/* objdump.c -- dump information about an object file.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Foundation, 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
/* Objdump overview.
processed in order by display_bfd(). If the file is an archive each
of its elements is processed in turn.
- 3. The file's target architecture and binary file format are determnined
+ 3. The file's target architecture and binary file format are determined
by bfd_check_format(). If they are recognised, then dump_bfd() is
called.
- 4. dump_bfd() in turn calls seperate functions to display the requested
- item(s) of infomation(s). For example dissasemble_data() is called if
- a disassmebly has been requested.
+ 4. dump_bfd() in turn calls separate functions to display the requested
+ item(s) of information(s). For example disassemble_data() is called if
+ a disassembly has been requested.
When disassembling the code loops through blocks of instructions bounded
- by symbols, calling dissassemble_bytes() on each block. The actual
+ by symbols, calling disassemble_bytes() on each block. The actual
disassembling is done by the libopcodes library, via a function pointer
supplied by the disassembler() function. */
+#include "sysdep.h"
#include "bfd.h"
-#include "bfdver.h"
+#include "elf-bfd.h"
#include "progress.h"
#include "bucomm.h"
-#include "budemang.h"
+#include "dwarf.h"
#include "getopt.h"
#include "safe-ctype.h"
#include "dis-asm.h"
#include "debug.h"
#include "budbg.h"
+#ifdef HAVE_MMAP
+#include <sys/mman.h>
+#endif
+
+#include <sys/stat.h>
+
/* Internal headers for the ELF .stab-dump code - sorry. */
#define BYTES_IN_WORD 32
#include "aout/aout64.h"
-#ifdef NEED_DECLARATION_FPRINTF
-/* This is needed by INIT_DISASSEMBLE_INFO. */
-extern int fprintf (FILE *, const char *, ...);
-#endif
-
/* Exit status. */
static int exit_status = 0;
static char *default_target = NULL; /* Default at runtime. */
-/* The following variables are set based on arguments passed on command line. */
+/* The following variables are set based on arguments passed on the
+ command line. */
static int show_version = 0; /* Show the version number. */
static int dump_section_contents; /* -s */
static int dump_section_headers; /* -h */
static int with_line_numbers; /* -l */
static bfd_boolean with_source_code; /* -S */
static int show_raw_insn; /* --show-raw-insn */
+static int dump_dwarf_section_info; /* --dwarf */
static int dump_stab_section_info; /* --stabs */
static int do_demangle; /* -C, --demangle */
static bfd_boolean disassemble; /* -d */
static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
static int dump_debugging; /* --debugging */
static int dump_debugging_tags; /* --debugging-tags */
+static int dump_special_syms = 0; /* --special-syms */
static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
static int file_start_context = 0; /* --file-start-context */
+static bfd_boolean display_file_offsets;/* -F */
/* Pointer to an array of section names provided by
one or more "-j secname" command line options. */
static const char **include_paths;
static int include_path_count;
-/* Extra info to pass to the section disassembler and address printing function. */
+/* Extra info to pass to the section disassembler and address printing
+ function. */
struct objdump_disasm_info
{
bfd * abfd;
arelent ** dynrelbuf;
long dynrelcount;
disassembler_ftype disassemble_fn;
+ arelent * reloc;
};
/* Architecture to disassemble for, or default if NULL. */
/* The dynamic symbol table. */
static asymbol **dynsyms;
+/* The synthetic symbol table. */
+static asymbol *synthsyms;
+static long synthcount = 0;
+
/* Number of symbols in `dynsyms'. */
static long dynsymcount = 0;
static char *strtab;
static bfd_size_type stabstr_size;
+
+static bfd_boolean is_relocatable = FALSE;
\f
static void
usage (FILE *stream, int status)
-g, --debugging Display debug information in object file\n\
-e, --debugging-tags Display debug information using ctags style\n\
-G, --stabs Display (in raw form) any STABS info in the file\n\
+ -W, --dwarf Display DWARF info in the file\n\
-t, --syms Display the contents of the symbol table(s)\n\
-T, --dynamic-syms Display the contents of the dynamic symbol table\n\
-r, --reloc Display the relocation entries in the file\n\
-R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
+ @<file> Read options from <file>\n\
-v, --version Display this program's version number\n\
-i, --info List object formats and architectures supported\n\
-H, --help Display this information\n\
--file-start-context Include context from start of file (with -S)\n\
-I, --include=DIR Add DIR to search list for source files\n\
-l, --line-numbers Include line numbers and filenames in output\n\
+ -F, --file-offsets Include file offsets when displaying information\n\
-C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
The STYLE, if specified, can be `auto', `gnu',\n\
`lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
--prefix-addresses Print complete address alongside disassembly\n\
--[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
--adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
+ --special-syms Include special symbols in symbol dumps\n\
\n"));
list_supported_targets (program_name, stream);
list_supported_architectures (program_name, stream);
disassembler_usage (stream);
}
- if (status == 0)
+ if (REPORT_BUGS_TO[0] && status == 0)
fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
exit (status);
}
{"dynamic-syms", no_argument, NULL, 'T'},
{"endian", required_argument, NULL, OPTION_ENDIAN},
{"file-headers", no_argument, NULL, 'f'},
+ {"file-offsets", no_argument, NULL, 'F'},
{"file-start-context", no_argument, &file_start_context, 1},
{"full-contents", no_argument, NULL, 's'},
{"headers", no_argument, NULL, 'h'},
{"section-headers", no_argument, NULL, 'h'},
{"show-raw-insn", no_argument, &show_raw_insn, 1},
{"source", no_argument, NULL, 'S'},
+ {"special-syms", no_argument, &dump_special_syms, 1},
{"include", required_argument, NULL, 'I'},
+ {"dwarf", no_argument, NULL, 'W'},
{"stabs", no_argument, NULL, 'G'},
{"start-address", required_argument, NULL, OPTION_START_ADDRESS},
{"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
}
\f
static void
-dump_section_header (bfd *abfd ATTRIBUTE_UNUSED, asection *section,
+dump_section_header (bfd *abfd, asection *section,
void *ignored ATTRIBUTE_UNUSED)
{
char *comma = "";
unsigned int opb = bfd_octets_per_byte (abfd);
+ /* Ignore linker created section. See elfNN_ia64_object_p in
+ bfd/elfxx-ia64.c. */
+ if (section->flags & SEC_LINKER_CREATED)
+ return;
+
printf ("%3d %-13s %08lx ", section->index,
bfd_get_section_name (abfd, section),
(unsigned long) bfd_section_size (abfd, section) / opb);
PF (SEC_NEVER_LOAD, "NEVER_LOAD");
PF (SEC_EXCLUDE, "EXCLUDE");
PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
- PF (SEC_BLOCK, "BLOCK");
- PF (SEC_CLINK, "CLINK");
+ if (bfd_get_arch (abfd) == bfd_arch_tic54x)
+ {
+ PF (SEC_TIC54X_BLOCK, "BLOCK");
+ PF (SEC_TIC54X_CLINK, "CLINK");
+ }
PF (SEC_SMALL_DATA, "SMALL_DATA");
- PF (SEC_SHARED, "SHARED");
- PF (SEC_ARCH_BIT_0, "ARCH_BIT_0");
+ if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
+ PF (SEC_COFF_SHARED, "SHARED");
PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
+ PF (SEC_GROUP, "GROUP");
if ((section->flags & SEC_LINK_ONCE) != 0)
{
const char *ls;
+ struct coff_comdat_info *comdat;
switch (section->flags & SEC_LINK_DUPLICATES)
{
}
printf ("%s%s", comma, ls);
- if (section->comdat != NULL)
- printf (" (COMDAT %s %ld)", section->comdat->name,
- section->comdat->symbol);
+ comdat = bfd_coff_get_comdat_section (abfd, section);
+ if (comdat != NULL)
+ printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
comma = ", ";
}
if (sym->name == NULL || sym->name[0] == '\0')
continue;
- if (sym->flags & (BSF_DEBUGGING))
+ if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
continue;
if (bfd_is_und_section (sym->section)
|| bfd_is_com_section (sym->section))
{
char buf[30];
char *p;
- struct objdump_disasm_info *aux
- = (struct objdump_disasm_info *) info->application_data;
+ struct objdump_disasm_info *aux;
+ aux = (struct objdump_disasm_info *) info->application_data;
bfd_sprintf_vma (aux->abfd, buf, vma);
if (! skip_zeroes)
p = buf;
if (do_demangle && name[0] != '\0')
{
/* Demangle the name. */
- alloc = demangle (abfd, name);
- name = alloc;
+ alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
+ if (alloc != NULL)
+ name = alloc;
}
if (info != NULL)
free (alloc);
}
-/* Locate a symbol given a bfd, a section, and a VMA. If REQUIRE_SEC
- is TRUE, then always require the symbol to be in the section. This
- returns NULL if there is no suitable symbol. If PLACE is not NULL,
- then *PLACE is set to the index of the symbol in sorted_syms. */
+/* Locate a symbol given a bfd and a section (from INFO->application_data),
+ and a VMA. If INFO->application_data->require_sec is TRUE, then always
+ require the symbol to be in the section. Returns NULL if there is no
+ suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
+ of the symbol in sorted_syms. */
static asymbol *
-find_symbol_for_address (bfd *abfd, asection *sec, bfd_vma vma,
- bfd_boolean require_sec, long *place)
+find_symbol_for_address (bfd_vma vma,
+ struct disassemble_info *info,
+ long *place)
{
/* @@ Would it speed things up to cache the last two symbols returned,
and maybe their address ranges? For many processors, only one memory
long min = 0;
long max = sorted_symcount;
long thisplace;
- unsigned int opb = bfd_octets_per_byte (abfd);
+ struct objdump_disasm_info *aux;
+ bfd *abfd;
+ asection *sec;
+ unsigned int opb;
+ bfd_boolean want_section;
if (sorted_symcount < 1)
return NULL;
+ aux = (struct objdump_disasm_info *) info->application_data;
+ abfd = aux->abfd;
+ sec = aux->sec;
+ opb = bfd_octets_per_byte (abfd);
+
/* Perform a binary search looking for the closest symbol to the
required value. We are searching the range (min, max]. */
while (min + 1 < max)
Note that this may be wrong for some symbol references if the
sections have overlapping memory ranges, but in that case there's
no way to tell what's desired without looking at the relocation
- table. */
- if (sorted_syms[thisplace]->section != sec
- && (require_sec
- || ((abfd->flags & HAS_RELOC) != 0
- && vma >= bfd_get_section_vma (abfd, sec)
- && vma < (bfd_get_section_vma (abfd, sec)
- + bfd_section_size (abfd, sec) / opb))))
+ table.
+
+ Also give the target a chance to reject symbols. */
+ want_section = (aux->require_sec
+ || ((abfd->flags & HAS_RELOC) != 0
+ && vma >= bfd_get_section_vma (abfd, sec)
+ && vma < (bfd_get_section_vma (abfd, sec)
+ + bfd_section_size (abfd, sec) / opb)));
+ if ((sorted_syms[thisplace]->section != sec && want_section)
+ || !info->symbol_is_valid (sorted_syms[thisplace], info))
{
long i;
+ long newplace;
for (i = thisplace + 1; i < sorted_symcount; i++)
{
}
--i;
+ newplace = sorted_symcount;
for (; i >= 0; i--)
{
- if (sorted_syms[i]->section == sec
- && (i == 0
- || sorted_syms[i - 1]->section != sec
- || (bfd_asymbol_value (sorted_syms[i])
- != bfd_asymbol_value (sorted_syms[i - 1]))))
+ if ((sorted_syms[i]->section == sec || !want_section)
+ && info->symbol_is_valid (sorted_syms[i], info))
{
- thisplace = i;
- break;
+ if (newplace == sorted_symcount)
+ newplace = i;
+
+ if (bfd_asymbol_value (sorted_syms[i])
+ != bfd_asymbol_value (sorted_syms[newplace]))
+ break;
+
+ /* Remember this symbol and keep searching until we reach
+ an earlier address. */
+ newplace = i;
}
}
- if (sorted_syms[thisplace]->section != sec)
+ if (newplace != sorted_symcount)
+ thisplace = newplace;
+ else
{
/* We didn't find a good symbol with a smaller value.
Look for one with a larger value. */
for (i = thisplace + 1; i < sorted_symcount; i++)
{
- if (sorted_syms[i]->section == sec)
+ if ((sorted_syms[i]->section == sec || !want_section)
+ && info->symbol_is_valid (sorted_syms[i], info))
{
thisplace = i;
break;
}
}
- if (sorted_syms[thisplace]->section != sec
- && (require_sec
- || ((abfd->flags & HAS_RELOC) != 0
- && vma >= bfd_get_section_vma (abfd, sec)
- && vma < (bfd_get_section_vma (abfd, sec)
- + bfd_section_size (abfd, sec)))))
- {
- /* There is no suitable symbol. */
- return NULL;
- }
+ if ((sorted_syms[thisplace]->section != sec && want_section)
+ || !info->symbol_is_valid (sorted_syms[thisplace], info))
+ /* There is no suitable symbol. */
+ return NULL;
}
if (place != NULL)
}
(*info->fprintf_func) (info->stream, ">");
}
+
+ if (display_file_offsets)
+ info->fprintf_func (info->stream, _(" (File Offset: 0x%lx)"),
+ (long int)(sec->filepos + (vma - sec->vma)));
}
/* Print an address (VMA), symbolically if possible.
If SKIP_ZEROES is TRUE, don't output leading zeroes. */
static void
-objdump_print_addr (bfd_vma vma, struct disassemble_info *info,
+objdump_print_addr (bfd_vma vma,
+ struct disassemble_info *info,
bfd_boolean skip_zeroes)
{
struct objdump_disasm_info *aux;
- asymbol *sym;
+ asymbol *sym = NULL;
+ bfd_boolean skip_find = FALSE;
+
+ aux = (struct objdump_disasm_info *) info->application_data;
if (sorted_symcount < 1)
{
(*info->fprintf_func) (info->stream, "0x");
objdump_print_value (vma, info, skip_zeroes);
+
+ if (display_file_offsets)
+ info->fprintf_func (info->stream, _(" (File Offset: 0x%lx)"),
+ (long int)(aux->sec->filepos + (vma - aux->sec->vma)));
return;
}
- aux = (struct objdump_disasm_info *) info->application_data;
- sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
- NULL);
+ if (aux->reloc != NULL
+ && aux->reloc->sym_ptr_ptr != NULL
+ && * aux->reloc->sym_ptr_ptr != NULL)
+ {
+ sym = * aux->reloc->sym_ptr_ptr;
+
+ /* Adjust the vma to the reloc. */
+ vma += bfd_asymbol_value (sym);
+
+ if (bfd_is_und_section (bfd_get_section (sym)))
+ skip_find = TRUE;
+ }
+
+ if (!skip_find)
+ sym = find_symbol_for_address (vma, info, NULL);
+
objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
skip_zeroes);
}
objdump_print_addr (vma, info, ! prefix_addresses);
}
-/* Determine of the given address has a symbol associated with it. */
+/* Determine if the given address has a symbol associated with it. */
static int
objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * info)
{
- struct objdump_disasm_info * aux;
asymbol * sym;
- /* No symbols - do not bother checking. */
- if (sorted_symcount < 1)
- return 0;
-
- aux = (struct objdump_disasm_info *) info->application_data;
- sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
- NULL);
+ sym = find_symbol_for_address (vma, info, NULL);
return (sym != NULL && (bfd_asymbol_value (sym) == vma));
}
static unsigned int prev_line;
/* We keep a list of all files that we have seen when doing a
- dissassembly with source, so that we know how much of the file to
+ disassembly with source, so that we know how much of the file to
display. This can be important for inlined functions. */
struct print_file_list
struct print_file_list *next;
const char *filename;
const char *modname;
- unsigned int line;
- FILE *f;
+ const char *map;
+ size_t mapsize;
+ const char **linemap;
+ unsigned maxline;
+ unsigned last_line;
+ int first;
};
static struct print_file_list *print_files;
#define SHOW_PRECEDING_CONTEXT_LINES (5)
+/* Read a complete file into memory. */
+
+static const char *
+slurp_file (const char *fn, size_t *size)
+{
+#ifdef HAVE_MMAP
+ int ps = getpagesize ();
+ size_t msize;
+#endif
+ const char *map;
+ struct stat st;
+ int fd = open (fn, O_RDONLY);
+
+ if (fd < 0)
+ return NULL;
+ if (fstat (fd, &st) < 0)
+ return NULL;
+ *size = st.st_size;
+#ifdef HAVE_MMAP
+ msize = (*size + ps - 1) & ~(ps - 1);
+ map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0);
+ if (map != (char *)-1L)
+ {
+ close(fd);
+ return map;
+ }
+#endif
+ map = malloc (*size);
+ if (!map || (size_t) read (fd, (char *)map, *size) != *size)
+ {
+ free ((void *)map);
+ map = NULL;
+ }
+ close (fd);
+ return map;
+}
+
+#define line_map_decrease 5
+
+/* Precompute array of lines for a mapped file. */
+
+static const char **
+index_file (const char *map, size_t size, unsigned int *maxline)
+{
+ const char *p, *lstart, *end;
+ int chars_per_line = 45; /* First iteration will use 40. */
+ unsigned int lineno;
+ const char **linemap = NULL;
+ unsigned long line_map_size = 0;
+
+ lineno = 0;
+ lstart = map;
+ end = map + size;
+
+ for (p = map; p < end; p++)
+ {
+ if (*p == '\n')
+ {
+ if (p + 1 < end && p[1] == '\r')
+ p++;
+ }
+ else if (*p == '\r')
+ {
+ if (p + 1 < end && p[1] == '\n')
+ p++;
+ }
+ else
+ continue;
+
+ /* End of line found. */
+
+ if (linemap == NULL || line_map_size < lineno + 1)
+ {
+ unsigned long newsize;
+
+ chars_per_line -= line_map_decrease;
+ if (chars_per_line <= 1)
+ chars_per_line = 1;
+ line_map_size = size / chars_per_line + 1;
+ if (line_map_size < lineno + 1)
+ line_map_size = lineno + 1;
+ newsize = line_map_size * sizeof (char *);
+ linemap = xrealloc (linemap, newsize);
+ }
+
+ linemap[lineno++] = lstart;
+ lstart = p + 1;
+ }
+
+ *maxline = lineno;
+ return linemap;
+}
+
/* Tries to open MODNAME, and if successful adds a node to print_files
linked list and returns that node. Returns NULL on failure. */
try_print_file_open (const char *origname, const char *modname)
{
struct print_file_list *p;
- FILE *f;
- f = fopen (modname, "r");
- if (f == NULL)
- return NULL;
+ p = xmalloc (sizeof (struct print_file_list));
- if (print_files != NULL && print_files->f != NULL)
+ p->map = slurp_file (modname, &p->mapsize);
+ if (p->map == NULL)
{
- fclose (print_files->f);
- print_files->f = NULL;
+ free (p);
+ return NULL;
}
-
- p = xmalloc (sizeof (struct print_file_list));
+
+ p->linemap = index_file (p->map, p->mapsize, &p->maxline);
+ p->last_line = 0;
p->filename = origname;
p->modname = modname;
- p->line = 0;
- p->f = f;
p->next = print_files;
+ p->first = 1;
print_files = p;
return p;
}
return NULL;
}
-/* Skip ahead to a given line in a file, optionally printing each
- line. */
+/* Print a source file line. */
-static void
-skip_to_line (struct print_file_list *p, unsigned int line,
- bfd_boolean show)
+static void
+print_line (struct print_file_list *p, unsigned int line)
{
- while (p->line < line)
- {
- char buf[100];
-
- if (fgets (buf, sizeof buf, p->f) == NULL)
- {
- fclose (p->f);
- p->f = NULL;
- break;
- }
+ const char *l;
+ size_t len;
+
+ --line;
+ if (line >= p->maxline)
+ return;
+ l = p->linemap [line];
+ /* Test fwrite return value to quiet glibc warning. */
+ len = strcspn (l, "\n\r");
+ if (len == 0 || fwrite (l, len, 1, stdout) == 1)
+ putchar ('\n');
+}
- if (show)
- printf ("%s", buf);
+/* Print a range of source code lines. */
- if (strchr (buf, '\n') != NULL)
- ++p->line;
+static void
+dump_lines (struct print_file_list *p, unsigned int start, unsigned int end)
+{
+ if (p->map == NULL)
+ return;
+ while (start <= end)
+ {
+ print_line (p, start);
+ start++;
}
}
-/* Show the line number, or the source line, in a dissassembly
+/* Show the line number, or the source line, in a disassembly
listing. */
static void
&& line > 0)
{
struct print_file_list **pp, *p;
+ unsigned l;
for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
if (strcmp ((*pp)->filename, filename) == 0)
break;
p = *pp;
- if (p != NULL)
- {
- if (p != print_files)
- {
- int l;
-
- /* We have reencountered a file name which we saw
- earlier. This implies that either we are dumping out
- code from an included file, or the same file was
- linked in more than once. There are two common cases
- of an included file: inline functions in a header
- file, and a bison or flex skeleton file. In the
- former case we want to just start printing (but we
- back up a few lines to give context); in the latter
- case we want to continue from where we left off. I
- can't think of a good way to distinguish the cases,
- so I used a heuristic based on the file name. */
- if (strcmp (p->filename + strlen (p->filename) - 2, ".h") != 0)
- l = p->line;
- else
- {
- l = line - SHOW_PRECEDING_CONTEXT_LINES;
- if (l < 0)
- l = 0;
- }
-
- if (p->f == NULL)
- {
- p->f = fopen (p->modname, "r");
- p->line = 0;
- }
- if (p->f != NULL)
- skip_to_line (p, l, FALSE);
-
- if (print_files->f != NULL)
- {
- fclose (print_files->f);
- print_files->f = NULL;
- }
- }
-
- if (p->f != NULL)
- {
- skip_to_line (p, line, TRUE);
- *pp = p->next;
- p->next = print_files;
- print_files = p;
- }
- }
- else
- {
+ if (p == NULL)
p = update_source_path (filename);
- if (p != NULL)
+ if (p != NULL && line != p->last_line)
+ {
+ if (file_start_context && p->first)
+ l = 1;
+ else
{
- int l;
-
- if (file_start_context)
- l = 0;
- else
- l = line - SHOW_PRECEDING_CONTEXT_LINES;
- if (l < 0)
- l = 0;
- skip_to_line (p, l, FALSE);
- if (p->f != NULL)
- skip_to_line (p, line, TRUE);
+ l = line - SHOW_PRECEDING_CONTEXT_LINES;
+ if (l >= line)
+ l = 1;
+ if (p->last_line >= l && p->last_line <= line)
+ l = p->last_line + 1;
}
+ dump_lines (p, l, line);
+ p->last_line = line;
+ p->first = 0;
}
}
typedef struct
{
char *buffer;
- size_t size;
- char *current;
+ size_t pos;
+ size_t alloc;
} SFILE;
/* sprintf to a "stream". */
-static int
+static int ATTRIBUTE_PRINTF_2
objdump_sprintf (SFILE *f, const char *format, ...)
{
- char *buf;
size_t n;
va_list args;
- va_start (args, format);
-
- vasprintf (&buf, format, args);
-
- if (buf == NULL)
+ while (1)
{
+ size_t space = f->alloc - f->pos;
+
+ va_start (args, format);
+ n = vsnprintf (f->buffer + f->pos, space, format, args);
va_end (args);
- fatal (_("Out of virtual memory"));
- }
- n = strlen (buf);
-
- while ((size_t) ((f->buffer + f->size) - f->current) < n + 1)
- {
- size_t curroff;
-
- curroff = f->current - f->buffer;
- f->size *= 2;
- f->buffer = xrealloc (f->buffer, f->size);
- f->current = f->buffer + curroff;
+ if (space > n)
+ break;
+
+ f->alloc = (f->alloc + n) * 2;
+ f->buffer = xrealloc (f->buffer, f->alloc);
}
-
- memcpy (f->current, buf, n);
- f->current += n;
- f->current[0] = '\0';
-
- free (buf);
-
- va_end (args);
+ f->pos += n;
+
return n;
}
/* The number of zeroes we want to see before we start skipping them.
The number is arbitrarily chosen. */
-#ifndef SKIP_ZEROES
-#define SKIP_ZEROES (8)
-#endif
+#define DEFAULT_SKIP_ZEROES 8
/* The number of zeroes to skip at the end of a section. If the
number of zeroes at the end is between SKIP_ZEROES_AT_END and
attempt to avoid disassembling zeroes inserted by section
alignment. */
-#ifndef SKIP_ZEROES_AT_END
-#define SKIP_ZEROES_AT_END (3)
-#endif
+#define DEFAULT_SKIP_ZEROES_AT_END 3
/* Disassemble some data in memory between given values. */
bfd_boolean done_dot;
int skip_addr_chars;
bfd_vma addr_offset;
- int opb = info->octets_per_byte;
+ unsigned int opb = info->octets_per_byte;
+ unsigned int skip_zeroes = info->skip_zeroes;
+ unsigned int skip_zeroes_at_end = info->skip_zeroes_at_end;
+ int octets = opb;
+ SFILE sfile;
aux = (struct objdump_disasm_info *) info->application_data;
section = aux->sec;
+ sfile.alloc = 120;
+ sfile.buffer = xmalloc (sfile.alloc);
+ sfile.pos = 0;
+
if (insns)
octets_per_line = 4;
else
while (addr_offset < stop_offset)
{
bfd_vma z;
- int octets = 0;
bfd_boolean need_nl = FALSE;
+ int previous_octets;
+
+ /* Remember the length of the previous instruction. */
+ previous_octets = octets;
+ octets = 0;
/* If we see more than SKIP_ZEROES octets of zeroes, we just
print `...'. */
if (! disassemble_zeroes
&& (info->insn_info_valid == 0
|| info->branch_delay_insns == 0)
- && (z - addr_offset * opb >= SKIP_ZEROES
+ && (z - addr_offset * opb >= skip_zeroes
|| (z == stop_offset * opb &&
- z - addr_offset * opb < SKIP_ZEROES_AT_END)))
+ z - addr_offset * opb < skip_zeroes_at_end)))
{
- printf ("\t...\n");
-
/* If there are more nonzero octets to follow, we only skip
zeroes in multiples of 4, to try to avoid running over
the start of an instruction which happens to start with
z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
octets = z - addr_offset * opb;
+
+ /* If we are going to display more data, and we are displaying
+ file offsets, then tell the user how many zeroes we skip
+ and the file offset from where we resume dumping. */
+ if (display_file_offsets && ((addr_offset + (octets / opb)) < stop_offset))
+ printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
+ octets / opb,
+ (long int)(section->filepos + (addr_offset + (octets / opb))));
+ else
+ printf ("\t...\n");
}
else
{
char buf[50];
- SFILE sfile;
int bpc = 0;
int pb = 0;
done_dot = FALSE;
if (with_line_numbers || with_source_code)
- /* The line number tables will refer to unadjusted
- section VMAs, so we must undo any VMA modifications
- when calling show_line. */
- show_line (aux->abfd, section, addr_offset - adjust_section_vma);
+ show_line (aux->abfd, section, addr_offset);
if (! prefix_addresses)
{
if (insns)
{
- sfile.size = 120;
- sfile.buffer = xmalloc (sfile.size);
- sfile.current = sfile.buffer;
+ sfile.pos = 0;
info->fprintf_func = (fprintf_ftype) objdump_sprintf;
- info->stream = (FILE *) &sfile;
+ info->stream = &sfile;
info->bytes_per_line = 0;
info->bytes_per_chunk = 0;
+ info->flags = 0;
-#ifdef DISASSEMBLER_NEEDS_RELOCS
- /* FIXME: This is wrong. It tests the number of octets
- in the last instruction, not the current one. */
- if (*relppp < relppend
- && (**relppp)->address >= rel_offset + addr_offset
- && ((**relppp)->address
- < rel_offset + addr_offset + octets / opb))
- info->flags = INSN_HAS_RELOC;
- else
-#endif
- info->flags = 0;
+ if (info->disassembler_needs_relocs
+ && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0
+ && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0
+ && *relppp < relppend)
+ {
+ bfd_signed_vma distance_to_rel;
+
+ distance_to_rel = (**relppp)->address
+ - (rel_offset + addr_offset);
+
+ /* Check to see if the current reloc is associated with
+ the instruction that we are about to disassemble. */
+ if (distance_to_rel == 0
+ /* FIXME: This is wrong. We are trying to catch
+ relocs that are addressed part way through the
+ current instruction, as might happen with a packed
+ VLIW instruction. Unfortunately we do not know the
+ length of the current instruction since we have not
+ disassembled it yet. Instead we take a guess based
+ upon the length of the previous instruction. The
+ proper solution is to have a new target-specific
+ disassembler function which just returns the length
+ of an instruction at a given address without trying
+ to display its disassembly. */
+ || (distance_to_rel > 0
+ && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
+ {
+ info->flags = INSN_HAS_RELOC;
+ aux->reloc = **relppp;
+ }
+ else
+ aux->reloc = NULL;
+ }
octets = (*disassemble_fn) (section->vma + addr_offset, info);
info->fprintf_func = (fprintf_ftype) fprintf;
octets_per_line = info->bytes_per_line;
if (octets < 0)
{
- if (sfile.current != sfile.buffer)
+ if (sfile.pos)
printf ("%s\n", sfile.buffer);
- free (sfile.buffer);
break;
}
}
for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
{
int k;
+
if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
{
for (k = bpc - 1; k >= 0; k--)
if (! insns)
printf ("%s", buf);
- else
- {
- printf ("%s", sfile.buffer);
- free (sfile.buffer);
- }
+ else if (sfile.pos)
+ printf ("%s", sfile.buffer);
if (prefix_addresses
? show_raw_insn > 0
else
printf ("\t\t\t");
- objdump_print_value (section->vma + q->address, info, TRUE);
+ objdump_print_value (section->vma - rel_offset + q->address,
+ info, TRUE);
- printf (": %s\t", q->howto->name);
+ if (q->howto == NULL)
+ printf (": *unknown*\t");
+ else if (q->howto->name)
+ printf (": %s\t", q->howto->name);
+ else
+ printf (": %d\t", q->howto->type);
if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
printf ("*unknown*");
addr_offset += octets / opb;
}
+
+ free (sfile.buffer);
}
static void
disassemble_section (bfd *abfd, asection *section, void *info)
{
struct disassemble_info * pinfo = (struct disassemble_info *) info;
- struct objdump_disasm_info * paux = (struct objdump_disasm_info *) pinfo->application_data;
+ struct objdump_disasm_info * paux;
unsigned int opb = pinfo->octets_per_byte;
bfd_byte * data = NULL;
bfd_size_type datasize = 0;
code are not normally disassembled. */
if (! disassemble_all
&& only == NULL
- && (section->flags & SEC_CODE) == 0)
+ && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
+ != (SEC_CODE | SEC_HAS_CONTENTS)))
return;
if (! process_section_p (section))
return;
- datasize = bfd_get_section_size_before_reloc (section);
+ datasize = bfd_get_section_size (section);
if (datasize == 0)
return;
/* Decide which set of relocs to use. Load them if necessary. */
+ paux = (struct objdump_disasm_info *) pinfo->application_data;
if (paux->dynrelbuf)
{
rel_pp = paux->dynrelbuf;
rel_count = paux->dynrelcount;
/* Dynamic reloc addresses are absolute, non-dynamic are section
- relative. REL_OFFSET specifies the reloc address corresponnding
+ relative. REL_OFFSET specifies the reloc address corresponding
to the start of this section. */
- rel_offset = pinfo->buffer_vma;
+ rel_offset = section->vma;
}
else
{
rel_offset = 0;
if ((section->flags & SEC_RELOC) != 0
-#ifndef DISASSEMBLER_NEEDS_RELOCS
- && dump_reloc_info
-#endif
- )
+ && (dump_reloc_info || pinfo->disassembler_needs_relocs))
{
long relsize;
&& (*rel_pp)->address < rel_offset + addr_offset)
++rel_pp;
- printf (_("Disassembly of section %s:\n"), section->name);
+ if (addr_offset < stop_offset)
+ printf (_("\nDisassembly of section %s:\n"), section->name);
/* Find the nearest symbol forwards from our current position. */
- sym = find_symbol_for_address (abfd, section, section->vma + addr_offset,
- TRUE, &place);
+ paux->require_sec = TRUE;
+ sym = find_symbol_for_address (section->vma + addr_offset, info, &place);
+ paux->require_sec = FALSE;
/* Disassemble a block of instructions up to the address associated with
the symbol we have just found. Then print the symbol and find the
or we have reached the end of the address range we are interested in. */
while (addr_offset < stop_offset)
{
+ bfd_vma addr;
asymbol *nextsym;
unsigned long nextstop_offset;
bfd_boolean insns;
- if (sym != NULL
- && bfd_asymbol_value (sym) <= section->vma + addr_offset)
+ addr = section->vma + addr_offset;
+
+ if (sym != NULL && bfd_asymbol_value (sym) <= addr)
{
int x;
for (x = place;
(x < sorted_symcount
- && (bfd_asymbol_value (sorted_syms[x])
- <= section->vma + addr_offset));
+ && (bfd_asymbol_value (sorted_syms[x]) <= addr));
++x)
continue;
- pinfo->symbols = & sorted_syms[place];
+ pinfo->symbols = sorted_syms + place;
pinfo->num_symbols = x - place;
+ pinfo->symtab_pos = place;
}
else
- pinfo->symbols = NULL;
+ {
+ pinfo->symbols = NULL;
+ pinfo->num_symbols = 0;
+ pinfo->symtab_pos = -1;
+ }
if (! prefix_addresses)
{
pinfo->fprintf_func (pinfo->stream, "\n");
- objdump_print_addr_with_sym (abfd, section, sym,
- section->vma + addr_offset,
+ objdump_print_addr_with_sym (abfd, section, sym, addr,
pinfo, FALSE);
pinfo->fprintf_func (pinfo->stream, ":\n");
}
- if (sym != NULL
- && bfd_asymbol_value (sym) > section->vma + addr_offset)
+ if (sym != NULL && bfd_asymbol_value (sym) > addr)
nextsym = sym;
else if (sym == NULL)
nextsym = NULL;
else
{
+#define is_valid_next_sym(SYM) \
+ ((SYM)->section == section \
+ && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
+ && pinfo->symbol_is_valid (SYM, pinfo))
+
/* Search forward for the next appropriate symbol in
SECTION. Note that all the symbols are sorted
together into one big array, and that some sections
may have overlapping addresses. */
while (place < sorted_symcount
- && (sorted_syms[place]->section != section
- || (bfd_asymbol_value (sorted_syms[place])
- <= bfd_asymbol_value (sym))))
+ && ! is_valid_next_sym (sorted_syms [place]))
++place;
+
if (place >= sorted_symcount)
nextsym = NULL;
else
nextsym = sorted_syms[place];
}
- if (sym != NULL
- && bfd_asymbol_value (sym) > section->vma + addr_offset)
- {
- nextstop_offset = bfd_asymbol_value (sym) - section->vma;
- if (nextstop_offset > stop_offset)
- nextstop_offset = stop_offset;
- }
+ if (sym != NULL && bfd_asymbol_value (sym) > addr)
+ nextstop_offset = bfd_asymbol_value (sym) - section->vma;
else if (nextsym == NULL)
nextstop_offset = stop_offset;
else
- {
- nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
- if (nextstop_offset > stop_offset)
- nextstop_offset = stop_offset;
- }
+ nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
+
+ if (nextstop_offset > stop_offset)
+ nextstop_offset = stop_offset;
/* If a symbol is explicitly marked as being an object
rather than a function, just dump the bytes without
disassembling them. */
if (disassemble_all
|| sym == NULL
- || bfd_asymbol_value (sym) > section->vma + addr_offset
+ || bfd_asymbol_value (sym) > addr
|| ((sym->flags & BSF_OBJECT) == 0
&& (strstr (bfd_asymbol_name (sym), "gnu_compiled")
== NULL)
{
struct disassemble_info disasm_info;
struct objdump_disasm_info aux;
+ long i;
print_files = NULL;
prev_functionname = NULL;
/* We make a copy of syms to sort. We don't want to sort syms
because that will screw up the relocs. */
- sorted_syms = xmalloc (symcount * sizeof (asymbol *));
- memcpy (sorted_syms, syms, symcount * sizeof (asymbol *));
+ sorted_symcount = symcount ? symcount : dynsymcount;
+ sorted_syms = xmalloc ((sorted_symcount + synthcount) * sizeof (asymbol *));
+ memcpy (sorted_syms, symcount ? syms : dynsyms,
+ sorted_symcount * sizeof (asymbol *));
+
+ sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
- sorted_symcount = remove_useless_symbols (sorted_syms, symcount);
+ for (i = 0; i < synthcount; ++i)
+ {
+ sorted_syms[sorted_symcount] = synthsyms + i;
+ ++sorted_symcount;
+ }
/* Sort the symbols into section and symbol order. */
qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
- INIT_DISASSEMBLE_INFO (disasm_info, stdout, fprintf);
+ init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
disasm_info.application_data = (void *) &aux;
aux.abfd = abfd;
aux.require_sec = FALSE;
aux.dynrelbuf = NULL;
aux.dynrelcount = 0;
+ aux.reloc = NULL;
disasm_info.print_address_func = objdump_print_address;
disasm_info.symbol_at_address_func = objdump_symbol_at_address;
disasm_info.mach = bfd_get_mach (abfd);
disasm_info.disassembler_options = disassembler_options;
disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
+ disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
+ disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
+ disasm_info.disassembler_needs_relocs = FALSE;
if (bfd_big_endian (abfd))
disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
instead. */
disasm_info.endian = BFD_ENDIAN_UNKNOWN;
+ /* Allow the target to customize the info structure. */
+ disassemble_init_for_target (& disasm_info);
+
/* Pre-load the dynamic relocs if we are going
to be dumping them along with the disassembly. */
if (dump_dynamic_reloc_info)
if (relsize > 0)
{
aux.dynrelbuf = xmalloc (relsize);
- aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd, aux.dynrelbuf, dynsyms);
+ aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
+ aux.dynrelbuf,
+ dynsyms);
if (aux.dynrelcount < 0)
bfd_fatal (bfd_get_filename (abfd));
/* Sort the relocs by address. */
- qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *), compare_relocs);
+ qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
+ compare_relocs);
}
}
+ disasm_info.symtab = sorted_syms;
+ disasm_info.symtab_size = sorted_symcount;
bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
free (sorted_syms);
}
\f
-/* Read ABFD's stabs section STABSECT_NAME into `stabs'
- and string table section STRSECT_NAME into `strtab'.
- If the section exists and was read, allocate the space and return TRUE.
- Otherwise return FALSE. */
+int
+load_debug_section (enum dwarf_section_display_enum debug, void *file)
+{
+ struct dwarf_section *section = &debug_displays [debug].section;
+ bfd *abfd = file;
+ asection *sec;
+ bfd_boolean ret;
-static bfd_boolean
-read_section_stabs (bfd *abfd, const char *stabsect_name,
- const char *strsect_name)
+ /* If it is already loaded, do nothing. */
+ if (section->start != NULL)
+ return 1;
+
+ /* Locate the debug section. */
+ sec = bfd_get_section_by_name (abfd, section->name);
+ if (sec == NULL)
+ return 0;
+
+ /* Compute a bias to be added to offsets found within the DWARF debug
+ information. These offsets are meant to be relative to the start of
+ the dwarf section, and hence the bias should be 0. For MACH-O however
+ a dwarf section is really just a region of a much larger section and so
+ the bias is the address of the start of that area within the larger
+ section. This test is important for PE and COFF based targets which
+ use DWARF debug information, since unlike ELF, they do not allow the
+ dwarf sections to be placed at address 0. */
+ if (bfd_get_flavour (abfd) == bfd_target_mach_o_flavour)
+ section->address = bfd_get_section_vma (abfd, sec);
+ else
+ section->address = 0;
+
+ section->size = bfd_get_section_size (sec);
+ section->start = xmalloc (section->size);
+
+ if (is_relocatable && debug_displays [debug].relocate)
+ ret = bfd_simple_get_relocated_section_contents (abfd,
+ sec,
+ section->start,
+ syms) != NULL;
+ else
+ ret = bfd_get_section_contents (abfd, sec, section->start, 0,
+ section->size);
+
+ if (!ret)
+ {
+ free_debug_section (debug);
+ printf (_("\nCan't get contents for section '%s'.\n"),
+ section->name);
+ }
+
+ return ret;
+}
+
+void
+free_debug_section (enum dwarf_section_display_enum debug)
{
- asection *stabsect, *stabstrsect;
+ struct dwarf_section *section = &debug_displays [debug].section;
- stabsect = bfd_get_section_by_name (abfd, stabsect_name);
- if (stabsect == NULL)
+ if (section->start == NULL)
+ return;
+
+ free ((char *) section->start);
+ section->start = NULL;
+ section->address = 0;
+ section->size = 0;
+}
+
+static void
+dump_dwarf_section (bfd *abfd, asection *section,
+ void *arg ATTRIBUTE_UNUSED)
+{
+ const char *name = bfd_get_section_name (abfd, section);
+ const char *match;
+ enum dwarf_section_display_enum i;
+
+ if (CONST_STRNEQ (name, ".gnu.linkonce.wi."))
+ match = ".debug_info";
+ else
+ match = name;
+
+ for (i = 0; i < max; i++)
+ if (strcmp (debug_displays[i].section.name, match) == 0)
+ {
+ if (!debug_displays[i].eh_frame)
+ {
+ struct dwarf_section *sec = &debug_displays [i].section;
+
+ if (load_debug_section (i, abfd))
+ {
+ debug_displays[i].display (sec, abfd);
+
+ if (i != info && i != abbrev)
+ free_debug_section (i);
+ }
+ }
+ break;
+ }
+}
+
+static const char *mach_o_dwarf_sections [] = {
+ "LC_SEGMENT.__DWARFA.__debug_abbrev", /* .debug_abbrev */
+ "LC_SEGMENT.__DWARFA.__debug_aranges", /* .debug_aranges */
+ "LC_SEGMENT.__DWARFA.__debug_frame", /* .debug_frame */
+ "LC_SEGMENT.__DWARFA.__debug_info", /* .debug_info */
+ "LC_SEGMENT.__DWARFA.__debug_line", /* .debug_line */
+ "LC_SEGMENT.__DWARFA.__debug_pubnames", /* .debug_pubnames */
+ ".eh_frame", /* .eh_frame */
+ "LC_SEGMENT.__DWARFA.__debug_macinfo", /* .debug_macinfo */
+ "LC_SEGMENT.__DWARFA.__debug_str", /* .debug_str */
+ "LC_SEGMENT.__DWARFA.__debug_loc", /* .debug_loc */
+ "LC_SEGMENT.__DWARFA.__debug_pubtypes", /* .debug_pubtypes */
+ "LC_SEGMENT.__DWARFA.__debug_ranges", /* .debug_ranges */
+ "LC_SEGMENT.__DWARFA.__debug_static_func", /* .debug_static_func */
+ "LC_SEGMENT.__DWARFA.__debug_static_vars", /* .debug_static_vars */
+ "LC_SEGMENT.__DWARFA.__debug_types", /* .debug_types */
+ "LC_SEGMENT.__DWARFA.__debug_weaknames" /* .debug_weaknames */
+};
+
+static const char *generic_dwarf_sections [max];
+
+static void
+check_mach_o_dwarf (bfd *abfd)
+{
+ static enum bfd_flavour old_flavour = bfd_target_unknown_flavour;
+ enum bfd_flavour current_flavour = bfd_get_flavour (abfd);
+ enum dwarf_section_display_enum i;
+
+ if (generic_dwarf_sections [0] == NULL)
+ for (i = 0; i < max; i++)
+ generic_dwarf_sections [i] = debug_displays[i].section.name;
+
+ if (old_flavour != current_flavour)
{
- printf (_("No %s section present\n\n"), stabsect_name);
- return FALSE;
+ if (current_flavour == bfd_target_mach_o_flavour)
+ for (i = 0; i < max; i++)
+ debug_displays[i].section.name = mach_o_dwarf_sections [i];
+ else if (old_flavour == bfd_target_mach_o_flavour)
+ for (i = 0; i < max; i++)
+ debug_displays[i].section.name = generic_dwarf_sections [i];
+
+ old_flavour = current_flavour;
}
+}
+
+/* Dump the dwarf debugging information. */
+
+static void
+dump_dwarf (bfd *abfd)
+{
+ is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
- stabstrsect = bfd_get_section_by_name (abfd, strsect_name);
- if (stabstrsect == NULL)
+ /* FIXME: bfd_get_arch_size may return -1. We assume that 64bit
+ targets will return 64. */
+ eh_addr_size = bfd_get_arch_size (abfd) == 64 ? 8 : 4;
+
+ if (bfd_big_endian (abfd))
+ byte_get = byte_get_big_endian;
+ else if (bfd_little_endian (abfd))
+ byte_get = byte_get_little_endian;
+ else
+ abort ();
+
+ check_mach_o_dwarf (abfd);
+
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
{
- non_fatal (_("%s has no %s section"),
- bfd_get_filename (abfd), strsect_name);
- exit_status = 1;
- return FALSE;
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ init_dwarf_regnames (bed->elf_machine_code);
}
- stab_size = bfd_section_size (abfd, stabsect);
- stabstr_size = bfd_section_size (abfd, stabstrsect);
+ bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
- stabs = xmalloc (stab_size);
- strtab = xmalloc (stabstr_size);
+ free_debug_memory ();
+}
+\f
+/* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
+ it. Return NULL on failure. */
- if (! bfd_get_section_contents (abfd, stabsect, stabs, 0, stab_size))
+static char *
+read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
+{
+ asection *stabsect;
+ bfd_size_type size;
+ char *contents;
+
+ stabsect = bfd_get_section_by_name (abfd, sect_name);
+ if (stabsect == NULL)
{
- non_fatal (_("Reading %s section of %s failed: %s"),
- stabsect_name, bfd_get_filename (abfd),
- bfd_errmsg (bfd_get_error ()));
- free (stabs);
- free (strtab);
- exit_status = 1;
+ printf (_("No %s section present\n\n"), sect_name);
return FALSE;
}
- if (! bfd_get_section_contents (abfd, stabstrsect, (void *) strtab, 0,
- stabstr_size))
+ size = bfd_section_size (abfd, stabsect);
+ contents = xmalloc (size);
+
+ if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
{
- non_fatal (_("Reading %s section of %s failed: %s\n"),
- strsect_name, bfd_get_filename (abfd),
+ non_fatal (_("Reading %s section of %s failed: %s"),
+ sect_name, bfd_get_filename (abfd),
bfd_errmsg (bfd_get_error ()));
- free (stabs);
- free (strtab);
+ free (contents);
exit_status = 1;
- return FALSE;
+ return NULL;
}
- return TRUE;
+ *size_ptr = size;
+
+ return contents;
}
/* Stabs entries use a 12 byte format:
using string table section STRSECT_NAME (in `strtab'). */
static void
-print_section_stabs (bfd *abfd, const char *stabsect_name)
+print_section_stabs (bfd *abfd,
+ const char *stabsect_name,
+ unsigned *string_offset_ptr)
{
int i;
unsigned file_string_table_offset = 0;
- unsigned next_file_string_table_offset = 0;
+ unsigned next_file_string_table_offset = *string_offset_ptr;
bfd_byte *stabp, *stabs_end;
stabp = stabs;
}
}
printf ("\n\n");
+ *string_offset_ptr = next_file_string_table_offset;
}
typedef struct
{
const char * section_name;
const char * string_section_name;
+ unsigned string_offset;
}
stab_section_names;
stab_section_names * sought = (stab_section_names *) names;
/* Check for section names for which stabsect_name is a prefix, to
- handle .stab0, etc. */
+ handle .stab.N, etc. */
len = strlen (sought->section_name);
/* If the prefix matches, and the files section name ends with a
match or a section followed by a number. */
if (strncmp (sought->section_name, section->name, len) == 0
&& (section->name[len] == 0
- || ISDIGIT (section->name[len])))
+ || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
{
- if (read_section_stabs (abfd, section->name, sought->string_section_name))
+ if (strtab == NULL)
+ strtab = read_section_stabs (abfd, sought->string_section_name,
+ &stabstr_size);
+
+ if (strtab)
{
- print_section_stabs (abfd, section->name);
- free (stabs);
- free (strtab);
+ stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
+ &stab_size);
+ if (stabs)
+ print_section_stabs (abfd, section->name, &sought->string_offset);
}
}
}
s.section_name = stabsect_name;
s.string_section_name = strsect_name;
-
+ s.string_offset = 0;
+
bfd_map_over_sections (abfd, find_stabs_section, & s);
+
+ free (strtab);
+ strtab = NULL;
}
/* Dump the any sections containing stabs debugging information. */
if ((datasize = bfd_section_size (abfd, section)) == 0)
return;
- printf (_("Contents of section %s:\n"), section->name);
-
- data = xmalloc (datasize);
-
- bfd_get_section_contents (abfd, section, data, 0, datasize);
-
/* Compute the address range to display. */
if (start_address == (bfd_vma) -1
|| start_address < section->vma)
stop_offset = datasize / opb;
}
+ if (start_offset >= stop_offset)
+ return;
+
+ printf (_("Contents of section %s:"), section->name);
+ if (display_file_offsets)
+ printf (_(" (Starting at file offset: 0x%lx)"), (long int)(section->filepos + start_offset));
+ printf ("\n");
+
+ data = xmalloc (datasize);
+
+ bfd_get_section_contents (abfd, section, data, 0, datasize);
+
width = 4;
bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
bfd *cur_bfd;
if (*current == NULL)
- printf (_("no information for the %ld'th symbol"), count);
+ printf (_("no information for symbol number %ld\n"), count);
else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
- printf (_("could not determine the type of the %ld'th symbol"),
+ printf (_("could not determine the type of symbol number %ld\n"),
count);
- else
+ else if (process_section_p ((* current)->section)
+ && (dump_special_syms
+ || !bfd_is_target_special_symbol (cur_bfd, *current)))
{
const char *name = (*current)->name;
/* If we want to demangle the name, we demangle it
here, and temporarily clobber it while calling
bfd_print_symbol. FIXME: This is a gross hack. */
- alloc = demangle (cur_bfd, name);
- (*current)->name = alloc;
+ alloc = bfd_demangle (cur_bfd, name, DMGL_ANSI | DMGL_PARAMS);
+ if (alloc != NULL)
+ (*current)->name = alloc;
bfd_print_symbol (cur_bfd, stdout, *current,
bfd_print_symbol_all);
- (*current)->name = name;
- free (alloc);
+ if (alloc != NULL)
+ {
+ (*current)->name = name;
+ free (alloc);
+ }
}
else
bfd_print_symbol (cur_bfd, stdout, *current,
bfd_print_symbol_all);
+ printf ("\n");
}
- printf ("\n");
current++;
}
printf ("\n\n");
section_name = NULL;
}
+ bfd_printf_vma (abfd, q->address);
+ if (q->howto == NULL)
+ printf (" *unknown* ");
+ else if (q->howto->name)
+ printf (" %-16s ", q->howto->name);
+ else
+ printf (" %-16d ", q->howto->type);
if (sym_name)
- {
- bfd_printf_vma (abfd, q->address);
- if (q->howto->name)
- printf (" %-16s ", q->howto->name);
- else
- printf (" %-16d ", q->howto->type);
- objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
- }
+ objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
else
{
if (section_name == NULL)
section_name = "*unknown*";
- bfd_printf_vma (abfd, q->address);
- printf (" %-16s [%s]",
- q->howto->name,
- section_name);
+ printf ("[%s]", section_name);
}
if (q->addend)
}
static void
-dump_relocs_in_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
+dump_relocs_in_section (bfd *abfd,
+ asection *section,
+ void *dummy ATTRIBUTE_UNUSED)
{
arelent **relpp;
long relcount;
}
static void
-adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *dummy ATTRIBUTE_UNUSED)
+adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *section,
+ void *arg)
{
- section->vma += adjust_section_vma;
- section->lma += adjust_section_vma;
+ if ((section->flags & SEC_DEBUGGING) == 0)
+ {
+ bfd_boolean *has_reloc_p = (bfd_boolean *) arg;
+ section->vma += adjust_section_vma;
+ if (*has_reloc_p)
+ section->lma += adjust_section_vma;
+ }
}
/* Dump selected contents of ABFD. */
the BFD information is a hack. However, we must do it, or
bfd_find_nearest_line will not do the right thing. */
if (adjust_section_vma != 0)
- bfd_map_over_sections (abfd, adjust_addresses, NULL);
+ {
+ bfd_boolean has_reloc = (abfd->flags & HAS_RELOC);
+ bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
+ }
if (! dump_debugging_tags)
printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
if (dump_section_headers)
dump_headers (abfd);
- if (dump_symtab || dump_reloc_info || disassemble || dump_debugging)
+ if (dump_symtab
+ || dump_reloc_info
+ || disassemble
+ || dump_debugging
+ || dump_dwarf_section_info)
syms = slurp_symtab (abfd);
- if (dump_dynamic_symtab || dump_dynamic_reloc_info)
+ if (dump_dynamic_symtab || dump_dynamic_reloc_info
+ || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
dynsyms = slurp_dynamic_symtab (abfd);
+ if (disassemble)
+ {
+ synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
+ dynsymcount, dynsyms, &synthsyms);
+ if (synthcount < 0)
+ synthcount = 0;
+ }
if (dump_symtab)
dump_symbols (abfd, FALSE);
if (dump_dynamic_symtab)
dump_symbols (abfd, TRUE);
+ if (dump_dwarf_section_info)
+ dump_dwarf (abfd);
if (dump_stab_section_info)
dump_stabs (abfd);
if (dump_reloc_info && ! disassemble)
dhandle = read_debugging_info (abfd, syms, symcount);
if (dhandle != NULL)
{
- if (! print_debugging_info (stdout, dhandle, abfd, syms, demangle,
- dump_debugging_tags ? TRUE : FALSE))
+ if (!print_debugging_info (stdout, dhandle, abfd, syms,
+ bfd_demangle,
+ dump_debugging_tags ? TRUE : FALSE))
{
non_fatal (_("%s: printing debugging information failed"),
bfd_get_filename (abfd));
free (dynsyms);
dynsyms = NULL;
}
+
+ if (synthsyms)
+ {
+ free (synthsyms);
+ synthsyms = NULL;
+ }
+
+ symcount = 0;
+ dynsymcount = 0;
+ synthcount = 0;
}
static void
static void
display_file (char *filename, char *target)
{
- bfd *file, *arfile = NULL;
+ bfd *file;
+ bfd *arfile = NULL;
+
+ if (get_file_size (filename) < 1)
+ {
+ exit_status = 1;
+ return;
+ }
file = bfd_openr (filename, target);
if (file == NULL)
START_PROGRESS (program_name, 0);
+ expandargv (&argc, &argv);
+
bfd_init ();
set_default_bfd_target ();
- while ((c = getopt_long (argc, argv, "pib:m:M:VvCdDlfaHhrRtTxsSI:j:wE:zgeG",
+ while ((c = getopt_long (argc, argv, "pib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW",
long_options, (int *) 0))
!= EOF)
{
if (disassembler_options)
/* Ignore potential memory leak for now. */
disassembler_options = concat (disassembler_options, ",",
- optarg, NULL);
+ optarg, (const char *) NULL);
else
disassembler_options = optarg;
break;
}
only [only_used++] = optarg;
break;
+ case 'F':
+ display_file_offsets = TRUE;
+ break;
case 'l':
with_line_numbers = TRUE;
break;
break;
case OPTION_START_ADDRESS:
start_address = parse_vma (optarg, "--start-address");
+ if ((stop_address != (bfd_vma) -1) && stop_address <= start_address)
+ fatal (_("error: the start address should be before the end address"));
break;
case OPTION_STOP_ADDRESS:
stop_address = parse_vma (optarg, "--stop-address");
+ if ((start_address != (bfd_vma) -1) && stop_address <= start_address)
+ fatal (_("error: the stop address should be after the start address"));
break;
case 'E':
if (strcmp (optarg, "B") == 0)
do_demangle = TRUE;
seenflag = TRUE;
break;
+ case 'W':
+ dump_dwarf_section_info = TRUE;
+ seenflag = TRUE;
+ do_debug_info = 1;
+ do_debug_abbrevs = 1;
+ do_debug_lines = 1;
+ do_debug_pubnames = 1;
+ do_debug_aranges = 1;
+ do_debug_ranges = 1;
+ do_debug_frames = 1;
+ do_debug_macinfo = 1;
+ do_debug_str = 1;
+ do_debug_loc = 1;
+ break;
case 'G':
dump_stab_section_info = TRUE;
seenflag = TRUE;
projects / deliverable / binutils-gdb.git / blobdiff