unsigned int eh_addr_size;
int do_debug_info;
int do_debug_frames_interp;
int do_debug_macinfo;
int do_debug_str;
+int do_debug_str_offsets;
int do_debug_loc;
int do_gdb_index;
int do_trace_info;
int do_debug_addr;
int do_debug_cu_index;
int do_wide;
+int do_debug_links;
+int do_follow_links = DEFAULT_FOR_FOLLOW_LINKS;
+bool do_checks;
int dwarf_cutoff_level = -1;
unsigned long dwarf_start_die;
struct cu_tu_set
{
- uint64_t signature;
- dwarf_vma section_offsets[DW_SECT_MAX];
- size_t section_sizes[DW_SECT_MAX];
+ uint64_t signature;
+ dwarf_vma section_offsets[DW_SECT_MAX];
+ size_t section_sizes[DW_SECT_MAX];
};
static int cu_count = 0;
static struct cu_tu_set *cu_sets = NULL;
static struct cu_tu_set *tu_sets = NULL;
-static bfd_boolean load_cu_tu_indexes (void *);
+static bool load_cu_tu_indexes (void *);
+
+/* An array that indicates for a given level of CU nesting whether
+ the latest DW_AT_type seen for that level was a signed type or
+ an unsigned type. */
+#define MAX_CU_NESTING (1 << 8)
+static bool level_type_signed[MAX_CU_NESTING];
/* Values for do_debug_lines. */
#define FLAG_DEBUG_LINES_RAW 1
return val;
}
-#if defined HAVE_LONG_LONG && SIZEOF_LONG_LONG > SIZEOF_LONG
+#if SIZEOF_LONG_LONG > SIZEOF_LONG
# ifndef __MINGW32__
# define DWARF_VMA_FMT "ll"
# define DWARF_VMA_FMT_LONG "%16.16llx"
/* Read in a LEB128 encoded value starting at address DATA.
If SIGN is true, return a signed LEB128 value.
If LENGTH_RETURN is not NULL, return in it the number of bytes read.
+ If STATUS_RETURN is not NULL, return with bit 0 (LSB) set if the
+ terminating byte was not found and with bit 1 set if the value
+ overflows a dwarf_vma.
No bytes will be read at address END or beyond. */
dwarf_vma
read_leb128 (unsigned char *data,
+ const unsigned char *const end,
+ bool sign,
unsigned int *length_return,
- bfd_boolean sign,
- const unsigned char * const end)
+ int *status_return)
{
dwarf_vma result = 0;
unsigned int num_read = 0;
unsigned int shift = 0;
- unsigned char byte = 0;
+ int status = 1;
while (data < end)
{
- byte = *data++;
+ unsigned char byte = *data++;
+ unsigned char lost, mask;
+
num_read++;
- result |= ((dwarf_vma) (byte & 0x7f)) << shift;
+ if (shift < CHAR_BIT * sizeof (result))
+ {
+ result |= ((dwarf_vma) (byte & 0x7f)) << shift;
+ /* These bits overflowed. */
+ lost = byte ^ (result >> shift);
+ /* And this is the mask of possible overflow bits. */
+ mask = 0x7f ^ ((dwarf_vma) 0x7f << shift >> shift);
+ shift += 7;
+ }
+ else
+ {
+ lost = byte;
+ mask = 0x7f;
+ }
+ if ((lost & mask) != (sign && (dwarf_signed_vma) result < 0 ? mask : 0))
+ status |= 2;
- shift += 7;
if ((byte & 0x80) == 0)
- break;
-
- /* PR 17512: file: 0ca183b8.
- FIXME: Should we signal this error somehow ? */
- if (shift >= sizeof (result) * 8)
- break;
+ {
+ status &= ~1;
+ if (sign && shift < CHAR_BIT * sizeof (result) && (byte & 0x40))
+ result |= -((dwarf_vma) 1 << shift);
+ break;
+ }
}
if (length_return != NULL)
*length_return = num_read;
-
- if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
- result |= -((dwarf_vma) 1 << shift);
+ if (status_return != NULL)
+ *status_return = status;
return result;
}
-/* Create a signed version to avoid painful typecasts. */
-static inline dwarf_signed_vma
-read_sleb128 (unsigned char * data,
- unsigned int * length_return,
- const unsigned char * const end)
-{
- return (dwarf_signed_vma) read_leb128 (data, length_return, TRUE, end);
-}
-
-static inline dwarf_vma
-read_uleb128 (unsigned char * data,
- unsigned int * length_return,
- const unsigned char * const end)
-{
- return read_leb128 (data, length_return, FALSE, end);
-}
-
-#define SKIP_ULEB() read_uleb128 (start, & length_return, end); start += length_return
-#define SKIP_SLEB() read_sleb128 (start, & length_return, end); start += length_return
-
-#define READ_ULEB(var) \
- do \
- { \
- dwarf_vma _val; \
- \
- (var) = _val = read_uleb128 (start, &length_return, end); \
- if ((var) != _val) \
- error (_("Internal error: %s:%d: LEB value (%s) " \
- "too large for containing variable\n"), \
- __FILE__, __LINE__, dwarf_vmatoa ("u", _val)); \
- start += length_return; \
- } \
- while (0)
-
-#define READ_SLEB(var) \
- do \
- { \
- dwarf_signed_vma _val; \
- \
- (var) = _val = read_sleb128 (start, &length_return, end); \
- if ((var) != _val) \
- error (_("Internal error: %s:%d: LEB value (%s) " \
- "too large for containing variable\n"), \
- __FILE__, __LINE__, dwarf_vmatoa ("d", _val)); \
- start += length_return; \
- } \
- while (0)
-
+/* Read AMOUNT bytes from PTR and store them in VAL as an unsigned value.
+ Checks to make sure that the read will not reach or pass END
+ and that VAL is big enough to hold AMOUNT bytes. */
#define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \
do \
{ \
unsigned int amount = (AMOUNT); \
if (sizeof (VAL) < amount) \
{ \
- error (_("internal error: attempt to read %d bytes of data in to %d sized variable"),\
+ error (ngettext ("internal error: attempt to read %d byte " \
+ "of data in to %d sized variable", \
+ "internal error: attempt to read %d bytes " \
+ "of data in to %d sized variable", \
+ amount), \
amount, (int) sizeof (VAL)); \
amount = sizeof (VAL); \
} \
} \
while (0)
+/* Like SAFE_BYTE_GET, but also increments PTR by AMOUNT. */
#define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
do \
{ \
} \
while (0)
+/* Like SAFE_BYTE_GET, but reads a signed value. */
#define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \
do \
{ \
} \
while (0)
+/* Like SAFE_SIGNED_BYTE_GET, but also increments PTR by AMOUNT. */
#define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
do \
{ \
/* Handled an extend line op.
Returns the number of bytes read. */
-static int
+static size_t
process_extended_line_op (unsigned char * data,
int is_stmt,
unsigned char * end)
{
unsigned char op_code;
- unsigned int bytes_read;
- unsigned int len;
+ size_t len, header_len;
unsigned char *name;
unsigned char *orig_data = data;
- dwarf_vma adr;
+ dwarf_vma adr, val;
- len = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
+ READ_ULEB (len, data, end);
+ header_len = data - orig_data;
- if (len == 0 || data == end || len > (uintptr_t) (end - data))
+ if (len == 0 || data == end || len > (size_t) (end - data))
{
warn (_("Badly formed extended line op encountered!\n"));
- return bytes_read;
+ return header_len;
}
- len += bytes_read;
op_code = *data++;
printf (_(" Extended opcode %d: "), op_code);
case DW_LNE_set_address:
/* PR 17512: file: 002-100480-0.004. */
- if (len - bytes_read - 1 > 8)
+ if (len - 1 > 8)
{
- warn (_("Length (%d) of DW_LNE_set_address op is too long\n"),
- len - bytes_read - 1);
+ warn (_("Length (%lu) of DW_LNE_set_address op is too long\n"),
+ (unsigned long) len - 1);
adr = 0;
}
else
- SAFE_BYTE_GET (adr, data, len - bytes_read - 1, end);
+ SAFE_BYTE_GET (adr, data, len - 1, end);
printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr));
state_machine_regs.address = adr;
state_machine_regs.view = 0;
name = data;
l = strnlen ((char *) data, end - data);
- data += len + 1;
- printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
- data += bytes_read;
- printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
- data += bytes_read;
- printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
- data += bytes_read;
+ data += l + 1;
+ READ_ULEB (val, data, end);
+ printf ("%s\t", dwarf_vmatoa ("u", val));
+ READ_ULEB (val, data, end);
+ printf ("%s\t", dwarf_vmatoa ("u", val));
+ READ_ULEB (val, data, end);
+ printf ("%s\t", dwarf_vmatoa ("u", val));
printf ("%.*s\n\n", (int) l, name);
}
- if (((unsigned int) (data - orig_data) != len) || data == end)
+ if (((size_t) (data - orig_data) != len + header_len) || data == end)
warn (_("DW_LNE_define_file: Bad opcode length\n"));
break;
case DW_LNE_set_discriminator:
- printf (_("set Discriminator to %s\n"),
- dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
+ READ_ULEB (val, data, end);
+ printf (_("set Discriminator to %s\n"), dwarf_vmatoa ("u", val));
break;
/* HP extensions. */
break;
case DW_LNE_HP_source_file_correlation:
{
- unsigned char *edata = data + len - bytes_read - 1;
+ unsigned char *edata = data + len - 1;
printf ("DW_LNE_HP_source_file_correlation\n");
{
unsigned int opc;
- opc = read_uleb128 (data, & bytes_read, edata);
- data += bytes_read;
+ READ_ULEB (opc, data, edata);
switch (opc)
{
printf (" DW_LNE_HP_SFC_formfeed\n");
break;
case DW_LNE_HP_SFC_set_listing_line:
+ READ_ULEB (val, data, edata);
printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n",
- dwarf_vmatoa ("u",
- read_uleb128 (data, & bytes_read, edata)));
- data += bytes_read;
+ dwarf_vmatoa ("u", val));
break;
case DW_LNE_HP_SFC_associate:
printf (" DW_LNE_HP_SFC_associate ");
- printf ("(%s",
- dwarf_vmatoa ("u",
- read_uleb128 (data, & bytes_read, edata)));
- data += bytes_read;
- printf (",%s",
- dwarf_vmatoa ("u",
- read_uleb128 (data, & bytes_read, edata)));
- data += bytes_read;
- printf (",%s)\n",
- dwarf_vmatoa ("u",
- read_uleb128 (data, & bytes_read, edata)));
- data += bytes_read;
+ READ_ULEB (val, data, edata);
+ printf ("(%s", dwarf_vmatoa ("u", val));
+ READ_ULEB (val, data, edata);
+ printf (",%s", dwarf_vmatoa ("u", val));
+ READ_ULEB (val, data, edata);
+ printf (",%s)\n", dwarf_vmatoa ("u", val));
break;
default:
printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc);
default:
{
- unsigned int rlen = len - bytes_read - 1;
+ unsigned int rlen = len - 1;
if (op_code >= DW_LNE_lo_user
/* The test against DW_LNW_hi_user is redundant due to
break;
}
- return len;
+ return len + header_len;
}
static const unsigned char *
if (offset >= section->size)
{
- warn (_("DW_FORM_strp offset too big: %s\n"),
+ warn (_("DW_FORM_strp offset too big: 0x%s\n"),
dwarf_vmatoa ("x", offset));
return (const unsigned char *) _("<offset is too big>");
}
ret = (const unsigned char *)
_("<no NUL byte at end of .debug_str section>");
- return ret;
+ return ret;
}
static const unsigned char *
if (offset >= section->size)
{
- warn (_("DW_FORM_line_strp offset too big: %s\n"),
+ warn (_("DW_FORM_line_strp offset too big: 0x%s\n"),
dwarf_vmatoa ("x", offset));
return (const unsigned char *) _("<offset is too big>");
}
static const char *
fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set,
- dwarf_vma offset_size, int dwo)
+ dwarf_vma offset_size, bool dwo)
{
enum dwarf_section_display_enum str_sec_idx = dwo ? str_dwo : str;
enum dwarf_section_display_enum idx_sec_idx = dwo ? str_index_dwo : str_index;
struct dwarf_section *index_section = &debug_displays [idx_sec_idx].section;
struct dwarf_section *str_section = &debug_displays [str_sec_idx].section;
- dwarf_vma index_offset = idx * offset_size;
+ dwarf_vma index_offset;
dwarf_vma str_offset;
const char * ret;
+ unsigned char *curr = index_section->start;
+ const unsigned char *end = curr + index_section->size;
+ dwarf_vma length;
if (index_section->start == NULL)
return (dwo ? _("<no .debug_str_offsets.dwo section>")
: _("<no .debug_str_offsets section>"));
+ if (str_section->start == NULL)
+ return (dwo ? _("<no .debug_str.dwo section>")
+ : _("<no .debug_str section>"));
+
+ /* FIXME: We should cache the length... */
+ SAFE_BYTE_GET_AND_INC (length, curr, 4, end);
+ if (length == 0xffffffff)
+ {
+ if (offset_size != 8)
+ warn (_("Expected offset size of 8 but given %s"), dwarf_vmatoa ("x", offset_size));
+ SAFE_BYTE_GET_AND_INC (length, curr, 8, end);
+ }
+ else if (offset_size != 4)
+ {
+ warn (_("Expected offset size of 4 but given %s"), dwarf_vmatoa ("x", offset_size));
+ }
+
+ if (length == 0)
+ {
+ /* This is probably an old style .debug_str_offset section which
+ just contains offsets and no header (and the first offset is 0). */
+ curr = index_section->start;
+ length = index_section->size;
+ }
+ else
+ {
+ /* Skip the version and padding bytes.
+ We assume that they are correct. */
+ curr += 4;
+
+ /* FIXME: The code below assumes that there is only one table
+ in the .debug_str_offsets section, so check that now. */
+ if ((offset_size == 4 && curr + length < (end - 8))
+ || (offset_size == 8 && curr + length < (end - 16)))
+ {
+ warn (_("index table size is too small %s vs %s\n"),
+ dwarf_vmatoa ("x", length),
+ dwarf_vmatoa ("x", index_section->size));
+ return _("<table too small>");
+ }
+ }
+
+ index_offset = idx * offset_size;
+
if (this_set != NULL)
index_offset += this_set->section_offsets [DW_SECT_STR_OFFSETS];
- if (index_offset >= index_section->size)
+
+ if (index_offset >= length)
{
- warn (_("DW_FORM_GNU_str_index offset too big: %s\n"),
- dwarf_vmatoa ("x", index_offset));
+ warn (_("DW_FORM_GNU_str_index offset too big: 0x%s vs 0x%s\n"),
+ dwarf_vmatoa ("x", index_offset),
+ dwarf_vmatoa ("x", length));
return _("<index offset is too big>");
}
- if (str_section->start == NULL)
- return (dwo ? _("<no .debug_str.dwo section>")
- : _("<no .debug_str section>"));
-
- str_offset = byte_get (index_section->start + index_offset, offset_size);
+ str_offset = byte_get (curr + index_offset, offset_size);
str_offset -= str_section->address;
if (str_offset >= str_section->size)
{
- warn (_("DW_FORM_GNU_str_index indirect offset too big: %s\n"),
+ warn (_("DW_FORM_GNU_str_index indirect offset too big: 0x%s\n"),
dwarf_vmatoa ("x", str_offset));
return _("<indirect index offset is too big>");
}
if (offset + bytes > section->size)
{
- warn (_("Offset into section %s too big: %s\n"),
+ warn (_("Offset into section %s too big: 0x%s\n"),
section->name, dwarf_vmatoa ("x", offset));
return "<offset too big>";
}
/* FIXME: There are better and more efficient ways to handle
these structures. For now though, I just want something that
is simple to implement. */
+/* Records a single attribute in an abbrev. */
typedef struct abbrev_attr
{
- unsigned long attribute;
- unsigned long form;
- bfd_signed_vma implicit_const;
- struct abbrev_attr *next;
+ unsigned long attribute;
+ unsigned long form;
+ bfd_signed_vma implicit_const;
+ struct abbrev_attr * next;
}
abbrev_attr;
+/* Records a single abbrev. */
typedef struct abbrev_entry
{
- unsigned long entry;
- unsigned long tag;
- int children;
- struct abbrev_attr *first_attr;
- struct abbrev_attr *last_attr;
- struct abbrev_entry *next;
+ unsigned long number;
+ unsigned long tag;
+ int children;
+ struct abbrev_attr * first_attr;
+ struct abbrev_attr * last_attr;
+ struct abbrev_entry * next;
}
abbrev_entry;
-static abbrev_entry *first_abbrev = NULL;
-static abbrev_entry *last_abbrev = NULL;
+/* Records a set of abbreviations. */
+typedef struct abbrev_list
+{
+ abbrev_entry * first_abbrev;
+ abbrev_entry * last_abbrev;
+ dwarf_vma abbrev_base;
+ dwarf_vma abbrev_offset;
+ struct abbrev_list * next;
+ unsigned char * start_of_next_abbrevs;
+}
+abbrev_list;
+
+/* Records all the abbrevs found so far. */
+static struct abbrev_list * abbrev_lists = NULL;
+
+typedef struct abbrev_map
+{
+ dwarf_vma start;
+ dwarf_vma end;
+ abbrev_list * list;
+} abbrev_map;
+
+/* Maps between CU offsets and abbrev sets. */
+static abbrev_map * cu_abbrev_map = NULL;
+static unsigned long num_abbrev_map_entries = 0;
+static unsigned long next_free_abbrev_map_entry = 0;
+
+#define INITIAL_NUM_ABBREV_MAP_ENTRIES 8
+#define ABBREV_MAP_ENTRIES_INCREMENT 8
+
+static void
+record_abbrev_list_for_cu (dwarf_vma start, dwarf_vma end, abbrev_list * list)
+{
+ if (cu_abbrev_map == NULL)
+ {
+ num_abbrev_map_entries = INITIAL_NUM_ABBREV_MAP_ENTRIES;
+ cu_abbrev_map = xmalloc (num_abbrev_map_entries * sizeof (* cu_abbrev_map));
+ }
+ else if (next_free_abbrev_map_entry == num_abbrev_map_entries)
+ {
+ num_abbrev_map_entries += ABBREV_MAP_ENTRIES_INCREMENT;
+ cu_abbrev_map = xrealloc (cu_abbrev_map, num_abbrev_map_entries * sizeof (* cu_abbrev_map));
+ }
+
+ cu_abbrev_map[next_free_abbrev_map_entry].start = start;
+ cu_abbrev_map[next_free_abbrev_map_entry].end = end;
+ cu_abbrev_map[next_free_abbrev_map_entry].list = list;
+ next_free_abbrev_map_entry ++;
+}
static void
-free_abbrevs (void)
+free_all_abbrevs (void)
{
- abbrev_entry *abbrv;
+ abbrev_list * list;
- for (abbrv = first_abbrev; abbrv;)
+ for (list = abbrev_lists; list != NULL;)
{
- abbrev_entry *next_abbrev = abbrv->next;
- abbrev_attr *attr;
+ abbrev_list * next = list->next;
+ abbrev_entry * abbrv;
- for (attr = abbrv->first_attr; attr;)
+ for (abbrv = list->first_abbrev; abbrv != NULL;)
{
- abbrev_attr *next_attr = attr->next;
+ abbrev_entry * next_abbrev = abbrv->next;
+ abbrev_attr * attr;
+
+ for (attr = abbrv->first_attr; attr;)
+ {
+ abbrev_attr *next_attr = attr->next;
- free (attr);
- attr = next_attr;
+ free (attr);
+ attr = next_attr;
+ }
+
+ free (abbrv);
+ abbrv = next_abbrev;
}
- free (abbrv);
- abbrv = next_abbrev;
+ free (list);
+ list = next;
}
- last_abbrev = first_abbrev = NULL;
+ abbrev_lists = NULL;
+}
+
+static abbrev_list *
+new_abbrev_list (dwarf_vma abbrev_base, dwarf_vma abbrev_offset)
+{
+ abbrev_list * list = (abbrev_list *) xcalloc (sizeof * list, 1);
+
+ list->abbrev_base = abbrev_base;
+ list->abbrev_offset = abbrev_offset;
+
+ list->next = abbrev_lists;
+ abbrev_lists = list;
+
+ return list;
+}
+
+static abbrev_list *
+find_abbrev_list_by_abbrev_offset (dwarf_vma abbrev_base,
+ dwarf_vma abbrev_offset)
+{
+ abbrev_list * list;
+
+ for (list = abbrev_lists; list != NULL; list = list->next)
+ if (list->abbrev_base == abbrev_base
+ && list->abbrev_offset == abbrev_offset)
+ return list;
+
+ return NULL;
+}
+
+/* Find the abbreviation map for the CU that includes OFFSET.
+ OFFSET is an absolute offset from the start of the .debug_info section. */
+/* FIXME: This function is going to slow down readelf & objdump.
+ Consider using a better algorithm to mitigate this effect. */
+
+static abbrev_map *
+find_abbrev_map_by_offset (dwarf_vma offset)
+{
+ unsigned long i;
+
+ for (i = 0; i < next_free_abbrev_map_entry; i++)
+ if (cu_abbrev_map[i].start <= offset
+ && cu_abbrev_map[i].end > offset)
+ return cu_abbrev_map + i;
+
+ return NULL;
}
static void
-add_abbrev (unsigned long number, unsigned long tag, int children)
+add_abbrev (unsigned long number,
+ unsigned long tag,
+ int children,
+ abbrev_list * list)
{
- abbrev_entry *entry;
+ abbrev_entry * entry;
- entry = (abbrev_entry *) malloc (sizeof (*entry));
- if (entry == NULL)
- /* ugg */
- return;
+ entry = (abbrev_entry *) xmalloc (sizeof (*entry));
- entry->entry = number;
+ entry->number = number;
entry->tag = tag;
entry->children = children;
entry->first_attr = NULL;
entry->last_attr = NULL;
entry->next = NULL;
- if (first_abbrev == NULL)
- first_abbrev = entry;
+ assert (list != NULL);
+
+ if (list->first_abbrev == NULL)
+ list->first_abbrev = entry;
else
- last_abbrev->next = entry;
+ list->last_abbrev->next = entry;
- last_abbrev = entry;
+ list->last_abbrev = entry;
}
static void
-add_abbrev_attr (unsigned long attribute, unsigned long form,
- bfd_signed_vma implicit_const)
+add_abbrev_attr (unsigned long attribute,
+ unsigned long form,
+ bfd_signed_vma implicit_const,
+ abbrev_list * list)
{
abbrev_attr *attr;
- attr = (abbrev_attr *) malloc (sizeof (*attr));
- if (attr == NULL)
- /* ugg */
- return;
+ attr = (abbrev_attr *) xmalloc (sizeof (*attr));
attr->attribute = attribute;
attr->form = form;
attr->implicit_const = implicit_const;
attr->next = NULL;
- if (last_abbrev->first_attr == NULL)
- last_abbrev->first_attr = attr;
+ assert (list != NULL && list->last_abbrev != NULL);
+
+ if (list->last_abbrev->first_attr == NULL)
+ list->last_abbrev->first_attr = attr;
else
- last_abbrev->last_attr->next = attr;
+ list->last_abbrev->last_attr->next = attr;
- last_abbrev->last_attr = attr;
+ list->last_abbrev->last_attr = attr;
}
/* Processes the (partial) contents of a .debug_abbrev section.
an abbreviation set was found. */
static unsigned char *
-process_abbrev_section (unsigned char *start, unsigned char *end)
+process_abbrev_set (unsigned char * start,
+ const unsigned char * end,
+ abbrev_list * list)
{
- if (first_abbrev != NULL)
- return NULL;
-
while (start < end)
{
- unsigned int bytes_read;
unsigned long entry;
unsigned long tag;
unsigned long attribute;
int children;
- entry = read_uleb128 (start, & bytes_read, end);
- start += bytes_read;
+ READ_ULEB (entry, start, end);
- /* A single zero is supposed to end the section according
+ /* A single zero is supposed to end the set according
to the standard. If there's more, then signal that to
the caller. */
if (start == end)
if (entry == 0)
return start;
- tag = read_uleb128 (start, & bytes_read, end);
- start += bytes_read;
+ READ_ULEB (tag, start, end);
if (start == end)
return NULL;
children = *start++;
- add_abbrev (entry, tag, children);
+ add_abbrev (entry, tag, children, list);
do
{
/* Initialize it due to a false compiler warning. */
bfd_signed_vma implicit_const = -1;
- attribute = read_uleb128 (start, & bytes_read, end);
- start += bytes_read;
+ READ_ULEB (attribute, start, end);
if (start == end)
break;
- form = read_uleb128 (start, & bytes_read, end);
- start += bytes_read;
+ READ_ULEB (form, start, end);
if (start == end)
break;
if (form == DW_FORM_implicit_const)
{
- implicit_const = read_sleb128 (start, & bytes_read, end);
- start += bytes_read;
+ READ_SLEB (implicit_const, start, end);
if (start == end)
break;
}
- add_abbrev_attr (attribute, form, implicit_const);
+ add_abbrev_attr (attribute, form, implicit_const, list);
}
while (attribute != 0);
}
static const char *
get_TAG_name (unsigned long tag)
{
- const char *name = get_DW_TAG_name ((unsigned int)tag);
+ const char *name = get_DW_TAG_name ((unsigned int) tag);
if (name == NULL)
{
static char buffer[100];
- snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
+ if (tag >= DW_TAG_lo_user && tag <= DW_TAG_hi_user)
+ snprintf (buffer, sizeof (buffer), _("User TAG value: %#lx"), tag);
+ else
+ snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %#lx"), tag);
return buffer;
}
struct dwarf_section * section)
{
unsigned op;
- unsigned int bytes_read;
dwarf_vma uvalue;
dwarf_signed_vma svalue;
unsigned char *end = data + length;
printf ("%ld", (long) svalue);
break;
case DW_OP_constu:
- printf ("DW_OP_constu: %s",
- dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
+ printf ("DW_OP_constu: %s", dwarf_vmatoa ("u", uvalue));
break;
case DW_OP_consts:
- printf ("DW_OP_consts: %s",
- dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
- data += bytes_read;
+ READ_SLEB (svalue, data, end);
+ printf ("DW_OP_consts: %s", dwarf_vmatoa ("d", svalue));
break;
case DW_OP_dup:
printf ("DW_OP_dup");
printf ("DW_OP_plus");
break;
case DW_OP_plus_uconst:
- printf ("DW_OP_plus_uconst: %s",
- dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
+ printf ("DW_OP_plus_uconst: %s", dwarf_vmatoa ("u", uvalue));
break;
case DW_OP_shl:
printf ("DW_OP_shl");
case DW_OP_breg29:
case DW_OP_breg30:
case DW_OP_breg31:
- printf ("DW_OP_breg%d (%s): %s",
- op - DW_OP_breg0,
- regname (op - DW_OP_breg0, 1),
- dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
- data += bytes_read;
+ READ_SLEB (svalue, data, end);
+ printf ("DW_OP_breg%d (%s): %s", op - DW_OP_breg0,
+ regname (op - DW_OP_breg0, 1), dwarf_vmatoa ("d", svalue));
break;
case DW_OP_regx:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf ("DW_OP_regx: %s (%s)",
dwarf_vmatoa ("u", uvalue), regname (uvalue, 1));
break;
case DW_OP_fbreg:
need_frame_base = 1;
- printf ("DW_OP_fbreg: %s",
- dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
- data += bytes_read;
+ READ_SLEB (svalue, data, end);
+ printf ("DW_OP_fbreg: %s", dwarf_vmatoa ("d", svalue));
break;
case DW_OP_bregx:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
+ READ_SLEB (svalue, data, end);
printf ("DW_OP_bregx: %s (%s) %s",
dwarf_vmatoa ("u", uvalue), regname (uvalue, 1),
- dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
- data += bytes_read;
+ dwarf_vmatoa ("d", svalue));
break;
case DW_OP_piece:
- printf ("DW_OP_piece: %s",
- dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
+ printf ("DW_OP_piece: %s", dwarf_vmatoa ("u", uvalue));
break;
case DW_OP_deref_size:
SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
printf ("DW_OP_push_object_address");
break;
case DW_OP_call2:
- /* XXX: Strictly speaking for 64-bit DWARF3 files
+ /* FIXME: Strictly speaking for 64-bit DWARF3 files
this ought to be an 8-byte wide computation. */
SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
printf ("DW_OP_call2: <0x%s>",
dwarf_vmatoa ("x", svalue + cu_offset));
break;
case DW_OP_call4:
- /* XXX: Strictly speaking for 64-bit DWARF3 files
+ /* FIXME: Strictly speaking for 64-bit DWARF3 files
this ought to be an 8-byte wide computation. */
SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
printf ("DW_OP_call4: <0x%s>",
dwarf_vmatoa ("x", svalue + cu_offset));
break;
case DW_OP_call_ref:
- /* XXX: Strictly speaking for 64-bit DWARF3 files
+ /* FIXME: Strictly speaking for 64-bit DWARF3 files
this ought to be an 8-byte wide computation. */
if (dwarf_version == -1)
{
break;
case DW_OP_bit_piece:
printf ("DW_OP_bit_piece: ");
- printf (_("size: %s "),
- dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
- data += bytes_read;
- printf (_("offset: %s "),
- dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
+ printf (_("size: %s "), dwarf_vmatoa ("u", uvalue));
+ READ_ULEB (uvalue, data, end);
+ printf (_("offset: %s "), dwarf_vmatoa ("u", uvalue));
break;
/* DWARF 4 extensions. */
case DW_OP_implicit_value:
printf ("DW_OP_implicit_value");
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
data = display_block (data, uvalue, end, ' ');
break;
break;
case DW_OP_implicit_pointer:
case DW_OP_GNU_implicit_pointer:
- /* XXX: Strictly speaking for 64-bit DWARF3 files
+ /* FIXME: Strictly speaking for 64-bit DWARF3 files
this ought to be an 8-byte wide computation. */
if (dwarf_version == -1)
{
{
SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
}
+ READ_SLEB (svalue, data, end);
printf ("%s: <0x%s> %s",
(op == DW_OP_implicit_pointer
? "DW_OP_implicit_pointer" : "DW_OP_GNU_implicit_pointer"),
dwarf_vmatoa ("x", uvalue),
- dwarf_vmatoa ("d", read_sleb128 (data,
- &bytes_read, end)));
- data += bytes_read;
+ dwarf_vmatoa ("d", svalue));
break;
case DW_OP_entry_value:
case DW_OP_GNU_entry_value:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
/* PR 17531: file: 0cc9cd00. */
if (uvalue > (dwarf_vma) (end - data))
uvalue = end - data;
break;
case DW_OP_const_type:
case DW_OP_GNU_const_type:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf ("%s: <0x%s> ",
(op == DW_OP_const_type ? "DW_OP_const_type"
: "DW_OP_GNU_const_type"),
break;
case DW_OP_regval_type:
case DW_OP_GNU_regval_type:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf ("%s: %s (%s)",
(op == DW_OP_regval_type ? "DW_OP_regval_type"
: "DW_OP_GNU_regval_type"),
dwarf_vmatoa ("u", uvalue), regname (uvalue, 1));
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue));
break;
case DW_OP_deref_type:
(op == DW_OP_deref_type ? "DW_OP_deref_type"
: "DW_OP_GNU_deref_type"),
(long) uvalue);
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue));
break;
case DW_OP_convert:
case DW_OP_GNU_convert:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf ("%s <0x%s>",
(op == DW_OP_convert ? "DW_OP_convert" : "DW_OP_GNU_convert"),
dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0));
break;
case DW_OP_reinterpret:
case DW_OP_GNU_reinterpret:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf ("%s <0x%s>",
(op == DW_OP_reinterpret ? "DW_OP_reinterpret"
: "DW_OP_GNU_reinterpret"),
dwarf_vmatoa ("x", cu_offset + uvalue));
break;
case DW_OP_GNU_addr_index:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue));
break;
case DW_OP_GNU_const_index:
- uvalue = read_uleb128 (data, &bytes_read, end);
- data += bytes_read;
+ READ_ULEB (uvalue, data, end);
printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue));
break;
+ case DW_OP_GNU_variable_value:
+ /* FIXME: Strictly speaking for 64-bit DWARF3 files
+ this ought to be an 8-byte wide computation. */
+ if (dwarf_version == -1)
+ {
+ printf (_("(DW_OP_GNU_variable_value in frame info)"));
+ /* No way to tell where the next op is, so just bail. */
+ return need_frame_base;
+ }
+ if (dwarf_version == 2)
+ {
+ SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
+ }
+ else
+ {
+ SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
+ }
+ printf ("DW_OP_GNU_variable_value: <0x%s>", dwarf_vmatoa ("x", uvalue));
+ break;
/* HP extensions. */
case DW_OP_HP_is_value:
* low_bits = tmp;
}
-static unsigned char *
-read_and_display_attr_value (unsigned long attribute,
- unsigned long form,
- dwarf_signed_vma implicit_const,
- unsigned char * data,
- unsigned char * end,
- dwarf_vma cu_offset,
- dwarf_vma pointer_size,
- dwarf_vma offset_size,
- int dwarf_version,
- debug_info * debug_info_p,
- int do_loc,
- struct dwarf_section * section,
- struct cu_tu_set * this_set, char delimiter)
+static const char *
+fetch_alt_indirect_string (dwarf_vma offset)
{
- dwarf_vma uvalue = 0;
- unsigned char *block_start = NULL;
- unsigned char * orig_data = data;
- unsigned int bytes_read;
+ separate_info * i;
- if (data > end || (data == end && form != DW_FORM_flag_present))
+ if (! do_follow_links)
+ return "";
+
+ if (first_separate_info == NULL)
+ return _("<no links available>");
+
+ for (i = first_separate_info; i != NULL; i = i->next)
{
- warn (_("Corrupt attribute\n"));
- return data;
+ struct dwarf_section * section;
+ const char * ret;
+
+ if (! load_debug_section (separate_debug_str, i->handle))
+ continue;
+
+ section = &debug_displays [separate_debug_str].section;
+
+ if (section->start == NULL)
+ continue;
+
+ if (offset >= section->size)
+ continue;
+
+ ret = (const char *) (section->start + offset);
+ /* Unfortunately we cannot rely upon the .debug_str section ending with a
+ NUL byte. Since our caller is expecting to receive a well formed C
+ string we test for the lack of a terminating byte here. */
+ if (strnlen ((const char *) ret, section->size - offset)
+ == section->size - offset)
+ return _("<no NUL byte at end of alt .debug_str section>");
+
+ return ret;
}
- switch (form)
+ warn (_("DW_FORM_GNU_strp_alt offset (%s) too big or no string sections available\n"),
+ dwarf_vmatoa ("x", offset));
+ return _("<offset is too big>");
+}
+
+static const char *
+get_AT_name (unsigned long attribute)
+{
+ const char *name;
+
+ if (attribute == 0)
+ return "DW_AT value: 0";
+
+ /* One value is shared by the MIPS and HP extensions: */
+ if (attribute == DW_AT_MIPS_fde)
+ return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
+
+ name = get_DW_AT_name (attribute);
+
+ if (name == NULL)
{
- default:
- break;
+ static char buffer[100];
+
+ snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
+ attribute);
+ return buffer;
+ }
+
+ return name;
+}
+
+static void
+add_dwo_info (const char * value, dwarf_vma cu_offset, dwo_type type)
+{
+ dwo_info * dwinfo = xmalloc (sizeof * dwinfo);
+
+ dwinfo->type = type;
+ dwinfo->value = value;
+ dwinfo->cu_offset = cu_offset;
+ dwinfo->next = first_dwo_info;
+ first_dwo_info = dwinfo;
+}
+
+static void
+add_dwo_name (const char * name, dwarf_vma cu_offset)
+{
+ add_dwo_info (name, cu_offset, DWO_NAME);
+}
+
+static void
+add_dwo_dir (const char * dir, dwarf_vma cu_offset)
+{
+ add_dwo_info (dir, cu_offset, DWO_DIR);
+}
+
+static void
+add_dwo_id (const char * id, dwarf_vma cu_offset)
+{
+ add_dwo_info (id, cu_offset, DWO_ID);
+}
+
+static void
+free_dwo_info (void)
+{
+ dwo_info * dwinfo;
+ dwo_info * next;
+
+ for (dwinfo = first_dwo_info; dwinfo != NULL; dwinfo = next)
+ {
+ next = dwinfo->next;
+ free (dwinfo);
+ }
+ first_dwo_info = NULL;
+}
+
+/* Ensure that START + UVALUE is less than END.
+ Return an adjusted UVALUE if necessary to ensure this relationship. */
+
+static inline dwarf_vma
+check_uvalue (const unsigned char * start,
+ dwarf_vma uvalue,
+ const unsigned char * end)
+{
+ dwarf_vma max_uvalue = end - start;
+
+ /* See PR 17512: file: 008-103549-0.001:0.1.
+ and PR 24829 for examples of where these tests are triggered. */
+ if (uvalue > max_uvalue)
+ {
+ warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
+ uvalue = max_uvalue;
+ }
+
+ return uvalue;
+}
+
+static unsigned char *
+skip_attr_bytes (unsigned long form,
+ unsigned char * data,
+ unsigned const char * end,
+ dwarf_vma pointer_size,
+ dwarf_vma offset_size,
+ int dwarf_version,
+ dwarf_vma * value_return)
+{
+ dwarf_signed_vma svalue;
+ dwarf_vma uvalue = 0;
+ * value_return = 0;
+
+ switch (form)
+ {
case DW_FORM_ref_addr:
if (dwarf_version == 2)
SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
- else if (dwarf_version == 3 || dwarf_version == 4)
+ else if (dwarf_version > 2)
SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
else
- error (_("Internal error: DWARF version is not 2, 3 or 4.\n"));
-
+ return NULL;
break;
case DW_FORM_addr:
case DW_FORM_ref1:
case DW_FORM_flag:
case DW_FORM_data1:
+ case DW_FORM_strx1:
+ case DW_FORM_addrx1:
SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
break;
+ case DW_FORM_strx3:
+ case DW_FORM_addrx3:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 3, end);
+ break;
+
case DW_FORM_ref2:
case DW_FORM_data2:
+ case DW_FORM_strx2:
+ case DW_FORM_addrx2:
SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end);
break;
case DW_FORM_ref4:
case DW_FORM_data4:
+ case DW_FORM_strx4:
+ case DW_FORM_addrx4:
SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
break;
case DW_FORM_sdata:
- uvalue = read_sleb128 (data, & bytes_read, end);
- data += bytes_read;
- break;
-
- case DW_FORM_GNU_str_index:
- uvalue = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
+ READ_SLEB (svalue, data, end);
+ uvalue = svalue;
break;
case DW_FORM_ref_udata:
case DW_FORM_udata:
- uvalue = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- break;
-
- case DW_FORM_indirect:
- form = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- if (!do_loc)
- printf ("%c%s", delimiter, get_FORM_name (form));
- if (form == DW_FORM_implicit_const)
- {
- implicit_const = read_sleb128 (data, & bytes_read, end);
- data += bytes_read;
- }
- return read_and_display_attr_value (attribute, form, implicit_const, data,
- end, cu_offset, pointer_size,
- offset_size, dwarf_version,
- debug_info_p, do_loc,
- section, this_set, delimiter);
- case DW_FORM_GNU_addr_index:
- uvalue = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- break;
- }
-
- switch (form)
- {
- case DW_FORM_ref_addr:
- if (!do_loc)
- printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x",uvalue));
- break;
-
- case DW_FORM_GNU_ref_alt:
- if (!do_loc)
- printf ("%c<alt 0x%s>", delimiter, dwarf_vmatoa ("x",uvalue));
- break;
-
- case DW_FORM_ref1:
- case DW_FORM_ref2:
- case DW_FORM_ref4:
- case DW_FORM_ref_udata:
- if (!do_loc)
- printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x", uvalue + cu_offset));
- break;
-
- case DW_FORM_data4:
- case DW_FORM_addr:
- case DW_FORM_sec_offset:
- if (!do_loc)
- printf ("%c0x%s", delimiter, dwarf_vmatoa ("x", uvalue));
- break;
-
- case DW_FORM_flag_present:
- case DW_FORM_flag:
- case DW_FORM_data1:
- case DW_FORM_data2:
- case DW_FORM_sdata:
- case DW_FORM_udata:
- if (!do_loc)
- printf ("%c%s", delimiter, dwarf_vmatoa ("d", uvalue));
- break;
-
- case DW_FORM_implicit_const:
- if (!do_loc)
- printf ("%c%s", delimiter, dwarf_vmatoa ("d", implicit_const));
+ case DW_FORM_GNU_str_index:
+ case DW_FORM_strx:
+ case DW_FORM_GNU_addr_index:
+ case DW_FORM_addrx:
+ READ_ULEB (uvalue, data, end);
break;
case DW_FORM_ref8:
- case DW_FORM_data8:
- if (!do_loc)
- {
- dwarf_vma high_bits;
- dwarf_vma utmp;
- char buf[64];
-
- SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
- utmp = uvalue;
- if (form == DW_FORM_ref8)
- add64 (& high_bits, & utmp, cu_offset);
- printf ("%c0x%s", delimiter,
- dwarf_vmatoa64 (high_bits, utmp, buf, sizeof (buf)));
- }
+ {
+ dwarf_vma high_bits;
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
- {
- if (sizeof (uvalue) == 8)
- SAFE_BYTE_GET (uvalue, data, 8, end);
- else
- error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n"));
- }
+ SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
+ data += 8;
+ if (sizeof (uvalue) > 4)
+ uvalue += high_bits << 32;
+ else if (high_bits != 0)
+ {
+ /* FIXME: What to do ? */
+ return NULL;
+ }
+ break;
+ }
+ case DW_FORM_data8:
+ case DW_FORM_ref_sig8:
data += 8;
break;
case DW_FORM_data16:
- if (!do_loc)
- {
- dwarf_vma left_high_bits, left_low_bits;
- dwarf_vma right_high_bits, right_low_bits;
-
- SAFE_BYTE_GET64 (data, &left_high_bits, &left_low_bits, end);
- SAFE_BYTE_GET64 (data + 8, &right_high_bits, &right_low_bits, end);
- if (byte_get == byte_get_little_endian)
- {
- /* Swap them. */
- left_high_bits ^= right_high_bits;
- right_high_bits ^= left_high_bits;
- left_high_bits ^= right_high_bits;
- left_low_bits ^= right_low_bits;
- right_low_bits ^= left_low_bits;
- left_low_bits ^= right_low_bits;
- }
- printf (" 0x%08" DWARF_VMA_FMT "x%08" DWARF_VMA_FMT "x"
- "%08" DWARF_VMA_FMT "x%08" DWARF_VMA_FMT "x",
- left_high_bits, left_low_bits, right_high_bits,
- right_low_bits);
- }
data += 16;
break;
case DW_FORM_string:
- if (!do_loc)
- printf ("%c%.*s", delimiter, (int) (end - data), data);
data += strnlen ((char *) data, end - data) + 1;
break;
case DW_FORM_block:
case DW_FORM_exprloc:
- uvalue = read_uleb128 (data, & bytes_read, end);
- block_start = data + bytes_read;
- if (block_start >= end)
- {
- warn (_("Block ends prematurely\n"));
- uvalue = 0;
- block_start = end;
- }
- /* FIXME: Testing "(block_start + uvalue) < block_start" miscompiles with
- gcc 4.8.3 running on an x86_64 host in 32-bit mode. So we pre-compute
- block_start + uvalue here. */
- data = block_start + uvalue;
- /* PR 17512: file: 008-103549-0.001:0.1. */
- if (block_start + uvalue > end || data < block_start)
- {
- warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
- uvalue = end - block_start;
- }
- if (do_loc)
- data = block_start + uvalue;
- else
- data = display_block (block_start, uvalue, end, delimiter);
+ READ_ULEB (uvalue, data, end);
+ data += uvalue;
break;
case DW_FORM_block1:
SAFE_BYTE_GET (uvalue, data, 1, end);
- block_start = data + 1;
- if (block_start >= end)
- {
- warn (_("Block ends prematurely\n"));
- uvalue = 0;
- block_start = end;
- }
- data = block_start + uvalue;
- if (block_start + uvalue > end || data < block_start)
- {
- warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
- uvalue = end - block_start;
- }
- if (do_loc)
- data = block_start + uvalue;
- else
- data = display_block (block_start, uvalue, end, delimiter);
+ data += 1 + uvalue;
break;
case DW_FORM_block2:
SAFE_BYTE_GET (uvalue, data, 2, end);
- block_start = data + 2;
- if (block_start >= end)
- {
- warn (_("Block ends prematurely\n"));
- uvalue = 0;
- block_start = end;
- }
- data = block_start + uvalue;
- if (block_start + uvalue > end || data < block_start)
- {
- warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
- uvalue = end - block_start;
- }
- if (do_loc)
- data = block_start + uvalue;
- else
- data = display_block (block_start, uvalue, end, delimiter);
+ data += 2 + uvalue;
break;
case DW_FORM_block4:
SAFE_BYTE_GET (uvalue, data, 4, end);
- block_start = data + 4;
- /* PR 17512: file: 3371-3907-0.004. */
- if (block_start >= end)
- {
- warn (_("Block ends prematurely\n"));
- uvalue = 0;
- block_start = end;
- }
- data = block_start + uvalue;
- if (block_start + uvalue > end
- /* PR 17531: file: 5b5f0592. */
- || data < block_start)
- {
- warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
- uvalue = end - block_start;
- }
- if (do_loc)
- data = block_start + uvalue;
- else
- data = display_block (block_start, uvalue, end, delimiter);
+ data += 4 + uvalue;
break;
- case DW_FORM_strp:
- if (!do_loc)
- printf (_("%c(indirect string, offset: 0x%s): %s"), delimiter,
- dwarf_vmatoa ("x", uvalue),
- fetch_indirect_string (uvalue));
- break;
+ case DW_FORM_indirect:
+ READ_ULEB (form, data, end);
+ if (form == DW_FORM_implicit_const)
+ SKIP_ULEB (data, end);
+ return skip_attr_bytes (form, data, end, pointer_size, offset_size, dwarf_version, value_return);
- case DW_FORM_line_strp:
- if (!do_loc)
- printf (_("%c(indirect line string, offset: 0x%s): %s"), delimiter,
- dwarf_vmatoa ("x", uvalue),
- fetch_indirect_line_string (uvalue));
- break;
+ default:
+ return NULL;
+ }
- case DW_FORM_GNU_str_index:
- if (!do_loc)
- {
- const char *suffix = strrchr (section->name, '.');
- int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0;
+ * value_return = uvalue;
+ if (data > end)
+ data = (unsigned char *) end;
+ return data;
+}
- printf (_("%c(indexed string: 0x%s): %s"), delimiter,
- dwarf_vmatoa ("x", uvalue),
- fetch_indexed_string (uvalue, this_set, offset_size, dwo));
- }
- break;
+/* Given form FORM with value UVALUE, locate and return the abbreviation
+ associated with it. */
+
+static abbrev_entry *
+get_type_abbrev_from_form (unsigned long form,
+ unsigned long uvalue,
+ dwarf_vma cu_offset,
+ const struct dwarf_section * section,
+ unsigned long * abbrev_num_return,
+ unsigned char ** data_return,
+ unsigned long * cu_offset_return)
+{
+ unsigned long abbrev_number;
+ abbrev_map * map;
+ abbrev_entry * entry;
+ unsigned char * data;
- case DW_FORM_GNU_strp_alt:
- if (!do_loc)
- printf (_("%c(alt indirect string, offset: 0x%s)"), delimiter,
- dwarf_vmatoa ("x", uvalue));
+ if (abbrev_num_return != NULL)
+ * abbrev_num_return = 0;
+ if (data_return != NULL)
+ * data_return = NULL;
+
+ switch (form)
+ {
+ case DW_FORM_GNU_ref_alt:
+ case DW_FORM_ref_sig8:
+ /* FIXME: We are unable to handle this form at the moment. */
+ return NULL;
+
+ case DW_FORM_ref_addr:
+ if (uvalue >= section->size)
+ {
+ warn (_("Unable to resolve ref_addr form: uvalue %lx > section size %lx (%s)\n"),
+ uvalue, (long) section->size, section->name);
+ return NULL;
+ }
break;
- case DW_FORM_indirect:
- /* Handled above. */
+ case DW_FORM_ref_sup4:
+ case DW_FORM_ref_sup8:
break;
- case DW_FORM_ref_sig8:
- if (!do_loc)
+ case DW_FORM_ref1:
+ case DW_FORM_ref2:
+ case DW_FORM_ref4:
+ case DW_FORM_ref8:
+ case DW_FORM_ref_udata:
+ if (uvalue + cu_offset > section->size)
{
- dwarf_vma high_bits;
- char buf[64];
-
- SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
- printf ("%csignature: 0x%s", delimiter,
- dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf)));
+ warn (_("Unable to resolve ref form: uvalue %lx + cu_offset %lx > section size %lx\n"),
+ uvalue, (long) cu_offset, (long) section->size);
+ return NULL;
}
- data += 8;
+ uvalue += cu_offset;
break;
- case DW_FORM_GNU_addr_index:
- if (!do_loc)
- printf (_("%c(addr_index: 0x%s): %s"), delimiter,
- dwarf_vmatoa ("x", uvalue),
- fetch_indexed_value (uvalue * pointer_size, pointer_size));
- break;
+ /* FIXME: Are there other DW_FORMs that can be used by types ? */
default:
- warn (_("Unrecognized form: %lu\n"), form);
+ warn (_("Unexpected form %lx encountered whilst finding abbreviation for type\n"), form);
+ return NULL;
+ }
+
+ data = (unsigned char *) section->start + uvalue;
+ map = find_abbrev_map_by_offset (uvalue);
+
+ if (map == NULL)
+ {
+ warn (_("Unable to find abbreviations for CU offset %#lx\n"), uvalue);
+ return NULL;
+ }
+ if (map->list == NULL)
+ {
+ warn (_("Empty abbreviation list encountered for CU offset %lx\n"), uvalue);
+ return NULL;
+ }
+
+ if (cu_offset_return != NULL)
+ {
+ if (form == DW_FORM_ref_addr)
+ * cu_offset_return = map->start;
+ else
+ * cu_offset_return = cu_offset;
+ }
+
+ READ_ULEB (abbrev_number, data, section->start + section->size);
+
+ for (entry = map->list->first_abbrev; entry != NULL; entry = entry->next)
+ if (entry->number == abbrev_number)
break;
+
+ if (abbrev_num_return != NULL)
+ * abbrev_num_return = abbrev_number;
+
+ if (data_return != NULL)
+ * data_return = data;
+
+ if (entry == NULL)
+ warn (_("Unable to find entry for abbreviation %lu\n"), abbrev_number);
+
+ return entry;
+}
+
+/* Return IS_SIGNED set to TRUE if the type using abbreviation ENTRY
+ can be determined to be a signed type. The data for ENTRY can be
+ found starting at DATA. */
+
+static void
+get_type_signedness (abbrev_entry *entry,
+ const struct dwarf_section *section,
+ unsigned char *data,
+ unsigned const char *end,
+ dwarf_vma cu_offset,
+ dwarf_vma pointer_size,
+ dwarf_vma offset_size,
+ int dwarf_version,
+ bool *is_signed,
+ unsigned int nesting)
+{
+ abbrev_attr * attr;
+
+ * is_signed = false;
+
+#define MAX_NESTING 20
+ if (nesting > MAX_NESTING)
+ {
+ /* FIXME: Warn - or is this expected ?
+ NB/ We need to avoid infinite recursion. */
+ return;
}
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0
- && debug_info_p != NULL)
+ for (attr = entry->first_attr;
+ attr != NULL && attr->attribute;
+ attr = attr->next)
{
- switch (attribute)
+ unsigned char * orig_data = data;
+ dwarf_vma uvalue = 0;
+
+ data = skip_attr_bytes (attr->form, data, end, pointer_size,
+ offset_size, dwarf_version, & uvalue);
+ if (data == NULL)
+ return;
+
+ switch (attr->attribute)
{
- case DW_AT_frame_base:
- have_frame_base = 1;
- /* Fall through. */
- case DW_AT_location:
- case DW_AT_GNU_locviews:
- case DW_AT_string_length:
- case DW_AT_return_addr:
- case DW_AT_data_member_location:
- case DW_AT_vtable_elem_location:
- case DW_AT_segment:
- case DW_AT_static_link:
- case DW_AT_use_location:
- case DW_AT_call_value:
- case DW_AT_GNU_call_site_value:
- case DW_AT_call_data_value:
- case DW_AT_GNU_call_site_data_value:
- case DW_AT_call_target:
- case DW_AT_GNU_call_site_target:
- case DW_AT_call_target_clobbered:
- case DW_AT_GNU_call_site_target_clobbered:
- if ((dwarf_version < 4
- && (form == DW_FORM_data4 || form == DW_FORM_data8))
- || form == DW_FORM_sec_offset)
+ case DW_AT_linkage_name:
+ case DW_AT_name:
+ if (do_wide)
{
- /* Process location list. */
- unsigned int lmax = debug_info_p->max_loc_offsets;
- unsigned int num = debug_info_p->num_loc_offsets;
-
- if (lmax == 0 || num >= lmax)
- {
- lmax += 1024;
- debug_info_p->loc_offsets = (dwarf_vma *)
- xcrealloc (debug_info_p->loc_offsets,
- lmax, sizeof (*debug_info_p->loc_offsets));
- debug_info_p->loc_views = (dwarf_vma *)
- xcrealloc (debug_info_p->loc_views,
- lmax, sizeof (*debug_info_p->loc_views));
- debug_info_p->have_frame_base = (int *)
- xcrealloc (debug_info_p->have_frame_base,
- lmax, sizeof (*debug_info_p->have_frame_base));
- debug_info_p->max_loc_offsets = lmax;
- }
- if (this_set != NULL)
- uvalue += this_set->section_offsets [DW_SECT_LOC];
- debug_info_p->have_frame_base [num] = have_frame_base;
- if (attribute != DW_AT_GNU_locviews)
- {
- debug_info_p->loc_offsets [num] = uvalue;
- debug_info_p->num_loc_offsets++;
- assert (debug_info_p->num_loc_offsets
- - debug_info_p->num_loc_views <= 1);
- }
- else
- {
- assert (debug_info_p->num_loc_views <= num);
- num = debug_info_p->num_loc_views;
- debug_info_p->loc_views [num] = uvalue;
- debug_info_p->num_loc_views++;
- assert (debug_info_p->num_loc_views
- - debug_info_p->num_loc_offsets <= 1);
- }
+ if (attr->form == DW_FORM_strp)
+ printf (", %s", fetch_indirect_string (uvalue));
+ else if (attr->form == DW_FORM_string)
+ printf (", %s", orig_data);
}
break;
- case DW_AT_low_pc:
- if (need_base_address)
- debug_info_p->base_address = uvalue;
- break;
-
- case DW_AT_GNU_addr_base:
- debug_info_p->addr_base = uvalue;
- break;
+ case DW_AT_type:
+ /* Recurse. */
+ {
+ abbrev_entry * type_abbrev;
+ unsigned char * type_data;
+ unsigned long type_cu_offset;
+
+ type_abbrev = get_type_abbrev_from_form (attr->form,
+ uvalue,
+ cu_offset,
+ section,
+ NULL /* abbrev num return */,
+ & type_data,
+ & type_cu_offset);
+ if (type_abbrev == NULL)
+ break;
- case DW_AT_GNU_ranges_base:
- debug_info_p->ranges_base = uvalue;
+ get_type_signedness (type_abbrev, section, type_data, end, type_cu_offset,
+ pointer_size, offset_size, dwarf_version,
+ is_signed, nesting + 1);
+ }
break;
- case DW_AT_ranges:
- if ((dwarf_version < 4
- && (form == DW_FORM_data4 || form == DW_FORM_data8))
- || form == DW_FORM_sec_offset)
+ case DW_AT_encoding:
+ /* Determine signness. */
+ switch (uvalue)
{
- /* Process range list. */
- unsigned int lmax = debug_info_p->max_range_lists;
- unsigned int num = debug_info_p->num_range_lists;
+ case DW_ATE_address:
+ /* FIXME - some architectures have signed addresses. */
+ case DW_ATE_boolean:
+ case DW_ATE_unsigned:
+ case DW_ATE_unsigned_char:
+ case DW_ATE_unsigned_fixed:
+ * is_signed = false;
+ break;
- if (lmax == 0 || num >= lmax)
- {
- lmax += 1024;
- debug_info_p->range_lists = (dwarf_vma *)
- xcrealloc (debug_info_p->range_lists,
- lmax, sizeof (*debug_info_p->range_lists));
- debug_info_p->max_range_lists = lmax;
- }
- debug_info_p->range_lists [num] = uvalue;
- debug_info_p->num_range_lists++;
+ default:
+ case DW_ATE_complex_float:
+ case DW_ATE_float:
+ case DW_ATE_signed:
+ case DW_ATE_signed_char:
+ case DW_ATE_imaginary_float:
+ case DW_ATE_decimal_float:
+ case DW_ATE_signed_fixed:
+ * is_signed = true;
+ break;
}
break;
-
- default:
- break;
}
}
+}
- if (do_loc || attribute == 0)
- return data;
+static void
+read_and_print_leb128 (unsigned char *data,
+ unsigned int *bytes_read,
+ unsigned const char *end,
+ bool is_signed)
+{
+ int status;
+ dwarf_vma val = read_leb128 (data, end, is_signed, bytes_read, &status);
+ if (status != 0)
+ report_leb_status (status, __FILE__, __LINE__);
+ else
+ printf ("%s", dwarf_vmatoa (is_signed ? "d" : "u", val));
+}
- /* For some attributes we can display further information. */
- switch (attribute)
+static void
+display_discr_list (unsigned long form,
+ dwarf_vma uvalue,
+ unsigned char * data,
+ unsigned const char * end,
+ int level)
+{
+ if (uvalue == 0)
{
- case DW_AT_inline:
- printf ("\t");
- switch (uvalue)
- {
- case DW_INL_not_inlined:
- printf (_("(not inlined)"));
- break;
- case DW_INL_inlined:
- printf (_("(inlined)"));
- break;
- case DW_INL_declared_not_inlined:
- printf (_("(declared as inline but ignored)"));
- break;
- case DW_INL_declared_inlined:
- printf (_("(declared as inline and inlined)"));
- break;
- default:
- printf (_(" (Unknown inline attribute value: %s)"),
- dwarf_vmatoa ("x", uvalue));
- break;
- }
+ printf ("[default]");
+ return;
+ }
+
+ switch (form)
+ {
+ case DW_FORM_block:
+ case DW_FORM_block1:
+ case DW_FORM_block2:
+ case DW_FORM_block4:
+ /* Move data pointer back to the start of the byte array. */
+ data -= uvalue;
break;
+ default:
+ printf ("<corrupt>\n");
+ warn (_("corrupt discr_list - not using a block form\n"));
+ return;
+ }
- case DW_AT_language:
- printf ("\t");
- switch (uvalue)
+ if (uvalue < 2)
+ {
+ printf ("<corrupt>\n");
+ warn (_("corrupt discr_list - block not long enough\n"));
+ return;
+ }
+
+ bool is_signed =
+ (level > 0 && level <= MAX_CU_NESTING)
+ ? level_type_signed [level - 1] : false;
+
+ printf ("(");
+ while (uvalue)
+ {
+ unsigned char discriminant;
+ unsigned int bytes_read;
+
+ SAFE_BYTE_GET (discriminant, data, 1, end);
+ -- uvalue;
+ data ++;
+
+ assert (uvalue > 0);
+ switch (discriminant)
{
- /* Ordered by the numeric value of these constants. */
- case DW_LANG_C89: printf ("(ANSI C)"); break;
- case DW_LANG_C: printf ("(non-ANSI C)"); break;
- case DW_LANG_Ada83: printf ("(Ada)"); break;
- case DW_LANG_C_plus_plus: printf ("(C++)"); break;
- case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
- case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
- case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
- case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
- case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
- case DW_LANG_Modula2: printf ("(Modula 2)"); break;
- /* DWARF 2.1 values. */
- case DW_LANG_Java: printf ("(Java)"); break;
- case DW_LANG_C99: printf ("(ANSI C99)"); break;
- case DW_LANG_Ada95: printf ("(ADA 95)"); break;
- case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
- /* DWARF 3 values. */
- case DW_LANG_PLI: printf ("(PLI)"); break;
- case DW_LANG_ObjC: printf ("(Objective C)"); break;
- case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break;
- case DW_LANG_UPC: printf ("(Unified Parallel C)"); break;
- case DW_LANG_D: printf ("(D)"); break;
- /* DWARF 4 values. */
- case DW_LANG_Python: printf ("(Python)"); break;
- /* DWARF 5 values. */
- case DW_LANG_Go: printf ("(Go)"); break;
- case DW_LANG_C_plus_plus_11: printf ("(C++11)"); break;
- case DW_LANG_C11: printf ("(C11)"); break;
- case DW_LANG_C_plus_plus_14: printf ("(C++14)"); break;
- case DW_LANG_Fortran03: printf ("(Fortran 03)"); break;
- case DW_LANG_Fortran08: printf ("(Fortran 08)"); break;
- /* MIPS extension. */
- case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
- /* UPC extension. */
- case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
- default:
- if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
- printf (_("(implementation defined: %s)"),
- dwarf_vmatoa ("x", uvalue));
- else
- printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue));
+ case DW_DSC_label:
+ printf ("label ");
+ read_and_print_leb128 (data, & bytes_read, end, is_signed);
+ assert (bytes_read <= uvalue && bytes_read > 0);
+ uvalue -= bytes_read;
+ data += bytes_read;
break;
- }
- break;
- case DW_AT_encoding:
- printf ("\t");
- switch (uvalue)
- {
- case DW_ATE_void: printf ("(void)"); break;
- case DW_ATE_address: printf ("(machine address)"); break;
- case DW_ATE_boolean: printf ("(boolean)"); break;
- case DW_ATE_complex_float: printf ("(complex float)"); break;
- case DW_ATE_float: printf ("(float)"); break;
- case DW_ATE_signed: printf ("(signed)"); break;
- case DW_ATE_signed_char: printf ("(signed char)"); break;
- case DW_ATE_unsigned: printf ("(unsigned)"); break;
- case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
- /* DWARF 2.1 values: */
- case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
- case DW_ATE_decimal_float: printf ("(decimal float)"); break;
- /* DWARF 3 values: */
- case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break;
- case DW_ATE_numeric_string: printf ("(numeric_string)"); break;
- case DW_ATE_edited: printf ("(edited)"); break;
- case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
- case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
- /* HP extensions: */
- case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
- case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
- case DW_ATE_HP_float128: printf ("(HP_float128)"); break;
- case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break;
- case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
- case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
- case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
- /* DWARF 4 values: */
- case DW_ATE_UTF: printf ("(unicode string)"); break;
+ case DW_DSC_range:
+ printf ("range ");
+ read_and_print_leb128 (data, & bytes_read, end, is_signed);
+ assert (bytes_read <= uvalue && bytes_read > 0);
+ uvalue -= bytes_read;
+ data += bytes_read;
- default:
- if (uvalue >= DW_ATE_lo_user
- && uvalue <= DW_ATE_hi_user)
- printf (_("(user defined type)"));
- else
- printf (_("(unknown type)"));
+ printf ("..");
+ read_and_print_leb128 (data, & bytes_read, end, is_signed);
+ assert (bytes_read <= uvalue && bytes_read > 0);
+ uvalue -= bytes_read;
+ data += bytes_read;
break;
- }
- break;
- case DW_AT_accessibility:
- printf ("\t");
- switch (uvalue)
- {
- case DW_ACCESS_public: printf ("(public)"); break;
- case DW_ACCESS_protected: printf ("(protected)"); break;
- case DW_ACCESS_private: printf ("(private)"); break;
default:
- printf (_("(unknown accessibility)"));
- break;
+ printf ("<corrupt>\n");
+ warn (_("corrupt discr_list - unrecognized discriminant byte %#x\n"),
+ discriminant);
+ return;
}
- break;
- case DW_AT_visibility:
- printf ("\t");
- switch (uvalue)
- {
- case DW_VIS_local: printf ("(local)"); break;
- case DW_VIS_exported: printf ("(exported)"); break;
- case DW_VIS_qualified: printf ("(qualified)"); break;
- default: printf (_("(unknown visibility)")); break;
- }
- break;
+ if (uvalue)
+ printf (", ");
+ }
- case DW_AT_virtuality:
- printf ("\t");
- switch (uvalue)
- {
- case DW_VIRTUALITY_none: printf ("(none)"); break;
- case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
- case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
- default: printf (_("(unknown virtuality)")); break;
- }
- break;
+ if (is_signed)
+ printf (")(signed)");
+ else
+ printf (")(unsigned)");
+}
- case DW_AT_identifier_case:
- printf ("\t");
- switch (uvalue)
- {
- case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
- case DW_ID_up_case: printf ("(up_case)"); break;
- case DW_ID_down_case: printf ("(down_case)"); break;
- case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
- default: printf (_("(unknown case)")); break;
- }
- break;
+static unsigned char *
+read_and_display_attr_value (unsigned long attribute,
+ unsigned long form,
+ dwarf_signed_vma implicit_const,
+ unsigned char * start,
+ unsigned char * data,
+ unsigned char * end,
+ dwarf_vma cu_offset,
+ dwarf_vma pointer_size,
+ dwarf_vma offset_size,
+ int dwarf_version,
+ debug_info * debug_info_p,
+ int do_loc,
+ struct dwarf_section * section,
+ struct cu_tu_set * this_set,
+ char delimiter,
+ int level)
+{
+ dwarf_signed_vma svalue;
+ dwarf_vma uvalue = 0;
+ unsigned char * block_start = NULL;
+ unsigned char * orig_data = data;
- case DW_AT_calling_convention:
- printf ("\t");
- switch (uvalue)
- {
- case DW_CC_normal: printf ("(normal)"); break;
- case DW_CC_program: printf ("(program)"); break;
- case DW_CC_nocall: printf ("(nocall)"); break;
- default:
- if (uvalue >= DW_CC_lo_user
- && uvalue <= DW_CC_hi_user)
- printf (_("(user defined)"));
- else
- printf (_("(unknown convention)"));
- }
+ if (data > end || (data == end && form != DW_FORM_flag_present))
+ {
+ warn (_("Corrupt attribute\n"));
+ return data;
+ }
+
+ if (do_wide && ! do_loc)
+ {
+ /* PR 26847: Display the name of the form. */
+ const char * name = get_FORM_name (form);
+
+ /* For convenience we skip the DW_FORM_ prefix to the name. */
+ if (name[0] == 'D')
+ name += 8; /* strlen ("DW_FORM_") */
+ printf ("%c(%s)", delimiter, name);
+ }
+
+ switch (form)
+ {
+ default:
break;
- case DW_AT_ordering:
- printf ("\t");
- switch (uvalue)
- {
- case -1: printf (_("(undefined)")); break;
- case 0: printf ("(row major)"); break;
- case 1: printf ("(column major)"); break;
- }
+ case DW_FORM_ref_addr:
+ if (dwarf_version == 2)
+ SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
+ else if (dwarf_version > 2)
+ SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
+ else
+ error (_("Internal error: DW_FORM_ref_addr is not supported in DWARF version 1.\n"));
break;
- case DW_AT_frame_base:
- have_frame_base = 1;
- /* Fall through. */
- case DW_AT_location:
- case DW_AT_string_length:
- case DW_AT_return_addr:
- case DW_AT_data_member_location:
- case DW_AT_vtable_elem_location:
- case DW_AT_segment:
- case DW_AT_static_link:
- case DW_AT_use_location:
- case DW_AT_call_value:
- case DW_AT_GNU_call_site_value:
- case DW_AT_call_data_value:
- case DW_AT_GNU_call_site_data_value:
- case DW_AT_call_target:
- case DW_AT_GNU_call_site_target:
- case DW_AT_call_target_clobbered:
- case DW_AT_GNU_call_site_target_clobbered:
- if ((dwarf_version < 4
- && (form == DW_FORM_data4 || form == DW_FORM_data8))
- || form == DW_FORM_sec_offset)
- printf (_(" (location list)"));
- /* Fall through. */
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_data_location:
- case DW_AT_stride:
- case DW_AT_upper_bound:
- case DW_AT_lower_bound:
- if (block_start)
- {
- int need_frame_base;
+ case DW_FORM_addr:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
+ break;
- printf ("\t(");
- need_frame_base = decode_location_expression (block_start,
- pointer_size,
- offset_size,
- dwarf_version,
- uvalue,
- cu_offset, section);
- printf (")");
- if (need_frame_base && !have_frame_base)
- printf (_(" [without DW_AT_frame_base]"));
- }
+ case DW_FORM_strp_sup:
+ case DW_FORM_strp:
+ case DW_FORM_line_strp:
+ case DW_FORM_sec_offset:
+ case DW_FORM_GNU_ref_alt:
+ case DW_FORM_GNU_strp_alt:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
break;
- case DW_AT_import:
- {
- if (form == DW_FORM_ref_sig8
- || form == DW_FORM_GNU_ref_alt)
- break;
+ case DW_FORM_flag_present:
+ uvalue = 1;
+ break;
- if (form == DW_FORM_ref1
- || form == DW_FORM_ref2
- || form == DW_FORM_ref4
- || form == DW_FORM_ref_udata)
- uvalue += cu_offset;
+ case DW_FORM_ref1:
+ case DW_FORM_flag:
+ case DW_FORM_data1:
+ case DW_FORM_strx1:
+ case DW_FORM_addrx1:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
+ break;
- if (uvalue >= section->size)
- warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset 0x%lx is too big.\n"),
- dwarf_vmatoa ("x", uvalue),
- (unsigned long) (orig_data - section->start));
- else
- {
- unsigned long abbrev_number;
- abbrev_entry * entry;
+ case DW_FORM_ref2:
+ case DW_FORM_data2:
+ case DW_FORM_strx2:
+ case DW_FORM_addrx2:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end);
+ break;
- abbrev_number = read_uleb128 (section->start + uvalue, NULL, end);
+ case DW_FORM_strx3:
+ case DW_FORM_addrx3:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 3, end);
+ break;
- printf (_("\t[Abbrev Number: %ld"), abbrev_number);
- /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will
- use different abbrev table, and we don't track .debug_info chunks
- yet. */
- if (form != DW_FORM_ref_addr)
- {
- for (entry = first_abbrev; entry != NULL; entry = entry->next)
- if (entry->entry == abbrev_number)
- break;
- if (entry != NULL)
- printf (" (%s)", get_TAG_name (entry->tag));
- }
- printf ("]");
- }
- }
+ case DW_FORM_ref_sup4:
+ case DW_FORM_ref4:
+ case DW_FORM_data4:
+ case DW_FORM_strx4:
+ case DW_FORM_addrx4:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
break;
- default:
+ case DW_FORM_sdata:
+ READ_SLEB (svalue, data, end);
+ uvalue = svalue;
break;
- }
- return data;
-}
+ case DW_FORM_GNU_str_index:
+ case DW_FORM_strx:
+ case DW_FORM_ref_udata:
+ case DW_FORM_udata:
+ case DW_FORM_GNU_addr_index:
+ case DW_FORM_addrx:
+ READ_ULEB (uvalue, data, end);
+ break;
-static const char *
-get_AT_name (unsigned long attribute)
-{
- const char *name;
+ case DW_FORM_indirect:
+ READ_ULEB (form, data, end);
+ if (!do_loc)
+ printf ("%c%s", delimiter, get_FORM_name (form));
+ if (form == DW_FORM_implicit_const)
+ READ_SLEB (implicit_const, data, end);
+ return read_and_display_attr_value (attribute, form, implicit_const,
+ start, data, end,
+ cu_offset, pointer_size,
+ offset_size, dwarf_version,
+ debug_info_p, do_loc,
+ section, this_set, delimiter, level);
+ }
- if (attribute == 0)
- return "DW_AT value: 0";
+ switch (form)
+ {
+ case DW_FORM_ref_addr:
+ if (!do_loc)
+ printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x", uvalue));
+ break;
- /* One value is shared by the MIPS and HP extensions: */
- if (attribute == DW_AT_MIPS_fde)
- return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
+ case DW_FORM_GNU_ref_alt:
+ if (!do_loc)
+ {
+ if (do_wide)
+ /* We have already printed the form name. */
+ printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x", uvalue));
+ else
+ printf ("%c<alt 0x%s>", delimiter, dwarf_vmatoa ("x", uvalue));
+ }
+ /* FIXME: Follow the reference... */
+ break;
- name = get_DW_AT_name (attribute);
+ case DW_FORM_ref1:
+ case DW_FORM_ref2:
+ case DW_FORM_ref4:
+ case DW_FORM_ref_sup4:
+ case DW_FORM_ref_udata:
+ if (!do_loc)
+ printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x", uvalue + cu_offset));
+ break;
- if (name == NULL)
- {
- static char buffer[100];
+ case DW_FORM_data4:
+ case DW_FORM_addr:
+ case DW_FORM_sec_offset:
+ if (!do_loc)
+ printf ("%c0x%s", delimiter, dwarf_vmatoa ("x", uvalue));
+ break;
- snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
- attribute);
- return buffer;
- }
+ case DW_FORM_flag_present:
+ case DW_FORM_flag:
+ case DW_FORM_data1:
+ case DW_FORM_data2:
+ case DW_FORM_sdata:
+ case DW_FORM_udata:
+ if (!do_loc)
+ printf ("%c%s", delimiter, dwarf_vmatoa ("d", uvalue));
+ break;
- return name;
-}
+ case DW_FORM_implicit_const:
+ if (!do_loc)
+ printf ("%c%s", delimiter, dwarf_vmatoa ("d", implicit_const));
+ break;
-static unsigned char *
-read_and_display_attr (unsigned long attribute,
- unsigned long form,
- dwarf_signed_vma implicit_const,
- unsigned char * data,
- unsigned char * end,
- dwarf_vma cu_offset,
- dwarf_vma pointer_size,
- dwarf_vma offset_size,
- int dwarf_version,
- debug_info * debug_info_p,
- int do_loc,
- struct dwarf_section * section,
- struct cu_tu_set * this_set)
-{
- if (!do_loc)
- printf (" %-18s:", get_AT_name (attribute));
- data = read_and_display_attr_value (attribute, form, implicit_const, data, end,
- cu_offset, pointer_size, offset_size,
- dwarf_version, debug_info_p,
- do_loc, section, this_set, ' ');
- if (!do_loc)
- printf ("\n");
- return data;
-}
+ case DW_FORM_ref_sup8:
+ case DW_FORM_ref8:
+ case DW_FORM_data8:
+ if (!do_loc)
+ {
+ dwarf_vma high_bits;
+ dwarf_vma utmp;
+ char buf[64];
-/* Process the contents of a .debug_info section. If do_loc is non-zero
- then we are scanning for location lists and we do not want to display
- anything to the user. If do_types is non-zero, we are processing
- a .debug_types section instead of a .debug_info section. */
+ SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
+ utmp = uvalue;
+ if (form == DW_FORM_ref8)
+ add64 (& high_bits, & utmp, cu_offset);
+ printf ("%c0x%s", delimiter,
+ dwarf_vmatoa64 (high_bits, utmp, buf, sizeof (buf)));
+ }
-static int
-process_debug_info (struct dwarf_section *section,
- void *file,
- enum dwarf_section_display_enum abbrev_sec,
- int do_loc,
- int do_types)
-{
- unsigned char *start = section->start;
- unsigned char *end = start + section->size;
- unsigned char *section_begin;
- unsigned int unit;
- unsigned int num_units = 0;
+ if ((do_loc || do_debug_loc || do_debug_ranges)
+ && num_debug_info_entries == 0)
+ {
+ if (sizeof (uvalue) == 8)
+ SAFE_BYTE_GET (uvalue, data, 8, end);
+ else
+ error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n"));
+ }
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0
- && ! do_types)
- {
- dwarf_vma length;
+ data += 8;
+ break;
- /* First scan the section to get the number of comp units. */
- for (section_begin = start, num_units = 0; section_begin < end;
- num_units ++)
+ case DW_FORM_data16:
+ if (!do_loc)
{
- /* Read the first 4 bytes. For a 32-bit DWARF section, this
- will be the length. For a 64-bit DWARF section, it'll be
- the escape code 0xffffffff followed by an 8 byte length. */
- SAFE_BYTE_GET (length, section_begin, 4, end);
+ dwarf_vma left_high_bits, left_low_bits;
+ dwarf_vma right_high_bits, right_low_bits;
- if (length == 0xffffffff)
+ SAFE_BYTE_GET64 (data, &left_high_bits, &left_low_bits, end);
+ SAFE_BYTE_GET64 (data + 8, &right_high_bits, &right_low_bits, end);
+ if (byte_get == byte_get_little_endian)
{
- SAFE_BYTE_GET (length, section_begin + 4, 8, end);
- section_begin += length + 12;
- }
- else if (length >= 0xfffffff0 && length < 0xffffffff)
- {
- warn (_("Reserved length value (0x%s) found in section %s\n"),
- dwarf_vmatoa ("x", length), section->name);
- return 0;
- }
- else
- section_begin += length + 4;
-
- /* Negative values are illegal, they may even cause infinite
- looping. This can happen if we can't accurately apply
- relocations to an object file, or if the file is corrupt. */
- if ((signed long) length <= 0 || section_begin < start)
- {
- warn (_("Corrupt unit length (0x%s) found in section %s\n"),
- dwarf_vmatoa ("x", length), section->name);
- return 0;
+ /* Swap them. */
+ left_high_bits ^= right_high_bits;
+ right_high_bits ^= left_high_bits;
+ left_high_bits ^= right_high_bits;
+ left_low_bits ^= right_low_bits;
+ right_low_bits ^= left_low_bits;
+ left_low_bits ^= right_low_bits;
}
+ printf (" 0x%08" DWARF_VMA_FMT "x%08" DWARF_VMA_FMT "x"
+ "%08" DWARF_VMA_FMT "x%08" DWARF_VMA_FMT "x",
+ left_high_bits, left_low_bits, right_high_bits,
+ right_low_bits);
}
+ data += 16;
+ break;
- if (num_units == 0)
- {
- error (_("No comp units in %s section ?\n"), section->name);
- return 0;
- }
+ case DW_FORM_string:
+ if (!do_loc)
+ printf ("%c%.*s", delimiter, (int) (end - data), data);
+ data += strnlen ((char *) data, end - data) + 1;
+ break;
- /* Then allocate an array to hold the information. */
- debug_information = (debug_info *) cmalloc (num_units,
- sizeof (* debug_information));
- if (debug_information == NULL)
+ case DW_FORM_block:
+ case DW_FORM_exprloc:
+ READ_ULEB (uvalue, data, end);
+ do_block:
+ block_start = data;
+ if (block_start >= end)
{
- error (_("Not enough memory for a debug info array of %u entries\n"),
- num_units);
- alloc_num_debug_info_entries = num_debug_info_entries = 0;
- return 0;
+ warn (_("Block ends prematurely\n"));
+ uvalue = 0;
+ block_start = end;
}
- /* PR 17531: file: 92ca3797.
- We cannot rely upon the debug_information array being initialised
- before it is used. A corrupt file could easily contain references
- to a unit for which information has not been made available. So
- we ensure that the array is zeroed here. */
- memset (debug_information, 0, num_units * sizeof (*debug_information));
-
- alloc_num_debug_info_entries = num_units;
- }
-
- if (!do_loc)
- {
- if (dwarf_start_die == 0)
- printf (_("Contents of the %s section:\n\n"), section->name);
- load_debug_section (str, file);
- load_debug_section (line_str, file);
- load_debug_section (str_dwo, file);
- load_debug_section (str_index, file);
- load_debug_section (str_index_dwo, file);
- load_debug_section (debug_addr, file);
- }
+ uvalue = check_uvalue (block_start, uvalue, end);
- load_debug_section (abbrev_sec, file);
- if (debug_displays [abbrev_sec].section.start == NULL)
- {
- warn (_("Unable to locate %s section!\n"),
- debug_displays [abbrev_sec].section.name);
- return 0;
- }
+ if (do_loc)
+ data = block_start + uvalue;
+ else
+ data = display_block (block_start, uvalue, end, delimiter);
+ break;
- for (section_begin = start, unit = 0; start < end; unit++)
- {
- DWARF2_Internal_CompUnit compunit;
- unsigned char *hdrptr;
- unsigned char *tags;
- int level, last_level, saved_level;
- dwarf_vma cu_offset;
- unsigned long sec_off;
- unsigned int offset_size;
- unsigned int initial_length_size;
- dwarf_vma signature_high = 0;
- dwarf_vma signature_low = 0;
- dwarf_vma type_offset = 0;
- struct cu_tu_set *this_set;
- dwarf_vma abbrev_base;
- size_t abbrev_size;
+ case DW_FORM_block1:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
+ goto do_block;
- hdrptr = start;
+ case DW_FORM_block2:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end);
+ goto do_block;
- SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end);
+ case DW_FORM_block4:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
+ goto do_block;
- if (compunit.cu_length == 0xffffffff)
- {
- SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end);
- offset_size = 8;
- initial_length_size = 12;
- }
- else
+ case DW_FORM_strp:
+ if (!do_loc)
{
- offset_size = 4;
- initial_length_size = 4;
+ if (do_wide)
+ /* We have already displayed the form name. */
+ printf (_("%c(offset: 0x%s): %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indirect_string (uvalue));
+ else
+ printf (_("%c(indirect string, offset: 0x%s): %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indirect_string (uvalue));
}
+ break;
- SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end);
-
- cu_offset = start - section_begin;
-
- this_set = find_cu_tu_set_v2 (cu_offset, do_types);
-
- if (compunit.cu_version < 5)
+ case DW_FORM_line_strp:
+ if (!do_loc)
{
- compunit.cu_unit_type = DW_UT_compile;
- /* Initialize it due to a false compiler warning. */
- compunit.cu_pointer_size = -1;
+ if (do_wide)
+ /* We have already displayed the form name. */
+ printf (_("%c(offset: 0x%s): %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indirect_line_string (uvalue));
+ else
+ printf (_("%c(indirect line string, offset: 0x%s): %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indirect_line_string (uvalue));
}
- else
+ break;
+
+ case DW_FORM_GNU_str_index:
+ case DW_FORM_strx:
+ case DW_FORM_strx1:
+ case DW_FORM_strx2:
+ case DW_FORM_strx3:
+ case DW_FORM_strx4:
+ if (!do_loc)
{
- SAFE_BYTE_GET_AND_INC (compunit.cu_unit_type, hdrptr, 1, end);
- do_types = (compunit.cu_unit_type == DW_UT_type);
+ const char *suffix = strrchr (section->name, '.');
+ bool dwo = suffix && strcmp (suffix, ".dwo") == 0;
- SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
+ if (do_wide)
+ /* We have already displayed the form name. */
+ printf (_("%c(offset: 0x%s): %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indexed_string (uvalue, this_set, offset_size, dwo));
+ else
+ printf (_("%c(indexed string: 0x%s): %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indexed_string (uvalue, this_set, offset_size, dwo));
}
+ break;
- SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end);
-
- if (this_set == NULL)
- {
- abbrev_base = 0;
- abbrev_size = debug_displays [abbrev_sec].section.size;
- }
- else
+ case DW_FORM_GNU_strp_alt:
+ if (!do_loc)
{
- abbrev_base = this_set->section_offsets [DW_SECT_ABBREV];
- abbrev_size = this_set->section_sizes [DW_SECT_ABBREV];
+ if (do_wide)
+ /* We have already displayed the form name. */
+ printf (_("%c(offset: 0x%s) %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_alt_indirect_string (uvalue));
+ else
+ printf (_("%c(alt indirect string, offset: 0x%s) %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_alt_indirect_string (uvalue));
}
+ break;
- if (compunit.cu_version < 5)
- SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
-
- /* PR 17512: file: 001-108546-0.001:0.1. */
- if (compunit.cu_pointer_size < 2 || compunit.cu_pointer_size > 8)
- {
- warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"),
- compunit.cu_pointer_size, offset_size);
- compunit.cu_pointer_size = offset_size;
- }
+ case DW_FORM_indirect:
+ /* Handled above. */
+ break;
- if (do_types)
+ case DW_FORM_ref_sig8:
+ if (!do_loc)
{
- SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end);
- hdrptr += 8;
- SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end);
- }
+ dwarf_vma high_bits;
+ char buf[64];
- if (dwarf_start_die > (cu_offset + compunit.cu_length
- + initial_length_size))
- {
- start = section_begin + cu_offset + compunit.cu_length
- + initial_length_size;
- continue;
+ SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
+ if (do_wide)
+ /* We have already displayed the form name. */
+ printf ("%c: 0x%s", delimiter,
+ dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf)));
+ else
+ printf ("%csignature: 0x%s", delimiter,
+ dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf)));
}
+ data += 8;
+ break;
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0
- && ! do_types)
+ case DW_FORM_GNU_addr_index:
+ case DW_FORM_addrx:
+ case DW_FORM_addrx1:
+ case DW_FORM_addrx2:
+ case DW_FORM_addrx3:
+ case DW_FORM_addrx4:
+ if (!do_loc)
{
- debug_information [unit].cu_offset = cu_offset;
- debug_information [unit].pointer_size
- = compunit.cu_pointer_size;
- debug_information [unit].offset_size = offset_size;
- debug_information [unit].dwarf_version = compunit.cu_version;
- debug_information [unit].base_address = 0;
- debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE;
- debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE;
- debug_information [unit].loc_offsets = NULL;
- debug_information [unit].have_frame_base = NULL;
- debug_information [unit].max_loc_offsets = 0;
- debug_information [unit].num_loc_offsets = 0;
- debug_information [unit].range_lists = NULL;
- debug_information [unit].max_range_lists= 0;
- debug_information [unit].num_range_lists = 0;
- }
+ dwarf_vma base;
+ dwarf_vma offset;
- if (!do_loc && dwarf_start_die == 0)
- {
- printf (_(" Compilation Unit @ offset 0x%s:\n"),
- dwarf_vmatoa ("x", cu_offset));
- printf (_(" Length: 0x%s (%s)\n"),
- dwarf_vmatoa ("x", compunit.cu_length),
- offset_size == 8 ? "64-bit" : "32-bit");
- printf (_(" Version: %d\n"), compunit.cu_version);
- printf (_(" Abbrev Offset: 0x%s\n"),
- dwarf_vmatoa ("x", compunit.cu_abbrev_offset));
- printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
- if (do_types)
- {
- char buf[64];
+ if (debug_info_p == NULL)
+ base = 0;
+ else if (debug_info_p->addr_base == DEBUG_INFO_UNAVAILABLE)
+ base = 0;
+ else
+ base = debug_info_p->addr_base;
- printf (_(" Signature: 0x%s\n"),
- dwarf_vmatoa64 (signature_high, signature_low,
- buf, sizeof (buf)));
- printf (_(" Type Offset: 0x%s\n"),
- dwarf_vmatoa ("x", type_offset));
- }
- if (this_set != NULL)
- {
- dwarf_vma *offsets = this_set->section_offsets;
- size_t *sizes = this_set->section_sizes;
+ offset = base + uvalue * pointer_size;
- printf (_(" Section contributions:\n"));
- printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"),
- dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]),
- dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV]));
- printf (_(" .debug_line.dwo: 0x%s 0x%s\n"),
- dwarf_vmatoa ("x", offsets [DW_SECT_LINE]),
- dwarf_vmatoa ("x", sizes [DW_SECT_LINE]));
- printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"),
- dwarf_vmatoa ("x", offsets [DW_SECT_LOC]),
- dwarf_vmatoa ("x", sizes [DW_SECT_LOC]));
- printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"),
- dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]),
- dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS]));
- }
+ if (do_wide)
+ /* We have already displayed the form name. */
+ printf (_("%c(index: 0x%s): %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indexed_value (offset, pointer_size));
+ else
+ printf (_("%c(addr_index: 0x%s): %s"), delimiter,
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indexed_value (offset, pointer_size));
}
+ break;
- sec_off = cu_offset + initial_length_size;
- if (sec_off + compunit.cu_length < sec_off
- || sec_off + compunit.cu_length > section->size)
- {
- warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
- section->name,
- (unsigned long) cu_offset,
- dwarf_vmatoa ("x", compunit.cu_length));
- num_units = unit;
- break;
- }
-
- tags = hdrptr;
- start += compunit.cu_length + initial_length_size;
-
- if (compunit.cu_version < 2 || compunit.cu_version > 5)
- {
- warn (_("CU at offset %s contains corrupt or "
- "unsupported version number: %d.\n"),
- dwarf_vmatoa ("x", cu_offset), compunit.cu_version);
- continue;
- }
-
- if (compunit.cu_unit_type != DW_UT_compile
- && compunit.cu_unit_type != DW_UT_type)
- {
- warn (_("CU at offset %s contains corrupt or "
- "unsupported unit type: %d.\n"),
- dwarf_vmatoa ("x", cu_offset), compunit.cu_unit_type);
- continue;
- }
-
- free_abbrevs ();
-
- /* Process the abbrevs used by this compilation unit. */
- if (compunit.cu_abbrev_offset >= abbrev_size)
- warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"),
- (unsigned long) compunit.cu_abbrev_offset,
- (unsigned long) abbrev_size);
- /* PR 17531: file:4bcd9ce9. */
- else if ((abbrev_base + abbrev_size)
- > debug_displays [abbrev_sec].section.size)
- warn (_("Debug info is corrupted, abbrev size (%lx) is larger than abbrev section size (%lx)\n"),
- (unsigned long) abbrev_base + abbrev_size,
- (unsigned long) debug_displays [abbrev_sec].section.size);
- else
- process_abbrev_section
- (((unsigned char *) debug_displays [abbrev_sec].section.start
- + abbrev_base + compunit.cu_abbrev_offset),
- ((unsigned char *) debug_displays [abbrev_sec].section.start
- + abbrev_base + abbrev_size));
+ case DW_FORM_strp_sup:
+ if (!do_loc)
+ printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x", uvalue + cu_offset));
+ break;
+
+ default:
+ warn (_("Unrecognized form: 0x%lx\n"), form);
+ break;
+ }
- level = 0;
- last_level = level;
- saved_level = -1;
- while (tags < start)
+ if ((do_loc || do_debug_loc || do_debug_ranges)
+ && num_debug_info_entries == 0
+ && debug_info_p != NULL)
+ {
+ switch (attribute)
{
- unsigned int bytes_read;
- unsigned long abbrev_number;
- unsigned long die_offset;
- abbrev_entry *entry;
- abbrev_attr *attr;
- int do_printing = 1;
-
- die_offset = tags - section_begin;
-
- abbrev_number = read_uleb128 (tags, & bytes_read, start);
- tags += bytes_read;
-
- /* A null DIE marks the end of a list of siblings or it may also be
- a section padding. */
- if (abbrev_number == 0)
+ case DW_AT_frame_base:
+ have_frame_base = 1;
+ /* Fall through. */
+ case DW_AT_location:
+ case DW_AT_GNU_locviews:
+ case DW_AT_string_length:
+ case DW_AT_return_addr:
+ case DW_AT_data_member_location:
+ case DW_AT_vtable_elem_location:
+ case DW_AT_segment:
+ case DW_AT_static_link:
+ case DW_AT_use_location:
+ case DW_AT_call_value:
+ case DW_AT_GNU_call_site_value:
+ case DW_AT_call_data_value:
+ case DW_AT_GNU_call_site_data_value:
+ case DW_AT_call_target:
+ case DW_AT_GNU_call_site_target:
+ case DW_AT_call_target_clobbered:
+ case DW_AT_GNU_call_site_target_clobbered:
+ if ((dwarf_version < 4
+ && (form == DW_FORM_data4 || form == DW_FORM_data8))
+ || form == DW_FORM_sec_offset)
{
- /* Check if it can be a section padding for the last CU. */
- if (level == 0 && start == end)
- {
- unsigned char *chk;
+ /* Process location list. */
+ unsigned int lmax = debug_info_p->max_loc_offsets;
+ unsigned int num = debug_info_p->num_loc_offsets;
- for (chk = tags; chk < start; chk++)
- if (*chk != 0)
- break;
- if (chk == start)
- break;
+ if (lmax == 0 || num >= lmax)
+ {
+ lmax += 1024;
+ debug_info_p->loc_offsets = (dwarf_vma *)
+ xcrealloc (debug_info_p->loc_offsets,
+ lmax, sizeof (*debug_info_p->loc_offsets));
+ debug_info_p->loc_views = (dwarf_vma *)
+ xcrealloc (debug_info_p->loc_views,
+ lmax, sizeof (*debug_info_p->loc_views));
+ debug_info_p->have_frame_base = (int *)
+ xcrealloc (debug_info_p->have_frame_base,
+ lmax, sizeof (*debug_info_p->have_frame_base));
+ debug_info_p->max_loc_offsets = lmax;
}
-
- if (!do_loc && die_offset >= dwarf_start_die
- && (dwarf_cutoff_level == -1
- || level < dwarf_cutoff_level))
- printf (_(" <%d><%lx>: Abbrev Number: 0\n"),
- level, die_offset);
-
- --level;
- if (level < 0)
+ if (this_set != NULL)
+ uvalue += this_set->section_offsets [DW_SECT_LOC];
+ debug_info_p->have_frame_base [num] = have_frame_base;
+ if (attribute != DW_AT_GNU_locviews)
{
- static unsigned num_bogus_warns = 0;
-
- if (num_bogus_warns < 3)
+ /* Corrupt DWARF info can produce more offsets than views.
+ See PR 23062 for an example. */
+ if (debug_info_p->num_loc_offsets
+ > debug_info_p->num_loc_views)
+ warn (_("More location offset attributes than DW_AT_GNU_locview attributes\n"));
+ else
{
- warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"),
- die_offset, section->name);
- num_bogus_warns ++;
- if (num_bogus_warns == 3)
- warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
+ debug_info_p->loc_offsets [num] = uvalue;
+ debug_info_p->num_loc_offsets++;
}
}
- if (dwarf_start_die != 0 && level < saved_level)
- return 1;
- continue;
- }
-
- if (!do_loc)
- {
- if (dwarf_start_die != 0 && die_offset < dwarf_start_die)
- do_printing = 0;
else
{
- if (dwarf_start_die != 0 && die_offset == dwarf_start_die)
- saved_level = level;
- do_printing = (dwarf_cutoff_level == -1
- || level < dwarf_cutoff_level);
- if (do_printing)
- printf (_(" <%d><%lx>: Abbrev Number: %lu"),
- level, die_offset, abbrev_number);
- else if (dwarf_cutoff_level == -1
- || last_level < dwarf_cutoff_level)
- printf (_(" <%d><%lx>: ...\n"), level, die_offset);
- last_level = level;
+ assert (debug_info_p->num_loc_views <= num);
+ num = debug_info_p->num_loc_views;
+ if (num > debug_info_p->num_loc_offsets)
+ warn (_("More DW_AT_GNU_locview attributes than location offset attributes\n"));
+ else
+ {
+ debug_info_p->loc_views [num] = uvalue;
+ debug_info_p->num_loc_views++;
+ }
}
}
+ break;
- /* Scan through the abbreviation list until we reach the
- correct entry. */
- for (entry = first_abbrev;
- entry && entry->entry != abbrev_number;
- entry = entry->next)
- continue;
+ case DW_AT_low_pc:
+ if (need_base_address)
+ debug_info_p->base_address = uvalue;
+ break;
- if (entry == NULL)
+ case DW_AT_GNU_addr_base:
+ case DW_AT_addr_base:
+ debug_info_p->addr_base = uvalue;
+ break;
+
+ case DW_AT_GNU_ranges_base:
+ debug_info_p->ranges_base = uvalue;
+ break;
+
+ case DW_AT_ranges:
+ if ((dwarf_version < 4
+ && (form == DW_FORM_data4 || form == DW_FORM_data8))
+ || form == DW_FORM_sec_offset)
{
- if (!do_loc && do_printing)
+ /* Process range list. */
+ unsigned int lmax = debug_info_p->max_range_lists;
+ unsigned int num = debug_info_p->num_range_lists;
+
+ if (lmax == 0 || num >= lmax)
{
- printf ("\n");
- fflush (stdout);
+ lmax += 1024;
+ debug_info_p->range_lists = (dwarf_vma *)
+ xcrealloc (debug_info_p->range_lists,
+ lmax, sizeof (*debug_info_p->range_lists));
+ debug_info_p->max_range_lists = lmax;
}
- warn (_("DIE at offset 0x%lx refers to abbreviation number %lu which does not exist\n"),
- die_offset, abbrev_number);
- return 0;
+ debug_info_p->range_lists [num] = uvalue;
+ debug_info_p->num_range_lists++;
}
+ break;
- if (!do_loc && do_printing)
- printf (" (%s)\n", get_TAG_name (entry->tag));
+ case DW_AT_GNU_dwo_name:
+ case DW_AT_dwo_name:
+ if (need_dwo_info)
+ switch (form)
+ {
+ case DW_FORM_strp:
+ add_dwo_name ((const char *) fetch_indirect_string (uvalue), cu_offset);
+ break;
+ case DW_FORM_GNU_strp_alt:
+ add_dwo_name ((const char *) fetch_alt_indirect_string (uvalue), cu_offset);
+ break;
+ case DW_FORM_GNU_str_index:
+ case DW_FORM_strx:
+ case DW_FORM_strx1:
+ case DW_FORM_strx2:
+ case DW_FORM_strx3:
+ case DW_FORM_strx4:
+ add_dwo_name (fetch_indexed_string (uvalue, this_set, offset_size, false), cu_offset);
+ break;
+ case DW_FORM_string:
+ add_dwo_name ((const char *) orig_data, cu_offset);
+ break;
+ default:
+ warn (_("Unsupported form (%s) for attribute %s\n"),
+ get_FORM_name (form), get_AT_name (attribute));
+ break;
+ }
+ break;
- switch (entry->tag)
- {
- default:
- need_base_address = 0;
- break;
- case DW_TAG_compile_unit:
- need_base_address = 1;
- break;
- case DW_TAG_entry_point:
- case DW_TAG_subprogram:
- need_base_address = 0;
- /* Assuming that there is no DW_AT_frame_base. */
- have_frame_base = 0;
- break;
- }
+ case DW_AT_comp_dir:
+ /* FIXME: Also extract a build-id in a CU/TU. */
+ if (need_dwo_info)
+ switch (form)
+ {
+ case DW_FORM_strp:
+ add_dwo_dir ((const char *) fetch_indirect_string (uvalue), cu_offset);
+ break;
+ case DW_FORM_GNU_strp_alt:
+ add_dwo_dir (fetch_alt_indirect_string (uvalue), cu_offset);
+ break;
+ case DW_FORM_line_strp:
+ add_dwo_dir ((const char *) fetch_indirect_line_string (uvalue), cu_offset);
+ break;
+ case DW_FORM_GNU_str_index:
+ case DW_FORM_strx:
+ case DW_FORM_strx1:
+ case DW_FORM_strx2:
+ case DW_FORM_strx3:
+ case DW_FORM_strx4:
+ add_dwo_dir (fetch_indexed_string (uvalue, this_set, offset_size, false), cu_offset);
+ break;
+ case DW_FORM_string:
+ add_dwo_dir ((const char *) orig_data, cu_offset);
+ break;
+ default:
+ warn (_("Unsupported form (%s) for attribute %s\n"),
+ get_FORM_name (form), get_AT_name (attribute));
+ break;
+ }
+ break;
- debug_info *debug_info_p =
- (debug_information && unit < alloc_num_debug_info_entries)
- ? debug_information + unit : NULL;
+ case DW_AT_GNU_dwo_id:
+ if (need_dwo_info)
+ switch (form)
+ {
+ case DW_FORM_data8:
+ /* FIXME: Record the length of the ID as well ? */
+ add_dwo_id ((const char *) (data - 8), cu_offset);
+ break;
+ default:
+ warn (_("Unsupported form (%s) for attribute %s\n"),
+ get_FORM_name (form), get_AT_name (attribute));
+ break;
+ }
+ break;
- assert (!debug_info_p
- || (debug_info_p->num_loc_offsets
- == debug_info_p->num_loc_views));
+ default:
+ break;
+ }
+ }
- for (attr = entry->first_attr;
- attr && attr->attribute;
- attr = attr->next)
- {
- if (! do_loc && do_printing)
- /* Show the offset from where the tag was extracted. */
- printf (" <%lx>", (unsigned long)(tags - section_begin));
+ if (do_loc || attribute == 0)
+ return data;
+
+ /* For some attributes we can display further information. */
+ switch (attribute)
+ {
+ case DW_AT_type:
+ if (level >= 0 && level < MAX_CU_NESTING
+ && uvalue < (size_t) (end - start))
+ {
+ bool is_signed = false;
+ abbrev_entry *type_abbrev;
+ unsigned char *type_data;
+ unsigned long type_cu_offset;
+
+ type_abbrev = get_type_abbrev_from_form (form, uvalue, cu_offset,
+ section, NULL, & type_data, & type_cu_offset);
+ if (type_abbrev != NULL)
+ {
+ get_type_signedness (type_abbrev, section, type_data, end, type_cu_offset,
+ pointer_size, offset_size, dwarf_version,
+ & is_signed, 0);
+ }
+ level_type_signed[level] = is_signed;
+ }
+ break;
+
+ case DW_AT_inline:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_INL_not_inlined:
+ printf (_("(not inlined)"));
+ break;
+ case DW_INL_inlined:
+ printf (_("(inlined)"));
+ break;
+ case DW_INL_declared_not_inlined:
+ printf (_("(declared as inline but ignored)"));
+ break;
+ case DW_INL_declared_inlined:
+ printf (_("(declared as inline and inlined)"));
+ break;
+ default:
+ printf (_(" (Unknown inline attribute value: %s)"),
+ dwarf_vmatoa ("x", uvalue));
+ break;
+ }
+ break;
+
+ case DW_AT_language:
+ printf ("\t");
+ switch (uvalue)
+ {
+ /* Ordered by the numeric value of these constants. */
+ case DW_LANG_C89: printf ("(ANSI C)"); break;
+ case DW_LANG_C: printf ("(non-ANSI C)"); break;
+ case DW_LANG_Ada83: printf ("(Ada)"); break;
+ case DW_LANG_C_plus_plus: printf ("(C++)"); break;
+ case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
+ case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
+ case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
+ case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
+ case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
+ case DW_LANG_Modula2: printf ("(Modula 2)"); break;
+ /* DWARF 2.1 values. */
+ case DW_LANG_Java: printf ("(Java)"); break;
+ case DW_LANG_C99: printf ("(ANSI C99)"); break;
+ case DW_LANG_Ada95: printf ("(ADA 95)"); break;
+ case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
+ /* DWARF 3 values. */
+ case DW_LANG_PLI: printf ("(PLI)"); break;
+ case DW_LANG_ObjC: printf ("(Objective C)"); break;
+ case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break;
+ case DW_LANG_UPC: printf ("(Unified Parallel C)"); break;
+ case DW_LANG_D: printf ("(D)"); break;
+ /* DWARF 4 values. */
+ case DW_LANG_Python: printf ("(Python)"); break;
+ /* DWARF 5 values. */
+ case DW_LANG_OpenCL: printf ("(OpenCL)"); break;
+ case DW_LANG_Go: printf ("(Go)"); break;
+ case DW_LANG_Modula3: printf ("(Modula 3)"); break;
+ case DW_LANG_Haskell: printf ("(Haskell)"); break;
+ case DW_LANG_C_plus_plus_03: printf ("(C++03)"); break;
+ case DW_LANG_C_plus_plus_11: printf ("(C++11)"); break;
+ case DW_LANG_OCaml: printf ("(OCaml)"); break;
+ case DW_LANG_Rust: printf ("(Rust)"); break;
+ case DW_LANG_C11: printf ("(C11)"); break;
+ case DW_LANG_Swift: printf ("(Swift)"); break;
+ case DW_LANG_Julia: printf ("(Julia)"); break;
+ case DW_LANG_Dylan: printf ("(Dylan)"); break;
+ case DW_LANG_C_plus_plus_14: printf ("(C++14)"); break;
+ case DW_LANG_Fortran03: printf ("(Fortran 03)"); break;
+ case DW_LANG_Fortran08: printf ("(Fortran 08)"); break;
+ case DW_LANG_RenderScript: printf ("(RenderScript)"); break;
+ /* MIPS extension. */
+ case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
+ /* UPC extension. */
+ case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
+ default:
+ if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
+ printf (_("(implementation defined: %s)"),
+ dwarf_vmatoa ("x", uvalue));
+ else
+ printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue));
+ break;
+ }
+ break;
+
+ case DW_AT_encoding:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_ATE_void: printf ("(void)"); break;
+ case DW_ATE_address: printf ("(machine address)"); break;
+ case DW_ATE_boolean: printf ("(boolean)"); break;
+ case DW_ATE_complex_float: printf ("(complex float)"); break;
+ case DW_ATE_float: printf ("(float)"); break;
+ case DW_ATE_signed: printf ("(signed)"); break;
+ case DW_ATE_signed_char: printf ("(signed char)"); break;
+ case DW_ATE_unsigned: printf ("(unsigned)"); break;
+ case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
+ /* DWARF 2.1 values: */
+ case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
+ case DW_ATE_decimal_float: printf ("(decimal float)"); break;
+ /* DWARF 3 values: */
+ case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break;
+ case DW_ATE_numeric_string: printf ("(numeric_string)"); break;
+ case DW_ATE_edited: printf ("(edited)"); break;
+ case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
+ case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
+ /* DWARF 4 values: */
+ case DW_ATE_UTF: printf ("(unicode string)"); break;
+ /* DWARF 5 values: */
+ case DW_ATE_UCS: printf ("(UCS)"); break;
+ case DW_ATE_ASCII: printf ("(ASCII)"); break;
+
+ /* HP extensions: */
+ case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
+ case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
+ case DW_ATE_HP_float128: printf ("(HP_float128)"); break;
+ case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break;
+ case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
+ case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
+ case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
+
+ default:
+ if (uvalue >= DW_ATE_lo_user
+ && uvalue <= DW_ATE_hi_user)
+ printf (_("(user defined type)"));
+ else
+ printf (_("(unknown type)"));
+ break;
+ }
+ break;
+
+ case DW_AT_accessibility:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_ACCESS_public: printf ("(public)"); break;
+ case DW_ACCESS_protected: printf ("(protected)"); break;
+ case DW_ACCESS_private: printf ("(private)"); break;
+ default:
+ printf (_("(unknown accessibility)"));
+ break;
+ }
+ break;
+
+ case DW_AT_visibility:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_VIS_local: printf ("(local)"); break;
+ case DW_VIS_exported: printf ("(exported)"); break;
+ case DW_VIS_qualified: printf ("(qualified)"); break;
+ default: printf (_("(unknown visibility)")); break;
+ }
+ break;
+
+ case DW_AT_endianity:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_END_default: printf ("(default)"); break;
+ case DW_END_big: printf ("(big)"); break;
+ case DW_END_little: printf ("(little)"); break;
+ default:
+ if (uvalue >= DW_END_lo_user && uvalue <= DW_END_hi_user)
+ printf (_("(user specified)"));
+ else
+ printf (_("(unknown endianity)"));
+ break;
+ }
+ break;
+
+ case DW_AT_virtuality:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_VIRTUALITY_none: printf ("(none)"); break;
+ case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
+ case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
+ default: printf (_("(unknown virtuality)")); break;
+ }
+ break;
+
+ case DW_AT_identifier_case:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
+ case DW_ID_up_case: printf ("(up_case)"); break;
+ case DW_ID_down_case: printf ("(down_case)"); break;
+ case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
+ default: printf (_("(unknown case)")); break;
+ }
+ break;
+
+ case DW_AT_calling_convention:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_CC_normal: printf ("(normal)"); break;
+ case DW_CC_program: printf ("(program)"); break;
+ case DW_CC_nocall: printf ("(nocall)"); break;
+ case DW_CC_pass_by_reference: printf ("(pass by ref)"); break;
+ case DW_CC_pass_by_value: printf ("(pass by value)"); break;
+ case DW_CC_GNU_renesas_sh: printf ("(Rensas SH)"); break;
+ case DW_CC_GNU_borland_fastcall_i386: printf ("(Borland fastcall i386)"); break;
+ default:
+ if (uvalue >= DW_CC_lo_user
+ && uvalue <= DW_CC_hi_user)
+ printf (_("(user defined)"));
+ else
+ printf (_("(unknown convention)"));
+ }
+ break;
+
+ case DW_AT_ordering:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case 255:
+ case -1: printf (_("(undefined)")); break;
+ case 0: printf ("(row major)"); break;
+ case 1: printf ("(column major)"); break;
+ }
+ break;
+
+ case DW_AT_decimal_sign:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_DS_unsigned: printf (_("(unsigned)")); break;
+ case DW_DS_leading_overpunch: printf (_("(leading overpunch)")); break;
+ case DW_DS_trailing_overpunch: printf (_("(trailing overpunch)")); break;
+ case DW_DS_leading_separate: printf (_("(leading separate)")); break;
+ case DW_DS_trailing_separate: printf (_("(trailing separate)")); break;
+ default: printf (_("(unrecognised)")); break;
+ }
+ break;
+
+ case DW_AT_defaulted:
+ printf ("\t");
+ switch (uvalue)
+ {
+ case DW_DEFAULTED_no: printf (_("(no)")); break;
+ case DW_DEFAULTED_in_class: printf (_("(in class)")); break;
+ case DW_DEFAULTED_out_of_class: printf (_("(out of class)")); break;
+ default: printf (_("(unrecognised)")); break;
+ }
+ break;
+
+ case DW_AT_discr_list:
+ printf ("\t");
+ display_discr_list (form, uvalue, data, end, level);
+ break;
+
+ case DW_AT_frame_base:
+ have_frame_base = 1;
+ /* Fall through. */
+ case DW_AT_location:
+ case DW_AT_string_length:
+ case DW_AT_return_addr:
+ case DW_AT_data_member_location:
+ case DW_AT_vtable_elem_location:
+ case DW_AT_segment:
+ case DW_AT_static_link:
+ case DW_AT_use_location:
+ case DW_AT_call_value:
+ case DW_AT_GNU_call_site_value:
+ case DW_AT_call_data_value:
+ case DW_AT_GNU_call_site_data_value:
+ case DW_AT_call_target:
+ case DW_AT_GNU_call_site_target:
+ case DW_AT_call_target_clobbered:
+ case DW_AT_GNU_call_site_target_clobbered:
+ if ((dwarf_version < 4
+ && (form == DW_FORM_data4 || form == DW_FORM_data8))
+ || form == DW_FORM_sec_offset)
+ printf (_(" (location list)"));
+ /* Fall through. */
+ case DW_AT_allocated:
+ case DW_AT_associated:
+ case DW_AT_data_location:
+ case DW_AT_stride:
+ case DW_AT_upper_bound:
+ case DW_AT_lower_bound:
+ if (block_start)
+ {
+ int need_frame_base;
+
+ printf ("\t(");
+ need_frame_base = decode_location_expression (block_start,
+ pointer_size,
+ offset_size,
+ dwarf_version,
+ uvalue,
+ cu_offset, section);
+ printf (")");
+ if (need_frame_base && !have_frame_base)
+ printf (_(" [without DW_AT_frame_base]"));
+ }
+ break;
+
+ case DW_AT_data_bit_offset:
+ case DW_AT_byte_size:
+ case DW_AT_bit_size:
+ case DW_AT_string_length_byte_size:
+ case DW_AT_string_length_bit_size:
+ case DW_AT_bit_stride:
+ if (form == DW_FORM_exprloc)
+ {
+ printf ("\t(");
+ (void) decode_location_expression (block_start, pointer_size,
+ offset_size, dwarf_version,
+ uvalue, cu_offset, section);
+ printf (")");
+ }
+ break;
+
+ case DW_AT_import:
+ {
+ unsigned long abbrev_number;
+ abbrev_entry *entry;
+
+ entry = get_type_abbrev_from_form (form, uvalue, cu_offset,
+ section, & abbrev_number, NULL, NULL);
+ if (entry == NULL)
+ {
+ if (form != DW_FORM_GNU_ref_alt)
+ warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset 0x%lx is too big.\n"),
+ dwarf_vmatoa ("x", uvalue),
+ (unsigned long) (orig_data - section->start));
+ }
+ else
+ {
+ printf (_("\t[Abbrev Number: %ld"), abbrev_number);
+ printf (" (%s)", get_TAG_name (entry->tag));
+ printf ("]");
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return data;
+}
+
+static unsigned char *
+read_and_display_attr (unsigned long attribute,
+ unsigned long form,
+ dwarf_signed_vma implicit_const,
+ unsigned char * start,
+ unsigned char * data,
+ unsigned char * end,
+ dwarf_vma cu_offset,
+ dwarf_vma pointer_size,
+ dwarf_vma offset_size,
+ int dwarf_version,
+ debug_info * debug_info_p,
+ int do_loc,
+ struct dwarf_section * section,
+ struct cu_tu_set * this_set,
+ int level)
+{
+ if (!do_loc)
+ printf (" %-18s:", get_AT_name (attribute));
+ data = read_and_display_attr_value (attribute, form, implicit_const,
+ start, data, end,
+ cu_offset, pointer_size, offset_size,
+ dwarf_version, debug_info_p,
+ do_loc, section, this_set, ' ', level);
+ if (!do_loc)
+ printf ("\n");
+ return data;
+}
+
+/* Like load_debug_section, but if the ordinary call fails, and we are
+ following debug links, then attempt to load the requested section
+ from one of the separate debug info files. */
+
+static bool
+load_debug_section_with_follow (enum dwarf_section_display_enum sec_enum,
+ void * handle)
+{
+ if (load_debug_section (sec_enum, handle))
+ {
+ if (debug_displays[sec_enum].section.filename == NULL)
+ {
+ /* See if we can associate a filename with this section. */
+ separate_info * i;
+
+ for (i = first_separate_info; i != NULL; i = i->next)
+ if (i->handle == handle)
+ {
+ debug_displays[sec_enum].section.filename = i->filename;
+ break;
+ }
+ }
+
+ return true;
+ }
+
+ if (do_follow_links)
+ {
+ separate_info * i;
+
+ for (i = first_separate_info; i != NULL; i = i->next)
+ {
+ if (load_debug_section (sec_enum, i->handle))
+ {
+ debug_displays[sec_enum].section.filename = i->filename;
+
+ /* FIXME: We should check to see if any of the remaining debug info
+ files also contain this section, and, umm, do something about it. */
+ return true;
+ }
+ }
+ }
+
+ return false;
+}
+
+static void
+introduce (struct dwarf_section * section, bool raw)
+{
+ if (raw)
+ {
+ if (do_follow_links && section->filename)
+ printf (_("Raw dump of debug contents of section %s (loaded from %s):\n\n"),
+ section->name, section->filename);
+ else
+ printf (_("Raw dump of debug contents of section %s:\n\n"), section->name);
+ }
+ else
+ {
+ if (do_follow_links && section->filename)
+ printf (_("Contents of the %s section (loaded from %s):\n\n"),
+ section->name, section->filename);
+ else
+ printf (_("Contents of the %s section:\n\n"), section->name);
+ }
+}
+
+/* Process the contents of a .debug_info section.
+ If do_loc is TRUE then we are scanning for location lists and dwo tags
+ and we do not want to display anything to the user.
+ If do_types is TRUE, we are processing a .debug_types section instead of
+ a .debug_info section.
+ The information displayed is restricted by the values in DWARF_START_DIE
+ and DWARF_CUTOFF_LEVEL.
+ Returns TRUE upon success. Otherwise an error or warning message is
+ printed and FALSE is returned. */
+
+static bool
+process_debug_info (struct dwarf_section * section,
+ void *file,
+ enum dwarf_section_display_enum abbrev_sec,
+ bool do_loc,
+ bool do_types)
+{
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
+ unsigned char *section_begin;
+ unsigned int unit;
+ unsigned int num_units = 0;
+
+ if ((do_loc || do_debug_loc || do_debug_ranges)
+ && num_debug_info_entries == 0
+ && ! do_types)
+ {
+ dwarf_vma length;
+
+ /* First scan the section to get the number of comp units. */
+ for (section_begin = start, num_units = 0; section_begin < end;
+ num_units ++)
+ {
+ /* Read the first 4 bytes. For a 32-bit DWARF section, this
+ will be the length. For a 64-bit DWARF section, it'll be
+ the escape code 0xffffffff followed by an 8 byte length. */
+ SAFE_BYTE_GET (length, section_begin, 4, end);
+
+ if (length == 0xffffffff)
+ {
+ SAFE_BYTE_GET (length, section_begin + 4, 8, end);
+ section_begin += length + 12;
+ }
+ else if (length >= 0xfffffff0 && length < 0xffffffff)
+ {
+ warn (_("Reserved length value (0x%s) found in section %s\n"),
+ dwarf_vmatoa ("x", length), section->name);
+ return false;
+ }
+ else
+ section_begin += length + 4;
+
+ /* Negative values are illegal, they may even cause infinite
+ looping. This can happen if we can't accurately apply
+ relocations to an object file, or if the file is corrupt. */
+ if ((signed long) length <= 0 || section_begin < start)
+ {
+ warn (_("Corrupt unit length (0x%s) found in section %s\n"),
+ dwarf_vmatoa ("x", length), section->name);
+ return false;
+ }
+ }
+
+ if (num_units == 0)
+ {
+ error (_("No comp units in %s section ?\n"), section->name);
+ return false;
+ }
+
+ /* Then allocate an array to hold the information. */
+ debug_information = (debug_info *) cmalloc (num_units,
+ sizeof (* debug_information));
+ if (debug_information == NULL)
+ {
+ error (_("Not enough memory for a debug info array of %u entries\n"),
+ num_units);
+ alloc_num_debug_info_entries = num_debug_info_entries = 0;
+ return false;
+ }
+
+ /* PR 17531: file: 92ca3797.
+ We cannot rely upon the debug_information array being initialised
+ before it is used. A corrupt file could easily contain references
+ to a unit for which information has not been made available. So
+ we ensure that the array is zeroed here. */
+ memset (debug_information, 0, num_units * sizeof (*debug_information));
+
+ alloc_num_debug_info_entries = num_units;
+ }
+
+ if (!do_loc)
+ {
+ load_debug_section_with_follow (str, file);
+ load_debug_section_with_follow (line_str, file);
+ load_debug_section_with_follow (str_dwo, file);
+ load_debug_section_with_follow (str_index, file);
+ load_debug_section_with_follow (str_index_dwo, file);
+ load_debug_section_with_follow (debug_addr, file);
+ }
+
+ load_debug_section_with_follow (abbrev_sec, file);
+ if (debug_displays [abbrev_sec].section.start == NULL)
+ {
+ warn (_("Unable to locate %s section!\n"),
+ debug_displays [abbrev_sec].section.uncompressed_name);
+ return false;
+ }
+
+ if (!do_loc && dwarf_start_die == 0)
+ introduce (section, false);
+
+ free_all_abbrevs ();
+ free (cu_abbrev_map);
+ cu_abbrev_map = NULL;
+ next_free_abbrev_map_entry = 0;
+
+ /* In order to be able to resolve DW_FORM_ref_attr forms we need
+ to load *all* of the abbrevs for all CUs in this .debug_info
+ section. This does effectively mean that we (partially) read
+ every CU header twice. */
+ for (section_begin = start; start < end;)
+ {
+ DWARF2_Internal_CompUnit compunit;
+ unsigned char * hdrptr;
+ dwarf_vma abbrev_base;
+ size_t abbrev_size;
+ dwarf_vma cu_offset;
+ unsigned int offset_size;
+ unsigned int initial_length_size;
+ struct cu_tu_set * this_set;
+ abbrev_list * list;
+
+ hdrptr = start;
+
+ SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end);
+
+ if (compunit.cu_length == 0xffffffff)
+ {
+ SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end);
+ offset_size = 8;
+ initial_length_size = 12;
+ }
+ else
+ {
+ offset_size = 4;
+ initial_length_size = 4;
+ }
+
+ SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end);
+
+ cu_offset = start - section_begin;
+
+ this_set = find_cu_tu_set_v2 (cu_offset, do_types);
+
+ if (compunit.cu_version < 5)
+ {
+ compunit.cu_unit_type = DW_UT_compile;
+ /* Initialize it due to a false compiler warning. */
+ compunit.cu_pointer_size = -1;
+ }
+ else
+ {
+ SAFE_BYTE_GET_AND_INC (compunit.cu_unit_type, hdrptr, 1, end);
+ do_types = (compunit.cu_unit_type == DW_UT_type);
+
+ SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
+ }
+
+ SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end);
+
+ if (compunit.cu_unit_type == DW_UT_split_compile
+ || compunit.cu_unit_type == DW_UT_skeleton)
+ {
+ uint64_t dwo_id;
+ SAFE_BYTE_GET_AND_INC (dwo_id, hdrptr, 8, end);
+ }
+
+ if (this_set == NULL)
+ {
+ abbrev_base = 0;
+ abbrev_size = debug_displays [abbrev_sec].section.size;
+ }
+ else
+ {
+ abbrev_base = this_set->section_offsets [DW_SECT_ABBREV];
+ abbrev_size = this_set->section_sizes [DW_SECT_ABBREV];
+ }
+
+ list = find_abbrev_list_by_abbrev_offset (abbrev_base,
+ compunit.cu_abbrev_offset);
+ if (list == NULL)
+ {
+ unsigned char * next;
+
+ list = new_abbrev_list (abbrev_base,
+ compunit.cu_abbrev_offset);
+ next = process_abbrev_set
+ (((unsigned char *) debug_displays [abbrev_sec].section.start
+ + abbrev_base + compunit.cu_abbrev_offset),
+ ((unsigned char *) debug_displays [abbrev_sec].section.start
+ + abbrev_base + abbrev_size),
+ list);
+ list->start_of_next_abbrevs = next;
+ }
+
+ start = section_begin + cu_offset + compunit.cu_length
+ + initial_length_size;
+ record_abbrev_list_for_cu (cu_offset, start - section_begin, list);
+ }
+
+ for (start = section_begin, unit = 0; start < end; unit++)
+ {
+ DWARF2_Internal_CompUnit compunit;
+ unsigned char *hdrptr;
+ unsigned char *tags;
+ int level, last_level, saved_level;
+ dwarf_vma cu_offset;
+ unsigned long sec_off;
+ unsigned int offset_size;
+ unsigned int initial_length_size;
+ dwarf_vma signature_high = 0;
+ dwarf_vma signature_low = 0;
+ dwarf_vma type_offset = 0;
+ struct cu_tu_set *this_set;
+ dwarf_vma abbrev_base;
+ size_t abbrev_size;
+ abbrev_list * list = NULL;
+
+ hdrptr = start;
+
+ SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end);
+
+ if (compunit.cu_length == 0xffffffff)
+ {
+ SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end);
+ offset_size = 8;
+ initial_length_size = 12;
+ }
+ else
+ {
+ offset_size = 4;
+ initial_length_size = 4;
+ }
+
+ SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end);
+
+ cu_offset = start - section_begin;
+
+ this_set = find_cu_tu_set_v2 (cu_offset, do_types);
+
+ if (compunit.cu_version < 5)
+ {
+ compunit.cu_unit_type = DW_UT_compile;
+ /* Initialize it due to a false compiler warning. */
+ compunit.cu_pointer_size = -1;
+ }
+ else
+ {
+ SAFE_BYTE_GET_AND_INC (compunit.cu_unit_type, hdrptr, 1, end);
+ do_types = (compunit.cu_unit_type == DW_UT_type);
+
+ SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
+ }
+
+ SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end);
+
+ if (this_set == NULL)
+ {
+ abbrev_base = 0;
+ abbrev_size = debug_displays [abbrev_sec].section.size;
+ }
+ else
+ {
+ abbrev_base = this_set->section_offsets [DW_SECT_ABBREV];
+ abbrev_size = this_set->section_sizes [DW_SECT_ABBREV];
+ }
+
+ if (compunit.cu_version < 5)
+ SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
+
+ bool do_dwo_id = false;
+ uint64_t dwo_id = 0;
+ if (compunit.cu_unit_type == DW_UT_split_compile
+ || compunit.cu_unit_type == DW_UT_skeleton)
+ {
+ SAFE_BYTE_GET_AND_INC (dwo_id, hdrptr, 8, end);
+ do_dwo_id = true;
+ }
+
+ /* PR 17512: file: 001-108546-0.001:0.1. */
+ if (compunit.cu_pointer_size < 2 || compunit.cu_pointer_size > 8)
+ {
+ warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"),
+ compunit.cu_pointer_size, offset_size);
+ compunit.cu_pointer_size = offset_size;
+ }
+
+ if (do_types)
+ {
+ SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end);
+ hdrptr += 8;
+ SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end);
+ }
+
+ if (dwarf_start_die > (cu_offset + compunit.cu_length
+ + initial_length_size))
+ {
+ start = section_begin + cu_offset + compunit.cu_length
+ + initial_length_size;
+ continue;
+ }
+
+ if ((do_loc || do_debug_loc || do_debug_ranges)
+ && num_debug_info_entries == 0
+ && alloc_num_debug_info_entries > unit
+ && ! do_types)
+ {
+ debug_information [unit].cu_offset = cu_offset;
+ debug_information [unit].pointer_size
+ = compunit.cu_pointer_size;
+ debug_information [unit].offset_size = offset_size;
+ debug_information [unit].dwarf_version = compunit.cu_version;
+ debug_information [unit].base_address = 0;
+ debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE;
+ debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE;
+ debug_information [unit].loc_offsets = NULL;
+ debug_information [unit].have_frame_base = NULL;
+ debug_information [unit].max_loc_offsets = 0;
+ debug_information [unit].num_loc_offsets = 0;
+ debug_information [unit].range_lists = NULL;
+ debug_information [unit].max_range_lists= 0;
+ debug_information [unit].num_range_lists = 0;
+ }
+
+ if (!do_loc && dwarf_start_die == 0)
+ {
+ printf (_(" Compilation Unit @ offset 0x%s:\n"),
+ dwarf_vmatoa ("x", cu_offset));
+ printf (_(" Length: 0x%s (%s)\n"),
+ dwarf_vmatoa ("x", compunit.cu_length),
+ offset_size == 8 ? "64-bit" : "32-bit");
+ printf (_(" Version: %d\n"), compunit.cu_version);
+ if (compunit.cu_version >= 5)
+ printf (_(" Unit Type: %s (%x)\n"),
+ get_DW_UT_name (compunit.cu_unit_type) ?: "???",
+ compunit.cu_unit_type);
+ printf (_(" Abbrev Offset: 0x%s\n"),
+ dwarf_vmatoa ("x", compunit.cu_abbrev_offset));
+ printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
+ if (do_types)
+ {
+ char buf[64];
+
+ printf (_(" Signature: 0x%s\n"),
+ dwarf_vmatoa64 (signature_high, signature_low,
+ buf, sizeof (buf)));
+ printf (_(" Type Offset: 0x%s\n"),
+ dwarf_vmatoa ("x", type_offset));
+ }
+ if (do_dwo_id)
+ printf (_(" DWO ID: 0x%s\n"), dwarf_vmatoa ("x", dwo_id));
+ if (this_set != NULL)
+ {
+ dwarf_vma *offsets = this_set->section_offsets;
+ size_t *sizes = this_set->section_sizes;
+
+ printf (_(" Section contributions:\n"));
+ printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"),
+ dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]),
+ dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV]));
+ printf (_(" .debug_line.dwo: 0x%s 0x%s\n"),
+ dwarf_vmatoa ("x", offsets [DW_SECT_LINE]),
+ dwarf_vmatoa ("x", sizes [DW_SECT_LINE]));
+ printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"),
+ dwarf_vmatoa ("x", offsets [DW_SECT_LOC]),
+ dwarf_vmatoa ("x", sizes [DW_SECT_LOC]));
+ printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"),
+ dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]),
+ dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS]));
+ }
+ }
+
+ sec_off = cu_offset + initial_length_size;
+ if (sec_off + compunit.cu_length < sec_off
+ || sec_off + compunit.cu_length > section->size)
+ {
+ warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
+ section->name,
+ (unsigned long) cu_offset,
+ dwarf_vmatoa ("x", compunit.cu_length));
+ num_units = unit;
+ break;
+ }
+
+ tags = hdrptr;
+ start += compunit.cu_length + initial_length_size;
+
+ if (compunit.cu_version < 2 || compunit.cu_version > 5)
+ {
+ warn (_("CU at offset %s contains corrupt or "
+ "unsupported version number: %d.\n"),
+ dwarf_vmatoa ("x", cu_offset), compunit.cu_version);
+ continue;
+ }
+
+ if (compunit.cu_unit_type != DW_UT_compile
+ && compunit.cu_unit_type != DW_UT_partial
+ && compunit.cu_unit_type != DW_UT_type
+ && compunit.cu_unit_type != DW_UT_split_compile
+ && compunit.cu_unit_type != DW_UT_skeleton)
+ {
+ warn (_("CU at offset %s contains corrupt or "
+ "unsupported unit type: %d.\n"),
+ dwarf_vmatoa ("x", cu_offset), compunit.cu_unit_type);
+ continue;
+ }
+
+ /* Process the abbrevs used by this compilation unit. */
+ if (compunit.cu_abbrev_offset >= abbrev_size)
+ warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"),
+ (unsigned long) compunit.cu_abbrev_offset,
+ (unsigned long) abbrev_size);
+ /* PR 17531: file:4bcd9ce9. */
+ else if ((abbrev_base + abbrev_size)
+ > debug_displays [abbrev_sec].section.size)
+ warn (_("Debug info is corrupted, abbrev size (%lx) is larger than abbrev section size (%lx)\n"),
+ (unsigned long) abbrev_base + abbrev_size,
+ (unsigned long) debug_displays [abbrev_sec].section.size);
+ else
+ {
+ list = find_abbrev_list_by_abbrev_offset (abbrev_base,
+ compunit.cu_abbrev_offset);
+ if (list == NULL)
+ {
+ unsigned char * next;
+
+ list = new_abbrev_list (abbrev_base,
+ compunit.cu_abbrev_offset);
+ next = process_abbrev_set
+ (((unsigned char *) debug_displays [abbrev_sec].section.start
+ + abbrev_base + compunit.cu_abbrev_offset),
+ ((unsigned char *) debug_displays [abbrev_sec].section.start
+ + abbrev_base + abbrev_size),
+ list);
+ list->start_of_next_abbrevs = next;
+ }
+ }
+
+ level = 0;
+ last_level = level;
+ saved_level = -1;
+ while (tags < start)
+ {
+ unsigned long abbrev_number;
+ unsigned long die_offset;
+ abbrev_entry *entry;
+ abbrev_attr *attr;
+ int do_printing = 1;
+
+ die_offset = tags - section_begin;
+
+ READ_ULEB (abbrev_number, tags, start);
+
+ /* A null DIE marks the end of a list of siblings or it may also be
+ a section padding. */
+ if (abbrev_number == 0)
+ {
+ /* Check if it can be a section padding for the last CU. */
+ if (level == 0 && start == end)
+ {
+ unsigned char *chk;
+
+ for (chk = tags; chk < start; chk++)
+ if (*chk != 0)
+ break;
+ if (chk == start)
+ break;
+ }
+
+ if (!do_loc && die_offset >= dwarf_start_die
+ && (dwarf_cutoff_level == -1
+ || level < dwarf_cutoff_level))
+ printf (_(" <%d><%lx>: Abbrev Number: 0\n"),
+ level, die_offset);
+
+ --level;
+ if (level < 0)
+ {
+ static unsigned num_bogus_warns = 0;
+
+ if (num_bogus_warns < 3)
+ {
+ warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"),
+ die_offset, section->name);
+ num_bogus_warns ++;
+ if (num_bogus_warns == 3)
+ warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
+ }
+ }
+ if (dwarf_start_die != 0 && level < saved_level)
+ return true;
+ continue;
+ }
+
+ if (!do_loc)
+ {
+ if (dwarf_start_die != 0 && die_offset < dwarf_start_die)
+ do_printing = 0;
+ else
+ {
+ if (dwarf_start_die != 0 && die_offset == dwarf_start_die)
+ saved_level = level;
+ do_printing = (dwarf_cutoff_level == -1
+ || level < dwarf_cutoff_level);
+ if (do_printing)
+ printf (_(" <%d><%lx>: Abbrev Number: %lu"),
+ level, die_offset, abbrev_number);
+ else if (dwarf_cutoff_level == -1
+ || last_level < dwarf_cutoff_level)
+ printf (_(" <%d><%lx>: ...\n"), level, die_offset);
+ last_level = level;
+ }
+ }
+
+ /* Scan through the abbreviation list until we reach the
+ correct entry. */
+ if (list == NULL)
+ continue;
+
+ for (entry = list->first_abbrev; entry != NULL; entry = entry->next)
+ if (entry->number == abbrev_number)
+ break;
+
+ if (entry == NULL)
+ {
+ if (!do_loc && do_printing)
+ {
+ printf ("\n");
+ fflush (stdout);
+ }
+ warn (_("DIE at offset 0x%lx refers to abbreviation number %lu which does not exist\n"),
+ die_offset, abbrev_number);
+ return false;
+ }
+
+ if (!do_loc && do_printing)
+ printf (" (%s)\n", get_TAG_name (entry->tag));
+
+ switch (entry->tag)
+ {
+ default:
+ need_base_address = 0;
+ break;
+ case DW_TAG_compile_unit:
+ need_base_address = 1;
+ need_dwo_info = do_loc;
+ break;
+ case DW_TAG_entry_point:
+ case DW_TAG_subprogram:
+ need_base_address = 0;
+ /* Assuming that there is no DW_AT_frame_base. */
+ have_frame_base = 0;
+ break;
+ }
+
+ debug_info *debug_info_p =
+ (debug_information && unit < alloc_num_debug_info_entries)
+ ? debug_information + unit : NULL;
+
+ assert (!debug_info_p
+ || (debug_info_p->num_loc_offsets
+ == debug_info_p->num_loc_views));
+ for (attr = entry->first_attr;
+ attr && attr->attribute;
+ attr = attr->next)
+ {
+ if (! do_loc && do_printing)
+ /* Show the offset from where the tag was extracted. */
+ printf (" <%lx>", (unsigned long)(tags - section_begin));
tags = read_and_display_attr (attr->attribute,
attr->form,
attr->implicit_const,
+ section_begin,
tags,
end,
cu_offset,
debug_info_p,
do_loc || ! do_printing,
section,
- this_set);
+ this_set,
+ level);
}
/* If a locview attribute appears before a location one,
if (!do_loc)
printf ("\n");
- return 1;
+ return true;
}
/* Locate and scan the .debug_info section in the file and record the pointer
/* If this is a DWARF package file, load the CU and TU indexes. */
(void) load_cu_tu_indexes (file);
- if (load_debug_section (info, file)
- && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0))
+ if (load_debug_section_with_follow (info, file)
+ && process_debug_info (&debug_displays [info].section, file, abbrev, true, false))
return num_debug_info_entries;
- if (load_debug_section (info_dwo, file)
+ if (load_debug_section_with_follow (info_dwo, file)
&& process_debug_info (&debug_displays [info_dwo].section, file,
- abbrev_dwo, 1, 0))
+ abbrev_dwo, true, false))
return num_debug_info_entries;
num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
{
unsigned char *hdrptr;
unsigned int initial_length_size;
- unsigned char address_size, segment_selector_size;
/* Extract information from the Line Number Program Header.
(section 6.2.4 in the Dwarf3 doc). */
if (linfo->li_version >= 5)
{
- SAFE_BYTE_GET_AND_INC (address_size, hdrptr, 1, end);
+ SAFE_BYTE_GET_AND_INC (linfo->li_address_size, hdrptr, 1, end);
- SAFE_BYTE_GET_AND_INC (segment_selector_size, hdrptr, 1, end);
- if (segment_selector_size != 0)
+ SAFE_BYTE_GET_AND_INC (linfo->li_segment_size, hdrptr, 1, end);
+ if (linfo->li_segment_size != 0)
{
warn (_("The %s section contains "
"unsupported segment selector size: %d.\n"),
- section->name, segment_selector_size);
- return 0;
+ section->name, linfo->li_segment_size);
+ return NULL;
}
}
static unsigned char *
display_formatted_table (unsigned char *data,
- unsigned char *start, unsigned char *end,
+ unsigned char *start,
+ unsigned char *end,
const DWARF2_Internal_LineInfo *linfo,
- struct dwarf_section *section, const char *what)
+ struct dwarf_section *section,
+ bool is_dir)
{
unsigned char *format_start, format_count, *format, formati;
dwarf_vma data_count, datai;
- unsigned int bytes_read, namepass, last_entry = 0;
+ unsigned int namepass, last_entry = 0;
+ const char * table_name = is_dir ? N_("Directory Table") : N_("File Name Table");
SAFE_BYTE_GET_AND_INC (format_count, data, 1, end);
+ if (do_checks && format_count > 5)
+ warn (_("Unexpectedly large number of columns in the %s (%u)\n"),
+ table_name, format_count);
+
format_start = data;
for (formati = 0; formati < format_count; formati++)
{
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
+ SKIP_ULEB (data, end);
+ SKIP_ULEB (data, end);
if (data == end)
{
- warn (_("Corrupt %s format table entry\n"), what);
+ warn (_("%s: Corrupt format description entry\n"), table_name);
return data;
}
}
- data_count = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- if (data == end)
+ READ_ULEB (data_count, data, end);
+ if (data_count == 0)
{
- warn (_("Corrupt %s list\n"), what);
+ printf (_("\n The %s is empty.\n"), table_name);
return data;
}
-
- if (data_count == 0)
+ else if (data == end)
{
- printf (_("\n The %s Table is empty.\n"), what);
+ warn (_("%s: Corrupt entry count - expected %s but none found\n"),
+ table_name, dwarf_vmatoa ("x", data_count));
return data;
}
- printf (_("\n The %s Table (offset 0x%lx):\n"), what,
- (long)(data - start));
+ else if (format_count == 0)
+ {
+ warn (_("%s: format count is zero, but the table is not empty\n"),
+ table_name);
+ return end;
+ }
+
+ printf (_("\n The %s (offset 0x%lx, lines %s, columns %u):\n"),
+ table_name, (long) (data - start), dwarf_vmatoa ("u", data_count),
+ format_count);
printf (_(" Entry"));
- /* Delay displaying name as the last entry for better screen layout. */
+ /* Delay displaying name as the last entry for better screen layout. */
for (namepass = 0; namepass < 2; namepass++)
{
format = format_start;
{
dwarf_vma content_type;
- content_type = read_uleb128 (format, & bytes_read, end);
- format += bytes_read;
+ READ_ULEB (content_type, format, end);
if ((content_type == DW_LNCT_path) == (namepass == 1))
switch (content_type)
{
printf (_("\tSize"));
break;
case DW_LNCT_MD5:
- printf (_("\tMD5"));
+ printf (_("\tMD5\t\t\t"));
break;
default:
printf (_("\t(Unknown format content type %s)"),
dwarf_vmatoa ("u", content_type));
}
- read_uleb128 (format, & bytes_read, end);
- format += bytes_read;
+ SKIP_ULEB (format, end);
}
}
putchar ('\n');
unsigned char *datapass = data;
printf (" %d", last_entry++);
- /* Delay displaying name as the last entry for better screen layout. */
+ /* Delay displaying name as the last entry for better screen layout. */
for (namepass = 0; namepass < 2; namepass++)
{
format = format_start;
{
dwarf_vma content_type, form;
- content_type = read_uleb128 (format, & bytes_read, end);
- format += bytes_read;
- form = read_uleb128 (format, & bytes_read, end);
- format += bytes_read;
- data = read_and_display_attr_value (0, form, 0, data, end, 0, 0,
- linfo->li_offset_size,
+ READ_ULEB (content_type, format, end);
+ READ_ULEB (form, format, end);
+ data = read_and_display_attr_value (0, form, 0, start, data, end,
+ 0, 0, linfo->li_offset_size,
linfo->li_version, NULL,
((content_type == DW_LNCT_path) != (namepass == 1)),
- section, NULL, '\t');
+ section, NULL, '\t', -1);
}
}
- if (data == end)
+
+ if (data == end && (datai < data_count - 1))
{
- warn (_("Corrupt %s entries list\n"), what);
+ warn (_("\n%s: Corrupt entries list\n"), table_name);
return data;
}
putchar ('\n');
}
static int
-display_debug_lines_raw (struct dwarf_section *section,
- unsigned char *data,
- unsigned char *end, void *file)
+display_debug_sup (struct dwarf_section * section,
+ void * file ATTRIBUTE_UNUSED)
+{
+ unsigned char * start = section->start;
+ unsigned char * end = section->start + section->size;
+ unsigned int version;
+ char is_supplementary;
+ const unsigned char * sup_filename;
+ size_t sup_filename_len;
+ unsigned int num_read;
+ int status;
+ dwarf_vma checksum_len;
+
+
+ introduce (section, true);
+ if (section->size < 4)
+ {
+ error (_("corrupt .debug_sup section: size is too small\n"));
+ return 0;
+ }
+
+ /* Read the data. */
+ SAFE_BYTE_GET_AND_INC (version, start, 2, end);
+ if (version < 5)
+ warn (_("corrupt .debug_sup section: version < 5"));
+
+ SAFE_BYTE_GET_AND_INC (is_supplementary, start, 1, end);
+ if (is_supplementary != 0 && is_supplementary != 1)
+ warn (_("corrupt .debug_sup section: is_supplementary not 0 or 1\n"));
+
+ sup_filename = start;
+ if (is_supplementary && sup_filename[0] != 0)
+ warn (_("corrupt .debug_sup section: filename not empty in supplementary section\n"));
+
+ sup_filename_len = strnlen ((const char *) start, end - start);
+ if (sup_filename_len == (size_t) (end - start))
+ {
+ error (_("corrupt .debug_sup section: filename is not NUL terminated\n"));
+ return 0;
+ }
+ start += sup_filename_len + 1;
+
+ checksum_len = read_leb128 (start, end, false /* unsigned */, & num_read, & status);
+ if (status)
+ {
+ error (_("corrupt .debug_sup section: bad LEB128 field for checksum length\n"));
+ checksum_len = 0;
+ }
+ start += num_read;
+ if (checksum_len > (dwarf_vma) (end - start))
+ {
+ error (_("corrupt .debug_sup section: checksum length is longer than the remaining section length\n"));
+ checksum_len = end - start;
+ }
+ else if (checksum_len < (dwarf_vma) (end - start))
+ {
+ warn (_("corrupt .debug_sup section: there are 0x%lx extra, unused bytes at the end of the section\n"),
+ (long) ((end - start) - checksum_len));
+ }
+
+ printf (_(" Version: %u\n"), version);
+ printf (_(" Is Supp: %u\n"), is_supplementary);
+ printf (_(" Filename: %s\n"), sup_filename);
+ printf (_(" Checksum Len: %lu\n"), (long) checksum_len);
+ if (checksum_len > 0)
+ {
+ printf (_(" Checksum: "));
+ while (checksum_len--)
+ printf ("0x%x ", * start++ );
+ printf ("\n");
+ }
+ return 1;
+}
+
+static int
+display_debug_lines_raw (struct dwarf_section * section,
+ unsigned char * data,
+ unsigned char * end,
+ void * file)
{
unsigned char *start = section->start;
int verbose_view = 0;
- printf (_("Raw dump of debug contents of section %s:\n\n"),
- section->name);
+ introduce (section, true);
while (data < end)
{
unsigned char *end_of_sequence;
int i;
- if (const_strneq (section->name, ".debug_line.")
+ if (startswith (section->name, ".debug_line.")
/* Note: the following does not apply to .debug_line.dwo sections.
These are full debug_line sections. */
&& strcmp (section->name, ".debug_line.dwo") != 0)
printf (_(" Offset: 0x%lx\n"), (long)(data - start));
printf (_(" Length: %ld\n"), (long) linfo.li_length);
printf (_(" DWARF Version: %d\n"), linfo.li_version);
+ if (linfo.li_version >= 5)
+ {
+ printf (_(" Address size (bytes): %d\n"), linfo.li_address_size);
+ printf (_(" Segment selector (bytes): %d\n"), linfo.li_segment_size);
+ }
printf (_(" Prologue Length: %d\n"), (int) linfo.li_prologue_length);
printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length);
if (linfo.li_version >= 4)
printf (_("\n Opcodes:\n"));
for (i = 1; i < linfo.li_opcode_base; i++)
- printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
+ printf (ngettext (" Opcode %d has %d arg\n",
+ " Opcode %d has %d args\n",
+ standard_opcodes[i - 1]),
+ i, standard_opcodes[i - 1]);
/* Display the contents of the Directory table. */
data = standard_opcodes + linfo.li_opcode_base - 1;
if (linfo.li_version >= 5)
{
- load_debug_section (line_str, file);
+ load_debug_section_with_follow (line_str, file);
data = display_formatted_table (data, start, end, &linfo, section,
- _("Directory"));
+ true);
data = display_formatted_table (data, start, end, &linfo, section,
- _("File name"));
+ false);
}
else
{
while (data < end && *data != 0)
{
unsigned char *name;
- unsigned int bytes_read;
+ dwarf_vma val;
printf (" %d\t", ++state_machine_regs.last_file_entry);
name = data;
data += strnlen ((char *) data, end - data) + 1;
- printf ("%s\t",
- dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
- data += bytes_read;
- printf ("%s\t",
- dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
- data += bytes_read;
- printf ("%s\t",
- dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
- data += bytes_read;
+ READ_ULEB (val, data, end);
+ printf ("%s\t", dwarf_vmatoa ("u", val));
+ READ_ULEB (val, data, end);
+ printf ("%s\t", dwarf_vmatoa ("u", val));
+ READ_ULEB (val, data, end);
+ printf ("%s\t", dwarf_vmatoa ("u", val));
printf ("%.*s\n", (int)(end - name), name);
if (data == end)
unsigned char op_code;
dwarf_signed_vma adv;
dwarf_vma uladv;
- unsigned int bytes_read;
printf (" [0x%08lx]", (long)(data - start));
putchar ('\n');
state_machine_regs.view++;
}
- else switch (op_code)
- {
- case DW_LNS_extended_op:
- data += process_extended_line_op (data, linfo.li_default_is_stmt, end);
- break;
-
- case DW_LNS_copy:
- printf (_(" Copy"));
- if (verbose_view || state_machine_regs.view)
- printf (_(" (view %u)\n"), state_machine_regs.view);
- else
- putchar ('\n');
- state_machine_regs.view++;
- break;
-
- case DW_LNS_advance_pc:
- uladv = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- if (linfo.li_max_ops_per_insn == 1)
- {
- uladv *= linfo.li_min_insn_length;
- state_machine_regs.address += uladv;
- if (uladv)
- state_machine_regs.view = 0;
- printf (_(" Advance PC by %s to 0x%s%s\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address),
- verbose_view && uladv
- ? _(" (reset view)") : "");
- }
- else
- {
- unsigned addrdelta
- = ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
- * linfo.li_min_insn_length;
- state_machine_regs.address
- += addrdelta;
- state_machine_regs.op_index
- = (state_machine_regs.op_index + uladv)
- % linfo.li_max_ops_per_insn;
- if (addrdelta)
- state_machine_regs.view = 0;
- printf (_(" Advance PC by %s to 0x%s[%d]%s\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address),
- state_machine_regs.op_index,
- verbose_view && addrdelta
- ? _(" (reset view)") : "");
- }
- break;
-
- case DW_LNS_advance_line:
- adv = read_sleb128 (data, & bytes_read, end);
- data += bytes_read;
- state_machine_regs.line += adv;
- printf (_(" Advance Line by %s to %d\n"),
- dwarf_vmatoa ("d", adv),
- state_machine_regs.line);
- break;
-
- case DW_LNS_set_file:
- adv = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- printf (_(" Set File Name to entry %s in the File Name Table\n"),
- dwarf_vmatoa ("d", adv));
- state_machine_regs.file = adv;
- break;
-
- case DW_LNS_set_column:
- uladv = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- printf (_(" Set column to %s\n"),
- dwarf_vmatoa ("u", uladv));
- state_machine_regs.column = uladv;
- break;
-
- case DW_LNS_negate_stmt:
- adv = state_machine_regs.is_stmt;
- adv = ! adv;
- printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv));
- state_machine_regs.is_stmt = adv;
- break;
-
- case DW_LNS_set_basic_block:
- printf (_(" Set basic block\n"));
- state_machine_regs.basic_block = 1;
- break;
-
- case DW_LNS_const_add_pc:
- uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
- if (linfo.li_max_ops_per_insn)
- {
- uladv *= linfo.li_min_insn_length;
- state_machine_regs.address += uladv;
- if (uladv)
- state_machine_regs.view = 0;
- printf (_(" Advance PC by constant %s to 0x%s%s\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address),
- verbose_view && uladv
- ? _(" (reset view)") : "");
- }
- else
- {
- unsigned addrdelta
- = ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
- * linfo.li_min_insn_length;
- state_machine_regs.address
- += addrdelta;
- state_machine_regs.op_index
- = (state_machine_regs.op_index + uladv)
- % linfo.li_max_ops_per_insn;
- if (addrdelta)
- state_machine_regs.view = 0;
- printf (_(" Advance PC by constant %s to 0x%s[%d]%s\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address),
- state_machine_regs.op_index,
- verbose_view && addrdelta
- ? _(" (reset view)") : "");
- }
- break;
-
- case DW_LNS_fixed_advance_pc:
- SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
- state_machine_regs.address += uladv;
- state_machine_regs.op_index = 0;
- printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address));
- /* Do NOT reset view. */
- break;
-
- case DW_LNS_set_prologue_end:
- printf (_(" Set prologue_end to true\n"));
- break;
-
- case DW_LNS_set_epilogue_begin:
- printf (_(" Set epilogue_begin to true\n"));
- break;
-
- case DW_LNS_set_isa:
- uladv = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv));
- break;
-
- default:
- printf (_(" Unknown opcode %d with operands: "), op_code);
-
- if (standard_opcodes != NULL)
- for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
- {
- printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data,
- &bytes_read, end)),
- i == 1 ? "" : ", ");
- data += bytes_read;
- }
- putchar ('\n');
- break;
- }
+ else
+ switch (op_code)
+ {
+ case DW_LNS_extended_op:
+ data += process_extended_line_op (data,
+ linfo.li_default_is_stmt,
+ end);
+ break;
+
+ case DW_LNS_copy:
+ printf (_(" Copy"));
+ if (verbose_view || state_machine_regs.view)
+ printf (_(" (view %u)\n"), state_machine_regs.view);
+ else
+ putchar ('\n');
+ state_machine_regs.view++;
+ break;
+
+ case DW_LNS_advance_pc:
+ READ_ULEB (uladv, data, end);
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ if (uladv)
+ state_machine_regs.view = 0;
+ printf (_(" Advance PC by %s to 0x%s%s\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ verbose_view && uladv
+ ? _(" (reset view)") : "");
+ }
+ else
+ {
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ if (addrdelta)
+ state_machine_regs.view = 0;
+ printf (_(" Advance PC by %s to 0x%s[%d]%s\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ state_machine_regs.op_index,
+ verbose_view && addrdelta
+ ? _(" (reset view)") : "");
+ }
+ break;
+
+ case DW_LNS_advance_line:
+ READ_SLEB (adv, data, end);
+ state_machine_regs.line += adv;
+ printf (_(" Advance Line by %s to %d\n"),
+ dwarf_vmatoa ("d", adv),
+ state_machine_regs.line);
+ break;
+
+ case DW_LNS_set_file:
+ READ_ULEB (uladv, data, end);
+ printf (_(" Set File Name to entry %s in the File Name Table\n"),
+ dwarf_vmatoa ("u", uladv));
+ state_machine_regs.file = uladv;
+ break;
+
+ case DW_LNS_set_column:
+ READ_ULEB (uladv, data, end);
+ printf (_(" Set column to %s\n"),
+ dwarf_vmatoa ("u", uladv));
+ state_machine_regs.column = uladv;
+ break;
+
+ case DW_LNS_negate_stmt:
+ adv = state_machine_regs.is_stmt;
+ adv = ! adv;
+ printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv));
+ state_machine_regs.is_stmt = adv;
+ break;
+
+ case DW_LNS_set_basic_block:
+ printf (_(" Set basic block\n"));
+ state_machine_regs.basic_block = 1;
+ break;
+
+ case DW_LNS_const_add_pc:
+ uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
+ if (linfo.li_max_ops_per_insn)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ if (uladv)
+ state_machine_regs.view = 0;
+ printf (_(" Advance PC by constant %s to 0x%s%s\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ verbose_view && uladv
+ ? _(" (reset view)") : "");
+ }
+ else
+ {
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ if (addrdelta)
+ state_machine_regs.view = 0;
+ printf (_(" Advance PC by constant %s to 0x%s[%d]%s\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ state_machine_regs.op_index,
+ verbose_view && addrdelta
+ ? _(" (reset view)") : "");
+ }
+ break;
+
+ case DW_LNS_fixed_advance_pc:
+ SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
+ state_machine_regs.address += uladv;
+ state_machine_regs.op_index = 0;
+ printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", state_machine_regs.address));
+ /* Do NOT reset view. */
+ break;
+
+ case DW_LNS_set_prologue_end:
+ printf (_(" Set prologue_end to true\n"));
+ break;
+
+ case DW_LNS_set_epilogue_begin:
+ printf (_(" Set epilogue_begin to true\n"));
+ break;
+
+ case DW_LNS_set_isa:
+ READ_ULEB (uladv, data, end);
+ printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv));
+ break;
+
+ default:
+ printf (_(" Unknown opcode %d with operands: "), op_code);
+
+ if (standard_opcodes != NULL)
+ for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
+ {
+ READ_ULEB (uladv, data, end);
+ printf ("0x%s%s", dwarf_vmatoa ("x", uladv),
+ i == 1 ? "" : ", ");
+ }
+ putchar ('\n');
+ break;
+ }
}
putchar ('\n');
}
/* Output a decoded representation of the .debug_line section. */
static int
-display_debug_lines_decoded (struct dwarf_section *section,
- unsigned char *data,
- unsigned char *end, void *fileptr)
+display_debug_lines_decoded (struct dwarf_section * section,
+ unsigned char * start,
+ unsigned char * data,
+ unsigned char * end,
+ void * fileptr)
{
static DWARF2_Internal_LineInfo saved_linfo;
- printf (_("Decoded dump of debug contents of section %s:\n\n"),
- section->name);
+ introduce (section, false);
while (data < end)
{
unsigned char **directory_table = NULL;
dwarf_vma n_directories = 0;
- if (const_strneq (section->name, ".debug_line.")
+ if (startswith (section->name, ".debug_line.")
/* Note: the following does not apply to .debug_line.dwo sections.
These are full debug_line sections. */
&& strcmp (section->name, ".debug_line.dwo") != 0)
{
unsigned char *format_start, format_count, *format;
dwarf_vma formati, entryi;
- unsigned int bytes_read;
- load_debug_section (line_str, fileptr);
+ load_debug_section_with_follow (line_str, fileptr);
/* Skip directories format. */
SAFE_BYTE_GET_AND_INC (format_count, data, 1, end);
+ if (do_checks && format_count > 1)
+ warn (_("Unexpectedly large number of columns in the directory name table (%u)\n"),
+ format_count);
format_start = data;
for (formati = 0; formati < format_count; formati++)
{
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
+ SKIP_ULEB (data, end);
+ SKIP_ULEB (data, end);
}
- n_directories = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
+ READ_ULEB (n_directories, data, end);
if (data == end)
{
warn (_("Corrupt directories list\n"));
break;
}
- directory_table = (unsigned char **)
- xmalloc (n_directories * sizeof (unsigned char *));
+ if (n_directories == 0)
+ directory_table = NULL;
+ else
+ directory_table = (unsigned char **)
+ xmalloc (n_directories * sizeof (unsigned char *));
for (entryi = 0; entryi < n_directories; entryi++)
{
dwarf_vma content_type, form;
dwarf_vma uvalue;
- content_type = read_uleb128 (format, & bytes_read, end);
- format += bytes_read;
- form = read_uleb128 (format, & bytes_read, end);
- format += bytes_read;
+ READ_ULEB (content_type, format, end);
+ READ_ULEB (form, format, end);
if (data == end)
{
warn (_("Corrupt directories list\n"));
}
break;
}
- data = read_and_display_attr_value (0, form, 0, data, end,
- 0, 0,
+ data = read_and_display_attr_value (0, form, 0, start,
+ data, end, 0, 0,
linfo.li_offset_size,
linfo.li_version,
NULL, 1, section,
- NULL, '\t');
+ NULL, '\t', -1);
}
if (data == end)
{
/* Skip files format. */
SAFE_BYTE_GET_AND_INC (format_count, data, 1, end);
+ if (do_checks && format_count > 5)
+ warn (_("Unexpectedly large number of columns in the file name table (%u)\n"),
+ format_count);
format_start = data;
for (formati = 0; formati < format_count; formati++)
{
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
+ SKIP_ULEB (data, end);
+ SKIP_ULEB (data, end);
}
- n_files = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- if (data == end)
+ READ_ULEB (n_files, data, end);
+ if (data == end && n_files > 0)
{
warn (_("Corrupt file name list\n"));
break;
}
- file_table = (File_Entry *) xcalloc (1, n_files
- * sizeof (File_Entry));
+ if (n_files == 0)
+ file_table = NULL;
+ else
+ file_table = (File_Entry *) xcalloc (1, n_files
+ * sizeof (File_Entry));
for (entryi = 0; entryi < n_files; entryi++)
{
{
dwarf_vma content_type, form;
dwarf_vma uvalue;
+ unsigned char *tmp;
- content_type = read_uleb128 (format, & bytes_read, end);
- format += bytes_read;
- form = read_uleb128 (format, & bytes_read, end);
- format += bytes_read;
+ READ_ULEB (content_type, format, end);
+ READ_ULEB (form, format, end);
if (data == end)
{
warn (_("Corrupt file name list\n"));
end);
break;
case DW_FORM_udata:
- file->directory_index = read_uleb128 (data, NULL,
- end);
+ tmp = data;
+ READ_ULEB (file->directory_index, tmp, end);
break;
}
break;
}
- data = read_and_display_attr_value (0, form, 0, data, end,
- 0, 0,
+ data = read_and_display_attr_value (0, form, 0, start,
+ data, end, 0, 0,
linfo.li_offset_size,
linfo.li_version,
NULL, 1, section,
- NULL, '\t');
+ NULL, '\t', -1);
}
if (data == end)
{
while (data < end && *data != 0)
{
- unsigned int bytes_read;
-
- /* Skip Name, directory index, last modification time and length
- of file. */
+ /* Skip Name, directory index, last modification
+ time and length of file. */
data += strnlen ((char *) data, end - data) + 1;
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
-
+ SKIP_ULEB (data, end);
+ SKIP_ULEB (data, end);
+ SKIP_ULEB (data, end);
n_files++;
}
i = 0;
while (*ptr_file_name_table != 0)
{
- unsigned int bytes_read;
-
file_table[i].name = ptr_file_name_table;
ptr_file_name_table += strnlen ((char *) ptr_file_name_table,
end - ptr_file_name_table) + 1;
/* We are not interested in directory, time or size. */
- file_table[i].directory_index = read_uleb128 (ptr_file_name_table,
- & bytes_read, end);
- ptr_file_name_table += bytes_read;
- file_table[i].modification_date = read_uleb128 (ptr_file_name_table,
- & bytes_read, end);
- ptr_file_name_table += bytes_read;
- file_table[i].length = read_uleb128 (ptr_file_name_table, & bytes_read, end);
- ptr_file_name_table += bytes_read;
+ READ_ULEB (file_table[i].directory_index,
+ ptr_file_name_table, end);
+ READ_ULEB (file_table[i].modification_date,
+ ptr_file_name_table, end);
+ READ_ULEB (file_table[i].length,
+ ptr_file_name_table, end);
i++;
}
i = 0;
/* Print the Compilation Unit's name and a header. */
if (file_table == NULL)
- ;
+ printf (_("CU: No directory table\n"));
else if (directory_table == NULL)
printf (_("CU: %s:\n"), file_table[0].name);
else
printf ("%s:\n", file_table[0].name);
}
- printf (_("File name Line number Starting address View\n"));
+ if (n_files > 0)
+ printf (_("File name Line number Starting address View Stmt\n"));
+ else
+ printf (_("CU: Empty file name table\n"));
saved_linfo = linfo;
}
int xop;
int adv;
unsigned long int uladv;
- unsigned int bytes_read;
int is_special_opcode = 0;
op_code = *data++;
is_special_opcode = 1;
/* Increment view after printing this row. */
}
- else switch (op_code)
- {
- case DW_LNS_extended_op:
- {
- unsigned int ext_op_code_len;
- unsigned char ext_op_code;
- unsigned char *op_code_data = data;
-
- ext_op_code_len = read_uleb128 (op_code_data, &bytes_read,
- end_of_sequence);
- op_code_data += bytes_read;
-
- if (ext_op_code_len == 0)
- {
- warn (_("Badly formed extended line op encountered!\n"));
- break;
- }
- ext_op_code_len += bytes_read;
- ext_op_code = *op_code_data++;
- xop = ext_op_code;
- xop = -xop;
-
- switch (ext_op_code)
- {
- case DW_LNE_end_sequence:
- /* Reset stuff after printing this row. */
- break;
- case DW_LNE_set_address:
- SAFE_BYTE_GET_AND_INC (state_machine_regs.address,
- op_code_data,
- ext_op_code_len - bytes_read - 1,
- end);
- state_machine_regs.op_index = 0;
- state_machine_regs.view = 0;
- break;
- case DW_LNE_define_file:
- {
- file_table = (File_Entry *) xrealloc
- (file_table, (n_files + 1) * sizeof (File_Entry));
-
- ++state_machine_regs.last_file_entry;
- /* Source file name. */
- file_table[n_files].name = op_code_data;
- op_code_data += strlen ((char *) op_code_data) + 1;
- /* Directory index. */
- file_table[n_files].directory_index =
- read_uleb128 (op_code_data, & bytes_read,
- end_of_sequence);
- op_code_data += bytes_read;
- /* Last modification time. */
- file_table[n_files].modification_date =
- read_uleb128 (op_code_data, & bytes_read,
- end_of_sequence);
- op_code_data += bytes_read;
- /* File length. */
- file_table[n_files].length =
- read_uleb128 (op_code_data, & bytes_read,
- end_of_sequence);
-
- n_files++;
- break;
- }
- case DW_LNE_set_discriminator:
- case DW_LNE_HP_set_sequence:
- /* Simply ignored. */
- break;
-
- default:
- printf (_("UNKNOWN (%u): length %d\n"),
- ext_op_code, ext_op_code_len - bytes_read);
- break;
- }
- data += ext_op_code_len;
- break;
- }
- case DW_LNS_copy:
- /* Increment view after printing this row. */
- break;
-
- case DW_LNS_advance_pc:
- uladv = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- if (linfo.li_max_ops_per_insn == 1)
- {
- uladv *= linfo.li_min_insn_length;
- state_machine_regs.address += uladv;
- if (uladv)
- state_machine_regs.view = 0;
- }
- else
- {
- unsigned addrdelta
- = ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
- * linfo.li_min_insn_length;
- state_machine_regs.address
- += addrdelta;
- state_machine_regs.op_index
- = (state_machine_regs.op_index + uladv)
- % linfo.li_max_ops_per_insn;
- if (addrdelta)
- state_machine_regs.view = 0;
- }
- break;
-
- case DW_LNS_advance_line:
- adv = read_sleb128 (data, & bytes_read, end);
- data += bytes_read;
- state_machine_regs.line += adv;
- break;
-
- case DW_LNS_set_file:
- adv = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- state_machine_regs.file = adv;
-
- {
- unsigned file = state_machine_regs.file - 1;
- unsigned dir;
-
- if (file_table == NULL || n_files == 0)
- printf (_("\n [Use file table entry %d]\n"), file);
- /* PR 20439 */
- else if (file >= n_files)
- {
- warn (_("file index %u > number of files %u\n"), file + 1, n_files);
- printf (_("\n <over large file table index %u>"), file);
- }
- else if ((dir = file_table[file].directory_index) == 0)
- /* If directory index is 0, that means current directory. */
- printf ("\n./%s:[++]\n", file_table[file].name);
- else if (directory_table == NULL || n_directories == 0)
- printf (_("\n [Use file %s in directory table entry %d]\n"),
- file_table[file].name, dir);
- /* PR 20439 */
- else if (dir > n_directories)
- {
- warn (_("directory index %u > number of directories %s\n"),
- dir, dwarf_vmatoa ("u", n_directories));
- printf (_("\n <over large directory table entry %u>\n"), dir);
- }
- else
- printf ("\n%s/%s:\n",
- /* The directory index starts counting at 1. */
- directory_table[dir - 1], file_table[file].name);
- }
- break;
-
- case DW_LNS_set_column:
- uladv = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- state_machine_regs.column = uladv;
- break;
-
- case DW_LNS_negate_stmt:
- adv = state_machine_regs.is_stmt;
- adv = ! adv;
- state_machine_regs.is_stmt = adv;
- break;
-
- case DW_LNS_set_basic_block:
- state_machine_regs.basic_block = 1;
- break;
-
- case DW_LNS_const_add_pc:
- uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
- if (linfo.li_max_ops_per_insn == 1)
- {
- uladv *= linfo.li_min_insn_length;
- state_machine_regs.address += uladv;
- if (uladv)
- state_machine_regs.view = 0;
- }
- else
- {
- unsigned addrdelta
- = ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
- * linfo.li_min_insn_length;
- state_machine_regs.address
- += addrdelta;
- state_machine_regs.op_index
- = (state_machine_regs.op_index + uladv)
- % linfo.li_max_ops_per_insn;
- if (addrdelta)
- state_machine_regs.view = 0;
- }
- break;
-
- case DW_LNS_fixed_advance_pc:
- SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
- state_machine_regs.address += uladv;
- state_machine_regs.op_index = 0;
- /* Do NOT reset view. */
- break;
-
- case DW_LNS_set_prologue_end:
- break;
-
- case DW_LNS_set_epilogue_begin:
- break;
-
- case DW_LNS_set_isa:
- uladv = read_uleb128 (data, & bytes_read, end);
- data += bytes_read;
- printf (_(" Set ISA to %lu\n"), uladv);
- break;
-
- default:
- printf (_(" Unknown opcode %d with operands: "), op_code);
-
- if (standard_opcodes != NULL)
- for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
- {
- printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data,
- &bytes_read, end)),
- i == 1 ? "" : ", ");
- data += bytes_read;
- }
- putchar ('\n');
- break;
- }
+ else
+ switch (op_code)
+ {
+ case DW_LNS_extended_op:
+ {
+ unsigned int ext_op_code_len;
+ unsigned char ext_op_code;
+ unsigned char *op_code_end;
+ unsigned char *op_code_data = data;
+
+ READ_ULEB (ext_op_code_len, op_code_data, end_of_sequence);
+ op_code_end = op_code_data + ext_op_code_len;
+ if (ext_op_code_len == 0 || op_code_end > end_of_sequence)
+ {
+ warn (_("Badly formed extended line op encountered!\n"));
+ break;
+ }
+ ext_op_code = *op_code_data++;
+ xop = ext_op_code;
+ xop = -xop;
+
+ switch (ext_op_code)
+ {
+ case DW_LNE_end_sequence:
+ /* Reset stuff after printing this row. */
+ break;
+ case DW_LNE_set_address:
+ SAFE_BYTE_GET_AND_INC (state_machine_regs.address,
+ op_code_data,
+ op_code_end - op_code_data,
+ op_code_end);
+ state_machine_regs.op_index = 0;
+ state_machine_regs.view = 0;
+ break;
+ case DW_LNE_define_file:
+ file_table = (File_Entry *) xrealloc
+ (file_table, (n_files + 1) * sizeof (File_Entry));
+
+ ++state_machine_regs.last_file_entry;
+ /* Source file name. */
+ file_table[n_files].name = op_code_data;
+ op_code_data += strlen ((char *) op_code_data) + 1;
+ /* Directory index. */
+ READ_ULEB (file_table[n_files].directory_index,
+ op_code_data, op_code_end);
+ /* Last modification time. */
+ READ_ULEB (file_table[n_files].modification_date,
+ op_code_data, op_code_end);
+ /* File length. */
+ READ_ULEB (file_table[n_files].length,
+ op_code_data, op_code_end);
+ n_files++;
+ break;
+
+ case DW_LNE_set_discriminator:
+ case DW_LNE_HP_set_sequence:
+ /* Simply ignored. */
+ break;
+
+ default:
+ printf (_("UNKNOWN (%u): length %ld\n"),
+ ext_op_code, (long int) (op_code_data - data));
+ break;
+ }
+ data = op_code_end;
+ break;
+ }
+ case DW_LNS_copy:
+ /* Increment view after printing this row. */
+ break;
+
+ case DW_LNS_advance_pc:
+ READ_ULEB (uladv, data, end);
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ if (uladv)
+ state_machine_regs.view = 0;
+ }
+ else
+ {
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ if (addrdelta)
+ state_machine_regs.view = 0;
+ }
+ break;
+
+ case DW_LNS_advance_line:
+ READ_SLEB (adv, data, end);
+ state_machine_regs.line += adv;
+ break;
+
+ case DW_LNS_set_file:
+ READ_ULEB (uladv, data, end);
+ state_machine_regs.file = uladv;
+
+ {
+ unsigned file = state_machine_regs.file - 1;
+ unsigned dir;
+
+ if (file_table == NULL || n_files == 0)
+ printf (_("\n [Use file table entry %d]\n"), file);
+ /* PR 20439 */
+ else if (file >= n_files)
+ {
+ warn (_("file index %u > number of files %u\n"), file + 1, n_files);
+ printf (_("\n <over large file table index %u>"), file);
+ }
+ else if ((dir = file_table[file].directory_index) == 0)
+ /* If directory index is 0, that means current directory. */
+ printf ("\n./%s:[++]\n", file_table[file].name);
+ else if (directory_table == NULL || n_directories == 0)
+ printf (_("\n [Use file %s in directory table entry %d]\n"),
+ file_table[file].name, dir);
+ /* PR 20439 */
+ else if (dir > n_directories)
+ {
+ warn (_("directory index %u > number of directories %s\n"),
+ dir, dwarf_vmatoa ("u", n_directories));
+ printf (_("\n <over large directory table entry %u>\n"), dir);
+ }
+ else
+ printf ("\n%s/%s:\n",
+ /* The directory index starts counting at 1. */
+ directory_table[dir - 1], file_table[file].name);
+ }
+ break;
+
+ case DW_LNS_set_column:
+ READ_ULEB (uladv, data, end);
+ state_machine_regs.column = uladv;
+ break;
+
+ case DW_LNS_negate_stmt:
+ adv = state_machine_regs.is_stmt;
+ adv = ! adv;
+ state_machine_regs.is_stmt = adv;
+ break;
+
+ case DW_LNS_set_basic_block:
+ state_machine_regs.basic_block = 1;
+ break;
+
+ case DW_LNS_const_add_pc:
+ uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ if (uladv)
+ state_machine_regs.view = 0;
+ }
+ else
+ {
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ if (addrdelta)
+ state_machine_regs.view = 0;
+ }
+ break;
+
+ case DW_LNS_fixed_advance_pc:
+ SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
+ state_machine_regs.address += uladv;
+ state_machine_regs.op_index = 0;
+ /* Do NOT reset view. */
+ break;
+
+ case DW_LNS_set_prologue_end:
+ break;
+
+ case DW_LNS_set_epilogue_begin:
+ break;
+
+ case DW_LNS_set_isa:
+ READ_ULEB (uladv, data, end);
+ printf (_(" Set ISA to %lu\n"), uladv);
+ break;
+
+ default:
+ printf (_(" Unknown opcode %d with operands: "), op_code);
+
+ if (standard_opcodes != NULL)
+ for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
+ {
+ dwarf_vma val;
+
+ READ_ULEB (val, data, end);
+ printf ("0x%s%s", dwarf_vmatoa ("x", val),
+ i == 1 ? "" : ", ");
+ }
+ putchar ('\n');
+ break;
+ }
/* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
to the DWARF address/line matrix. */
strncpy (newFileName,
fileName + fileNameLength - MAX_FILENAME_LENGTH,
MAX_FILENAME_LENGTH + 1);
+ /* FIXME: This is to pacify gcc-10 which can warn that the
+ strncpy above might leave a non-NUL terminated string
+ in newFileName. It won't, but gcc's analysis doesn't
+ quite go far enough to discover this. */
+ newFileName[MAX_FILENAME_LENGTH] = 0;
}
else
{
strncpy (newFileName, fileName, fileNameLength + 1);
}
+ /* A row with end_seq set to true has a meaningful address, but
+ the other information in the same row is not significant.
+ In such a row, print line as "-", and don't print
+ view/is_stmt. */
if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
{
if (linfo.li_max_ops_per_insn == 1)
- printf ("%-35s %11d %#18" DWARF_VMA_FMT "x",
- newFileName, state_machine_regs.line,
- state_machine_regs.address);
+ {
+ if (xop == -DW_LNE_end_sequence)
+ printf ("%-35s %11s %#18" DWARF_VMA_FMT "x",
+ newFileName, "-",
+ state_machine_regs.address);
+ else
+ printf ("%-35s %11d %#18" DWARF_VMA_FMT "x",
+ newFileName, state_machine_regs.line,
+ state_machine_regs.address);
+ }
else
- printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]",
- newFileName, state_machine_regs.line,
- state_machine_regs.address,
- state_machine_regs.op_index);
+ {
+ if (xop == -DW_LNE_end_sequence)
+ printf ("%-35s %11s %#18" DWARF_VMA_FMT "x[%d]",
+ newFileName, "-",
+ state_machine_regs.address,
+ state_machine_regs.op_index);
+ else
+ printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]",
+ newFileName, state_machine_regs.line,
+ state_machine_regs.address,
+ state_machine_regs.op_index);
+ }
}
else
{
if (linfo.li_max_ops_per_insn == 1)
- printf ("%s %11d %#18" DWARF_VMA_FMT "x",
- newFileName, state_machine_regs.line,
- state_machine_regs.address);
+ {
+ if (xop == -DW_LNE_end_sequence)
+ printf ("%s %11s %#18" DWARF_VMA_FMT "x",
+ newFileName, "-",
+ state_machine_regs.address);
+ else
+ printf ("%s %11d %#18" DWARF_VMA_FMT "x",
+ newFileName, state_machine_regs.line,
+ state_machine_regs.address);
+ }
else
- printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]",
- newFileName, state_machine_regs.line,
- state_machine_regs.address,
- state_machine_regs.op_index);
+ {
+ if (xop == -DW_LNE_end_sequence)
+ printf ("%s %11s %#18" DWARF_VMA_FMT "x[%d]",
+ newFileName, "-",
+ state_machine_regs.address,
+ state_machine_regs.op_index);
+ else
+ printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]",
+ newFileName, state_machine_regs.line,
+ state_machine_regs.address,
+ state_machine_regs.op_index);
+ }
}
- if (state_machine_regs.view)
- printf (" %6u\n", state_machine_regs.view);
- else
- putchar ('\n');
+ if (xop != -DW_LNE_end_sequence)
+ {
+ if (state_machine_regs.view)
+ printf (" %6u", state_machine_regs.view);
+ else
+ printf (" ");
+
+ if (state_machine_regs.is_stmt)
+ printf (" x");
+ }
+
+ putchar ('\n');
state_machine_regs.view++;
if (xop == -DW_LNE_end_sequence)
retValRaw = display_debug_lines_raw (section, data, end, file);
if (do_debug_lines & FLAG_DEBUG_LINES_DECODED)
- retValDecoded = display_debug_lines_decoded (section, data, end, file);
+ retValDecoded = display_debug_lines_decoded (section, data, data, end, file);
if (!retValRaw || !retValDecoded)
return 0;
we test for that later on. */
load_debug_info (file);
- printf (_("Contents of the %s section:\n\n"), section->name);
+ introduce (section, false);
while (start < end)
{
unsigned char *start = section->start;
unsigned char *end = start + section->size;
unsigned char *curr = start;
- unsigned int bytes_read;
enum dwarf_macinfo_record_type op;
- printf (_("Contents of the %s section:\n\n"), section->name);
+ introduce (section, false);
while (curr < end)
{
{
unsigned int filenum;
- lineno = read_uleb128 (curr, & bytes_read, end);
- curr += bytes_read;
- filenum = read_uleb128 (curr, & bytes_read, end);
- curr += bytes_read;
-
+ READ_ULEB (lineno, curr, end);
+ READ_ULEB (filenum, curr, end);
printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
lineno, filenum);
}
break;
case DW_MACINFO_define:
- lineno = read_uleb128 (curr, & bytes_read, end);
- curr += bytes_read;
+ READ_ULEB (lineno, curr, end);
string = curr;
curr += strnlen ((char *) string, end - string) + 1;
printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
break;
case DW_MACINFO_undef:
- lineno = read_uleb128 (curr, & bytes_read, end);
- curr += bytes_read;
+ READ_ULEB (lineno, curr, end);
string = curr;
curr += strnlen ((char *) string, end - string) + 1;
printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
{
unsigned int constant;
- constant = read_uleb128 (curr, & bytes_read, end);
- curr += bytes_read;
+ READ_ULEB (constant, curr, end);
string = curr;
curr += strnlen ((char *) string, end - string) + 1;
printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
struct dwarf_section *section = &debug_displays [line].section;
unsigned char *hdrptr, *dirtable, *file_name;
unsigned int offset_size, initial_length_size;
- unsigned int version, opcode_base, bytes_read;
+ unsigned int version, opcode_base;
dwarf_vma length, diridx;
const unsigned char * end;
for (; hdrptr < end && *hdrptr != '\0' && fileidx > 1; fileidx--)
{
hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1;
- read_uleb128 (hdrptr, &bytes_read, end);
- hdrptr += bytes_read;
- read_uleb128 (hdrptr, &bytes_read, end);
- hdrptr += bytes_read;
- read_uleb128 (hdrptr, &bytes_read, end);
- hdrptr += bytes_read;
+ SKIP_ULEB (hdrptr, end);
+ SKIP_ULEB (hdrptr, end);
+ SKIP_ULEB (hdrptr, end);
}
if (hdrptr >= end || *hdrptr == '\0')
return NULL;
hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1;
if (hdrptr >= end)
return NULL;
- diridx = read_uleb128 (hdrptr, &bytes_read, end);
+ READ_ULEB (diridx, hdrptr, end);
if (diridx == 0)
return file_name;
for (; dirtable < end && *dirtable != '\0' && diridx > 1; diridx--)
unsigned char *end = start + section->size;
unsigned char *curr = start;
unsigned char *extended_op_buf[256];
- unsigned int bytes_read;
+ bool is_dwo = false;
+ const char *suffix = strrchr (section->name, '.');
- load_debug_section (str, file);
- load_debug_section (line, file);
+ if (suffix && strcmp (suffix, ".dwo") == 0)
+ is_dwo = true;
- printf (_("Contents of the %s section:\n\n"), section->name);
+ load_debug_section_with_follow (str, file);
+ load_debug_section_with_follow (line, file);
+ load_debug_section_with_follow (str_index, file);
+
+ introduce (section, false);
while (curr < end)
{
unsigned int lineno, version, flags;
- unsigned int offset_size = 4;
+ unsigned int offset_size;
const unsigned char *string;
dwarf_vma line_offset = 0, sec_offset = curr - start, offset;
unsigned char **extended_ops = NULL;
SAFE_BYTE_GET_AND_INC (version, curr, 2, end);
if (version != 4 && version != 5)
{
- error (_("Only GNU extension to DWARF 4 or 5 of %s is currently supported.\n"),
- section->name);
+ error (_("Expected to find a version number of 4 or 5 in section %s but found %d instead\n"),
+ section->name, version);
return 0;
}
SAFE_BYTE_GET_AND_INC (flags, curr, 1, end);
- if (flags & 1)
- offset_size = 8;
+ offset_size = (flags & 1) ? 8 : 4;
printf (_(" Offset: 0x%lx\n"),
(unsigned long) sec_offset);
printf (_(" Version: %d\n"), version);
{
SAFE_BYTE_GET_AND_INC (op, curr, 1, end);
extended_ops[op] = curr;
- nargs = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
+ READ_ULEB (nargs, curr, end);
if (nargs == 0)
printf (_(" DW_MACRO_%02x has no arguments\n"), op);
else
switch (op)
{
+ case DW_MACRO_define:
+ READ_ULEB (lineno, curr, end);
+ string = curr;
+ curr += strnlen ((char *) string, end - string) + 1;
+ printf (_(" DW_MACRO_define - lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
+ case DW_MACRO_undef:
+ READ_ULEB (lineno, curr, end);
+ string = curr;
+ curr += strnlen ((char *) string, end - string) + 1;
+ printf (_(" DW_MACRO_undef - lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
case DW_MACRO_start_file:
{
unsigned int filenum;
unsigned char *file_name = NULL, *dir_name = NULL;
- lineno = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
- filenum = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
+ READ_ULEB (lineno, curr, end);
+ READ_ULEB (filenum, curr, end);
if ((flags & 2) == 0)
error (_("DW_MACRO_start_file used, but no .debug_line offset provided.\n"));
printf (_(" DW_MACRO_end_file\n"));
break;
- case DW_MACRO_define:
- lineno = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
- string = curr;
- curr += strnlen ((char *) string, end - string) + 1;
- printf (_(" DW_MACRO_define - lineno : %d macro : %s\n"),
- lineno, string);
- break;
-
- case DW_MACRO_undef:
- lineno = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
- string = curr;
- curr += strnlen ((char *) string, end - string) + 1;
- printf (_(" DW_MACRO_undef - lineno : %d macro : %s\n"),
- lineno, string);
- break;
-
case DW_MACRO_define_strp:
- lineno = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
- SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
+ READ_ULEB (lineno, curr, end);
+ if (version == 4 && is_dwo)
+ READ_ULEB (offset, curr, end);
+ else
+ SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
string = fetch_indirect_string (offset);
printf (_(" DW_MACRO_define_strp - lineno : %d macro : %s\n"),
lineno, string);
break;
case DW_MACRO_undef_strp:
- lineno = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
- SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
+ READ_ULEB (lineno, curr, end);
+ if (version == 4 && is_dwo)
+ READ_ULEB (offset, curr, end);
+ else
+ SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
string = fetch_indirect_string (offset);
printf (_(" DW_MACRO_undef_strp - lineno : %d macro : %s\n"),
lineno, string);
break;
case DW_MACRO_define_sup:
- lineno = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
+ READ_ULEB (lineno, curr, end);
SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
printf (_(" DW_MACRO_define_sup - lineno : %d macro offset : 0x%lx\n"),
lineno, (unsigned long) offset);
break;
case DW_MACRO_undef_sup:
- lineno = read_uleb128 (curr, &bytes_read, end);
- curr += bytes_read;
+ READ_ULEB (lineno, curr, end);
SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
printf (_(" DW_MACRO_undef_sup - lineno : %d macro offset : 0x%lx\n"),
lineno, (unsigned long) offset);
(unsigned long) offset);
break;
+ case DW_MACRO_define_strx:
+ case DW_MACRO_undef_strx:
+ READ_ULEB (lineno, curr, end);
+ READ_ULEB (offset, curr, end);
+ string = (const unsigned char *)
+ fetch_indexed_string (offset, NULL, offset_size, false);
+ if (op == DW_MACRO_define_strx)
+ printf (" DW_MACRO_define_strx ");
+ else
+ printf (" DW_MACRO_undef_strx ");
+ if (do_wide)
+ printf (_("(with offset %s) "), dwarf_vmatoa ("x", offset));
+ printf (_("lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
default:
+ if (op >= DW_MACRO_lo_user && op <= DW_MACRO_hi_user)
+ {
+ printf (_(" <Target Specific macro op: %#x - UNHANDLED"), op);
+ break;
+ }
+
if (extended_ops == NULL || extended_ops[op] == NULL)
{
error (_(" Unknown macro opcode %02x seen\n"), op);
/* Skip over unhandled opcodes. */
dwarf_vma nargs, n;
unsigned char *desc = extended_ops[op];
- nargs = read_uleb128 (desc, &bytes_read, end);
- desc += bytes_read;
+ READ_ULEB (nargs, desc, end);
if (nargs == 0)
{
printf (_(" DW_MACRO_%02x\n"), op);
SAFE_BYTE_GET_AND_INC (val, desc, 1, end);
curr
= read_and_display_attr_value (0, val, 0,
- curr, end, 0, 0, offset_size,
+ start, curr, end, 0, 0, offset_size,
version, NULL, 0, NULL,
- NULL, ' ');
+ NULL, ' ', -1);
if (n != nargs - 1)
printf (",");
}
{
abbrev_entry *entry;
unsigned char *start = section->start;
- unsigned char *end = start + section->size;
+ const unsigned char *end = start + section->size;
- printf (_("Contents of the %s section:\n\n"), section->name);
+ introduce (section, false);
do
{
- unsigned char *last;
-
- free_abbrevs ();
+ abbrev_list * list;
+ dwarf_vma offset;
- last = start;
- start = process_abbrev_section (start, end);
+ offset = start - section->start;
+ list = find_abbrev_list_by_abbrev_offset (0, offset);
+ if (list == NULL)
+ {
+ list = new_abbrev_list (0, offset);
+ start = process_abbrev_set (start, end, list);
+ list->start_of_next_abbrevs = start;
+ }
+ else
+ start = list->start_of_next_abbrevs;
- if (first_abbrev == NULL)
+ if (list->first_abbrev == NULL)
continue;
- printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start));
+ printf (_(" Number TAG (0x%lx)\n"), (long) offset);
- for (entry = first_abbrev; entry; entry = entry->next)
+ for (entry = list->first_abbrev; entry; entry = entry->next)
{
abbrev_attr *attr;
printf (" %ld %s [%s]\n",
- entry->entry,
+ entry->number,
get_TAG_name (entry->tag),
entry->children ? _("has children") : _("no children"));
/* Return true when ADDR is the maximum address, when addresses are
POINTER_SIZE bytes long. */
-static bfd_boolean
+static bool
is_max_address (dwarf_vma addr, unsigned int pointer_size)
{
dwarf_vma mask = ~(~(dwarf_vma) 1 << (pointer_size * 8 - 1));
dwarf_vma off = vstart - section->start;
dwarf_vma vbegin, vend;
- unsigned int bytes_read;
- vbegin = read_uleb128 (vstart, &bytes_read, section_end);
- vstart += bytes_read;
+ READ_ULEB (vbegin, vstart, section_end);
if (vstart == section_end)
- {
- vstart -= bytes_read;
- break;
- }
-
- vend = read_uleb128 (vstart, &bytes_read, section_end);
- vstart += bytes_read;
+ break;
+ READ_ULEB (vend, vstart, section_end);
printf (" %8.8lx ", (unsigned long) off);
print_dwarf_view (vbegin, pointer_size, 1);
if (vstart)
{
- unsigned int bytes_read;
-
off = offset + (vstart - *start_ptr);
- vbegin = read_uleb128 (vstart, &bytes_read, section_end);
- vstart += bytes_read;
+ READ_ULEB (vbegin, vstart, section_end);
print_dwarf_view (vbegin, pointer_size, 1);
- vend = read_uleb128 (vstart, &bytes_read, section_end);
- vstart += bytes_read;
+ READ_ULEB (vend, vstart, section_end);
print_dwarf_view (vend, pointer_size, 1);
printf (_("views at %8.8lx for:\n %*s "),
unsigned int pointer_size;
unsigned int offset_size;
int dwarf_version;
- unsigned int bytes_read;
/* Initialize it due to a false compiler warning. */
dwarf_vma begin = -1, vbegin = -1;
SAFE_BYTE_GET_AND_INC (llet, start, 1, section_end);
- if (vstart && llet == DW_LLE_offset_pair)
+ if (vstart && (llet == DW_LLE_offset_pair
+ || llet == DW_LLE_start_end
+ || llet == DW_LLE_start_length))
{
off = offset + (vstart - *start_ptr);
- vbegin = read_uleb128 (vstart, &bytes_read, section_end);
- vstart += bytes_read;
+ READ_ULEB (vbegin, vstart, section_end);
print_dwarf_view (vbegin, pointer_size, 1);
- vend = read_uleb128 (vstart, &bytes_read, section_end);
- vstart += bytes_read;
+ READ_ULEB (vend, vstart, section_end);
print_dwarf_view (vend, pointer_size, 1);
printf (_("views at %8.8lx for:\n %*s "),
printf (_("<End of list>\n"));
break;
case DW_LLE_offset_pair:
- begin = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
- end = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
+ READ_ULEB (begin, start, section_end);
+ begin += base_address;
+ READ_ULEB (end, start, section_end);
+ end += base_address;
+ break;
+ case DW_LLE_start_end:
+ SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end);
+ SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end);
+ break;
+ case DW_LLE_start_length:
+ SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end);
+ READ_ULEB (end, start, section_end);
+ end += begin;
break;
case DW_LLE_base_address:
SAFE_BYTE_GET_AND_INC (base_address, start, pointer_size,
case DW_LLE_view_pair:
if (vstart)
printf (_("View pair entry in loclist with locviews attribute\n"));
- vbegin = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
+ READ_ULEB (vbegin, start, section_end);
print_dwarf_view (vbegin, pointer_size, 1);
- vend = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
+ READ_ULEB (vend, start, section_end);
print_dwarf_view (vend, pointer_size, 1);
printf (_("views for:\n"));
}
if (llet == DW_LLE_end_of_list)
break;
- if (llet != DW_LLE_offset_pair)
+ if (llet != DW_LLE_offset_pair
+ && llet != DW_LLE_start_end
+ && llet != DW_LLE_start_length)
continue;
if (start + 2 > section_end)
break;
}
- length = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
+ READ_ULEB (length, start, section_end);
- print_dwarf_vma (begin + base_address, pointer_size);
- print_dwarf_vma (end + base_address, pointer_size);
+ print_dwarf_vma (begin, pointer_size);
+ print_dwarf_vma (end, pointer_size);
putchar ('(');
need_frame_base = decode_location_expression (start,
unsigned short length;
int need_frame_base;
unsigned int idx;
- unsigned int bytes_read;
if (debug_info_entry >= num_debug_info_entries)
{
dwarf_vma view;
dwarf_vma off = offset + (vstart - *start_ptr);
- view = read_uleb128 (vstart, &bytes_read, section_end);
- vstart += bytes_read;
+ READ_ULEB (view, vstart, section_end);
print_dwarf_view (view, 8, 1);
- view = read_uleb128 (vstart, &bytes_read, section_end);
- vstart += bytes_read;
+ READ_ULEB (view, vstart, section_end);
print_dwarf_view (view, 8, 1);
printf (_("views at %8.8lx for:\n %*s "),
printf (_("<End of list>\n"));
return;
case 1: /* A base-address entry. */
- idx = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
+ READ_ULEB (idx, start, section_end);
print_addr_index (idx, 8);
printf ("%*s", 9 + (vstart ? 2 * 6 : 0), "");
printf (_("(base address selection entry)\n"));
continue;
case 2: /* A start/end entry. */
- idx = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
+ READ_ULEB (idx, start, section_end);
print_addr_index (idx, 8);
- idx = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
+ READ_ULEB (idx, start, section_end);
print_addr_index (idx, 8);
break;
case 3: /* A start/length entry. */
- idx = read_uleb128 (start, &bytes_read, section_end);
- start += bytes_read;
+ READ_ULEB (idx, start, section_end);
print_addr_index (idx, 8);
SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end);
printf ("%08x ", idx);
unsigned char *next = start, *vnext = vstart;
unsigned int *array = NULL;
const char *suffix = strrchr (section->name, '.');
- int is_dwo = 0;
+ bool is_dwo = false;
int is_loclists = strstr (section->name, "debug_loclists") != NULL;
dwarf_vma expected_start = 0;
if (suffix && strcmp (suffix, ".dwo") == 0)
- is_dwo = 1;
+ is_dwo = true;
bytes = section->size;
if (!locs_sorted)
array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int));
- printf (_("Contents of the %s section:\n\n"), section->name);
+
+ introduce (section, false);
+
if (reloc_at (section, 0))
printf (_(" Warning: This section has relocations - addresses seen here may not be accurate.\n\n"));
+
printf (_(" Offset Begin End Expression\n"));
seen_first_offset = 0;
}
if (start < section->start + section->size)
- warn (_("There are %ld unused bytes at the end of section %s\n"),
+ warn (ngettext ("There is %ld unused byte at the end of section %s\n",
+ "There are %ld unused bytes at the end of section %s\n",
+ (long) (section->start + section->size - start)),
(long) (section->start + section->size - start), section->name);
putchar ('\n');
free (array);
return 0;
}
- printf (_("Contents of the %s section:\n\n"), section->name);
+ introduce (section, false);
while (bytes)
{
static int
display_debug_info (struct dwarf_section *section, void *file)
{
- return process_debug_info (section, file, section->abbrev_sec, 0, 0);
+ return process_debug_info (section, file, section->abbrev_sec, false, false);
}
static int
display_debug_types (struct dwarf_section *section, void *file)
{
- return process_debug_info (section, file, section->abbrev_sec, 0, 1);
+ return process_debug_info (section, file, section->abbrev_sec, false, true);
}
static int
display_trace_info (struct dwarf_section *section, void *file)
{
- return process_debug_info (section, file, section->abbrev_sec, 0, 0);
+ return process_debug_info (section, file, section->abbrev_sec, false, true);
}
static int
unsigned char *start = section->start;
unsigned char *end = start + section->size;
- printf (_("Contents of the %s section:\n\n"), section->name);
+ introduce (section, false);
/* It does not matter if this load fails,
we test for that later on. */
static int
comp_addr_base (const void * v0, const void * v1)
{
- debug_info * info0 = (debug_info *) v0;
- debug_info * info1 = (debug_info *) v1;
+ debug_info *info0 = *(debug_info **) v0;
+ debug_info *info1 = *(debug_info **) v1;
return info0->addr_base - info1->addr_base;
}
unsigned char *end;
unsigned int i;
unsigned int count;
+ unsigned char * header;
if (section->size == 0)
{
return 0;
}
- printf (_("Contents of the %s section:\n\n"), section->name);
+ introduce (section, false);
/* PR 17531: file: cf38d01b.
We use xcalloc because a corrupt file may not have initialised all of the
debug_addr_info [count]->addr_base = section->size;
qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base);
+ header = section->start;
for (i = 0; i < count; i++)
{
unsigned int idx;
printf (_(" For compilation unit at offset 0x%s:\n"),
dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset));
- printf (_("\tIndex\tAddress\n"));
- entry = section->start + debug_addr_info [i]->addr_base;
- end = section->start + debug_addr_info [i + 1]->addr_base;
+ printf (_("\tIndex\tAddress\n"));
+ entry = section->start + debug_addr_info [i]->addr_base;
+ if (debug_addr_info [i]->dwarf_version >= 5)
+ {
+ size_t header_size = entry - header;
+ unsigned char * curr_header = header;
+ dwarf_vma length;
+ int version;
+ int segment_selector_size;
+
+ if (header_size != 8 && header_size != 16)
+ {
+ warn (_("Corrupt %s section: expecting header size of 8 or 16, but found %ld instead\n"),
+ section->name, (long) header_size);
+ return 0;
+ }
+
+ SAFE_BYTE_GET_AND_INC (length, curr_header, 4, entry);
+ if (length == 0xffffffff)
+ SAFE_BYTE_GET (length, curr_header, 8, entry);
+ end = curr_header + length;
+
+ SAFE_BYTE_GET_AND_INC (version, curr_header, 2, entry);
+ if (version != 5)
+ warn (_("Corrupt %s section: expecting version number 5 in header but found %d instead\n"),
+ section->name, version);
+
+ SAFE_BYTE_GET_AND_INC (address_size, curr_header, 1, entry);
+ SAFE_BYTE_GET_AND_INC (segment_selector_size, curr_header, 1, entry);
+ address_size += segment_selector_size;
+ }
+ else
+ end = section->start + debug_addr_info [i + 1]->addr_base;
+ header = end;
idx = 0;
while (entry < end)
{
}
/* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */
+
static int
display_debug_str_offsets (struct dwarf_section *section,
void *file ATTRIBUTE_UNUSED)
{
+ unsigned long idx;
+
if (section->size == 0)
{
printf (_("\nThe %s section is empty.\n"), section->name);
return 0;
}
- /* TODO: Dump the contents. This is made somewhat difficult by not knowing
- what the offset size is for this section. */
+
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
+ unsigned char *curr = start;
+
+ const char *suffix = strrchr (section->name, '.');
+ bool dwo = suffix && strcmp (suffix, ".dwo") == 0;
+
+ if (dwo)
+ load_debug_section_with_follow (str_dwo, file);
+ else
+ load_debug_section_with_follow (str, file);
+
+ introduce (section, false);
+
+ while (curr < end)
+ {
+ dwarf_vma length;
+ dwarf_vma entry_length;
+
+ SAFE_BYTE_GET_AND_INC (length, curr, 4, end);
+ /* FIXME: We assume that this means 64-bit DWARF is being used. */
+ if (length == 0xffffffff)
+ {
+ SAFE_BYTE_GET (length, curr, 8, end);
+ entry_length = 8;
+ }
+ else
+ entry_length = 4;
+
+ unsigned char *entries_end;
+ if (length == 0)
+ {
+ /* This is probably an old style .debug_str_offset section which
+ just contains offsets and no header (and the first offset is 0). */
+ length = section->size;
+ curr = section->start;
+ entries_end = end;
+
+ printf (_(" Length: %#lx\n"), (unsigned long) length);
+ printf (_(" Index Offset [String]\n"));
+ }
+ else
+ {
+ entries_end = curr + length;
+
+ int version;
+ SAFE_BYTE_GET_AND_INC (version, curr, 2, end);
+ if (version != 5)
+ warn (_("Unexpected version number in str_offset header: %#x\n"), version);
+
+ int padding;
+ SAFE_BYTE_GET_AND_INC (padding, curr, 2, end);
+ if (padding != 0)
+ warn (_("Unexpected value in str_offset header's padding field: %#x\n"), padding);
+
+ printf (_(" Length: %#lx\n"), (unsigned long) length);
+ printf (_(" Version: %#lx\n"), (unsigned long) version);
+ printf (_(" Index Offset [String]\n"));
+ }
+
+ for (idx = 0; curr < entries_end; idx++)
+ {
+ dwarf_vma offset;
+ const unsigned char * string;
+
+ if (curr + entry_length > entries_end)
+ /* Not enough space to read one entry_length, give up. */
+ return 0;
+
+ SAFE_BYTE_GET_AND_INC (offset, curr, entry_length, end);
+ if (dwo)
+ string = (const unsigned char *)
+ fetch_indexed_string (idx, NULL, entry_length, dwo);
+ else
+ string = fetch_indirect_string (offset);
+
+ printf (" %8lu %8s %s\n", idx, dwarf_vmatoa ("x", offset),
+ string);
+ }
+ }
+
return 1;
}
enum dwarf_range_list_entry rlet;
/* Initialize it due to a false compiler warning. */
dwarf_vma begin = -1, length, end = -1;
- unsigned int bytes_read;
if (start + 1 > finish)
{
break;
case DW_RLE_start_length:
SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish);
- length = read_uleb128 (start, &bytes_read, finish);
- start += bytes_read;
+ READ_ULEB (length, start, finish);
end = begin + length;
break;
case DW_RLE_offset_pair:
- begin = read_uleb128 (start, &bytes_read, finish);
- start += bytes_read;
- end = read_uleb128 (start, &bytes_read, finish);
- start += bytes_read;
+ READ_ULEB (begin, start, finish);
+ READ_ULEB (end, start, finish);
break;
case DW_RLE_start_end:
SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish);
if (rlet == DW_RLE_base_address)
continue;
- print_dwarf_vma (begin + base_address, pointer_size);
- print_dwarf_vma (end + base_address, pointer_size);
+ /* Only a DW_RLE_offset_pair needs the base address added. */
+ if (rlet == DW_RLE_offset_pair)
+ {
+ begin += base_address;
+ end += base_address;
+ }
+
+ print_dwarf_vma (begin, pointer_size);
+ print_dwarf_vma (end, pointer_size);
if (begin == end)
fputs (_("(start == end)"), stdout);
int is_rnglists = strstr (section->name, "debug_rnglists") != NULL;
/* Initialize it due to a false compiler warning. */
unsigned char address_size = 0;
+ dwarf_vma last_offset = 0;
if (bytes == 0)
{
num_range_list = 0;
for (i = 0; i < num_debug_info_entries; i++)
- num_range_list += debug_information [i].num_range_lists;
+ {
+ if (debug_information [i].dwarf_version < 5 && is_rnglists)
+ /* Skip .debug_rnglists reference. */
+ continue;
+ if (debug_information [i].dwarf_version >= 5 && !is_rnglists)
+ /* Skip .debug_range reference. */
+ continue;
+ num_range_list += debug_information [i].num_range_lists;
+ }
if (num_range_list == 0)
{
debug_info *debug_info_p = &debug_information[i];
unsigned int j;
+ if (debug_information [i].dwarf_version < 5 && is_rnglists)
+ /* Skip .debug_rnglists reference. */
+ continue;
+ if (debug_information [i].dwarf_version >= 5 && !is_rnglists)
+ /* Skip .debug_range reference. */
+ continue;
+
for (j = 0; j < debug_info_p->num_range_lists; j++)
{
range_entry_fill->ranges_offset = debug_info_p->range_lists[j];
warn (_("Range lists in %s section start at 0x%lx\n"),
section->name, (unsigned long) range_entries[0].ranges_offset);
- printf (_("Contents of the %s section:\n\n"), section->name);
+ introduce (section, false);
+
printf (_(" Offset Begin End\n"));
for (i = 0; i < num_range_list; i++)
continue;
}
+ if (next < section_begin || next >= finish)
+ {
+ warn (_("Corrupt offset (%#8.8lx) in range entry %u\n"),
+ (unsigned long) offset, i);
+ continue;
+ }
+
+ /* If multiple DWARF entities reference the same range then we will
+ have multiple entries in the `range_entries' list for the same
+ offset. Thanks to the sort above these will all be consecutive in
+ the `range_entries' list, so we can easily ignore duplicates
+ here. */
+ if (i > 0 && last_offset == offset)
+ continue;
+ last_offset = offset;
+
if (dwarf_check != 0 && i > 0)
{
if (start < next)
(unsigned long) (next - section_begin), section->name);
}
}
+
start = next;
last_start = next;
int data_factor;
dwarf_vma pc_begin;
dwarf_vma pc_range;
- int cfa_reg;
+ unsigned int cfa_reg;
dwarf_vma cfa_offset;
unsigned int ra;
unsigned char fde_encoding;
}
Frame_Chunk;
+typedef const char *(*dwarf_regname_lookup_ftype) (unsigned int);
+static dwarf_regname_lookup_ftype dwarf_regnames_lookup_func;
static const char *const *dwarf_regnames;
static unsigned int dwarf_regnames_count;
+
/* A marker for a col_type that means this column was never referenced
in the frame info. */
#define DW_CFA_unreferenced (-1)
if (reg < (unsigned int) fc->ncols)
return 0;
- if (dwarf_regnames_count
+ if (dwarf_regnames_count > 0
&& reg > dwarf_regnames_count)
return -1;
return -1;
/* PR 17512: file: 2844a11d. */
- if (fc->ncols > 1024)
+ if (fc->ncols > 1024 && dwarf_regnames_count == 0)
{
error (_("Unfeasibly large register number: %u\n"), reg);
fc->ncols = 0;
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL /* 93 - 100 */
};
-void
+static void
init_dwarf_regnames_i386 (void)
{
dwarf_regnames = dwarf_regnames_i386;
dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386);
+ dwarf_regnames_lookup_func = regname_internal_by_table_only;
}
-void
+static void
init_dwarf_regnames_iamcu (void)
{
dwarf_regnames = dwarf_regnames_iamcu;
dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_iamcu);
+ dwarf_regnames_lookup_func = regname_internal_by_table_only;
}
static const char *const dwarf_regnames_x86_64[] =
"k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7"
};
-void
+static void
init_dwarf_regnames_x86_64 (void)
{
dwarf_regnames = dwarf_regnames_x86_64;
dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64);
+ dwarf_regnames_lookup_func = regname_internal_by_table_only;
}
static const char *const dwarf_regnames_aarch64[] =
"x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
"x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp",
NULL, "elr", NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, "vg", "ffr",
+ "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7",
+ "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15",
"v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
"v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15",
"v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",
"v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31",
+ "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7",
+ "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15",
+ "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23",
+ "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31",
};
-void
+static void
init_dwarf_regnames_aarch64 (void)
{
dwarf_regnames = dwarf_regnames_aarch64;
dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_aarch64);
+ dwarf_regnames_lookup_func = regname_internal_by_table_only;
}
static const char *const dwarf_regnames_s390[] =
"v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31",
};
-void
+static void
init_dwarf_regnames_s390 (void)
{
dwarf_regnames = dwarf_regnames_s390;
dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_s390);
+ dwarf_regnames_lookup_func = regname_internal_by_table_only;
+}
+
+static const char *const dwarf_regnames_riscv[] =
+{
+ "zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", /* 0 - 7 */
+ "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", /* 8 - 15 */
+ "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", /* 16 - 23 */
+ "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", /* 24 - 31 */
+ "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", /* 32 - 39 */
+ "fs0", "fs1", /* 40 - 41 */
+ "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", "fa6", "fa7", /* 42 - 49 */
+ "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", "fs8", "fs9", /* 50 - 57 */
+ "fs10", "fs11", /* 58 - 59 */
+ "ft8", "ft9", "ft10", "ft11" /* 60 - 63 */
+};
+
+/* A RISC-V replacement for REGNAME_INTERNAL_BY_TABLE_ONLY which handles
+ the large number of CSRs. */
+
+static const char *
+regname_internal_riscv (unsigned int regno)
+{
+ const char *name = NULL;
+
+ /* Lookup in the table first, this covers GPR and FPR. */
+ if (regno < ARRAY_SIZE (dwarf_regnames_riscv))
+ name = dwarf_regnames_riscv [regno];
+ else if (regno >= 4096 && regno <= 8191)
+ {
+ /* This might be a CSR, these live in a sparse number space from 4096
+ to 8191 These numbers are defined in the RISC-V ELF ABI
+ document. */
+ switch (regno)
+ {
+#define DECLARE_CSR(NAME,VALUE,CLASS,DEFINE_VER,ABORT_VER) \
+ case VALUE + 4096: name = #NAME; break;
+#include "opcode/riscv-opc.h"
+#undef DECLARE_CSR
+
+ default:
+ {
+ static char csr_name[10];
+ snprintf (csr_name, sizeof (csr_name), "csr%d", (regno - 4096));
+ name = csr_name;
+ }
+ break;
+ }
+ }
+
+ return name;
+}
+
+static void
+init_dwarf_regnames_riscv (void)
+{
+ dwarf_regnames = NULL;
+ dwarf_regnames_count = 8192;
+ dwarf_regnames_lookup_func = regname_internal_riscv;
}
void
-init_dwarf_regnames (unsigned int e_machine)
+init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine)
{
+ dwarf_regnames_lookup_func = NULL;
+
switch (e_machine)
{
case EM_386:
init_dwarf_regnames_s390 ();
break;
+ case EM_RISCV:
+ init_dwarf_regnames_riscv ();
+ break;
+
default:
break;
}
}
-static const char *
-regname (unsigned int regno, int row)
+/* Initialize the DWARF register name lookup state based on the
+ architecture and specific machine type of a BFD. */
+
+void
+init_dwarf_regnames_by_bfd_arch_and_mach (enum bfd_architecture arch,
+ unsigned long mach)
{
- static char reg[64];
+ dwarf_regnames_lookup_func = NULL;
+
+ switch (arch)
+ {
+ case bfd_arch_i386:
+ switch (mach)
+ {
+ case bfd_mach_x86_64:
+ case bfd_mach_x86_64_intel_syntax:
+ case bfd_mach_x64_32:
+ case bfd_mach_x64_32_intel_syntax:
+ init_dwarf_regnames_x86_64 ();
+ break;
+
+ default:
+ init_dwarf_regnames_i386 ();
+ break;
+ }
+ break;
+
+ case bfd_arch_iamcu:
+ init_dwarf_regnames_iamcu ();
+ break;
+
+ case bfd_arch_aarch64:
+ init_dwarf_regnames_aarch64();
+ break;
+
+ case bfd_arch_s390:
+ init_dwarf_regnames_s390 ();
+ break;
+
+ case bfd_arch_riscv:
+ init_dwarf_regnames_riscv ();
+ break;
- if (dwarf_regnames
+ default:
+ break;
+ }
+}
+
+static const char *
+regname_internal_by_table_only (unsigned int regno)
+{
+ if (dwarf_regnames != NULL
&& regno < dwarf_regnames_count
&& dwarf_regnames [regno] != NULL)
+ return dwarf_regnames [regno];
+
+ return NULL;
+}
+
+static const char *
+regname (unsigned int regno, int name_only_p)
+{
+ static char reg[64];
+
+ const char *name = NULL;
+
+ if (dwarf_regnames_lookup_func != NULL)
+ name = dwarf_regnames_lookup_func (regno);
+
+ if (name != NULL)
{
- if (row)
- return dwarf_regnames [regno];
- snprintf (reg, sizeof (reg), "r%d (%s)", regno,
- dwarf_regnames [regno]);
+ if (name_only_p)
+ return name;
+ snprintf (reg, sizeof (reg), "r%d (%s)", regno, name);
}
else
snprintf (reg, sizeof (reg), "r%d", regno);
if (*need_col_headers)
{
- static const char *sloc = " LOC";
-
*need_col_headers = 0;
- printf ("%-*s CFA ", eh_addr_size * 2, sloc);
+ printf ("%-*s CFA ", eh_addr_size * 2, " LOC");
for (r = 0; r < *max_regs; r++)
if (fc->col_type[r] != DW_CFA_unreferenced)
static unsigned char *
read_cie (unsigned char *start, unsigned char *end,
Frame_Chunk **p_cie, int *p_version,
- unsigned long *p_aug_len, unsigned char **p_aug)
+ bfd_size_type *p_aug_len, unsigned char **p_aug)
{
int version;
Frame_Chunk *fc;
- unsigned int length_return;
unsigned char *augmentation_data = NULL;
- unsigned long augmentation_data_len = 0;
+ bfd_size_type augmentation_data_len = 0;
* p_cie = NULL;
/* PR 17512: file: 001-228113-0.004. */
if (start == end)
{
warn (_("No terminator for augmentation name\n"));
- return start;
+ goto fail;
}
if (strcmp (fc->augmentation, "eh") == 0)
if (fc->ptr_size < 1 || fc->ptr_size > 8)
{
warn (_("Invalid pointer size (%d) in CIE data\n"), fc->ptr_size);
- return end;
+ goto fail;
}
GET (fc->segment_size, 1);
if (fc->segment_size > 8 || fc->segment_size + fc->ptr_size > 8)
{
warn (_("Invalid segment size (%d) in CIE data\n"), fc->segment_size);
- return end;
+ goto fail;
}
eh_addr_size = fc->ptr_size;
fc->ptr_size = eh_addr_size;
fc->segment_size = 0;
}
- READ_ULEB (fc->code_factor);
- READ_SLEB (fc->data_factor);
+
+ READ_ULEB (fc->code_factor, start, end);
+ READ_SLEB (fc->data_factor, start, end);
+
if (version == 1)
{
GET (fc->ra, 1);
}
else
{
- READ_ULEB (fc->ra);
+ READ_ULEB (fc->ra, start, end);
}
if (fc->augmentation[0] == 'z')
{
- READ_ULEB (augmentation_data_len);
+ READ_ULEB (augmentation_data_len, start, end);
augmentation_data = start;
/* PR 17512: file: 11042-2589-0.004. */
- if (augmentation_data_len > (size_t) (end - start))
+ if (augmentation_data_len > (bfd_size_type) (end - start))
{
- warn (_("Augmentation data too long: %#lx, expected at most %#lx\n"),
- augmentation_data_len, (unsigned long) (end - start));
- return end;
+ warn (_("Augmentation data too long: 0x%s, expected at most %#lx\n"),
+ dwarf_vmatoa ("x", augmentation_data_len),
+ (unsigned long) (end - start));
+ goto fail;
}
start += augmentation_data_len;
}
fc->fde_encoding = *q++;
else if (*p == 'S')
;
+ else if (*p == 'B')
+ ;
else
break;
p++;
*p_aug = augmentation_data;
}
return start;
+
+ fail:
+ free (fc->col_offset);
+ free (fc->col_type);
+ free (fc);
+ return end;
+}
+
+/* Prints out the contents on the DATA array formatted as unsigned bytes.
+ If do_wide is not enabled, then formats the output to fit into 80 columns.
+ PRINTED contains the number of characters already written to the current
+ output line. */
+
+static void
+display_data (bfd_size_type printed,
+ const unsigned char * data,
+ const bfd_size_type len)
+{
+ if (do_wide || len < ((80 - printed) / 3))
+ for (printed = 0; printed < len; ++printed)
+ printf (" %02x", data[printed]);
+ else
+ {
+ for (printed = 0; printed < len; ++printed)
+ {
+ if (printed % (80 / 3) == 0)
+ putchar ('\n');
+ printf (" %02x", data[printed]);
+ }
+ }
+}
+
+/* Prints out the contents on the augmentation data array.
+ If do_wide is not enabled, then formats the output to fit into 80 columns. */
+
+static void
+display_augmentation_data (const unsigned char * data, const bfd_size_type len)
+{
+ bfd_size_type i;
+
+ i = printf (_(" Augmentation data: "));
+ display_data (i, data, len);
}
static int
unsigned char *start = section->start;
unsigned char *end = start + section->size;
unsigned char *section_start = start;
- Frame_Chunk *chunks = 0, *forward_refs = 0;
- Frame_Chunk *remembered_state = 0;
+ Frame_Chunk *chunks = NULL, *forward_refs = NULL;
+ Frame_Chunk *remembered_state = NULL;
Frame_Chunk *rs;
- int is_eh = strcmp (section->name, ".eh_frame") == 0;
- unsigned int length_return;
+ bool is_eh = strcmp (section->name, ".eh_frame") == 0;
unsigned int max_regs = 0;
const char *bad_reg = _("bad register: ");
unsigned int saved_eh_addr_size = eh_addr_size;
- printf (_("Contents of the %s section:\n"), section->name);
+ introduce (section, false);
while (start < end)
{
Frame_Chunk *cie;
int need_col_headers = 1;
unsigned char *augmentation_data = NULL;
- unsigned long augmentation_data_len = 0;
+ bfd_size_type augmentation_data_len = 0;
unsigned int encoded_ptr_size = saved_eh_addr_size;
unsigned int offset_size;
unsigned int initial_length_size;
- bfd_boolean all_nops;
+ bool all_nops;
+ static Frame_Chunk fde_fc;
saved_start = start;
printf (" Return address column: %d\n", fc->ra);
if (augmentation_data_len)
- {
- unsigned long i;
+ display_augmentation_data (augmentation_data, augmentation_data_len);
- printf (" Augmentation data: ");
- for (i = 0; i < augmentation_data_len; ++i)
- /* FIXME: If do_wide is FALSE, then we should
- add carriage returns at 80 columns... */
- printf (" %02x", augmentation_data[i]);
- putchar ('\n');
- }
putchar ('\n');
}
}
else
{
unsigned char *look_for;
- static Frame_Chunk fde_fc;
unsigned long segment_selector;
if (is_eh)
if (cie->augmentation[0] == 'z')
{
- READ_ULEB (augmentation_data_len);
+ READ_ULEB (augmentation_data_len, start, end);
augmentation_data = start;
- start += augmentation_data_len;
- /* PR 17512: file: 722-8446-0.004. */
- if (start >= end || ((signed long) augmentation_data_len) < 0)
+ /* PR 17512 file: 722-8446-0.004 and PR 22386. */
+ if (augmentation_data_len > (bfd_size_type) (end - start))
{
- warn (_("Corrupt augmentation data length: %lx\n"),
- augmentation_data_len);
+ warn (_("Augmentation data too long: 0x%s, "
+ "expected at most %#lx\n"),
+ dwarf_vmatoa ("x", augmentation_data_len),
+ (unsigned long) (end - start));
start = end;
augmentation_data = NULL;
augmentation_data_len = 0;
}
+ start += augmentation_data_len;
}
printf ("\n%08lx %s %s FDE cie=%08lx pc=",
if (! do_debug_frames_interp && augmentation_data_len)
{
- unsigned long i;
-
- printf (" Augmentation data: ");
- for (i = 0; i < augmentation_data_len; ++i)
- printf (" %02x", augmentation_data[i]);
- putchar ('\n');
+ display_augmentation_data (augmentation_data, augmentation_data_len);
putchar ('\n');
}
}
case DW_CFA_advance_loc:
break;
case DW_CFA_offset:
- SKIP_ULEB ();
+ SKIP_ULEB (start, end);
if (frame_need_space (fc, opa) >= 0)
fc->col_type[opa] = DW_CFA_undefined;
break;
break;
case DW_CFA_offset_extended:
case DW_CFA_val_offset:
- READ_ULEB (reg);
- SKIP_ULEB ();
+ READ_ULEB (reg, start, end);
+ SKIP_ULEB (start, end);
if (frame_need_space (fc, reg) >= 0)
fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_restore_extended:
- READ_ULEB (reg);
+ READ_ULEB (reg, start, end);
if (frame_need_space (fc, reg) >= 0)
fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_undefined:
- READ_ULEB (reg);
+ READ_ULEB (reg, start, end);
if (frame_need_space (fc, reg) >= 0)
fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_same_value:
- READ_ULEB (reg);
+ READ_ULEB (reg, start, end);
if (frame_need_space (fc, reg) >= 0)
fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_register:
- READ_ULEB (reg);
- SKIP_ULEB ();
+ READ_ULEB (reg, start, end);
+ SKIP_ULEB (start, end);
if (frame_need_space (fc, reg) >= 0)
fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_def_cfa:
- SKIP_ULEB ();
- SKIP_ULEB ();
+ SKIP_ULEB (start, end);
+ SKIP_ULEB (start, end);
break;
case DW_CFA_def_cfa_register:
- SKIP_ULEB ();
+ SKIP_ULEB (start, end);
break;
case DW_CFA_def_cfa_offset:
- SKIP_ULEB ();
+ SKIP_ULEB (start, end);
break;
case DW_CFA_def_cfa_expression:
- READ_ULEB (temp);
+ READ_ULEB (temp, start, end);
new_start = start + temp;
if (new_start < start)
{
break;
case DW_CFA_expression:
case DW_CFA_val_expression:
- READ_ULEB (reg);
- READ_ULEB (temp);
+ READ_ULEB (reg, start, end);
+ READ_ULEB (temp, start, end);
new_start = start + temp;
if (new_start < start)
{
break;
case DW_CFA_offset_extended_sf:
case DW_CFA_val_offset_sf:
- READ_ULEB (reg);
- SKIP_SLEB ();
+ READ_ULEB (reg, start, end);
+ SKIP_SLEB (start, end);
if (frame_need_space (fc, reg) >= 0)
fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_def_cfa_sf:
- SKIP_ULEB ();
- SKIP_SLEB ();
+ SKIP_ULEB (start, end);
+ SKIP_SLEB (start, end);
break;
case DW_CFA_def_cfa_offset_sf:
- SKIP_SLEB ();
+ SKIP_SLEB (start, end);
break;
case DW_CFA_MIPS_advance_loc8:
start += 8;
break;
case DW_CFA_GNU_args_size:
- SKIP_ULEB ();
+ SKIP_ULEB (start, end);
break;
case DW_CFA_GNU_negative_offset_extended:
- READ_ULEB (reg);
- SKIP_ULEB ();
+ READ_ULEB (reg, start, end);
+ SKIP_ULEB (start, end);
if (frame_need_space (fc, reg) >= 0)
fc->col_type[reg] = DW_CFA_undefined;
break;
start = tmp;
}
- all_nops = TRUE;
+ all_nops = true;
/* Now we know what registers are used, make a second pass over
the chunk, this time actually printing out the info. */
/* Make a note if something other than DW_CFA_nop happens. */
if (op != DW_CFA_nop)
- all_nops = FALSE;
+ all_nops = false;
/* Warning: if you add any more cases to this switch, be
sure to add them to the corresponding switch above. */
if (do_debug_frames_interp)
frame_display_row (fc, &need_col_headers, &max_regs);
else
- printf (" DW_CFA_advance_loc: %d to %s\n",
- opa * fc->code_factor,
+ printf (" DW_CFA_advance_loc: %d to %s\n",
+ opa * fc->code_factor,
+ dwarf_vmatoa_1 (NULL,
+ fc->pc_begin + opa * fc->code_factor,
+ fc->ptr_size));
+ fc->pc_begin += opa * fc->code_factor;
+ break;
+
+ case DW_CFA_offset:
+ READ_ULEB (roffs, start, end);
+ if (opa >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
+ reg_prefix, regname (opa, 0),
+ roffs * fc->data_factor);
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[opa] = DW_CFA_offset;
+ fc->col_offset[opa] = roffs * fc->data_factor;
+ }
+ break;
+
+ case DW_CFA_restore:
+ if (opa >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_restore: %s%s\n",
+ reg_prefix, regname (opa, 0));
+ if (*reg_prefix != '\0')
+ break;
+
+ if (opa >= (unsigned int) cie->ncols
+ || (do_debug_frames_interp
+ && cie->col_type[opa] == DW_CFA_unreferenced))
+ {
+ fc->col_type[opa] = DW_CFA_undefined;
+ fc->col_offset[opa] = 0;
+ }
+ else
+ {
+ fc->col_type[opa] = cie->col_type[opa];
+ fc->col_offset[opa] = cie->col_offset[opa];
+ }
+ break;
+
+ case DW_CFA_set_loc:
+ vma = get_encoded_value (&start, fc->fde_encoding, section, block_end);
+ if (do_debug_frames_interp)
+ frame_display_row (fc, &need_col_headers, &max_regs);
+ else
+ printf (" DW_CFA_set_loc: %s\n",
+ dwarf_vmatoa_1 (NULL, vma, fc->ptr_size));
+ fc->pc_begin = vma;
+ break;
+
+ case DW_CFA_advance_loc1:
+ SAFE_BYTE_GET_AND_INC (ofs, start, 1, end);
+ if (do_debug_frames_interp)
+ frame_display_row (fc, &need_col_headers, &max_regs);
+ else
+ printf (" DW_CFA_advance_loc1: %ld to %s\n",
+ (unsigned long) (ofs * fc->code_factor),
+ dwarf_vmatoa_1 (NULL,
+ fc->pc_begin + ofs * fc->code_factor,
+ fc->ptr_size));
+ fc->pc_begin += ofs * fc->code_factor;
+ break;
+
+ case DW_CFA_advance_loc2:
+ SAFE_BYTE_GET_AND_INC (ofs, start, 2, block_end);
+ if (do_debug_frames_interp)
+ frame_display_row (fc, &need_col_headers, &max_regs);
+ else
+ printf (" DW_CFA_advance_loc2: %ld to %s\n",
+ (unsigned long) (ofs * fc->code_factor),
+ dwarf_vmatoa_1 (NULL,
+ fc->pc_begin + ofs * fc->code_factor,
+ fc->ptr_size));
+ fc->pc_begin += ofs * fc->code_factor;
+ break;
+
+ case DW_CFA_advance_loc4:
+ SAFE_BYTE_GET_AND_INC (ofs, start, 4, block_end);
+ if (do_debug_frames_interp)
+ frame_display_row (fc, &need_col_headers, &max_regs);
+ else
+ printf (" DW_CFA_advance_loc4: %ld to %s\n",
+ (unsigned long) (ofs * fc->code_factor),
dwarf_vmatoa_1 (NULL,
- fc->pc_begin + opa * fc->code_factor,
+ fc->pc_begin + ofs * fc->code_factor,
fc->ptr_size));
- fc->pc_begin += opa * fc->code_factor;
+ fc->pc_begin += ofs * fc->code_factor;
break;
- case DW_CFA_offset:
- READ_ULEB (roffs);
- if (opa >= (unsigned int) fc->ncols)
+ case DW_CFA_offset_extended:
+ READ_ULEB (reg, start, end);
+ READ_ULEB (roffs, start, end);
+ if (reg >= (unsigned int) fc->ncols)
reg_prefix = bad_reg;
if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
- reg_prefix, regname (opa, 0),
+ printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
roffs * fc->data_factor);
if (*reg_prefix == '\0')
{
- fc->col_type[opa] = DW_CFA_offset;
- fc->col_offset[opa] = roffs * fc->data_factor;
+ fc->col_type[reg] = DW_CFA_offset;
+ fc->col_offset[reg] = roffs * fc->data_factor;
}
break;
- case DW_CFA_restore:
- if (opa >= (unsigned int) fc->ncols)
+ case DW_CFA_val_offset:
+ READ_ULEB (reg, start, end);
+ READ_ULEB (roffs, start, end);
+ if (reg >= (unsigned int) fc->ncols)
reg_prefix = bad_reg;
if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_restore: %s%s\n",
- reg_prefix, regname (opa, 0));
+ printf (" DW_CFA_val_offset: %s%s is cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
+ roffs * fc->data_factor);
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_val_offset;
+ fc->col_offset[reg] = roffs * fc->data_factor;
+ }
+ break;
+
+ case DW_CFA_restore_extended:
+ READ_ULEB (reg, start, end);
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_restore_extended: %s%s\n",
+ reg_prefix, regname (reg, 0));
if (*reg_prefix != '\0')
break;
- if (opa >= (unsigned int) cie->ncols
- || (do_debug_frames_interp
- && cie->col_type[opa] == DW_CFA_unreferenced))
+ if (reg >= (unsigned int) cie->ncols)
{
- fc->col_type[opa] = DW_CFA_undefined;
- fc->col_offset[opa] = 0;
+ fc->col_type[reg] = DW_CFA_undefined;
+ fc->col_offset[reg] = 0;
}
else
{
- fc->col_type[opa] = cie->col_type[opa];
- fc->col_offset[opa] = cie->col_offset[opa];
+ fc->col_type[reg] = cie->col_type[reg];
+ fc->col_offset[reg] = cie->col_offset[reg];
+ }
+ break;
+
+ case DW_CFA_undefined:
+ READ_ULEB (reg, start, end);
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_undefined: %s%s\n",
+ reg_prefix, regname (reg, 0));
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_undefined;
+ fc->col_offset[reg] = 0;
+ }
+ break;
+
+ case DW_CFA_same_value:
+ READ_ULEB (reg, start, end);
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_same_value: %s%s\n",
+ reg_prefix, regname (reg, 0));
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_same_value;
+ fc->col_offset[reg] = 0;
+ }
+ break;
+
+ case DW_CFA_register:
+ READ_ULEB (reg, start, end);
+ READ_ULEB (roffs, start, end);
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ {
+ printf (" DW_CFA_register: %s%s in ",
+ reg_prefix, regname (reg, 0));
+ puts (regname (roffs, 0));
+ }
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_register;
+ fc->col_offset[reg] = roffs;
+ }
+ break;
+
+ case DW_CFA_remember_state:
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_remember_state\n");
+ rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
+ rs->cfa_offset = fc->cfa_offset;
+ rs->cfa_reg = fc->cfa_reg;
+ rs->ra = fc->ra;
+ rs->cfa_exp = fc->cfa_exp;
+ rs->ncols = fc->ncols;
+ rs->col_type = (short int *) xcmalloc (rs->ncols,
+ sizeof (* rs->col_type));
+ rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (* rs->col_offset));
+ memcpy (rs->col_type, fc->col_type, rs->ncols * sizeof (* fc->col_type));
+ memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (* fc->col_offset));
+ rs->next = remembered_state;
+ remembered_state = rs;
+ break;
+
+ case DW_CFA_restore_state:
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_restore_state\n");
+ rs = remembered_state;
+ if (rs)
+ {
+ remembered_state = rs->next;
+ fc->cfa_offset = rs->cfa_offset;
+ fc->cfa_reg = rs->cfa_reg;
+ fc->ra = rs->ra;
+ fc->cfa_exp = rs->cfa_exp;
+ if (frame_need_space (fc, rs->ncols - 1) < 0)
+ {
+ warn (_("Invalid column number in saved frame state\n"));
+ fc->ncols = 0;
+ break;
+ }
+ memcpy (fc->col_type, rs->col_type, rs->ncols * sizeof (* rs->col_type));
+ memcpy (fc->col_offset, rs->col_offset,
+ rs->ncols * sizeof (* rs->col_offset));
+ free (rs->col_type);
+ free (rs->col_offset);
+ free (rs);
+ }
+ else if (do_debug_frames_interp)
+ printf ("Mismatched DW_CFA_restore_state\n");
+ break;
+
+ case DW_CFA_def_cfa:
+ READ_ULEB (fc->cfa_reg, start, end);
+ READ_ULEB (fc->cfa_offset, start, end);
+ fc->cfa_exp = 0;
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_def_cfa: %s ofs %d\n",
+ regname (fc->cfa_reg, 0), (int) fc->cfa_offset);
+ break;
+
+ case DW_CFA_def_cfa_register:
+ READ_ULEB (fc->cfa_reg, start, end);
+ fc->cfa_exp = 0;
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_def_cfa_register: %s\n",
+ regname (fc->cfa_reg, 0));
+ break;
+
+ case DW_CFA_def_cfa_offset:
+ READ_ULEB (fc->cfa_offset, start, end);
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_def_cfa_offset: %d\n", (int) fc->cfa_offset);
+ break;
+
+ case DW_CFA_nop:
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_nop\n");
+ break;
+
+ case DW_CFA_def_cfa_expression:
+ READ_ULEB (ul, start, end);
+ if (start >= block_end || ul > (unsigned long) (block_end - start))
+ {
+ printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul);
+ break;
+ }
+ if (! do_debug_frames_interp)
+ {
+ printf (" DW_CFA_def_cfa_expression (");
+ decode_location_expression (start, eh_addr_size, 0, -1,
+ ul, 0, section);
+ printf (")\n");
+ }
+ fc->cfa_exp = 1;
+ start += ul;
+ break;
+
+ case DW_CFA_expression:
+ READ_ULEB (reg, start, end);
+ READ_ULEB (ul, start, end);
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ /* PR 17512: file: 069-133014-0.006. */
+ /* PR 17512: file: 98c02eb4. */
+ tmp = start + ul;
+ if (start >= block_end || tmp > block_end || tmp < start)
+ {
+ printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul);
+ break;
+ }
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ {
+ printf (" DW_CFA_expression: %s%s (",
+ reg_prefix, regname (reg, 0));
+ decode_location_expression (start, eh_addr_size, 0, -1,
+ ul, 0, section);
+ printf (")\n");
+ }
+ if (*reg_prefix == '\0')
+ fc->col_type[reg] = DW_CFA_expression;
+ start = tmp;
+ break;
+
+ case DW_CFA_val_expression:
+ READ_ULEB (reg, start, end);
+ READ_ULEB (ul, start, end);
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ tmp = start + ul;
+ if (start >= block_end || tmp > block_end || tmp < start)
+ {
+ printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul);
+ break;
+ }
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ {
+ printf (" DW_CFA_val_expression: %s%s (",
+ reg_prefix, regname (reg, 0));
+ decode_location_expression (start, eh_addr_size, 0, -1,
+ ul, 0, section);
+ printf (")\n");
+ }
+ if (*reg_prefix == '\0')
+ fc->col_type[reg] = DW_CFA_val_expression;
+ start = tmp;
+ break;
+
+ case DW_CFA_offset_extended_sf:
+ READ_ULEB (reg, start, end);
+ READ_SLEB (l, start, end);
+ if (frame_need_space (fc, reg) < 0)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
+ (long)(l * fc->data_factor));
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_offset;
+ fc->col_offset[reg] = l * fc->data_factor;
+ }
+ break;
+
+ case DW_CFA_val_offset_sf:
+ READ_ULEB (reg, start, end);
+ READ_SLEB (l, start, end);
+ if (frame_need_space (fc, reg) < 0)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_val_offset_sf: %s%s is cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
+ (long)(l * fc->data_factor));
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_val_offset;
+ fc->col_offset[reg] = l * fc->data_factor;
}
break;
- case DW_CFA_set_loc:
- vma = get_encoded_value (&start, fc->fde_encoding, section, block_end);
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_set_loc: %s\n",
- dwarf_vmatoa_1 (NULL, vma, fc->ptr_size));
- fc->pc_begin = vma;
+ case DW_CFA_def_cfa_sf:
+ READ_ULEB (fc->cfa_reg, start, end);
+ READ_ULEB (fc->cfa_offset, start, end);
+ fc->cfa_offset = fc->cfa_offset * fc->data_factor;
+ fc->cfa_exp = 0;
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
+ regname (fc->cfa_reg, 0), (int) fc->cfa_offset);
break;
- case DW_CFA_advance_loc1:
- SAFE_BYTE_GET_AND_INC (ofs, start, 1, end);
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc1: %ld to %s\n",
- (unsigned long) (ofs * fc->code_factor),
- dwarf_vmatoa_1 (NULL,
- fc->pc_begin + ofs * fc->code_factor,
- fc->ptr_size));
- fc->pc_begin += ofs * fc->code_factor;
+ case DW_CFA_def_cfa_offset_sf:
+ READ_ULEB (fc->cfa_offset, start, end);
+ fc->cfa_offset *= fc->data_factor;
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_def_cfa_offset_sf: %d\n", (int) fc->cfa_offset);
break;
- case DW_CFA_advance_loc2:
- SAFE_BYTE_GET_AND_INC (ofs, start, 2, block_end);
+ case DW_CFA_MIPS_advance_loc8:
+ SAFE_BYTE_GET_AND_INC (ofs, start, 8, block_end);
if (do_debug_frames_interp)
frame_display_row (fc, &need_col_headers, &max_regs);
else
- printf (" DW_CFA_advance_loc2: %ld to %s\n",
+ printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n",
(unsigned long) (ofs * fc->code_factor),
dwarf_vmatoa_1 (NULL,
fc->pc_begin + ofs * fc->code_factor,
fc->pc_begin += ofs * fc->code_factor;
break;
- case DW_CFA_advance_loc4:
- SAFE_BYTE_GET_AND_INC (ofs, start, 4, block_end);
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc4: %ld to %s\n",
- (unsigned long) (ofs * fc->code_factor),
- dwarf_vmatoa_1 (NULL,
- fc->pc_begin + ofs * fc->code_factor,
- fc->ptr_size));
- fc->pc_begin += ofs * fc->code_factor;
+ case DW_CFA_GNU_window_save:
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_GNU_window_save\n");
break;
- case DW_CFA_offset_extended:
- READ_ULEB (reg);
- READ_ULEB (roffs);
- if (reg >= (unsigned int) fc->ncols)
+ case DW_CFA_GNU_args_size:
+ READ_ULEB (ul, start, end);
+ if (! do_debug_frames_interp)
+ printf (" DW_CFA_GNU_args_size: %ld\n", ul);
+ break;
+
+ case DW_CFA_GNU_negative_offset_extended:
+ READ_ULEB (reg, start, end);
+ READ_SLEB (l, start, end);
+ l = - l;
+ if (frame_need_space (fc, reg) < 0)
reg_prefix = bad_reg;
if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
+ printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
reg_prefix, regname (reg, 0),
- roffs * fc->data_factor);
+ (long)(l * fc->data_factor));
if (*reg_prefix == '\0')
{
fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = roffs * fc->data_factor;
+ fc->col_offset[reg] = l * fc->data_factor;
}
break;
- case DW_CFA_val_offset:
- READ_ULEB (reg);
- READ_ULEB (roffs);
- if (reg >= (unsigned int) fc->ncols)
- reg_prefix = bad_reg;
- if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_val_offset: %s%s is cfa%+ld\n",
- reg_prefix, regname (reg, 0),
- roffs * fc->data_factor);
- if (*reg_prefix == '\0')
- {
- fc->col_type[reg] = DW_CFA_val_offset;
- fc->col_offset[reg] = roffs * fc->data_factor;
- }
- break;
+ default:
+ if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
+ printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op);
+ else
+ warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
+ start = block_end;
+ }
+ }
+
+ /* Interpret the CFA - as long as it is not completely full of NOPs. */
+ if (do_debug_frames_interp && ! all_nops)
+ frame_display_row (fc, &need_col_headers, &max_regs);
+
+ if (fde_fc.col_type != NULL)
+ {
+ free (fde_fc.col_type);
+ fde_fc.col_type = NULL;
+ }
+ if (fde_fc.col_offset != NULL)
+ {
+ free (fde_fc.col_offset);
+ fde_fc.col_offset = NULL;
+ }
+
+ start = block_end;
+ eh_addr_size = saved_eh_addr_size;
+ }
+
+ printf ("\n");
+
+ while (remembered_state != NULL)
+ {
+ rs = remembered_state;
+ remembered_state = rs->next;
+ free (rs->col_type);
+ free (rs->col_offset);
+ rs->next = NULL; /* Paranoia. */
+ free (rs);
+ }
+
+ while (chunks != NULL)
+ {
+ rs = chunks;
+ chunks = rs->next;
+ free (rs->col_type);
+ free (rs->col_offset);
+ rs->next = NULL; /* Paranoia. */
+ free (rs);
+ }
+
+ while (forward_refs != NULL)
+ {
+ rs = forward_refs;
+ forward_refs = rs->next;
+ free (rs->col_type);
+ free (rs->col_offset);
+ rs->next = NULL; /* Paranoia. */
+ free (rs);
+ }
+
+ return 1;
+}
+
+#undef GET
+
+static int
+display_debug_names (struct dwarf_section *section, void *file)
+{
+ unsigned char *hdrptr = section->start;
+ dwarf_vma unit_length;
+ unsigned char *unit_start;
+ const unsigned char *const section_end = section->start + section->size;
+ unsigned char *unit_end;
+
+ introduce (section, false);
+
+ load_debug_section_with_follow (str, file);
+
+ for (; hdrptr < section_end; hdrptr = unit_end)
+ {
+ unsigned int offset_size;
+ uint16_t dwarf_version, padding;
+ uint32_t comp_unit_count, local_type_unit_count, foreign_type_unit_count;
+ uint32_t bucket_count, name_count, abbrev_table_size;
+ uint32_t augmentation_string_size;
+ unsigned int i;
+ unsigned long sec_off;
+ bool augmentation_printable;
+ const char *augmentation_string;
+
+ unit_start = hdrptr;
+
+ /* Get and check the length of the block. */
+ SAFE_BYTE_GET_AND_INC (unit_length, hdrptr, 4, section_end);
+
+ if (unit_length == 0xffffffff)
+ {
+ /* This section is 64-bit DWARF. */
+ SAFE_BYTE_GET_AND_INC (unit_length, hdrptr, 8, section_end);
+ offset_size = 8;
+ }
+ else
+ offset_size = 4;
+ unit_end = hdrptr + unit_length;
+
+ sec_off = hdrptr - section->start;
+ if (sec_off + unit_length < sec_off
+ || sec_off + unit_length > section->size)
+ {
+ warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
+ section->name,
+ (unsigned long) (unit_start - section->start),
+ dwarf_vmatoa ("x", unit_length));
+ return 0;
+ }
+
+ /* Get and check the version number. */
+ SAFE_BYTE_GET_AND_INC (dwarf_version, hdrptr, 2, unit_end);
+ printf (_("Version %ld\n"), (long) dwarf_version);
+
+ /* Prior versions did not exist, and future versions may not be
+ backwards compatible. */
+ if (dwarf_version != 5)
+ {
+ warn (_("Only DWARF version 5 .debug_names "
+ "is currently supported.\n"));
+ return 0;
+ }
+
+ SAFE_BYTE_GET_AND_INC (padding, hdrptr, 2, unit_end);
+ if (padding != 0)
+ warn (_("Padding field of .debug_names must be 0 (found 0x%x)\n"),
+ padding);
+
+ SAFE_BYTE_GET_AND_INC (comp_unit_count, hdrptr, 4, unit_end);
+ if (comp_unit_count == 0)
+ warn (_("Compilation unit count must be >= 1 in .debug_names\n"));
+
+ SAFE_BYTE_GET_AND_INC (local_type_unit_count, hdrptr, 4, unit_end);
+ SAFE_BYTE_GET_AND_INC (foreign_type_unit_count, hdrptr, 4, unit_end);
+ SAFE_BYTE_GET_AND_INC (bucket_count, hdrptr, 4, unit_end);
+ SAFE_BYTE_GET_AND_INC (name_count, hdrptr, 4, unit_end);
+ SAFE_BYTE_GET_AND_INC (abbrev_table_size, hdrptr, 4, unit_end);
+
+ SAFE_BYTE_GET_AND_INC (augmentation_string_size, hdrptr, 4, unit_end);
+ if (augmentation_string_size % 4 != 0)
+ {
+ warn (_("Augmentation string length %u must be rounded up "
+ "to a multiple of 4 in .debug_names.\n"),
+ augmentation_string_size);
+ augmentation_string_size += (-augmentation_string_size) & 3;
+ }
+
+ printf (_("Augmentation string:"));
+
+ augmentation_printable = true;
+ augmentation_string = (const char *) hdrptr;
+
+ for (i = 0; i < augmentation_string_size; i++)
+ {
+ unsigned char uc;
+
+ SAFE_BYTE_GET_AND_INC (uc, hdrptr, 1, unit_end);
+ printf (" %02x", uc);
+
+ if (uc != 0 && !ISPRINT (uc))
+ augmentation_printable = false;
+ }
+
+ if (augmentation_printable)
+ {
+ printf (" (\"");
+ for (i = 0;
+ i < augmentation_string_size && augmentation_string[i];
+ ++i)
+ putchar (augmentation_string[i]);
+ printf ("\")");
+ }
+ putchar ('\n');
+
+ printf (_("CU table:\n"));
+ for (i = 0; i < comp_unit_count; i++)
+ {
+ uint64_t cu_offset;
+
+ SAFE_BYTE_GET_AND_INC (cu_offset, hdrptr, offset_size, unit_end);
+ printf (_("[%3u] 0x%lx\n"), i, (unsigned long) cu_offset);
+ }
+ putchar ('\n');
+
+ printf (_("TU table:\n"));
+ for (i = 0; i < local_type_unit_count; i++)
+ {
+ uint64_t tu_offset;
+
+ SAFE_BYTE_GET_AND_INC (tu_offset, hdrptr, offset_size, unit_end);
+ printf (_("[%3u] 0x%lx\n"), i, (unsigned long) tu_offset);
+ }
+ putchar ('\n');
+
+ printf (_("Foreign TU table:\n"));
+ for (i = 0; i < foreign_type_unit_count; i++)
+ {
+ uint64_t signature;
+
+ SAFE_BYTE_GET_AND_INC (signature, hdrptr, 8, unit_end);
+ printf (_("[%3u] "), i);
+ print_dwarf_vma (signature, 8);
+ putchar ('\n');
+ }
+ putchar ('\n');
+
+ const uint32_t *const hash_table_buckets = (uint32_t *) hdrptr;
+ hdrptr += bucket_count * sizeof (uint32_t);
+ const uint32_t *const hash_table_hashes = (uint32_t *) hdrptr;
+ hdrptr += name_count * sizeof (uint32_t);
+ unsigned char *const name_table_string_offsets = hdrptr;
+ hdrptr += name_count * offset_size;
+ unsigned char *const name_table_entry_offsets = hdrptr;
+ hdrptr += name_count * offset_size;
+ unsigned char *const abbrev_table = hdrptr;
+ hdrptr += abbrev_table_size;
+ const unsigned char *const abbrev_table_end = hdrptr;
+ unsigned char *const entry_pool = hdrptr;
+ if (hdrptr > unit_end)
+ {
+ warn (_("Entry pool offset (0x%lx) exceeds unit size 0x%lx "
+ "for unit 0x%lx in the debug_names\n"),
+ (long) (hdrptr - section->start),
+ (long) (unit_end - section->start),
+ (long) (unit_start - section->start));
+ return 0;
+ }
+
+ size_t buckets_filled = 0;
+ size_t bucketi;
+ for (bucketi = 0; bucketi < bucket_count; bucketi++)
+ {
+ const uint32_t bucket = hash_table_buckets[bucketi];
- case DW_CFA_restore_extended:
- READ_ULEB (reg);
- if (reg >= (unsigned int) fc->ncols)
- reg_prefix = bad_reg;
- if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_restore_extended: %s%s\n",
- reg_prefix, regname (reg, 0));
- if (*reg_prefix != '\0')
- break;
+ if (bucket != 0)
+ ++buckets_filled;
+ }
+ printf (ngettext ("Used %zu of %lu bucket.\n",
+ "Used %zu of %lu buckets.\n",
+ bucket_count),
+ buckets_filled, (unsigned long) bucket_count);
- if (reg >= (unsigned int) cie->ncols)
- {
- fc->col_type[reg] = DW_CFA_undefined;
- fc->col_offset[reg] = 0;
- }
- else
- {
- fc->col_type[reg] = cie->col_type[reg];
- fc->col_offset[reg] = cie->col_offset[reg];
- }
- break;
+ uint32_t hash_prev = 0;
+ size_t hash_clash_count = 0;
+ size_t longest_clash = 0;
+ size_t this_length = 0;
+ size_t hashi;
+ for (hashi = 0; hashi < name_count; hashi++)
+ {
+ const uint32_t hash_this = hash_table_hashes[hashi];
- case DW_CFA_undefined:
- READ_ULEB (reg);
- if (reg >= (unsigned int) fc->ncols)
- reg_prefix = bad_reg;
- if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_undefined: %s%s\n",
- reg_prefix, regname (reg, 0));
- if (*reg_prefix == '\0')
+ if (hashi > 0)
+ {
+ if (hash_prev % bucket_count == hash_this % bucket_count)
{
- fc->col_type[reg] = DW_CFA_undefined;
- fc->col_offset[reg] = 0;
+ ++hash_clash_count;
+ ++this_length;
+ longest_clash = MAX (longest_clash, this_length);
}
- break;
+ else
+ this_length = 0;
+ }
+ hash_prev = hash_this;
+ }
+ printf (_("Out of %lu items there are %zu bucket clashes"
+ " (longest of %zu entries).\n"),
+ (unsigned long) name_count, hash_clash_count, longest_clash);
+ assert (name_count == buckets_filled + hash_clash_count);
- case DW_CFA_same_value:
- READ_ULEB (reg);
- if (reg >= (unsigned int) fc->ncols)
- reg_prefix = bad_reg;
- if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_same_value: %s%s\n",
- reg_prefix, regname (reg, 0));
- if (*reg_prefix == '\0')
- {
- fc->col_type[reg] = DW_CFA_same_value;
- fc->col_offset[reg] = 0;
- }
- break;
+ struct abbrev_lookup_entry
+ {
+ dwarf_vma abbrev_tag;
+ unsigned char *abbrev_lookup_ptr;
+ };
+ struct abbrev_lookup_entry *abbrev_lookup = NULL;
+ size_t abbrev_lookup_used = 0;
+ size_t abbrev_lookup_allocated = 0;
- case DW_CFA_register:
- READ_ULEB (reg);
- READ_ULEB (roffs);
- if (reg >= (unsigned int) fc->ncols)
- reg_prefix = bad_reg;
- if (! do_debug_frames_interp || *reg_prefix != '\0')
- {
- printf (" DW_CFA_register: %s%s in ",
- reg_prefix, regname (reg, 0));
- puts (regname (roffs, 0));
- }
- if (*reg_prefix == '\0')
- {
- fc->col_type[reg] = DW_CFA_register;
- fc->col_offset[reg] = roffs;
- }
- break;
+ unsigned char *abbrevptr = abbrev_table;
+ for (;;)
+ {
+ dwarf_vma abbrev_tag;
- case DW_CFA_remember_state:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_remember_state\n");
- rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
- rs->cfa_offset = fc->cfa_offset;
- rs->cfa_reg = fc->cfa_reg;
- rs->ra = fc->ra;
- rs->cfa_exp = fc->cfa_exp;
- rs->ncols = fc->ncols;
- rs->col_type = (short int *) xcmalloc (rs->ncols,
- sizeof (* rs->col_type));
- rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (* rs->col_offset));
- memcpy (rs->col_type, fc->col_type, rs->ncols * sizeof (* fc->col_type));
- memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (* fc->col_offset));
- rs->next = remembered_state;
- remembered_state = rs;
- break;
+ READ_ULEB (abbrev_tag, abbrevptr, abbrev_table_end);
+ if (abbrev_tag == 0)
+ break;
+ if (abbrev_lookup_used == abbrev_lookup_allocated)
+ {
+ abbrev_lookup_allocated = MAX (0x100,
+ abbrev_lookup_allocated * 2);
+ abbrev_lookup = xrealloc (abbrev_lookup,
+ (abbrev_lookup_allocated
+ * sizeof (*abbrev_lookup)));
+ }
+ assert (abbrev_lookup_used < abbrev_lookup_allocated);
+ struct abbrev_lookup_entry *entry;
+ for (entry = abbrev_lookup;
+ entry < abbrev_lookup + abbrev_lookup_used;
+ entry++)
+ if (entry->abbrev_tag == abbrev_tag)
+ {
+ warn (_("Duplicate abbreviation tag %lu "
+ "in unit 0x%lx in the debug_names\n"),
+ (long) abbrev_tag, (long) (unit_start - section->start));
+ break;
+ }
+ entry = &abbrev_lookup[abbrev_lookup_used++];
+ entry->abbrev_tag = abbrev_tag;
+ entry->abbrev_lookup_ptr = abbrevptr;
- case DW_CFA_restore_state:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore_state\n");
- rs = remembered_state;
- if (rs)
- {
- remembered_state = rs->next;
- fc->cfa_offset = rs->cfa_offset;
- fc->cfa_reg = rs->cfa_reg;
- fc->ra = rs->ra;
- fc->cfa_exp = rs->cfa_exp;
- if (frame_need_space (fc, rs->ncols - 1) < 0)
- {
- warn (_("Invalid column number in saved frame state\n"));
- fc->ncols = 0;
- break;
- }
- memcpy (fc->col_type, rs->col_type, rs->ncols * sizeof (* rs->col_type));
- memcpy (fc->col_offset, rs->col_offset,
- rs->ncols * sizeof (* rs->col_offset));
- free (rs->col_type);
- free (rs->col_offset);
- free (rs);
- }
- else if (do_debug_frames_interp)
- printf ("Mismatched DW_CFA_restore_state\n");
- break;
+ /* Skip DWARF tag. */
+ SKIP_ULEB (abbrevptr, abbrev_table_end);
+ for (;;)
+ {
+ dwarf_vma xindex, form;
- case DW_CFA_def_cfa:
- READ_SLEB (fc->cfa_reg);
- READ_ULEB (fc->cfa_offset);
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa: %s ofs %d\n",
- regname (fc->cfa_reg, 0), (int) fc->cfa_offset);
- break;
+ READ_ULEB (xindex, abbrevptr, abbrev_table_end);
+ READ_ULEB (form, abbrevptr, abbrev_table_end);
+ if (xindex == 0 && form == 0)
+ break;
+ }
+ }
- case DW_CFA_def_cfa_register:
- READ_SLEB (fc->cfa_reg);
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_register: %s\n",
- regname (fc->cfa_reg, 0));
- break;
+ printf (_("\nSymbol table:\n"));
+ uint32_t namei;
+ for (namei = 0; namei < name_count; ++namei)
+ {
+ uint64_t string_offset, entry_offset;
- case DW_CFA_def_cfa_offset:
- READ_ULEB (fc->cfa_offset);
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_offset: %d\n", (int) fc->cfa_offset);
- break;
+ SAFE_BYTE_GET (string_offset,
+ name_table_string_offsets + namei * offset_size,
+ offset_size, unit_end);
+ SAFE_BYTE_GET (entry_offset,
+ name_table_entry_offsets + namei * offset_size,
+ offset_size, unit_end);
- case DW_CFA_nop:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_nop\n");
- break;
+ printf ("[%3u] #%08x %s:", namei, hash_table_hashes[namei],
+ fetch_indirect_string (string_offset));
- case DW_CFA_def_cfa_expression:
- READ_ULEB (ul);
- if (start >= block_end || ul > (unsigned long) (block_end - start))
- {
- printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul);
- break;
- }
- if (! do_debug_frames_interp)
- {
- printf (" DW_CFA_def_cfa_expression (");
- decode_location_expression (start, eh_addr_size, 0, -1,
- ul, 0, section);
- printf (")\n");
- }
- fc->cfa_exp = 1;
- start += ul;
- break;
+ unsigned char *entryptr = entry_pool + entry_offset;
- case DW_CFA_expression:
- READ_ULEB (reg);
- READ_ULEB (ul);
- if (reg >= (unsigned int) fc->ncols)
- reg_prefix = bad_reg;
- /* PR 17512: file: 069-133014-0.006. */
- /* PR 17512: file: 98c02eb4. */
- tmp = start + ul;
- if (start >= block_end || tmp > block_end || tmp < start)
- {
- printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul);
- break;
- }
- if (! do_debug_frames_interp || *reg_prefix != '\0')
+ /* We need to scan first whether there is a single or multiple
+ entries. TAGNO is -2 for the first entry, it is -1 for the
+ initial tag read of the second entry, then it becomes 0 for the
+ first entry for real printing etc. */
+ int tagno = -2;
+ /* Initialize it due to a false compiler warning. */
+ dwarf_vma second_abbrev_tag = -1;
+ for (;;)
+ {
+ dwarf_vma abbrev_tag;
+ dwarf_vma dwarf_tag;
+ const struct abbrev_lookup_entry *entry;
+
+ READ_ULEB (abbrev_tag, entryptr, unit_end);
+ if (tagno == -1)
{
- printf (" DW_CFA_expression: %s%s (",
- reg_prefix, regname (reg, 0));
- decode_location_expression (start, eh_addr_size, 0, -1,
- ul, 0, section);
- printf (")\n");
+ second_abbrev_tag = abbrev_tag;
+ tagno = 0;
+ entryptr = entry_pool + entry_offset;
+ continue;
}
- if (*reg_prefix == '\0')
- fc->col_type[reg] = DW_CFA_expression;
- start = tmp;
- break;
+ if (abbrev_tag == 0)
+ break;
+ if (tagno >= 0)
+ printf ("%s<%lu>",
+ (tagno == 0 && second_abbrev_tag == 0 ? " " : "\n\t"),
+ (unsigned long) abbrev_tag);
- case DW_CFA_val_expression:
- READ_ULEB (reg);
- READ_ULEB (ul);
- if (reg >= (unsigned int) fc->ncols)
- reg_prefix = bad_reg;
- tmp = start + ul;
- if (start >= block_end || tmp > block_end || tmp < start)
+ for (entry = abbrev_lookup;
+ entry < abbrev_lookup + abbrev_lookup_used;
+ entry++)
+ if (entry->abbrev_tag == abbrev_tag)
+ break;
+ if (entry >= abbrev_lookup + abbrev_lookup_used)
{
- printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul);
+ warn (_("Undefined abbreviation tag %lu "
+ "in unit 0x%lx in the debug_names\n"),
+ (long) abbrev_tag,
+ (long) (unit_start - section->start));
break;
}
- if (! do_debug_frames_interp || *reg_prefix != '\0')
+ abbrevptr = entry->abbrev_lookup_ptr;
+ READ_ULEB (dwarf_tag, abbrevptr, abbrev_table_end);
+ if (tagno >= 0)
+ printf (" %s", get_TAG_name (dwarf_tag));
+ for (;;)
{
- printf (" DW_CFA_val_expression: %s%s (",
- reg_prefix, regname (reg, 0));
- decode_location_expression (start, eh_addr_size, 0, -1,
- ul, 0, section);
- printf (")\n");
- }
- if (*reg_prefix == '\0')
- fc->col_type[reg] = DW_CFA_val_expression;
- start = tmp;
- break;
+ dwarf_vma xindex, form;
- case DW_CFA_offset_extended_sf:
- READ_ULEB (reg);
- READ_SLEB (l);
- if (frame_need_space (fc, reg) < 0)
- reg_prefix = bad_reg;
- if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
- reg_prefix, regname (reg, 0),
- (long)(l * fc->data_factor));
- if (*reg_prefix == '\0')
- {
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = l * fc->data_factor;
- }
- break;
+ READ_ULEB (xindex, abbrevptr, abbrev_table_end);
+ READ_ULEB (form, abbrevptr, abbrev_table_end);
+ if (xindex == 0 && form == 0)
+ break;
- case DW_CFA_val_offset_sf:
- READ_ULEB (reg);
- READ_SLEB (l);
- if (frame_need_space (fc, reg) < 0)
- reg_prefix = bad_reg;
- if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_val_offset_sf: %s%s is cfa%+ld\n",
- reg_prefix, regname (reg, 0),
- (long)(l * fc->data_factor));
- if (*reg_prefix == '\0')
- {
- fc->col_type[reg] = DW_CFA_val_offset;
- fc->col_offset[reg] = l * fc->data_factor;
+ if (tagno >= 0)
+ printf (" %s", get_IDX_name (xindex));
+ entryptr = read_and_display_attr_value (0, form, 0,
+ unit_start, entryptr, unit_end,
+ 0, 0, offset_size,
+ dwarf_version, NULL,
+ (tagno < 0), NULL,
+ NULL, '=', -1);
}
- break;
+ ++tagno;
+ }
+ if (tagno <= 0)
+ printf (_(" <no entries>"));
+ putchar ('\n');
+ }
- case DW_CFA_def_cfa_sf:
- READ_SLEB (fc->cfa_reg);
- READ_ULEB (fc->cfa_offset);
- fc->cfa_offset = fc->cfa_offset * fc->data_factor;
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
- regname (fc->cfa_reg, 0), (int) fc->cfa_offset);
- break;
+ free (abbrev_lookup);
+ }
- case DW_CFA_def_cfa_offset_sf:
- READ_ULEB (fc->cfa_offset);
- fc->cfa_offset *= fc->data_factor;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_offset_sf: %d\n", (int) fc->cfa_offset);
- break;
+ return 1;
+}
- case DW_CFA_MIPS_advance_loc8:
- SAFE_BYTE_GET_AND_INC (ofs, start, 8, block_end);
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n",
- (unsigned long) (ofs * fc->code_factor),
- dwarf_vmatoa_1 (NULL,
- fc->pc_begin + ofs * fc->code_factor,
- fc->ptr_size));
- fc->pc_begin += ofs * fc->code_factor;
- break;
+static int
+display_debug_links (struct dwarf_section * section,
+ void * file ATTRIBUTE_UNUSED)
+{
+ const unsigned char * filename;
+ unsigned int filelen;
- case DW_CFA_GNU_window_save:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_GNU_window_save\n");
- break;
+ introduce (section, false);
- case DW_CFA_GNU_args_size:
- READ_ULEB (ul);
- if (! do_debug_frames_interp)
- printf (" DW_CFA_GNU_args_size: %ld\n", ul);
- break;
+ /* The .gnu_debuglink section is formatted as:
+ (c-string) Filename.
+ (padding) If needed to reach a 4 byte boundary.
+ (uint32_t) CRC32 value.
- case DW_CFA_GNU_negative_offset_extended:
- READ_ULEB (reg);
- READ_SLEB (l);
- l = - l;
- if (frame_need_space (fc, reg) < 0)
- reg_prefix = bad_reg;
- if (! do_debug_frames_interp || *reg_prefix != '\0')
- printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
- reg_prefix, regname (reg, 0),
- (long)(l * fc->data_factor));
- if (*reg_prefix == '\0')
- {
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = l * fc->data_factor;
- }
- break;
+ The .gun_debugaltlink section is formatted as:
+ (c-string) Filename.
+ (binary) Build-ID. */
+
+ filename = section->start;
+ filelen = strnlen ((const char *) filename, section->size);
+ if (filelen == section->size)
+ {
+ warn (_("The debuglink filename is corrupt/missing\n"));
+ return 0;
+ }
+
+ printf (_(" Separate debug info file: %s\n"), filename);
+
+ if (startswith (section->name, ".gnu_debuglink"))
+ {
+ unsigned int crc32;
+ unsigned int crc_offset;
+
+ crc_offset = filelen + 1;
+ crc_offset = (crc_offset + 3) & ~3;
+ if (crc_offset + 4 > section->size)
+ {
+ warn (_("CRC offset missing/truncated\n"));
+ return 0;
+ }
+
+ crc32 = byte_get (filename + crc_offset, 4);
+
+ printf (_(" CRC value: %#x\n"), crc32);
+
+ if (crc_offset + 4 < section->size)
+ {
+ warn (_("There are %#lx extraneous bytes at the end of the section\n"),
+ (long)(section->size - (crc_offset + 4)));
+ return 0;
+ }
+ }
+ else /* startswith (section->name, ".gnu_debugaltlink") */
+ {
+ const unsigned char * build_id = section->start + filelen + 1;
+ bfd_size_type build_id_len = section->size - (filelen + 1);
+ bfd_size_type printed;
+
+ /* FIXME: Should we support smaller build-id notes ? */
+ if (build_id_len < 0x14)
+ {
+ warn (_("Build-ID is too short (%#lx bytes)\n"), (long) build_id_len);
+ return 0;
+ }
+
+ printed = printf (_(" Build-ID (%#lx bytes):"), (long) build_id_len);
+ display_data (printed, build_id, build_id_len);
+ putchar ('\n');
+ }
+
+ putchar ('\n');
+ return 1;
+}
+
+static int
+display_gdb_index (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
+{
+ unsigned char *start = section->start;
+ uint32_t version;
+ uint32_t cu_list_offset, tu_list_offset;
+ uint32_t address_table_offset, symbol_table_offset, constant_pool_offset;
+ unsigned int cu_list_elements, tu_list_elements;
+ unsigned int address_table_size, symbol_table_slots;
+ unsigned char *cu_list, *tu_list;
+ unsigned char *address_table, *symbol_table, *constant_pool;
+ unsigned int i;
+
+ /* The documentation for the format of this file is in gdb/dwarf2read.c. */
+
+ introduce (section, false);
+
+ if (section->size < 6 * sizeof (uint32_t))
+ {
+ warn (_("Truncated header in the %s section.\n"), section->name);
+ return 0;
+ }
+
+ version = byte_get_little_endian (start, 4);
+ printf (_("Version %ld\n"), (long) version);
+
+ /* Prior versions are obsolete, and future versions may not be
+ backwards compatible. */
+ if (version < 3 || version > 8)
+ {
+ warn (_("Unsupported version %lu.\n"), (unsigned long) version);
+ return 0;
+ }
+ if (version < 4)
+ warn (_("The address table data in version 3 may be wrong.\n"));
+ if (version < 5)
+ warn (_("Version 4 does not support case insensitive lookups.\n"));
+ if (version < 6)
+ warn (_("Version 5 does not include inlined functions.\n"));
+ if (version < 7)
+ warn (_("Version 6 does not include symbol attributes.\n"));
+ /* Version 7 indices generated by Gold have bad type unit references,
+ PR binutils/15021. But we don't know if the index was generated by
+ Gold or not, so to avoid worrying users with gdb-generated indices
+ we say nothing for version 7 here. */
+
+ cu_list_offset = byte_get_little_endian (start + 4, 4);
+ tu_list_offset = byte_get_little_endian (start + 8, 4);
+ address_table_offset = byte_get_little_endian (start + 12, 4);
+ symbol_table_offset = byte_get_little_endian (start + 16, 4);
+ constant_pool_offset = byte_get_little_endian (start + 20, 4);
+
+ if (cu_list_offset > section->size
+ || tu_list_offset > section->size
+ || address_table_offset > section->size
+ || symbol_table_offset > section->size
+ || constant_pool_offset > section->size)
+ {
+ warn (_("Corrupt header in the %s section.\n"), section->name);
+ return 0;
+ }
+
+ /* PR 17531: file: 418d0a8a. */
+ if (tu_list_offset < cu_list_offset)
+ {
+ warn (_("TU offset (%x) is less than CU offset (%x)\n"),
+ tu_list_offset, cu_list_offset);
+ return 0;
+ }
+
+ cu_list_elements = (tu_list_offset - cu_list_offset) / 8;
+
+ if (address_table_offset < tu_list_offset)
+ {
+ warn (_("Address table offset (%x) is less than TU offset (%x)\n"),
+ address_table_offset, tu_list_offset);
+ return 0;
+ }
+
+ tu_list_elements = (address_table_offset - tu_list_offset) / 8;
- default:
- if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
- printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op);
- else
- warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
- start = block_end;
- }
- }
+ /* PR 17531: file: 18a47d3d. */
+ if (symbol_table_offset < address_table_offset)
+ {
+ warn (_("Symbol table offset (%x) is less then Address table offset (%x)\n"),
+ symbol_table_offset, address_table_offset);
+ return 0;
+ }
- /* Interpret the CFA - as long as it is not completely full of NOPs. */
- if (do_debug_frames_interp && ! all_nops)
- frame_display_row (fc, &need_col_headers, &max_regs);
+ address_table_size = symbol_table_offset - address_table_offset;
- start = block_end;
- eh_addr_size = saved_eh_addr_size;
+ if (constant_pool_offset < symbol_table_offset)
+ {
+ warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"),
+ constant_pool_offset, symbol_table_offset);
+ return 0;
}
- printf ("\n");
+ symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8;
- return 1;
-}
+ cu_list = start + cu_list_offset;
+ tu_list = start + tu_list_offset;
+ address_table = start + address_table_offset;
+ symbol_table = start + symbol_table_offset;
+ constant_pool = start + constant_pool_offset;
-#undef GET
+ if (address_table + address_table_size > section->start + section->size)
+ {
+ warn (_("Address table extends beyond end of section.\n"));
+ return 0;
+ }
-static int
-display_debug_names (struct dwarf_section *section, void *file)
-{
- unsigned char *hdrptr = section->start;
- dwarf_vma unit_length;
- unsigned char *unit_start;
- const unsigned char *const section_end = section->start + section->size;
- unsigned char *unit_end;
+ printf (_("\nCU table:\n"));
+ for (i = 0; i < cu_list_elements; i += 2)
+ {
+ uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8);
+ uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8);
+
+ printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2,
+ (unsigned long) cu_offset,
+ (unsigned long) (cu_offset + cu_length - 1));
+ }
- printf (_("Contents of the %s section:\n"), section->name);
+ printf (_("\nTU table:\n"));
+ for (i = 0; i < tu_list_elements; i += 3)
+ {
+ uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8);
+ uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8);
+ uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8);
- load_debug_section (str, file);
+ printf (_("[%3u] 0x%lx 0x%lx "), i / 3,
+ (unsigned long) tu_offset,
+ (unsigned long) type_offset);
+ print_dwarf_vma (signature, 8);
+ printf ("\n");
+ }
- for (; hdrptr < section_end; hdrptr = unit_end)
+ printf (_("\nAddress table:\n"));
+ for (i = 0; i < address_table_size && i <= address_table_size - (2 * 8 + 4);
+ i += 2 * 8 + 4)
{
- unsigned int offset_size;
- uint16_t dwarf_version, padding;
- uint32_t comp_unit_count, local_type_unit_count, foreign_type_unit_count;
- uint32_t bucket_count, name_count, abbrev_table_size;
- uint32_t augmentation_string_size;
- unsigned int i;
- unsigned long sec_off;
+ uint64_t low = byte_get_little_endian (address_table + i, 8);
+ uint64_t high = byte_get_little_endian (address_table + i + 8, 8);
+ uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4);
- unit_start = hdrptr;
+ print_dwarf_vma (low, 8);
+ print_dwarf_vma (high, 8);
+ printf (_("%lu\n"), (unsigned long) cu_index);
+ }
- /* Get and check the length of the block. */
- SAFE_BYTE_GET_AND_INC (unit_length, hdrptr, 4, section_end);
+ printf (_("\nSymbol table:\n"));
+ for (i = 0; i < symbol_table_slots; ++i)
+ {
+ uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4);
+ uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4);
+ uint32_t num_cus, cu;
- if (unit_length == 0xffffffff)
+ if (name_offset != 0
+ || cu_vector_offset != 0)
{
- /* This section is 64-bit DWARF. */
- SAFE_BYTE_GET_AND_INC (unit_length, hdrptr, 8, section_end);
- offset_size = 8;
- }
- else
- offset_size = 4;
- unit_end = hdrptr + unit_length;
+ unsigned int j;
+ unsigned char * adr;
- sec_off = hdrptr - section->start;
- if (sec_off + unit_length < sec_off
- || sec_off + unit_length > section->size)
- {
- warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
- section->name,
- (unsigned long) (unit_start - section->start),
- dwarf_vmatoa ("x", unit_length));
- return 0;
- }
+ adr = constant_pool + name_offset;
+ /* PR 17531: file: 5b7b07ad. */
+ if (adr < constant_pool || adr >= section->start + section->size)
+ {
+ printf (_("[%3u] <corrupt offset: %x>"), i, name_offset);
+ warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"),
+ name_offset, i);
+ }
+ else
+ printf ("[%3u] %.*s:", i,
+ (int) (section->size - (constant_pool_offset + name_offset)),
+ constant_pool + name_offset);
- /* Get and check the version number. */
- SAFE_BYTE_GET_AND_INC (dwarf_version, hdrptr, 2, unit_end);
- printf (_("Version %ld\n"), (long) dwarf_version);
+ adr = constant_pool + cu_vector_offset;
+ if (adr < constant_pool || adr >= section->start + section->size - 3)
+ {
+ printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset);
+ warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"),
+ cu_vector_offset, i);
+ continue;
+ }
- /* Prior versions did not exist, and future versions may not be
- backwards compatible. */
- if (dwarf_version != 5)
- {
- warn (_("Only DWARF version 5 .debug_names "
- "is currently supported.\n"));
- return 0;
- }
+ num_cus = byte_get_little_endian (adr, 4);
- SAFE_BYTE_GET_AND_INC (padding, hdrptr, 2, unit_end);
- if (padding != 0)
- warn (_("Padding field of .debug_names must be 0 (found 0x%x)\n"),
- padding);
+ adr = constant_pool + cu_vector_offset + 4 + num_cus * 4;
+ if (num_cus * 4 < num_cus
+ || adr >= section->start + section->size
+ || adr < constant_pool)
+ {
+ printf ("<invalid number of CUs: %d>\n", num_cus);
+ warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"),
+ num_cus, i);
+ continue;
+ }
- SAFE_BYTE_GET_AND_INC (comp_unit_count, hdrptr, 4, unit_end);
- if (comp_unit_count == 0)
- warn (_("Compilation unit count must be >= 1 in .debug_names\n"));
+ if (num_cus > 1)
+ printf ("\n");
- SAFE_BYTE_GET_AND_INC (local_type_unit_count, hdrptr, 4, unit_end);
- SAFE_BYTE_GET_AND_INC (foreign_type_unit_count, hdrptr, 4, unit_end);
- SAFE_BYTE_GET_AND_INC (bucket_count, hdrptr, 4, unit_end);
- SAFE_BYTE_GET_AND_INC (name_count, hdrptr, 4, unit_end);
- SAFE_BYTE_GET_AND_INC (abbrev_table_size, hdrptr, 4, unit_end);
+ for (j = 0; j < num_cus; ++j)
+ {
+ int is_static;
+ gdb_index_symbol_kind kind;
- SAFE_BYTE_GET_AND_INC (augmentation_string_size, hdrptr, 4, unit_end);
- if (augmentation_string_size % 4 != 0)
- {
- warn (_("Augmentation string length %u must be rounded up "
- "to a multiple of 4 in .debug_names.\n"),
- augmentation_string_size);
- augmentation_string_size += (-augmentation_string_size) & 3;
+ cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4);
+ is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu);
+ kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu);
+ cu = GDB_INDEX_CU_VALUE (cu);
+ /* Convert to TU number if it's for a type unit. */
+ if (cu >= cu_list_elements / 2)
+ printf ("%cT%lu", num_cus > 1 ? '\t' : ' ',
+ (unsigned long) (cu - cu_list_elements / 2));
+ else
+ printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu);
+
+ printf (" [%s, %s]",
+ is_static ? _("static") : _("global"),
+ get_gdb_index_symbol_kind_name (kind));
+ if (num_cus > 1)
+ printf ("\n");
+ }
+ if (num_cus <= 1)
+ printf ("\n");
}
- printf (_("Augmentation string:"));
- for (i = 0; i < augmentation_string_size; i++)
- {
- unsigned char uc;
+ }
+
+ return 1;
+}
+
+/* Pre-allocate enough space for the CU/TU sets needed. */
+
+static void
+prealloc_cu_tu_list (unsigned int nshndx)
+{
+ if (shndx_pool == NULL)
+ {
+ shndx_pool_size = nshndx;
+ shndx_pool_used = 0;
+ shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size,
+ sizeof (unsigned int));
+ }
+ else
+ {
+ shndx_pool_size = shndx_pool_used + nshndx;
+ shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size,
+ sizeof (unsigned int));
+ }
+}
+
+static void
+add_shndx_to_cu_tu_entry (unsigned int shndx)
+{
+ if (shndx_pool_used >= shndx_pool_size)
+ {
+ error (_("Internal error: out of space in the shndx pool.\n"));
+ return;
+ }
+ shndx_pool [shndx_pool_used++] = shndx;
+}
+
+static void
+end_cu_tu_entry (void)
+{
+ if (shndx_pool_used >= shndx_pool_size)
+ {
+ error (_("Internal error: out of space in the shndx pool.\n"));
+ return;
+ }
+ shndx_pool [shndx_pool_used++] = 0;
+}
- SAFE_BYTE_GET_AND_INC (uc, hdrptr, 1, unit_end);
- printf (" %02x", uc);
- }
- putchar ('\n');
- putchar ('\n');
+/* Return the short name of a DWARF section given by a DW_SECT enumerator. */
- printf (_("CU table:\n"));
- for (i = 0; i < comp_unit_count; i++)
- {
- uint64_t cu_offset;
+static const char *
+get_DW_SECT_short_name (unsigned int dw_sect)
+{
+ static char buf[16];
- SAFE_BYTE_GET_AND_INC (cu_offset, hdrptr, offset_size, unit_end);
- printf (_("[%3u] 0x%lx\n"), i, (unsigned long) cu_offset);
- }
- putchar ('\n');
+ switch (dw_sect)
+ {
+ case DW_SECT_INFO:
+ return "info";
+ case DW_SECT_TYPES:
+ return "types";
+ case DW_SECT_ABBREV:
+ return "abbrev";
+ case DW_SECT_LINE:
+ return "line";
+ case DW_SECT_LOC:
+ return "loc";
+ case DW_SECT_STR_OFFSETS:
+ return "str_off";
+ case DW_SECT_MACINFO:
+ return "macinfo";
+ case DW_SECT_MACRO:
+ return "macro";
+ default:
+ break;
+ }
- printf (_("TU table:\n"));
- for (i = 0; i < local_type_unit_count; i++)
- {
- uint64_t tu_offset;
+ snprintf (buf, sizeof (buf), "%d", dw_sect);
+ return buf;
+}
- SAFE_BYTE_GET_AND_INC (tu_offset, hdrptr, offset_size, unit_end);
- printf (_("[%3u] 0x%lx\n"), i, (unsigned long) tu_offset);
- }
- putchar ('\n');
+/* Process a CU or TU index. If DO_DISPLAY is true, print the contents.
+ These sections are extensions for Fission.
+ See http://gcc.gnu.org/wiki/DebugFissionDWP. */
- printf (_("Foreign TU table:\n"));
- for (i = 0; i < foreign_type_unit_count; i++)
- {
- uint64_t signature;
+static int
+process_cu_tu_index (struct dwarf_section *section, int do_display)
+{
+ unsigned char *phdr = section->start;
+ unsigned char *limit = phdr + section->size;
+ unsigned char *phash;
+ unsigned char *pindex;
+ unsigned char *ppool;
+ unsigned int version;
+ unsigned int ncols = 0;
+ unsigned int nused;
+ unsigned int nslots;
+ unsigned int i;
+ unsigned int j;
+ dwarf_vma signature_high;
+ dwarf_vma signature_low;
+ char buf[64];
- SAFE_BYTE_GET_AND_INC (signature, hdrptr, 8, unit_end);
- printf (_("[%3u] "), i);
- print_dwarf_vma (signature, 8);
- putchar ('\n');
- }
- putchar ('\n');
+ /* PR 17512: file: 002-168123-0.004. */
+ if (phdr == NULL)
+ {
+ warn (_("Section %s is empty\n"), section->name);
+ return 0;
+ }
+ /* PR 17512: file: 002-376-0.004. */
+ if (section->size < 24)
+ {
+ warn (_("Section %s is too small to contain a CU/TU header\n"),
+ section->name);
+ return 0;
+ }
- const uint32_t *const hash_table_buckets = (uint32_t *) hdrptr;
- hdrptr += bucket_count * sizeof (uint32_t);
- const uint32_t *const hash_table_hashes = (uint32_t *) hdrptr;
- hdrptr += name_count * sizeof (uint32_t);
- unsigned char *const name_table_string_offsets = hdrptr;
- hdrptr += name_count * offset_size;
- unsigned char *const name_table_entry_offsets = hdrptr;
- hdrptr += name_count * offset_size;
- unsigned char *const abbrev_table = hdrptr;
- hdrptr += abbrev_table_size;
- const unsigned char *const abbrev_table_end = hdrptr;
- unsigned char *const entry_pool = hdrptr;
- if (hdrptr > unit_end)
- {
- warn (_("Entry pool offset (0x%lx) exceeds unit size 0x%lx "
- "for unit 0x%lx in the debug_names\n"),
- (long) (hdrptr - section->start),
- (long) (unit_end - section->start),
- (long) (unit_start - section->start));
- return 0;
- }
+ SAFE_BYTE_GET (version, phdr, 4, limit);
+ if (version >= 2)
+ SAFE_BYTE_GET (ncols, phdr + 4, 4, limit);
+ SAFE_BYTE_GET (nused, phdr + 8, 4, limit);
+ SAFE_BYTE_GET (nslots, phdr + 12, 4, limit);
- size_t buckets_filled = 0;
- size_t bucketi;
- for (bucketi = 0; bucketi < bucket_count; bucketi++)
- {
- const uint32_t bucket = hash_table_buckets[bucketi];
+ phash = phdr + 16;
+ pindex = phash + (size_t) nslots * 8;
+ ppool = pindex + (size_t) nslots * 4;
- if (bucket != 0)
- ++buckets_filled;
- }
- printf (_("Used %zu of %lu buckets.\n"), buckets_filled,
- (unsigned long) bucket_count);
+ if (do_display)
+ {
+ introduce (section, false);
- uint32_t hash_prev = 0;
- size_t hash_clash_count = 0;
- size_t longest_clash = 0;
- size_t this_length = 0;
- size_t hashi;
- for (hashi = 0; hashi < name_count; hashi++)
+ printf (_(" Version: %u\n"), version);
+ if (version >= 2)
+ printf (_(" Number of columns: %u\n"), ncols);
+ printf (_(" Number of used entries: %u\n"), nused);
+ printf (_(" Number of slots: %u\n\n"), nslots);
+ }
+
+ /* PR 17531: file: 45d69832. */
+ if ((size_t) nslots * 8 / 8 != nslots
+ || phash < phdr || phash > limit
+ || pindex < phash || pindex > limit
+ || ppool < pindex || ppool > limit)
+ {
+ warn (ngettext ("Section %s is too small for %u slot\n",
+ "Section %s is too small for %u slots\n",
+ nslots),
+ section->name, nslots);
+ return 0;
+ }
+
+ if (version == 1)
+ {
+ if (!do_display)
+ prealloc_cu_tu_list ((limit - ppool) / 4);
+ for (i = 0; i < nslots; i++)
{
- const uint32_t hash_this = hash_table_hashes[hashi];
+ unsigned char *shndx_list;
+ unsigned int shndx;
- if (hashi > 0)
+ SAFE_BYTE_GET64 (phash, &signature_high, &signature_low, limit);
+ if (signature_high != 0 || signature_low != 0)
{
- if (hash_prev % bucket_count == hash_this % bucket_count)
+ SAFE_BYTE_GET (j, pindex, 4, limit);
+ shndx_list = ppool + j * 4;
+ /* PR 17531: file: 705e010d. */
+ if (shndx_list < ppool)
{
- ++hash_clash_count;
- ++this_length;
- longest_clash = MAX (longest_clash, this_length);
+ warn (_("Section index pool located before start of section\n"));
+ return 0;
+ }
+
+ if (do_display)
+ printf (_(" [%3d] Signature: 0x%s Sections: "),
+ i, dwarf_vmatoa64 (signature_high, signature_low,
+ buf, sizeof (buf)));
+ for (;;)
+ {
+ if (shndx_list >= limit)
+ {
+ warn (_("Section %s too small for shndx pool\n"),
+ section->name);
+ return 0;
+ }
+ SAFE_BYTE_GET (shndx, shndx_list, 4, limit);
+ if (shndx == 0)
+ break;
+ if (do_display)
+ printf (" %d", shndx);
+ else
+ add_shndx_to_cu_tu_entry (shndx);
+ shndx_list += 4;
}
+ if (do_display)
+ printf ("\n");
else
- this_length = 0;
+ end_cu_tu_entry ();
}
- hash_prev = hash_this;
+ phash += 8;
+ pindex += 4;
}
- printf (_("Out of %lu items there are %zu bucket clashes"
- " (longest of %zu entries).\n"),
- (unsigned long) name_count, hash_clash_count, longest_clash);
- assert (name_count == buckets_filled + hash_clash_count);
+ }
+ else if (version == 2)
+ {
+ unsigned int val;
+ unsigned int dw_sect;
+ unsigned char *ph = phash;
+ unsigned char *pi = pindex;
+ unsigned char *poffsets = ppool + (size_t) ncols * 4;
+ unsigned char *psizes = poffsets + (size_t) nused * ncols * 4;
+ unsigned char *pend = psizes + (size_t) nused * ncols * 4;
+ bool is_tu_index;
+ struct cu_tu_set *this_set = NULL;
+ unsigned int row;
+ unsigned char *prow;
- struct abbrev_lookup_entry
- {
- dwarf_vma abbrev_tag;
- unsigned char *abbrev_lookup_ptr;
- };
- struct abbrev_lookup_entry *abbrev_lookup = NULL;
- size_t abbrev_lookup_used = 0;
- size_t abbrev_lookup_allocated = 0;
+ is_tu_index = strcmp (section->name, ".debug_tu_index") == 0;
- unsigned char *abbrevptr = abbrev_table;
- for (;;)
+ /* PR 17531: file: 0dd159bf.
+ Check for integer overflow (can occur when size_t is 32-bit)
+ with overlarge ncols or nused values. */
+ if (ncols > 0
+ && ((size_t) ncols * 4 / 4 != ncols
+ || (size_t) nused * ncols * 4 / ((size_t) ncols * 4) != nused
+ || poffsets < ppool || poffsets > limit
+ || psizes < poffsets || psizes > limit
+ || pend < psizes || pend > limit))
{
- unsigned int bytes_read;
- const dwarf_vma abbrev_tag = read_uleb128 (abbrevptr, &bytes_read,
- abbrev_table_end);
- abbrevptr += bytes_read;
- if (abbrev_tag == 0)
- break;
- if (abbrev_lookup_used == abbrev_lookup_allocated)
- {
- abbrev_lookup_allocated = MAX (0x100,
- abbrev_lookup_allocated * 2);
- abbrev_lookup = xrealloc (abbrev_lookup,
- (abbrev_lookup_allocated
- * sizeof (*abbrev_lookup)));
- }
- assert (abbrev_lookup_used < abbrev_lookup_allocated);
- struct abbrev_lookup_entry *entry;
- for (entry = abbrev_lookup;
- entry < abbrev_lookup + abbrev_lookup_used;
- entry++)
- if (entry->abbrev_tag == abbrev_tag)
- {
- warn (_("Duplicate abbreviation tag %lu "
- "in unit 0x%lx in the debug_names\n"),
- (long) abbrev_tag, (long) (unit_start - section->start));
- break;
- }
- entry = &abbrev_lookup[abbrev_lookup_used++];
- entry->abbrev_tag = abbrev_tag;
- entry->abbrev_lookup_ptr = abbrevptr;
+ warn (_("Section %s too small for offset and size tables\n"),
+ section->name);
+ return 0;
+ }
- /* Skip DWARF tag. */
- read_uleb128 (abbrevptr, &bytes_read, abbrev_table_end);
- abbrevptr += bytes_read;
- for (;;)
+ if (do_display)
+ {
+ printf (_(" Offset table\n"));
+ printf (" slot %-16s ",
+ is_tu_index ? _("signature") : _("dwo_id"));
+ }
+ else
+ {
+ if (is_tu_index)
{
- const dwarf_vma xindex = read_uleb128 (abbrevptr,
- &bytes_read,
- abbrev_table_end);
- abbrevptr += bytes_read;
- const dwarf_vma form = read_uleb128 (abbrevptr, &bytes_read,
- abbrev_table_end);
- abbrevptr += bytes_read;
- if (xindex == 0 && form == 0)
- break;
+ tu_count = nused;
+ tu_sets = xcalloc2 (nused, sizeof (struct cu_tu_set));
+ this_set = tu_sets;
+ }
+ else
+ {
+ cu_count = nused;
+ cu_sets = xcalloc2 (nused, sizeof (struct cu_tu_set));
+ this_set = cu_sets;
}
}
- printf (_("\nSymbol table:\n"));
- uint32_t namei;
- for (namei = 0; namei < name_count; ++namei)
+ if (do_display)
{
- uint64_t string_offset, entry_offset;
-
- SAFE_BYTE_GET (string_offset,
- name_table_string_offsets + namei * offset_size,
- offset_size, unit_end);
- SAFE_BYTE_GET (entry_offset,
- name_table_entry_offsets + namei * offset_size,
- offset_size, unit_end);
-
- printf ("[%3u] #%08x %s:", namei, hash_table_hashes[namei],
- fetch_indirect_string (string_offset));
+ for (j = 0; j < ncols; j++)
+ {
+ SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
+ printf (" %8s", get_DW_SECT_short_name (dw_sect));
+ }
+ printf ("\n");
+ }
- unsigned char *entryptr = entry_pool + entry_offset;
+ for (i = 0; i < nslots; i++)
+ {
+ SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit);
- // We need to scan first whether there is a single or multiple
- // entries. TAGNO is -2 for the first entry, it is -1 for the
- // initial tag read of the second entry, then it becomes 0 for the
- // first entry for real printing etc.
- int tagno = -2;
- /* Initialize it due to a false compiler warning. */
- dwarf_vma second_abbrev_tag = -1;
- for (;;)
+ SAFE_BYTE_GET (row, pi, 4, limit);
+ if (row != 0)
{
- unsigned int bytes_read;
- const dwarf_vma abbrev_tag = read_uleb128 (entryptr, &bytes_read,
- unit_end);
- entryptr += bytes_read;
- if (tagno == -1)
+ /* PR 17531: file: a05f6ab3. */
+ if (row > nused)
{
- second_abbrev_tag = abbrev_tag;
- tagno = 0;
- entryptr = entry_pool + entry_offset;
- continue;
+ warn (_("Row index (%u) is larger than number of used entries (%u)\n"),
+ row, nused);
+ return 0;
}
- if (abbrev_tag == 0)
- break;
- if (tagno >= 0)
- printf ("%s<%lu>",
- (tagno == 0 && second_abbrev_tag == 0 ? " " : "\n\t"),
- (unsigned long) abbrev_tag);
- const struct abbrev_lookup_entry *entry;
- for (entry = abbrev_lookup;
- entry < abbrev_lookup + abbrev_lookup_used;
- entry++)
- if (entry->abbrev_tag == abbrev_tag)
- break;
- if (entry >= abbrev_lookup + abbrev_lookup_used)
+ if (!do_display)
{
- warn (_("Undefined abbreviation tag %lu "
- "in unit 0x%lx in the debug_names\n"),
- (long) abbrev_tag,
- (long) (unit_start - section->start));
- break;
+ size_t num_copy = sizeof (uint64_t);
+
+ /* PR 23064: Beware of buffer overflow. */
+ if (ph + num_copy < limit)
+ memcpy (&this_set[row - 1].signature, ph, num_copy);
+ else
+ {
+ warn (_("Signature (%p) extends beyond end of space in section\n"), ph);
+ return 0;
+ }
}
- abbrevptr = entry->abbrev_lookup_ptr;
- const dwarf_vma dwarf_tag = read_uleb128 (abbrevptr, &bytes_read,
- abbrev_table_end);
- abbrevptr += bytes_read;
- if (tagno >= 0)
- printf (" %s", get_TAG_name (dwarf_tag));
- for (;;)
+
+ prow = poffsets + (row - 1) * ncols * 4;
+ /* PR 17531: file: b8ce60a8. */
+ if (prow < poffsets || prow > limit)
{
- const dwarf_vma xindex = read_uleb128 (abbrevptr,
- &bytes_read,
- abbrev_table_end);
- abbrevptr += bytes_read;
- const dwarf_vma form = read_uleb128 (abbrevptr, &bytes_read,
- abbrev_table_end);
- abbrevptr += bytes_read;
- if (xindex == 0 && form == 0)
- break;
+ warn (_("Row index (%u) * num columns (%u) > space remaining in section\n"),
+ row, ncols);
+ return 0;
+ }
- if (tagno >= 0)
- printf (" %s", get_IDX_name (xindex));
- entryptr = read_and_display_attr_value (0, form, 0, entryptr,
- unit_end, 0, 0,
- offset_size,
- dwarf_version, NULL,
- (tagno < 0), NULL,
- NULL, '=');
+ if (do_display)
+ printf (_(" [%3d] 0x%s"),
+ i, dwarf_vmatoa64 (signature_high, signature_low,
+ buf, sizeof (buf)));
+ for (j = 0; j < ncols; j++)
+ {
+ SAFE_BYTE_GET (val, prow + j * 4, 4, limit);
+ if (do_display)
+ printf (" %8d", val);
+ else
+ {
+ SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
+
+ /* PR 17531: file: 10796eb3. */
+ if (dw_sect >= DW_SECT_MAX)
+ warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect);
+ else
+ this_set [row - 1].section_offsets [dw_sect] = val;
+ }
}
- ++tagno;
+
+ if (do_display)
+ printf ("\n");
}
- if (tagno <= 0)
- printf (_(" <no entries>"));
- putchar ('\n');
+ ph += 8;
+ pi += 4;
}
- free (abbrev_lookup);
- }
+ ph = phash;
+ pi = pindex;
+ if (do_display)
+ {
+ printf ("\n");
+ printf (_(" Size table\n"));
+ printf (" slot %-16s ",
+ is_tu_index ? _("signature") : _("dwo_id"));
+ }
- return 1;
-}
+ for (j = 0; j < ncols; j++)
+ {
+ SAFE_BYTE_GET (val, ppool + j * 4, 4, limit);
+ if (do_display)
+ printf (" %8s", get_DW_SECT_short_name (val));
+ }
-static int
-display_gdb_index (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- unsigned char *start = section->start;
- uint32_t version;
- uint32_t cu_list_offset, tu_list_offset;
- uint32_t address_table_offset, symbol_table_offset, constant_pool_offset;
- unsigned int cu_list_elements, tu_list_elements;
- unsigned int address_table_size, symbol_table_slots;
- unsigned char *cu_list, *tu_list;
- unsigned char *address_table, *symbol_table, *constant_pool;
- unsigned int i;
+ if (do_display)
+ printf ("\n");
- /* The documentation for the format of this file is in gdb/dwarf2read.c. */
+ for (i = 0; i < nslots; i++)
+ {
+ SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit);
- printf (_("Contents of the %s section:\n"), section->name);
+ SAFE_BYTE_GET (row, pi, 4, limit);
+ if (row != 0)
+ {
+ prow = psizes + (row - 1) * ncols * 4;
- if (section->size < 6 * sizeof (uint32_t))
- {
- warn (_("Truncated header in the %s section.\n"), section->name);
- return 0;
- }
+ if (do_display)
+ printf (_(" [%3d] 0x%s"),
+ i, dwarf_vmatoa64 (signature_high, signature_low,
+ buf, sizeof (buf)));
- version = byte_get_little_endian (start, 4);
- printf (_("Version %ld\n"), (long) version);
+ for (j = 0; j < ncols; j++)
+ {
+ SAFE_BYTE_GET (val, prow + j * 4, 4, limit);
+ if (do_display)
+ printf (" %8d", val);
+ else
+ {
+ SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
+ if (dw_sect >= DW_SECT_MAX)
+ warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect);
+ else
+ this_set [row - 1].section_sizes [dw_sect] = val;
+ }
+ }
- /* Prior versions are obsolete, and future versions may not be
- backwards compatible. */
- if (version < 3 || version > 8)
- {
- warn (_("Unsupported version %lu.\n"), (unsigned long) version);
- return 0;
+ if (do_display)
+ printf ("\n");
+ }
+
+ ph += 8;
+ pi += 4;
+ }
}
- if (version < 4)
- warn (_("The address table data in version 3 may be wrong.\n"));
- if (version < 5)
- warn (_("Version 4 does not support case insensitive lookups.\n"));
- if (version < 6)
- warn (_("Version 5 does not include inlined functions.\n"));
- if (version < 7)
- warn (_("Version 6 does not include symbol attributes.\n"));
- /* Version 7 indices generated by Gold have bad type unit references,
- PR binutils/15021. But we don't know if the index was generated by
- Gold or not, so to avoid worrying users with gdb-generated indices
- we say nothing for version 7 here. */
+ else if (do_display)
+ printf (_(" Unsupported version (%d)\n"), version);
- cu_list_offset = byte_get_little_endian (start + 4, 4);
- tu_list_offset = byte_get_little_endian (start + 8, 4);
- address_table_offset = byte_get_little_endian (start + 12, 4);
- symbol_table_offset = byte_get_little_endian (start + 16, 4);
- constant_pool_offset = byte_get_little_endian (start + 20, 4);
+ if (do_display)
+ printf ("\n");
- if (cu_list_offset > section->size
- || tu_list_offset > section->size
- || address_table_offset > section->size
- || symbol_table_offset > section->size
- || constant_pool_offset > section->size)
- {
- warn (_("Corrupt header in the %s section.\n"), section->name);
- return 0;
- }
+ return 1;
+}
- /* PR 17531: file: 418d0a8a. */
- if (tu_list_offset < cu_list_offset)
- {
- warn (_("TU offset (%x) is less than CU offset (%x)\n"),
- tu_list_offset, cu_list_offset);
- return 0;
- }
+static int cu_tu_indexes_read = -1; /* Tri-state variable. */
+
+/* Load the CU and TU indexes if present. This will build a list of
+ section sets that we can use to associate a .debug_info.dwo section
+ with its associated .debug_abbrev.dwo section in a .dwp file. */
+
+static bool
+load_cu_tu_indexes (void *file)
+{
+ /* If we have already loaded (or tried to load) the CU and TU indexes
+ then do not bother to repeat the task. */
+ if (cu_tu_indexes_read == -1)
+ {
+ cu_tu_indexes_read = true;
- cu_list_elements = (tu_list_offset - cu_list_offset) / 8;
+ if (load_debug_section_with_follow (dwp_cu_index, file))
+ if (! process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0))
+ cu_tu_indexes_read = false;
- if (address_table_offset < tu_list_offset)
- {
- warn (_("Address table offset (%x) is less than TU offset (%x)\n"),
- address_table_offset, tu_list_offset);
- return 0;
+ if (load_debug_section_with_follow (dwp_tu_index, file))
+ if (! process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0))
+ cu_tu_indexes_read = false;
}
- tu_list_elements = (address_table_offset - tu_list_offset) / 8;
+ return (bool) cu_tu_indexes_read;
+}
- /* PR 17531: file: 18a47d3d. */
- if (symbol_table_offset < address_table_offset)
- {
- warn (_("Symbol table offset (%x) is less then Address table offset (%x)\n"),
- symbol_table_offset, address_table_offset);
- return 0;
- }
+/* Find the set of sections that includes section SHNDX. */
- address_table_size = symbol_table_offset - address_table_offset;
+unsigned int *
+find_cu_tu_set (void *file, unsigned int shndx)
+{
+ unsigned int i;
- if (constant_pool_offset < symbol_table_offset)
- {
- warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"),
- constant_pool_offset, symbol_table_offset);
- return 0;
- }
+ if (! load_cu_tu_indexes (file))
+ return NULL;
- symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8;
+ /* Find SHNDX in the shndx pool. */
+ for (i = 0; i < shndx_pool_used; i++)
+ if (shndx_pool [i] == shndx)
+ break;
- cu_list = start + cu_list_offset;
- tu_list = start + tu_list_offset;
- address_table = start + address_table_offset;
- symbol_table = start + symbol_table_offset;
- constant_pool = start + constant_pool_offset;
+ if (i >= shndx_pool_used)
+ return NULL;
- if (address_table + address_table_size > section->start + section->size)
- {
- warn (_("Address table extends beyond end of section.\n"));
- return 0;
- }
+ /* Now backup to find the first entry in the set. */
+ while (i > 0 && shndx_pool [i - 1] != 0)
+ i--;
- printf (_("\nCU table:\n"));
- for (i = 0; i < cu_list_elements; i += 2)
- {
- uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8);
- uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8);
+ return shndx_pool + i;
+}
- printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2,
- (unsigned long) cu_offset,
- (unsigned long) (cu_offset + cu_length - 1));
- }
+/* Display a .debug_cu_index or .debug_tu_index section. */
- printf (_("\nTU table:\n"));
- for (i = 0; i < tu_list_elements; i += 3)
- {
- uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8);
- uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8);
- uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8);
+static int
+display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED)
+{
+ return process_cu_tu_index (section, 1);
+}
- printf (_("[%3u] 0x%lx 0x%lx "), i / 3,
- (unsigned long) tu_offset,
- (unsigned long) type_offset);
- print_dwarf_vma (signature, 8);
- printf ("\n");
- }
+static int
+display_debug_not_supported (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
+{
+ printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
+ section->name);
- printf (_("\nAddress table:\n"));
- for (i = 0; i < address_table_size && i <= address_table_size - (2 * 8 + 4);
- i += 2 * 8 + 4)
- {
- uint64_t low = byte_get_little_endian (address_table + i, 8);
- uint64_t high = byte_get_little_endian (address_table + i + 8, 8);
- uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4);
+ return 1;
+}
- print_dwarf_vma (low, 8);
- print_dwarf_vma (high, 8);
- printf (_("%lu\n"), (unsigned long) cu_index);
- }
+/* Like malloc, but takes two parameters like calloc.
+ Verifies that the first parameter is not too large.
+ Note: does *not* initialise the allocated memory to zero. */
- printf (_("\nSymbol table:\n"));
- for (i = 0; i < symbol_table_slots; ++i)
- {
- uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4);
- uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4);
- uint32_t num_cus, cu;
+void *
+cmalloc (size_t nmemb, size_t size)
+{
+ /* Check for overflow. */
+ if (nmemb >= ~(size_t) 0 / size)
+ return NULL;
- if (name_offset != 0
- || cu_vector_offset != 0)
- {
- unsigned int j;
- unsigned char * adr;
+ return xmalloc (nmemb * size);
+}
- adr = constant_pool + name_offset;
- /* PR 17531: file: 5b7b07ad. */
- if (adr < constant_pool || adr >= section->start + section->size)
- {
- printf (_("[%3u] <corrupt offset: %x>"), i, name_offset);
- warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"),
- name_offset, i);
- }
- else
- printf ("[%3u] %.*s:", i,
- (int) (section->size - (constant_pool_offset + name_offset)),
- constant_pool + name_offset);
+/* Like xmalloc, but takes two parameters like calloc.
+ Verifies that the first parameter is not too large.
+ Note: does *not* initialise the allocated memory to zero. */
- adr = constant_pool + cu_vector_offset;
- if (adr < constant_pool || adr >= section->start + section->size - 3)
- {
- printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset);
- warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"),
- cu_vector_offset, i);
- continue;
- }
+void *
+xcmalloc (size_t nmemb, size_t size)
+{
+ /* Check for overflow. */
+ if (nmemb >= ~(size_t) 0 / size)
+ {
+ fprintf (stderr,
+ _("Attempt to allocate an array with an excessive number of elements: 0x%lx\n"),
+ (long) nmemb);
+ xexit (1);
+ }
- num_cus = byte_get_little_endian (adr, 4);
+ return xmalloc (nmemb * size);
+}
- adr = constant_pool + cu_vector_offset + 4 + num_cus * 4;
- if (num_cus * 4 < num_cus
- || adr >= section->start + section->size
- || adr < constant_pool)
- {
- printf ("<invalid number of CUs: %d>\n", num_cus);
- warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"),
- num_cus, i);
- continue;
- }
+/* Like xrealloc, but takes three parameters.
+ Verifies that the second parameter is not too large.
+ Note: does *not* initialise any new memory to zero. */
- if (num_cus > 1)
- printf ("\n");
+void *
+xcrealloc (void *ptr, size_t nmemb, size_t size)
+{
+ /* Check for overflow. */
+ if (nmemb >= ~(size_t) 0 / size)
+ {
+ error (_("Attempt to re-allocate an array with an excessive number of elements: 0x%lx\n"),
+ (long) nmemb);
+ xexit (1);
+ }
- for (j = 0; j < num_cus; ++j)
- {
- int is_static;
- gdb_index_symbol_kind kind;
+ return xrealloc (ptr, nmemb * size);
+}
- cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4);
- is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu);
- kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu);
- cu = GDB_INDEX_CU_VALUE (cu);
- /* Convert to TU number if it's for a type unit. */
- if (cu >= cu_list_elements / 2)
- printf ("%cT%lu", num_cus > 1 ? '\t' : ' ',
- (unsigned long) (cu - cu_list_elements / 2));
- else
- printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu);
+/* Like xcalloc, but verifies that the first parameter is not too large. */
- printf (" [%s, %s]",
- is_static ? _("static") : _("global"),
- get_gdb_index_symbol_kind_name (kind));
- if (num_cus > 1)
- printf ("\n");
- }
- if (num_cus <= 1)
- printf ("\n");
- }
+void *
+xcalloc2 (size_t nmemb, size_t size)
+{
+ /* Check for overflow. */
+ if (nmemb >= ~(size_t) 0 / size)
+ {
+ error (_("Attempt to allocate a zero'ed array with an excessive number of elements: 0x%lx\n"),
+ (long) nmemb);
+ xexit (1);
}
- return 1;
+ return xcalloc (nmemb, size);
}
-/* Pre-allocate enough space for the CU/TU sets needed. */
+static unsigned long
+calc_gnu_debuglink_crc32 (unsigned long crc,
+ const unsigned char * buf,
+ bfd_size_type len)
+{
+ static const unsigned long crc32_table[256] =
+ {
+ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
+ 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
+ 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
+ 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+ 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
+ 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+ 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
+ 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+ 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
+ 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
+ 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
+ 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+ 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
+ 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
+ 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
+ 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+ 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
+ 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+ 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
+ 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+ 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
+ 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
+ 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
+ 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+ 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
+ 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
+ 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
+ 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+ 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
+ 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+ 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
+ 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+ 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
+ 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
+ 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
+ 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+ 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
+ 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
+ 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
+ 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+ 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
+ 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+ 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
+ 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+ 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
+ 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
+ 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
+ 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+ 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
+ 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
+ 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
+ 0x2d02ef8d
+ };
+ const unsigned char *end;
-static void
-prealloc_cu_tu_list (unsigned int nshndx)
+ crc = ~crc & 0xffffffff;
+ for (end = buf + len; buf < end; ++ buf)
+ crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+ return ~crc & 0xffffffff;
+}
+
+typedef bool (*check_func_type) (const char *, void *);
+typedef const char *(* parse_func_type) (struct dwarf_section *, void *);
+
+static bool
+check_gnu_debuglink (const char * pathname, void * crc_pointer)
{
- if (shndx_pool == NULL)
+ static unsigned char buffer [8 * 1024];
+ FILE * f;
+ bfd_size_type count;
+ unsigned long crc = 0;
+ void * sep_data;
+
+ sep_data = open_debug_file (pathname);
+ if (sep_data == NULL)
+ return false;
+
+ /* Yes - we are opening the file twice... */
+ f = fopen (pathname, "rb");
+ if (f == NULL)
{
- shndx_pool_size = nshndx;
- shndx_pool_used = 0;
- shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size,
- sizeof (unsigned int));
+ /* Paranoia: This should never happen. */
+ close_debug_file (sep_data);
+ warn (_("Unable to reopen separate debug info file: %s\n"), pathname);
+ return false;
}
- else
+
+ while ((count = fread (buffer, 1, sizeof (buffer), f)) > 0)
+ crc = calc_gnu_debuglink_crc32 (crc, buffer, count);
+
+ fclose (f);
+
+ if (crc != * (unsigned long *) crc_pointer)
{
- shndx_pool_size = shndx_pool_used + nshndx;
- shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size,
- sizeof (unsigned int));
+ close_debug_file (sep_data);
+ warn (_("Separate debug info file %s found, but CRC does not match - ignoring\n"),
+ pathname);
+ return false;
}
+
+ return true;
}
-static void
-add_shndx_to_cu_tu_entry (unsigned int shndx)
+static const char *
+parse_gnu_debuglink (struct dwarf_section * section, void * data)
{
- if (shndx_pool_used >= shndx_pool_size)
- {
- error (_("Internal error: out of space in the shndx pool.\n"));
- return;
- }
- shndx_pool [shndx_pool_used++] = shndx;
+ const char * name;
+ unsigned int crc_offset;
+ unsigned long * crc32 = (unsigned long *) data;
+
+ /* The name is first.
+ The CRC value is stored after the filename, aligned up to 4 bytes. */
+ name = (const char *) section->start;
+
+ crc_offset = strnlen (name, section->size) + 1;
+ crc_offset = (crc_offset + 3) & ~3;
+ if (crc_offset + 4 > section->size)
+ return NULL;
+
+ * crc32 = byte_get (section->start + crc_offset, 4);
+ return name;
}
-static void
-end_cu_tu_entry (void)
+static bool
+check_gnu_debugaltlink (const char * filename, void * data ATTRIBUTE_UNUSED)
{
- if (shndx_pool_used >= shndx_pool_size)
- {
- error (_("Internal error: out of space in the shndx pool.\n"));
- return;
- }
- shndx_pool [shndx_pool_used++] = 0;
+ void * sep_data = open_debug_file (filename);
+
+ if (sep_data == NULL)
+ return false;
+
+ /* FIXME: We should now extract the build-id in the separate file
+ and check it... */
+
+ return true;
}
-/* Return the short name of a DWARF section given by a DW_SECT enumerator. */
+typedef struct build_id_data
+{
+ bfd_size_type len;
+ const unsigned char * data;
+} Build_id_data;
static const char *
-get_DW_SECT_short_name (unsigned int dw_sect)
+parse_gnu_debugaltlink (struct dwarf_section * section, void * data)
{
- static char buf[16];
+ const char * name;
+ bfd_size_type namelen;
+ bfd_size_type id_len;
+ Build_id_data * build_id_data;
- switch (dw_sect)
- {
- case DW_SECT_INFO:
- return "info";
- case DW_SECT_TYPES:
- return "types";
- case DW_SECT_ABBREV:
- return "abbrev";
- case DW_SECT_LINE:
- return "line";
- case DW_SECT_LOC:
- return "loc";
- case DW_SECT_STR_OFFSETS:
- return "str_off";
- case DW_SECT_MACINFO:
- return "macinfo";
- case DW_SECT_MACRO:
- return "macro";
- default:
- break;
- }
+ /* The name is first.
+ The build-id follows immediately, with no padding, up to the section's end. */
- snprintf (buf, sizeof (buf), "%d", dw_sect);
- return buf;
+ name = (const char *) section->start;
+ namelen = strnlen (name, section->size) + 1;
+ if (namelen >= section->size)
+ return NULL;
+
+ id_len = section->size - namelen;
+ if (id_len < 0x14)
+ return NULL;
+
+ build_id_data = (Build_id_data *) data;
+ build_id_data->len = id_len;
+ build_id_data->data = section->start + namelen;
+
+ return name;
}
-/* Process a CU or TU index. If DO_DISPLAY is true, print the contents.
- These sections are extensions for Fission.
- See http://gcc.gnu.org/wiki/DebugFissionDWP. */
+static void
+add_separate_debug_file (const char * filename, void * handle)
+{
+ separate_info * i = xmalloc (sizeof * i);
-static int
-process_cu_tu_index (struct dwarf_section *section, int do_display)
+ i->filename = filename;
+ i->handle = handle;
+ i->next = first_separate_info;
+ first_separate_info = i;
+}
+
+#if HAVE_LIBDEBUGINFOD
+/* Query debuginfod servers for the target debuglink or debugaltlink
+ file. If successful, store the path of the file in filename and
+ return TRUE, otherwise return FALSE. */
+
+static bool
+debuginfod_fetch_separate_debug_info (struct dwarf_section * section,
+ char ** filename,
+ void * file)
{
- unsigned char *phdr = section->start;
- unsigned char *limit = phdr + section->size;
- unsigned char *phash;
- unsigned char *pindex;
- unsigned char *ppool;
- unsigned int version;
- unsigned int ncols = 0;
- unsigned int nused;
- unsigned int nslots;
- unsigned int i;
- unsigned int j;
- dwarf_vma signature_high;
- dwarf_vma signature_low;
- char buf[64];
+ size_t build_id_len;
+ unsigned char * build_id;
- /* PR 17512: file: 002-168123-0.004. */
- if (phdr == NULL)
+ if (strcmp (section->uncompressed_name, ".gnu_debuglink") == 0)
{
- warn (_("Section %s is empty\n"), section->name);
- return 0;
+ /* Get the build-id of file. */
+ build_id = get_build_id (file);
+ build_id_len = 0;
}
- /* PR 17512: file: 002-376-0.004. */
- if (section->size < 24)
+ else if (strcmp (section->uncompressed_name, ".gnu_debugaltlink") == 0)
{
- warn (_("Section %s is too small to contain a CU/TU header\n"),
- section->name);
- return 0;
- }
+ /* Get the build-id of the debugaltlink file. */
+ unsigned int filelen;
- SAFE_BYTE_GET (version, phdr, 4, limit);
- if (version >= 2)
- SAFE_BYTE_GET (ncols, phdr + 4, 4, limit);
- SAFE_BYTE_GET (nused, phdr + 8, 4, limit);
- SAFE_BYTE_GET (nslots, phdr + 12, 4, limit);
+ filelen = strnlen ((const char *)section->start, section->size);
+ if (filelen == section->size)
+ /* Corrupt debugaltlink. */
+ return false;
- phash = phdr + 16;
- pindex = phash + nslots * 8;
- ppool = pindex + nslots * 4;
+ build_id = section->start + filelen + 1;
+ build_id_len = section->size - (filelen + 1);
- /* PR 17531: file: 45d69832. */
- if (pindex < phash || ppool < phdr || (pindex == phash && nslots != 0))
- {
- warn (_("Section %s is too small for %d slots\n"),
- section->name, nslots);
- return 0;
+ if (build_id_len == 0)
+ return false;
}
+ else
+ return false;
- if (do_display)
+ if (build_id)
{
- printf (_("Contents of the %s section:\n\n"), section->name);
- printf (_(" Version: %d\n"), version);
- if (version >= 2)
- printf (_(" Number of columns: %d\n"), ncols);
- printf (_(" Number of used entries: %d\n"), nused);
- printf (_(" Number of slots: %d\n\n"), nslots);
- }
+ int fd;
+ debuginfod_client * client;
- if (ppool > limit || ppool < phdr)
- {
- warn (_("Section %s too small for %d hash table entries\n"),
- section->name, nslots);
- return 0;
- }
+ client = debuginfod_begin ();
+ if (client == NULL)
+ return false;
- if (version == 1)
- {
- if (!do_display)
- prealloc_cu_tu_list ((limit - ppool) / 4);
- for (i = 0; i < nslots; i++)
- {
- unsigned char *shndx_list;
- unsigned int shndx;
+ /* Query debuginfod servers for the target file. If found its path
+ will be stored in filename. */
+ fd = debuginfod_find_debuginfo (client, build_id, build_id_len, filename);
+ debuginfod_end (client);
- SAFE_BYTE_GET64 (phash, &signature_high, &signature_low, limit);
- if (signature_high != 0 || signature_low != 0)
- {
- SAFE_BYTE_GET (j, pindex, 4, limit);
- shndx_list = ppool + j * 4;
- /* PR 17531: file: 705e010d. */
- if (shndx_list < ppool)
- {
- warn (_("Section index pool located before start of section\n"));
- return 0;
- }
+ /* Only free build_id if we allocated space for a hex string
+ in get_build_id (). */
+ if (build_id_len == 0)
+ free (build_id);
- if (do_display)
- printf (_(" [%3d] Signature: 0x%s Sections: "),
- i, dwarf_vmatoa64 (signature_high, signature_low,
- buf, sizeof (buf)));
- for (;;)
- {
- if (shndx_list >= limit)
- {
- warn (_("Section %s too small for shndx pool\n"),
- section->name);
- return 0;
- }
- SAFE_BYTE_GET (shndx, shndx_list, 4, limit);
- if (shndx == 0)
- break;
- if (do_display)
- printf (" %d", shndx);
- else
- add_shndx_to_cu_tu_entry (shndx);
- shndx_list += 4;
- }
- if (do_display)
- printf ("\n");
- else
- end_cu_tu_entry ();
- }
- phash += 8;
- pindex += 4;
- }
+ if (fd >= 0)
+ {
+ /* File successfully retrieved. Close fd since we want to
+ use open_debug_file () on filename instead. */
+ close (fd);
+ return true;
+ }
}
- else if (version == 2)
+
+ return false;
+}
+#endif
+
+static void *
+load_separate_debug_info (const char * main_filename,
+ struct dwarf_section * xlink,
+ parse_func_type parse_func,
+ check_func_type check_func,
+ void * func_data,
+ void * file ATTRIBUTE_UNUSED)
+{
+ const char * separate_filename;
+ char * debug_filename;
+ char * canon_dir;
+ size_t canon_dirlen;
+ size_t dirlen;
+
+ if ((separate_filename = parse_func (xlink, func_data)) == NULL)
{
- unsigned int val;
- unsigned int dw_sect;
- unsigned char *ph = phash;
- unsigned char *pi = pindex;
- unsigned char *poffsets = ppool + ncols * 4;
- unsigned char *psizes = poffsets + nused * ncols * 4;
- unsigned char *pend = psizes + nused * ncols * 4;
- bfd_boolean is_tu_index;
- struct cu_tu_set *this_set = NULL;
- unsigned int row;
- unsigned char *prow;
+ warn (_("Corrupt debuglink section: %s\n"),
+ xlink->name ? xlink->name : xlink->uncompressed_name);
+ return NULL;
+ }
- is_tu_index = strcmp (section->name, ".debug_tu_index") == 0;
+ /* Attempt to locate the separate file.
+ This should duplicate the logic in bfd/opncls.c:find_separate_debug_file(). */
- /* PR 17531: file: 0dd159bf.
- Check for wraparound with an overlarge ncols value. */
- if (poffsets < ppool || (unsigned int) ((poffsets - ppool) / 4) != ncols)
- {
- warn (_("Overlarge number of columns: %x\n"), ncols);
- return 0;
- }
+ canon_dir = lrealpath (main_filename);
- if (pend > limit)
- {
- warn (_("Section %s too small for offset and size tables\n"),
- section->name);
- return 0;
- }
+ for (canon_dirlen = strlen (canon_dir); canon_dirlen > 0; canon_dirlen--)
+ if (IS_DIR_SEPARATOR (canon_dir[canon_dirlen - 1]))
+ break;
+ canon_dir[canon_dirlen] = '\0';
- if (do_display)
- {
- printf (_(" Offset table\n"));
- printf (" slot %-16s ",
- is_tu_index ? _("signature") : _("dwo_id"));
- }
- else
- {
- if (is_tu_index)
- {
- tu_count = nused;
- tu_sets = xcalloc2 (nused, sizeof (struct cu_tu_set));
- this_set = tu_sets;
- }
- else
- {
- cu_count = nused;
- cu_sets = xcalloc2 (nused, sizeof (struct cu_tu_set));
- this_set = cu_sets;
- }
- }
+#ifndef DEBUGDIR
+#define DEBUGDIR "/lib/debug"
+#endif
+#ifndef EXTRA_DEBUG_ROOT1
+#define EXTRA_DEBUG_ROOT1 "/usr/lib/debug"
+#endif
+#ifndef EXTRA_DEBUG_ROOT2
+#define EXTRA_DEBUG_ROOT2 "/usr/lib/debug/usr"
+#endif
- if (do_display)
- {
- for (j = 0; j < ncols; j++)
- {
- SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
- printf (" %8s", get_DW_SECT_short_name (dw_sect));
- }
- printf ("\n");
- }
+ debug_filename = (char *) malloc (strlen (DEBUGDIR) + 1
+ + canon_dirlen
+ + strlen (".debug/")
+#ifdef EXTRA_DEBUG_ROOT1
+ + strlen (EXTRA_DEBUG_ROOT1)
+#endif
+#ifdef EXTRA_DEBUG_ROOT2
+ + strlen (EXTRA_DEBUG_ROOT2)
+#endif
+ + strlen (separate_filename)
+ + 1);
+ if (debug_filename == NULL)
+ {
+ warn (_("Out of memory"));
+ free (canon_dir);
+ return NULL;
+ }
- for (i = 0; i < nslots; i++)
- {
- SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit);
+ /* First try in the current directory. */
+ sprintf (debug_filename, "%s", separate_filename);
+ if (check_func (debug_filename, func_data))
+ goto found;
+
+ /* Then try in a subdirectory called .debug. */
+ sprintf (debug_filename, ".debug/%s", separate_filename);
+ if (check_func (debug_filename, func_data))
+ goto found;
+
+ /* Then try in the same directory as the original file. */
+ sprintf (debug_filename, "%s%s", canon_dir, separate_filename);
+ if (check_func (debug_filename, func_data))
+ goto found;
+
+ /* And the .debug subdirectory of that directory. */
+ sprintf (debug_filename, "%s.debug/%s", canon_dir, separate_filename);
+ if (check_func (debug_filename, func_data))
+ goto found;
+
+#ifdef EXTRA_DEBUG_ROOT1
+ /* Try the first extra debug file root. */
+ sprintf (debug_filename, "%s/%s", EXTRA_DEBUG_ROOT1, separate_filename);
+ if (check_func (debug_filename, func_data))
+ goto found;
+
+ /* Try the first extra debug file root. */
+ sprintf (debug_filename, "%s/%s/%s", EXTRA_DEBUG_ROOT1, canon_dir, separate_filename);
+ if (check_func (debug_filename, func_data))
+ goto found;
+#endif
- SAFE_BYTE_GET (row, pi, 4, limit);
- if (row != 0)
- {
- /* PR 17531: file: a05f6ab3. */
- if (row > nused)
- {
- warn (_("Row index (%u) is larger than number of used entries (%u)\n"),
- row, nused);
- return 0;
- }
+#ifdef EXTRA_DEBUG_ROOT2
+ /* Try the second extra debug file root. */
+ sprintf (debug_filename, "%s/%s", EXTRA_DEBUG_ROOT2, separate_filename);
+ if (check_func (debug_filename, func_data))
+ goto found;
+#endif
- if (!do_display)
- memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t));
+ /* Then try in the global debug_filename directory. */
+ strcpy (debug_filename, DEBUGDIR);
+ dirlen = strlen (DEBUGDIR) - 1;
+ if (dirlen > 0 && DEBUGDIR[dirlen] != '/')
+ strcat (debug_filename, "/");
+ strcat (debug_filename, (const char *) separate_filename);
- prow = poffsets + (row - 1) * ncols * 4;
- /* PR 17531: file: b8ce60a8. */
- if (prow < poffsets || prow > limit)
- {
- warn (_("Row index (%u) * num columns (%u) > space remaining in section\n"),
- row, ncols);
- return 0;
- }
+ if (check_func (debug_filename, func_data))
+ goto found;
- if (do_display)
- printf (_(" [%3d] 0x%s"),
- i, dwarf_vmatoa64 (signature_high, signature_low,
- buf, sizeof (buf)));
- for (j = 0; j < ncols; j++)
- {
- SAFE_BYTE_GET (val, prow + j * 4, 4, limit);
- if (do_display)
- printf (" %8d", val);
- else
- {
- SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
+#if HAVE_LIBDEBUGINFOD
+ {
+ char * tmp_filename;
- /* PR 17531: file: 10796eb3. */
- if (dw_sect >= DW_SECT_MAX)
- warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect);
- else
- this_set [row - 1].section_offsets [dw_sect] = val;
- }
- }
+ if (debuginfod_fetch_separate_debug_info (xlink,
+ & tmp_filename,
+ file))
+ {
+ /* File successfully downloaded from server, replace
+ debug_filename with the file's path. */
+ free (debug_filename);
+ debug_filename = tmp_filename;
+ goto found;
+ }
+ }
+#endif
+
+ if (do_debug_links)
+ {
+ /* Failed to find the file. */
+ warn (_("could not find separate debug file '%s'\n"),
+ separate_filename);
+ warn (_("tried: %s\n"), debug_filename);
- if (do_display)
- printf ("\n");
- }
- ph += 8;
- pi += 4;
- }
+#ifdef EXTRA_DEBUG_ROOT2
+ sprintf (debug_filename, "%s/%s", EXTRA_DEBUG_ROOT2,
+ separate_filename);
+ warn (_("tried: %s\n"), debug_filename);
+#endif
- ph = phash;
- pi = pindex;
- if (do_display)
- {
- printf ("\n");
- printf (_(" Size table\n"));
- printf (" slot %-16s ",
- is_tu_index ? _("signature") : _("dwo_id"));
- }
+#ifdef EXTRA_DEBUG_ROOT1
+ sprintf (debug_filename, "%s/%s/%s", EXTRA_DEBUG_ROOT1,
+ canon_dir, separate_filename);
+ warn (_("tried: %s\n"), debug_filename);
- for (j = 0; j < ncols; j++)
- {
- SAFE_BYTE_GET (val, ppool + j * 4, 4, limit);
- if (do_display)
- printf (" %8s", get_DW_SECT_short_name (val));
- }
+ sprintf (debug_filename, "%s/%s", EXTRA_DEBUG_ROOT1,
+ separate_filename);
+ warn (_("tried: %s\n"), debug_filename);
+#endif
- if (do_display)
- printf ("\n");
+ sprintf (debug_filename, "%s.debug/%s", canon_dir,
+ separate_filename);
+ warn (_("tried: %s\n"), debug_filename);
- for (i = 0; i < nslots; i++)
- {
- SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit);
+ sprintf (debug_filename, "%s%s", canon_dir, separate_filename);
+ warn (_("tried: %s\n"), debug_filename);
- SAFE_BYTE_GET (row, pi, 4, limit);
- if (row != 0)
- {
- prow = psizes + (row - 1) * ncols * 4;
+ sprintf (debug_filename, ".debug/%s", separate_filename);
+ warn (_("tried: %s\n"), debug_filename);
- if (do_display)
- printf (_(" [%3d] 0x%s"),
- i, dwarf_vmatoa64 (signature_high, signature_low,
- buf, sizeof (buf)));
+ sprintf (debug_filename, "%s", separate_filename);
+ warn (_("tried: %s\n"), debug_filename);
- for (j = 0; j < ncols; j++)
- {
- SAFE_BYTE_GET (val, prow + j * 4, 4, limit);
- if (do_display)
- printf (" %8d", val);
- else
- {
- SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
- if (dw_sect >= DW_SECT_MAX)
- warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect);
- else
- this_set [row - 1].section_sizes [dw_sect] = val;
- }
- }
+#if HAVE_LIBDEBUGINFOD
+ {
+ char *urls = getenv (DEBUGINFOD_URLS_ENV_VAR);
+ if (urls == NULL)
+ urls = "";
- if (do_display)
- printf ("\n");
- }
+ warn (_("tried: DEBUGINFOD_URLS=%s\n"), urls);
+ }
+#endif
+ }
- ph += 8;
- pi += 4;
- }
+ free (canon_dir);
+ free (debug_filename);
+ return NULL;
+
+ found:
+ free (canon_dir);
+
+ void * debug_handle;
+
+ /* Now open the file.... */
+ if ((debug_handle = open_debug_file (debug_filename)) == NULL)
+ {
+ warn (_("failed to open separate debug file: %s\n"), debug_filename);
+ free (debug_filename);
+ return NULL;
}
- else if (do_display)
- printf (_(" Unsupported version (%d)\n"), version);
- if (do_display)
- printf ("\n");
+ /* FIXME: We do not check to see if there are any other separate debug info
+ files that would also match. */
- return 1;
+ if (do_debug_links)
+ printf (_("\n%s: Found separate debug info file: %s\n"), main_filename, debug_filename);
+ add_separate_debug_file (debug_filename, debug_handle);
+
+ /* Do not free debug_filename - it might be referenced inside
+ the structure returned by open_debug_file(). */
+ return debug_handle;
}
-/* Load the CU and TU indexes if present. This will build a list of
- section sets that we can use to associate a .debug_info.dwo section
- with its associated .debug_abbrev.dwo section in a .dwp file. */
+/* Attempt to load a separate dwarf object file. */
-static bfd_boolean
-load_cu_tu_indexes (void *file)
+static void *
+load_dwo_file (const char * main_filename, const char * name, const char * dir, const char * id ATTRIBUTE_UNUSED)
{
- static int cu_tu_indexes_read = -1; /* Tri-state variable. */
+ char * separate_filename;
+ void * separate_handle;
- /* If we have already loaded (or tried to load) the CU and TU indexes
- then do not bother to repeat the task. */
- if (cu_tu_indexes_read == -1)
+ if (IS_ABSOLUTE_PATH (name))
+ separate_filename = strdup (name);
+ else
+ /* FIXME: Skip adding / if dwo_dir ends in /. */
+ separate_filename = concat (dir, "/", name, NULL);
+ if (separate_filename == NULL)
{
- cu_tu_indexes_read = TRUE;
-
- if (load_debug_section (dwp_cu_index, file))
- if (! process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0))
- cu_tu_indexes_read = FALSE;
+ warn (_("Out of memory allocating dwo filename\n"));
+ return NULL;
+ }
- if (load_debug_section (dwp_tu_index, file))
- if (! process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0))
- cu_tu_indexes_read = FALSE;
+ if ((separate_handle = open_debug_file (separate_filename)) == NULL)
+ {
+ warn (_("Unable to load dwo file: %s\n"), separate_filename);
+ free (separate_filename);
+ return NULL;
}
- return (bfd_boolean) cu_tu_indexes_read;
-}
+ /* FIXME: We should check the dwo_id. */
-/* Find the set of sections that includes section SHNDX. */
+ printf (_("%s: Found separate debug object file: %s\n\n"), main_filename, separate_filename);
+ add_separate_debug_file (separate_filename, separate_handle);
+ /* Note - separate_filename will be freed in free_debug_memory(). */
+ return separate_handle;
+}
-unsigned int *
-find_cu_tu_set (void *file, unsigned int shndx)
+static void
+load_debug_sup_file (const char * main_filename, void * file)
{
- unsigned int i;
-
- if (! load_cu_tu_indexes (file))
- return NULL;
+ if (! load_debug_section (debug_sup, file))
+ return; /* No .debug_sup section. */
- /* Find SHNDX in the shndx pool. */
- for (i = 0; i < shndx_pool_used; i++)
- if (shndx_pool [i] == shndx)
- break;
+ struct dwarf_section * section;
+ section = & debug_displays [debug_sup].section;
+ assert (section != NULL);
- if (i >= shndx_pool_used)
- return NULL;
+ if (section->start == NULL || section->size < 5)
+ {
+ warn (_(".debug_sup section is corrupt/empty\n"));
+ return;
+ }
- /* Now backup to find the first entry in the set. */
- while (i > 0 && shndx_pool [i - 1] != 0)
- i--;
+ if (section->start[2] != 0)
+ return; /* This is a supplementary file. */
- return shndx_pool + i;
-}
+ const char * filename = (const char *) section->start + 3;
+ if (strnlen (filename, section->size - 3) == section->size - 3)
+ {
+ warn (_("filename in .debug_sup section is corrupt\n"));
+ return;
+ }
-/* Display a .debug_cu_index or .debug_tu_index section. */
+ if (filename[0] != '/' && strchr (main_filename, '/'))
+ {
+ char * new_name;
+ if (asprintf (& new_name, "%.*s/%s",
+ (int) (strrchr (main_filename, '/') - main_filename),
+ main_filename,
+ filename) < 3)
+ warn (_("unable to construct path for supplementary debug file"));
+ else
+ filename = new_name;
+ }
-static int
-display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED)
-{
- return process_cu_tu_index (section, 1);
-}
+ void * handle;
+ handle = open_debug_file (filename);
+ if (handle == NULL)
+ {
+ warn (_("unable to open file '%s' referenced from .debug_sup section\n"), filename);
+ return;
+ }
-static int
-display_debug_not_supported (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
- section->name);
+ printf (_("%s: Found supplementary debug file: %s\n\n"), main_filename, filename);
- return 1;
+ /* FIXME: Compare the checksums, if present. */
+ add_separate_debug_file (filename, handle);
}
-/* Like malloc, but takes two parameters like calloc.
- Verifies that the first parameter is not too large.
- Note: does *not* initialise the allocated memory to zero. */
-void *
-cmalloc (size_t nmemb, size_t size)
-{
- /* Check for overflow. */
- if (nmemb >= ~(size_t) 0 / size)
- return NULL;
-
- return xmalloc (nmemb * size);
-}
+/* Load a debuglink section and/or a debugaltlink section, if either are present.
+ Recursively check the loaded files for more of these sections.
+ Also follow any links in .debug_sup sections.
+ FIXME: Should also check for DWO_* entries in the newly loaded files. */
-/* Like xmalloc, but takes two parameters like calloc.
- Verifies that the first parameter is not too large.
- Note: does *not* initialise the allocated memory to zero. */
-void *
-xcmalloc (size_t nmemb, size_t size)
+static void
+check_for_and_load_links (void * file, const char * filename)
{
- /* Check for overflow. */
- if (nmemb >= ~(size_t) 0 / size)
+ void * handle = NULL;
+
+ if (load_debug_section (gnu_debugaltlink, file))
{
- fprintf (stderr,
- _("Attempt to allocate an array with an excessive number of elements: 0x%lx\n"),
- (long) nmemb);
- xexit (1);
- }
+ Build_id_data build_id_data;
- return xmalloc (nmemb * size);
-}
+ handle = load_separate_debug_info (filename,
+ & debug_displays[gnu_debugaltlink].section,
+ parse_gnu_debugaltlink,
+ check_gnu_debugaltlink,
+ & build_id_data,
+ file);
+ if (handle)
+ {
+ assert (handle == first_separate_info->handle);
+ check_for_and_load_links (first_separate_info->handle,
+ first_separate_info->filename);
+ }
+ }
-/* Like xrealloc, but takes three parameters.
- Verifies that the second parameter is not too large.
- Note: does *not* initialise any new memory to zero. */
-void *
-xcrealloc (void *ptr, size_t nmemb, size_t size)
-{
- /* Check for overflow. */
- if (nmemb >= ~(size_t) 0 / size)
+ if (load_debug_section (gnu_debuglink, file))
{
- fprintf (stderr,
- _("Attempt to re-allocate an array with an excessive number of elements: 0x%lx\n"),
- (long) nmemb);
- xexit (1);
+ unsigned long crc32;
+
+ handle = load_separate_debug_info (filename,
+ & debug_displays[gnu_debuglink].section,
+ parse_gnu_debuglink,
+ check_gnu_debuglink,
+ & crc32,
+ file);
+ if (handle)
+ {
+ assert (handle == first_separate_info->handle);
+ check_for_and_load_links (first_separate_info->handle,
+ first_separate_info->filename);
+ }
}
- return xrealloc (ptr, nmemb * size);
+ load_debug_sup_file (filename, file);
}
-/* Like xcalloc, but verifies that the first parameter is not too large. */
-void *
-xcalloc2 (size_t nmemb, size_t size)
+/* Load the separate debug info file(s) attached to FILE, if any exist.
+ Returns TRUE if any were found, FALSE otherwise.
+ If TRUE is returned then the linked list starting at first_separate_info
+ will be populated with open file handles. */
+
+bool
+load_separate_debug_files (void * file, const char * filename)
{
- /* Check for overflow. */
- if (nmemb >= ~(size_t) 0 / size)
+ /* Skip this operation if we are not interested in debug links. */
+ if (! do_follow_links && ! do_debug_links)
+ return false;
+
+ /* See if there are any dwo links. */
+ if (load_debug_section (str, file)
+ && load_debug_section (abbrev, file)
+ && load_debug_section (info, file))
{
- fprintf (stderr,
- _("Attempt to allocate a zero'ed array with an excessive number of elements: 0x%lx\n"),
- (long) nmemb);
- xexit (1);
+ free_dwo_info ();
+
+ if (process_debug_info (& debug_displays[info].section, file, abbrev,
+ true, false))
+ {
+ bool introduced = false;
+ dwo_info *dwinfo;
+ const char *dir = NULL;
+ const char *id = NULL;
+ const char *name = NULL;
+
+ for (dwinfo = first_dwo_info; dwinfo != NULL; dwinfo = dwinfo->next)
+ {
+ /* Accumulate NAME, DIR and ID fields. */
+ switch (dwinfo->type)
+ {
+ case DWO_NAME:
+ if (name != NULL)
+ warn (_("Multiple DWO_NAMEs encountered for the same CU\n"));
+ name = dwinfo->value;
+ break;
+
+ case DWO_DIR:
+ /* There can be multiple DW_AT_comp_dir entries in a CU,
+ so do not complain. */
+ dir = dwinfo->value;
+ break;
+
+ case DWO_ID:
+ if (id != NULL)
+ warn (_("multiple DWO_IDs encountered for the same CU\n"));
+ id = dwinfo->value;
+ break;
+
+ default:
+ error (_("Unexpected DWO INFO type"));
+ break;
+ }
+
+ /* If we have reached the end of our list, or we are changing
+ CUs, then display the information that we have accumulated
+ so far. */
+ if (name != NULL
+ && (dwinfo->next == NULL
+ || dwinfo->next->cu_offset != dwinfo->cu_offset))
+ {
+ if (do_debug_links)
+ {
+ if (! introduced)
+ {
+ printf (_("The %s section contains link(s) to dwo file(s):\n\n"),
+ debug_displays [info].section.uncompressed_name);
+ introduced = true;
+ }
+
+ printf (_(" Name: %s\n"), name);
+ printf (_(" Directory: %s\n"), dir ? dir : _("<not-found>"));
+ if (id != NULL)
+ display_data (printf (_(" ID: ")), (unsigned char *) id, 8);
+ else
+ printf (_(" ID: <not specified>\n"));
+ printf ("\n\n");
+ }
+
+ if (do_follow_links)
+ load_dwo_file (filename, name, dir, id);
+
+ name = dir = id = NULL;
+ }
+ }
+ }
}
- return xcalloc (nmemb, size);
+ if (! do_follow_links)
+ /* The other debug links will be displayed by display_debug_links()
+ so we do not need to do any further processing here. */
+ return false;
+
+ /* FIXME: We do not check for the presence of both link sections in the same file. */
+ /* FIXME: We do not check for the presence of multiple, same-name debuglink sections. */
+ /* FIXME: We do not check for the presence of a dwo link as well as a debuglink. */
+
+ check_for_and_load_links (file, filename);
+ if (first_separate_info != NULL)
+ return true;
+
+ do_follow_links = 0;
+ return false;
}
void
{
unsigned int i;
- free_abbrevs ();
+ free_all_abbrevs ();
+
+ free (cu_abbrev_map);
+ cu_abbrev_map = NULL;
+ next_free_abbrev_map_entry = 0;
+
+ free (shndx_pool);
+ shndx_pool = NULL;
+ shndx_pool_size = 0;
+ shndx_pool_used = 0;
+ free (cu_sets);
+ cu_sets = NULL;
+ cu_count = 0;
+ free (tu_sets);
+ tu_sets = NULL;
+ tu_count = 0;
+
+ memset (level_type_signed, 0, sizeof level_type_signed);
+ cu_tu_indexes_read = -1;
for (i = 0; i < max; i++)
free_debug_section ((enum dwarf_section_display_enum) i);
if (debug_information != NULL)
{
- if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE)
+ for (i = 0; i < alloc_num_debug_info_entries; i++)
{
- for (i = 0; i < num_debug_info_entries; i++)
+ if (debug_information [i].max_loc_offsets)
{
- if (!debug_information [i].max_loc_offsets)
- {
- free (debug_information [i].loc_offsets);
- free (debug_information [i].have_frame_base);
- }
- if (!debug_information [i].max_range_lists)
- free (debug_information [i].range_lists);
+ free (debug_information [i].loc_offsets);
+ free (debug_information [i].have_frame_base);
}
+ if (debug_information [i].max_range_lists)
+ free (debug_information [i].range_lists);
}
free (debug_information);
debug_information = NULL;
alloc_num_debug_info_entries = num_debug_info_entries = 0;
}
+
+ separate_info * d;
+ separate_info * next;
+
+ for (d = first_separate_info; d != NULL; d = next)
+ {
+ close_debug_file (d->handle);
+ free ((void *) d->filename);
+ next = d->next;
+ free ((void *) d);
+ }
+ first_separate_info = NULL;
+
+ free_dwo_info ();
}
void
{ "aranges", & do_debug_aranges, 1 },
{ "cu_index", & do_debug_cu_index, 1 },
{ "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED },
+ { "follow-links", & do_follow_links, 1 },
{ "frames", & do_debug_frames, 1 },
{ "frames-interp", & do_debug_frames_interp, 1 },
/* The special .gdb_index section. */
{ "gdb_index", & do_gdb_index, 1 },
{ "info", & do_debug_info, 1 },
{ "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */
+ { "links", & do_debug_links, 1 },
{ "loc", & do_debug_loc, 1 },
{ "macro", & do_debug_macinfo, 1 },
+ { "no-follow-links", & do_follow_links, 0 },
{ "pubnames", & do_debug_pubnames, 1 },
{ "pubtypes", & do_debug_pubtypes, 1 },
/* This entry is for compatibility
{ "ranges", & do_debug_aranges, 1 },
{ "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW },
{ "str", & do_debug_str, 1 },
+ { "str-offsets", & do_debug_str_offsets, 1 },
/* These trace_* sections are used by Itanium VMS. */
{ "trace_abbrev", & do_trace_abbrevs, 1 },
{ "trace_aranges", & do_trace_aranges, 1 },
if (strncmp (p, entry->option, len) == 0
&& (p[len] == ',' || p[len] == '\0'))
{
- * entry->variable |= entry->val;
+ * entry->variable = entry->val;
/* The --debug-dump=frames-interp option also
enables the --debug-dump=frames option. */
while (letters[lindex])
switch (letters[lindex++])
{
- case 'i':
- do_debug_info = 1;
- break;
-
- case 'a':
- do_debug_abbrevs = 1;
- break;
-
- case 'l':
- do_debug_lines |= FLAG_DEBUG_LINES_RAW;
- break;
-
- case 'L':
- do_debug_lines |= FLAG_DEBUG_LINES_DECODED;
- break;
-
- case 'p':
- do_debug_pubnames = 1;
- break;
-
- case 't':
- do_debug_pubtypes = 1;
- break;
-
- case 'r':
- do_debug_aranges = 1;
- break;
-
- case 'R':
- do_debug_ranges = 1;
- break;
-
- case 'F':
- do_debug_frames_interp = 1;
- /* Fall through. */
- case 'f':
- do_debug_frames = 1;
- break;
-
- case 'm':
- do_debug_macinfo = 1;
- break;
-
- case 's':
- do_debug_str = 1;
- break;
-
- case 'o':
- do_debug_loc = 1;
- break;
+ case 'A': do_debug_addr = 1; break;
+ case 'a': do_debug_abbrevs = 1; break;
+ case 'c': do_debug_cu_index = 1; break;
+ case 'F': do_debug_frames_interp = 1; /* Fall through. */
+ case 'f': do_debug_frames = 1; break;
+ case 'g': do_gdb_index = 1; break;
+ case 'i': do_debug_info = 1; break;
+ case 'K': do_follow_links = 1; break;
+ case 'N': do_follow_links = 0; break;
+ case 'k': do_debug_links = 1; break;
+ case 'l': do_debug_lines |= FLAG_DEBUG_LINES_RAW; break;
+ case 'L': do_debug_lines |= FLAG_DEBUG_LINES_DECODED; break;
+ case 'm': do_debug_macinfo = 1; break;
+ case 'O': do_debug_str_offsets = 1; break;
+ case 'o': do_debug_loc = 1; break;
+ case 'p': do_debug_pubnames = 1; break;
+ case 'R': do_debug_ranges = 1; break;
+ case 'r': do_debug_aranges = 1; break;
+ case 's': do_debug_str = 1; break;
+ case 'T': do_trace_aranges = 1; break;
+ case 't': do_debug_pubtypes = 1; break;
+ case 'U': do_trace_info = 1; break;
+ case 'u': do_trace_abbrevs = 1; break;
default:
warn (_("Unrecognized debug option '%s'\n"), letters);
do_trace_aranges = 1;
do_debug_addr = 1;
do_debug_cu_index = 1;
+ do_follow_links = 1;
+ do_debug_links = 1;
+ do_debug_str_offsets = 1;
}
+#define NO_ABBREVS NULL, NULL, NULL, 0, 0, 0, NULL, 0
+#define ABBREV(N) NULL, NULL, NULL, 0, 0, N, NULL, 0
+
+/* N.B. The order here must match the order in section_display_enum. */
+
struct dwarf_section_display debug_displays[] =
{
- { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_abbrev, &do_debug_abbrevs, FALSE },
- { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_aranges, &do_debug_aranges, TRUE },
- { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_frames, &do_debug_frames, TRUE },
- { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev, NULL, 0, NULL },
- display_debug_info, &do_debug_info, TRUE },
- { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_lines, &do_debug_lines, TRUE },
- { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_pubnames, &do_debug_pubnames, FALSE },
- { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_gnu_pubnames, &do_debug_pubnames, FALSE },
- { { ".eh_frame", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_frames, &do_debug_frames, TRUE },
- { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_macinfo, &do_debug_macinfo, FALSE },
- { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_macro, &do_debug_macinfo, TRUE },
- { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_str, &do_debug_str, FALSE },
- { { ".debug_line_str", ".zdebug_line_str", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_str, &do_debug_str, FALSE },
- { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_loc, &do_debug_loc, TRUE },
- { { ".debug_loclists", ".zdebug_loclists", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_loc, &do_debug_loc, TRUE },
- { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_pubnames, &do_debug_pubtypes, FALSE },
- { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_gnu_pubnames, &do_debug_pubtypes, FALSE },
- { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_ranges, &do_debug_ranges, TRUE },
- { { ".debug_rnglists", ".zdebug_rnglists", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_ranges, &do_debug_ranges, TRUE },
- { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_not_supported, NULL, FALSE },
- { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_not_supported, NULL, FALSE },
- { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev, NULL, 0, NULL },
- display_debug_types, &do_debug_info, TRUE },
- { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_not_supported, NULL, FALSE },
- { { ".gdb_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_gdb_index, &do_gdb_index, FALSE },
- { { ".debug_names", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_names, &do_gdb_index, FALSE },
- { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev, NULL, 0, NULL },
- display_trace_info, &do_trace_info, TRUE },
- { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_abbrev, &do_trace_abbrevs, FALSE },
- { { ".trace_aranges", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_aranges, &do_trace_aranges, FALSE },
- { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL, 0, NULL },
- display_debug_info, &do_debug_info, TRUE },
- { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_abbrev, &do_debug_abbrevs, FALSE },
- { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL, 0, NULL },
- display_debug_types, &do_debug_info, TRUE },
- { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_lines, &do_debug_lines, TRUE },
- { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_loc, &do_debug_loc, TRUE },
- { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_macro, &do_debug_macinfo, TRUE },
- { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_macinfo, &do_debug_macinfo, FALSE },
- { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_str, &do_debug_str, TRUE },
- { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_str_offsets, NULL, FALSE },
- { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_str_offsets, NULL, FALSE },
- { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_debug_addr, &do_debug_addr, TRUE },
- { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_cu_index, &do_debug_cu_index, FALSE },
- { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
- display_cu_index, &do_debug_cu_index, FALSE },
+ { { ".debug_abbrev", ".zdebug_abbrev", NO_ABBREVS }, display_debug_abbrev, &do_debug_abbrevs, false },
+ { { ".debug_aranges", ".zdebug_aranges", NO_ABBREVS }, display_debug_aranges, &do_debug_aranges, true },
+ { { ".debug_frame", ".zdebug_frame", NO_ABBREVS }, display_debug_frames, &do_debug_frames, true },
+ { { ".debug_info", ".zdebug_info", ABBREV (abbrev)}, display_debug_info, &do_debug_info, true },
+ { { ".debug_line", ".zdebug_line", NO_ABBREVS }, display_debug_lines, &do_debug_lines, true },
+ { { ".debug_pubnames", ".zdebug_pubnames", NO_ABBREVS }, display_debug_pubnames, &do_debug_pubnames, false },
+ { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NO_ABBREVS }, display_debug_gnu_pubnames, &do_debug_pubnames, false },
+ { { ".eh_frame", "", NO_ABBREVS }, display_debug_frames, &do_debug_frames, true },
+ { { ".debug_macinfo", ".zdebug_macinfo", NO_ABBREVS }, display_debug_macinfo, &do_debug_macinfo, false },
+ { { ".debug_macro", ".zdebug_macro", NO_ABBREVS }, display_debug_macro, &do_debug_macinfo, true },
+ { { ".debug_str", ".zdebug_str", NO_ABBREVS }, display_debug_str, &do_debug_str, false },
+ { { ".debug_line_str", ".zdebug_line_str", NO_ABBREVS }, display_debug_str, &do_debug_str, false },
+ { { ".debug_loc", ".zdebug_loc", NO_ABBREVS }, display_debug_loc, &do_debug_loc, true },
+ { { ".debug_loclists", ".zdebug_loclists", NO_ABBREVS }, display_debug_loc, &do_debug_loc, true },
+ { { ".debug_pubtypes", ".zdebug_pubtypes", NO_ABBREVS }, display_debug_pubnames, &do_debug_pubtypes, false },
+ { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NO_ABBREVS }, display_debug_gnu_pubnames, &do_debug_pubtypes, false },
+ { { ".debug_ranges", ".zdebug_ranges", NO_ABBREVS }, display_debug_ranges, &do_debug_ranges, true },
+ { { ".debug_rnglists", ".zdebug_rnglists", NO_ABBREVS }, display_debug_ranges, &do_debug_ranges, true },
+ { { ".debug_static_func", ".zdebug_static_func", NO_ABBREVS }, display_debug_not_supported, NULL, false },
+ { { ".debug_static_vars", ".zdebug_static_vars", NO_ABBREVS }, display_debug_not_supported, NULL, false },
+ { { ".debug_types", ".zdebug_types", ABBREV (abbrev) }, display_debug_types, &do_debug_info, true },
+ { { ".debug_weaknames", ".zdebug_weaknames", NO_ABBREVS }, display_debug_not_supported, NULL, false },
+ { { ".gdb_index", "", NO_ABBREVS }, display_gdb_index, &do_gdb_index, false },
+ { { ".debug_names", "", NO_ABBREVS }, display_debug_names, &do_gdb_index, false },
+ { { ".trace_info", "", ABBREV (trace_abbrev) }, display_trace_info, &do_trace_info, true },
+ { { ".trace_abbrev", "", NO_ABBREVS }, display_debug_abbrev, &do_trace_abbrevs, false },
+ { { ".trace_aranges", "", NO_ABBREVS }, display_debug_aranges, &do_trace_aranges, false },
+ { { ".debug_info.dwo", ".zdebug_info.dwo", ABBREV (abbrev_dwo) }, display_debug_info, &do_debug_info, true },
+ { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NO_ABBREVS }, display_debug_abbrev, &do_debug_abbrevs, false },
+ { { ".debug_types.dwo", ".zdebug_types.dwo", ABBREV (abbrev_dwo) }, display_debug_types, &do_debug_info, true },
+ { { ".debug_line.dwo", ".zdebug_line.dwo", NO_ABBREVS }, display_debug_lines, &do_debug_lines, true },
+ { { ".debug_loc.dwo", ".zdebug_loc.dwo", NO_ABBREVS }, display_debug_loc, &do_debug_loc, true },
+ { { ".debug_macro.dwo", ".zdebug_macro.dwo", NO_ABBREVS }, display_debug_macro, &do_debug_macinfo, true },
+ { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NO_ABBREVS }, display_debug_macinfo, &do_debug_macinfo, false },
+ { { ".debug_str.dwo", ".zdebug_str.dwo", NO_ABBREVS }, display_debug_str, &do_debug_str, true },
+ { { ".debug_str_offsets", ".zdebug_str_offsets", NO_ABBREVS }, display_debug_str_offsets, &do_debug_str_offsets, true },
+ { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NO_ABBREVS }, display_debug_str_offsets, &do_debug_str_offsets, true },
+ { { ".debug_addr", ".zdebug_addr", NO_ABBREVS }, display_debug_addr, &do_debug_addr, true },
+ { { ".debug_cu_index", "", NO_ABBREVS }, display_cu_index, &do_debug_cu_index, false },
+ { { ".debug_tu_index", "", NO_ABBREVS }, display_cu_index, &do_debug_cu_index, false },
+ { { ".gnu_debuglink", "", NO_ABBREVS }, display_debug_links, &do_debug_links, false },
+ { { ".gnu_debugaltlink", "", NO_ABBREVS }, display_debug_links, &do_debug_links, false },
+ { { ".debug_sup", "", NO_ABBREVS }, display_debug_sup, &do_debug_links, false },
+ /* Separate debug info files can containt their own .debug_str section,
+ and this might be in *addition* to a .debug_str section already present
+ in the main file. Hence we need to have two entries for .debug_str. */
+ { { ".debug_str", ".zdebug_str", NO_ABBREVS }, display_debug_str, &do_debug_str, false },
};
/* A static assertion. */