/* dwarf2dbg.c - DWARF2 debug support
- Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of GAS, the GNU Assembler.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
/* Logical line numbers can be controlled by the compiler via the
- following two directives:
+ following directives:
.file FILENO "file.c"
- .loc FILENO LINENO [COLUMN]
+ .loc FILENO LINENO [COLUMN] [basic_block] [prologue_end] \
+ [epilogue_begin] [is_stmt VALUE] [isa VALUE]
+*/
- FILENO is the filenumber. */
-
-#include "ansidecl.h"
#include "as.h"
+#include "safe-ctype.h"
#ifdef HAVE_LIMITS_H
#include <limits.h>
#include "dwarf2dbg.h"
#include <filenames.h>
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+/* We need to decide which character to use as a directory separator.
+ Just because HAVE_DOS_BASED_FILE_SYSTEM is defined, it does not
+ necessarily mean that the backslash character is the one to use.
+ Some environments, eg Cygwin, can support both naming conventions.
+ So we use the heuristic that we only need to use the backslash if
+ the path is an absolute path starting with a DOS style drive
+ selector. eg C: or D: */
+# define INSERT_DIR_SEPARATOR(string, offset) \
+ do \
+ { \
+ if (offset > 1 \
+ && string[0] != 0 \
+ && string[1] == ':') \
+ string [offset] = '\\'; \
+ else \
+ string [offset] = '/'; \
+ } \
+ while (0)
+#else
+# define INSERT_DIR_SEPARATOR(string, offset) string[offset] = '/'
+#endif
+
#ifndef DWARF2_FORMAT
# define DWARF2_FORMAT() dwarf2_format_32bit
#endif
#ifndef DWARF2_ADDR_SIZE
-# define DWARF2_ADDR_SIZE(bfd) (bfd_arch_bits_per_address (bfd) / 8);
+# define DWARF2_ADDR_SIZE(bfd) (bfd_arch_bits_per_address (bfd) / 8)
#endif
-#ifdef BFD_ASSEMBLER
-
#include "subsegs.h"
#include "elf/dwarf2.h"
/* First special line opcde - leave room for the standard opcodes.
Note: If you want to change this, you'll have to update the
"standard_opcode_lengths" table that is emitted below in
- dwarf2_finish(). */
-#define DWARF2_LINE_OPCODE_BASE 10
+ out_debug_line(). */
+#define DWARF2_LINE_OPCODE_BASE 13
#ifndef DWARF2_LINE_BASE
/* Minimum line offset in a special line info. opcode. This value
# define DWARF2_LINE_MIN_INSN_LENGTH 1
#endif
-/* Flag that indicates the initial value of the is_stmt_start flag.
- In the present implementation, we do not mark any lines as
- the beginning of a source statement, because that information
- is not made available by the GCC front-end. */
+/* Flag that indicates the initial value of the is_stmt_start flag. */
#define DWARF2_LINE_DEFAULT_IS_STMT 1
/* Given a special op, return the line skip amount. */
struct line_entry {
struct line_entry *next;
- fragS *frag;
- addressT frag_ofs;
+ symbolS *label;
struct dwarf2_line_info loc;
};
doing work when there's nothing to do. */
static bfd_boolean loc_directive_seen;
+/* TRUE when we're supposed to set the basic block mark whenever a
+ label is seen. */
+bfd_boolean dwarf2_loc_mark_labels;
+
/* Current location as indicated by the most recent .loc directive. */
-static struct dwarf2_line_info current;
+static struct dwarf2_line_info current = {
+ 1, 1, 0, 0,
+ DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_IS_STMT : 0
+};
/* The size of an address on the target. */
static unsigned int sizeof_address;
static void out_four (int);
static void out_abbrev (int, int);
static void out_uleb128 (addressT);
-static offsetT get_frag_fix (fragS *);
-static void out_set_addr (segT, fragS *, addressT);
+static offsetT get_frag_fix (fragS *, segT);
+static void out_set_addr (symbolS *);
static int size_inc_line_addr (int, addressT);
static void emit_inc_line_addr (int, addressT, char *, int);
static void out_inc_line_addr (int, addressT);
-static void relax_inc_line_addr (int, segT, fragS *, addressT,
- fragS *, addressT);
+static void relax_inc_line_addr (int, symbolS *, symbolS *);
static void process_entries (segT, struct line_entry *);
static void out_file_list (void);
static void out_debug_line (segT);
static subsegT last_subseg;
static struct line_subseg *last_line_subseg;
- struct line_seg *s;
+ struct line_seg **ps, *s;
struct line_subseg **pss, *ss;
if (seg == last_seg && subseg == last_subseg)
return last_line_subseg;
- for (s = all_segs; s; s = s->next)
+ for (ps = &all_segs; (s = *ps) != NULL; ps = &s->next)
if (s->seg == seg)
goto found_seg;
s = (struct line_seg *) xmalloc (sizeof (*s));
- s->next = all_segs;
+ s->next = NULL;
s->seg = seg;
s->head = NULL;
- all_segs = s;
+ *ps = s;
found_seg:
for (pss = &s->head; (ss = *pss) != NULL ; pss = &ss->next)
return ss;
}
+/* Record an entry for LOC occurring at LABEL. */
+
+static void
+dwarf2_gen_line_info_1 (symbolS *label, struct dwarf2_line_info *loc)
+{
+ struct line_subseg *ss;
+ struct line_entry *e;
+
+ e = (struct line_entry *) xmalloc (sizeof (*e));
+ e->next = NULL;
+ e->label = label;
+ e->loc = *loc;
+
+ ss = get_line_subseg (now_seg, now_subseg);
+ *ss->ptail = e;
+ ss->ptail = &e->next;
+}
+
/* Record an entry for LOC occurring at OFS within the current fragment. */
void
dwarf2_gen_line_info (addressT ofs, struct dwarf2_line_info *loc)
{
- struct line_subseg *ss;
- struct line_entry *e;
static unsigned int line = -1;
static unsigned int filenum = -1;
+ symbolS *sym;
+
/* Early out for as-yet incomplete location information. */
if (loc->filenum == 0 || loc->line == 0)
return;
line = loc->line;
filenum = loc->filenum;
- e = (struct line_entry *) xmalloc (sizeof (*e));
- e->next = NULL;
- e->frag = frag_now;
- e->frag_ofs = ofs;
- e->loc = *loc;
-
- ss = get_line_subseg (now_seg, now_subseg);
- *ss->ptail = e;
- ss->ptail = &e->next;
+ sym = symbol_temp_new (now_seg, ofs, frag_now);
+ dwarf2_gen_line_info_1 (sym, loc);
}
+/* Returns the current source information. If .file directives have
+ been encountered, the info for the corresponding source file is
+ returned. Otherwise, the info for the assembly source file is
+ returned. */
+
void
dwarf2_where (struct dwarf2_line_info *line)
{
as_where (&filename, &line->line);
line->filenum = get_filenum (filename, 0);
line->column = 0;
- line->flags = DWARF2_FLAG_BEGIN_STMT;
+ line->flags = DWARF2_FLAG_IS_STMT;
+ line->isa = current.isa;
}
else
*line = current;
}
+/* A hook to allow the target backend to inform the line number state
+ machine of isa changes when assembler debug info is enabled. */
+
+void
+dwarf2_set_isa (unsigned int isa)
+{
+ current.isa = isa;
+}
+
/* Called for each machine instruction, or relatively atomic group of
machine instructions (ie built-in macro). The instruction or group
is SIZE bytes in length. If dwarf2 line number generation is called
else if (debug_type != DEBUG_DWARF2)
return;
else
- dwarf2_where (& loc);
+ dwarf2_where (&loc);
dwarf2_gen_line_info (frag_now_fix () - size, &loc);
+
+ current.flags &= ~(DWARF2_FLAG_BASIC_BLOCK
+ | DWARF2_FLAG_PROLOGUE_END
+ | DWARF2_FLAG_EPILOGUE_BEGIN);
+}
+
+/* Called for each (preferably code) label. If dwarf2_loc_mark_labels
+ is enabled, emit a basic block marker. */
+
+void
+dwarf2_emit_label (symbolS *label)
+{
+ struct dwarf2_line_info loc;
+
+ if (!dwarf2_loc_mark_labels)
+ return;
+ if (S_GET_SEGMENT (label) != now_seg)
+ return;
+ if (!(bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE))
+ return;
+
+ if (debug_type == DEBUG_DWARF2)
+ dwarf2_where (&loc);
+ else
+ {
+ loc = current;
+ loc_directive_seen = FALSE;
+ }
+
+ loc.flags |= DWARF2_FLAG_BASIC_BLOCK;
+
+ current.flags &= ~(DWARF2_FLAG_BASIC_BLOCK
+ | DWARF2_FLAG_PROLOGUE_END
+ | DWARF2_FLAG_EPILOGUE_BEGIN);
+
+ dwarf2_gen_line_info_1 (label, &loc);
}
/* Get a .debug_line file number for FILENAME. If NUM is nonzero,
{
--dir_len;
for (dir = 1; dir < dirs_in_use; ++dir)
- if (memcmp (filename, dirs[dir], dir_len) == 0
+ if (strncmp (filename, dirs[dir], dir_len) == 0
&& dirs[dir][dir_len] == '\0')
break;
files[i].filename = num ? file : xstrdup (file);
files[i].dir = dir;
- files_in_use = i + 1;
+ if (files_in_use < i + 1)
+ files_in_use = i + 1;
last_used = i;
last_used_dir_len = dir_len;
num = get_absolute_expression ();
filename = demand_copy_C_string (&filename_len);
+ if (filename == NULL)
+ return NULL;
demand_empty_rest_of_line ();
if (num < 1)
void
dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED)
{
- offsetT filenum, line, column;
+ offsetT filenum, line;
filenum = get_absolute_expression ();
SKIP_WHITESPACE ();
line = get_absolute_expression ();
- SKIP_WHITESPACE ();
- column = get_absolute_expression ();
- demand_empty_rest_of_line ();
if (filenum < 1)
{
current.filenum = filenum;
current.line = line;
- current.column = column;
- current.flags = DWARF2_FLAG_BEGIN_STMT;
-
- loc_directive_seen = TRUE;
#ifndef NO_LISTING
if (listing)
char *cp = (char *) alloca (dir_len + 1 + file_len + 1);
memcpy (cp, dirs[files[filenum].dir], dir_len);
- cp[dir_len] = '/';
+ INSERT_DIR_SEPARATOR (cp, dir_len);
memcpy (cp + dir_len + 1, files[filenum].filename, file_len);
cp[dir_len + file_len + 1] = '\0';
listing_source_file (cp);
listing_source_line (line);
}
#endif
+
+ SKIP_WHITESPACE ();
+ if (ISDIGIT (*input_line_pointer))
+ {
+ current.column = get_absolute_expression ();
+ SKIP_WHITESPACE ();
+ }
+
+ while (ISALPHA (*input_line_pointer))
+ {
+ char *p, c;
+ offsetT value;
+
+ p = input_line_pointer;
+ c = get_symbol_end ();
+
+ if (strcmp (p, "basic_block") == 0)
+ {
+ current.flags |= DWARF2_FLAG_BASIC_BLOCK;
+ *input_line_pointer = c;
+ }
+ else if (strcmp (p, "prologue_end") == 0)
+ {
+ current.flags |= DWARF2_FLAG_PROLOGUE_END;
+ *input_line_pointer = c;
+ }
+ else if (strcmp (p, "epilogue_begin") == 0)
+ {
+ current.flags |= DWARF2_FLAG_EPILOGUE_BEGIN;
+ *input_line_pointer = c;
+ }
+ else if (strcmp (p, "is_stmt") == 0)
+ {
+ *input_line_pointer = c;
+ value = get_absolute_expression ();
+ if (value == 0)
+ current.flags &= ~DWARF2_FLAG_IS_STMT;
+ else if (value == 1)
+ current.flags |= DWARF2_FLAG_IS_STMT;
+ else
+ {
+ as_bad (_("is_stmt value not 0 or 1"));
+ return;
+ }
+ }
+ else if (strcmp (p, "isa") == 0)
+ {
+ *input_line_pointer = c;
+ value = get_absolute_expression ();
+ if (value >= 0)
+ current.isa = value;
+ else
+ {
+ as_bad (_("isa number less than zero"));
+ return;
+ }
+ }
+ else
+ {
+ as_bad (_("unknown .loc sub-directive `%s'"), p);
+ *input_line_pointer = c;
+ return;
+ }
+
+ SKIP_WHITESPACE ();
+ }
+
+ demand_empty_rest_of_line ();
+ loc_directive_seen = TRUE;
+}
+
+void
+dwarf2_directive_loc_mark_labels (int dummy ATTRIBUTE_UNUSED)
+{
+ offsetT value = get_absolute_expression ();
+
+ if (value != 0 && value != 1)
+ {
+ as_bad (_("expected 0 or 1"));
+ ignore_rest_of_line ();
+ }
+ else
+ {
+ dwarf2_loc_mark_labels = value != 0;
+ demand_empty_rest_of_line ();
+ }
}
\f
static struct frag *
first_frag_for_seg (segT seg)
{
- frchainS *f, *first = NULL;
-
- for (f = frchain_root; f; f = f->frch_next)
- if (f->frch_seg == seg
- && (! first || first->frch_subseg > f->frch_subseg))
- first = f;
-
- return first ? first->frch_root : NULL;
+ return seg_info (seg)->frchainP->frch_root;
}
static struct frag *
last_frag_for_seg (segT seg)
{
- frchainS *f, *last = NULL;
+ frchainS *f = seg_info (seg)->frchainP;
- for (f = frchain_root; f; f = f->frch_next)
- if (f->frch_seg == seg
- && (! last || last->frch_subseg < f->frch_subseg))
- last= f;
+ while (f->frch_next != NULL)
+ f = f->frch_next;
- return last ? last->frch_last : NULL;
+ return f->frch_last;
}
\f
/* Emit a single byte into the current segment. */
/* Get the size of a fragment. */
static offsetT
-get_frag_fix (fragS *frag)
+get_frag_fix (fragS *frag, segT seg)
{
frchainS *fr;
/* If a fragment is the last in the chain, special measures must be
taken to find its size before relaxation, since it may be pending
on some subsegment chain. */
- for (fr = frchain_root; fr; fr = fr->frch_next)
+ for (fr = seg_info (seg)->frchainP; fr; fr = fr->frch_next)
if (fr->frch_last == frag)
return (char *) obstack_next_free (&fr->frch_obstack) - frag->fr_literal;
/* Set an absolute address (may result in a relocation entry). */
static void
-out_set_addr (segT seg, fragS *frag, addressT ofs)
+out_set_addr (symbolS *sym)
{
expressionS expr;
- symbolS *sym;
-
- sym = symbol_temp_new (seg, ofs, frag);
out_opcode (DW_LNS_extended_op);
out_uleb128 (sizeof_address + 1);
static void scale_addr_delta (addressT *);
static void
-scale_addr_delta (addr_delta)
- addressT *addr_delta;
+scale_addr_delta (addressT *addr_delta)
{
static int printed_this = 0;
if (*addr_delta % DWARF2_LINE_MIN_INSN_LENGTH != 0)
int need_copy = 0;
char *end = p + len;
+ /* Line number sequences cannot go backward in addresses. This means
+ we've incorrectly ordered the statements in the sequence. */
+ assert ((offsetT) addr_delta >= 0);
+
/* Scale the address delta by the minimum instruction length. */
scale_addr_delta (&addr_delta);
*p++ = DW_LNS_advance_line;
p += output_leb128 (p, line_delta, 1);
- /* Prettier, I think, to use DW_LNS_copy instead of a
- "line +0, addr +0" special opcode. */
- if (addr_delta == 0)
- {
- *p++ = DW_LNS_copy;
- goto done;
- }
-
line_delta = 0;
tmp = 0 - DWARF2_LINE_BASE;
need_copy = 1;
}
+ /* Prettier, I think, to use DW_LNS_copy instead of a "line +0, addr +0"
+ special opcode. */
+ if (line_delta == 0 && addr_delta == 0)
+ {
+ *p++ = DW_LNS_copy;
+ goto done;
+ }
+
/* Bias the opcode by the special opcode base. */
tmp += DWARF2_LINE_OPCODE_BASE;
increments between fragments of the target segment. */
static void
-relax_inc_line_addr (int line_delta, segT seg,
- fragS *to_frag, addressT to_ofs,
- fragS *from_frag, addressT from_ofs)
+relax_inc_line_addr (int line_delta, symbolS *to_sym, symbolS *from_sym)
{
- symbolS *to_sym, *from_sym;
expressionS expr;
int max_chars;
- to_sym = symbol_temp_new (seg, to_ofs, to_frag);
- from_sym = symbol_temp_new (seg, from_ofs, from_frag);
-
expr.X_op = O_subtract;
expr.X_add_symbol = to_sym;
expr.X_op_symbol = from_sym;
unsigned filenum = 1;
unsigned line = 1;
unsigned column = 0;
- unsigned flags = DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_BEGIN_STMT : 0;
- fragS *frag = NULL;
- fragS *last_frag;
- addressT frag_ofs = 0;
- addressT last_frag_ofs;
+ unsigned isa = 0;
+ unsigned flags = DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_IS_STMT : 0;
+ fragS *last_frag = NULL, *frag;
+ addressT last_frag_ofs = 0, frag_ofs;
+ symbolS *last_lab = NULL, *lab;
struct line_entry *next;
- while (e)
+ do
{
- int changed = 0;
+ int line_delta;
if (filenum != e->loc.filenum)
{
filenum = e->loc.filenum;
out_opcode (DW_LNS_set_file);
out_uleb128 (filenum);
- changed = 1;
}
if (column != e->loc.column)
column = e->loc.column;
out_opcode (DW_LNS_set_column);
out_uleb128 (column);
- changed = 1;
}
- if ((e->loc.flags ^ flags) & DWARF2_FLAG_BEGIN_STMT)
+ if (isa != e->loc.isa)
{
- flags = e->loc.flags;
- out_opcode (DW_LNS_negate_stmt);
- changed = 1;
+ isa = e->loc.isa;
+ out_opcode (DW_LNS_set_isa);
+ out_uleb128 (isa);
}
- if (e->loc.flags & DWARF2_FLAG_BEGIN_BLOCK)
+ if ((e->loc.flags ^ flags) & DWARF2_FLAG_IS_STMT)
{
- out_opcode (DW_LNS_set_basic_block);
- changed = 1;
+ flags = e->loc.flags;
+ out_opcode (DW_LNS_negate_stmt);
}
+ if (e->loc.flags & DWARF2_FLAG_BASIC_BLOCK)
+ out_opcode (DW_LNS_set_basic_block);
+
+ if (e->loc.flags & DWARF2_FLAG_PROLOGUE_END)
+ out_opcode (DW_LNS_set_prologue_end);
+
+ if (e->loc.flags & DWARF2_FLAG_EPILOGUE_BEGIN)
+ out_opcode (DW_LNS_set_epilogue_begin);
+
/* Don't try to optimize away redundant entries; gdb wants two
entries for a function where the code starts on the same line as
the {, and there's no way to identify that case here. Trust gcc
to optimize appropriately. */
- if (1 /* line != e->loc.line || changed */)
- {
- int line_delta = e->loc.line - line;
- if (frag == NULL)
- {
- out_set_addr (seg, e->frag, e->frag_ofs);
- out_inc_line_addr (line_delta, 0);
- }
- else if (frag == e->frag)
- out_inc_line_addr (line_delta, e->frag_ofs - frag_ofs);
- else
- relax_inc_line_addr (line_delta, seg, e->frag, e->frag_ofs,
- frag, frag_ofs);
+ line_delta = e->loc.line - line;
+ lab = e->label;
+ frag = symbol_get_frag (lab);
+ frag_ofs = S_GET_VALUE (lab);
- frag = e->frag;
- frag_ofs = e->frag_ofs;
- line = e->loc.line;
- }
- else if (frag == NULL)
+ if (last_frag == NULL)
{
- out_set_addr (seg, e->frag, e->frag_ofs);
- frag = e->frag;
- frag_ofs = e->frag_ofs;
+ out_set_addr (lab);
+ out_inc_line_addr (line_delta, 0);
}
+ else if (frag == last_frag)
+ out_inc_line_addr (line_delta, frag_ofs - last_frag_ofs);
+ else
+ relax_inc_line_addr (line_delta, lab, last_lab);
+
+ line = e->loc.line;
+ last_lab = lab;
+ last_frag = frag;
+ last_frag_ofs = frag_ofs;
next = e->next;
free (e);
e = next;
}
+ while (e);
/* Emit a DW_LNE_end_sequence for the end of the section. */
- last_frag = last_frag_for_seg (seg);
- last_frag_ofs = get_frag_fix (last_frag);
+ frag = last_frag_for_seg (seg);
+ frag_ofs = get_frag_fix (frag, seg);
if (frag == last_frag)
- out_inc_line_addr (INT_MAX, last_frag_ofs - frag_ofs);
+ out_inc_line_addr (INT_MAX, frag_ofs - last_frag_ofs);
else
- relax_inc_line_addr (INT_MAX, seg, last_frag, last_frag_ofs,
- frag, frag_ofs);
+ {
+ lab = symbol_temp_new (seg, frag_ofs, frag);
+ relax_inc_line_addr (INT_MAX, lab, last_lab);
+ }
}
/* Emit the directory and file tables for .debug_line. */
out_byte (0); /* DW_LNS_set_basic_block */
out_byte (0); /* DW_LNS_const_add_pc */
out_byte (1); /* DW_LNS_fixed_advance_pc */
+ out_byte (0); /* DW_LNS_set_prologue_end */
+ out_byte (0); /* DW_LNS_set_epilogue_begin */
+ out_byte (1); /* DW_LNS_set_isa */
out_file_list ();
s->text_start = beg;
frag = last_frag_for_seg (s->seg);
- end = symbol_temp_new (s->seg, get_frag_fix (frag), frag);
+ end = symbol_temp_new (s->seg, get_frag_fix (frag, s->seg), frag);
s->text_end = end;
expr.X_op = O_symbol;
len = strlen (dirs[files[1].dir]);
p = frag_more (len + 1);
memcpy (p, dirs[files[1].dir], len);
- p[len] = '/';
+ INSERT_DIR_SEPARATOR (p, len);
}
len = strlen (files[1].filename) + 1;
p = frag_more (len);
symbol_set_value_now (info_end);
}
+/* Finish the dwarf2 debug sections. We emit .debug.line if there
+ were any .file/.loc directives, or --gdwarf2 was given, or if the
+ file has a non-empty .debug_info section. If we emit .debug_line,
+ and the .debug_info section is empty, we also emit .debug_info,
+ .debug_aranges and .debug_abbrev. ALL_SEGS will be non-null if
+ there were any .file/.loc directives, or --gdwarf2 was given and
+ there were any located instructions emitted. */
+
void
dwarf2_finish (void)
{
segT line_seg;
struct line_seg *s;
+ segT info_seg;
+ int emit_other_sections = 0;
+
+ info_seg = bfd_get_section_by_name (stdoutput, ".debug_info");
+ emit_other_sections = info_seg == NULL || !seg_not_empty_p (info_seg);
- /* We don't need to do anything unless:
- - Some debug information was recorded via .file/.loc
- - or, we are generating DWARF2 information ourself (--gdwarf2)
- - or, there is a user-provided .debug_info section which could
- reference the file table in the .debug_line section we generate
- below. */
- if (all_segs == NULL
- && debug_type != DEBUG_DWARF2
- && bfd_get_section_by_name (stdoutput, ".debug_info") == NULL)
+ if (!all_segs && emit_other_sections)
+ /* There is no line information and no non-empty .debug_info
+ section. */
return;
/* Calculate the size of an address for the target machine. */
/* Create and switch to the line number section. */
line_seg = subseg_new (".debug_line", 0);
- bfd_set_section_flags (stdoutput, line_seg, SEC_READONLY);
+ bfd_set_section_flags (stdoutput, line_seg, SEC_READONLY | SEC_DEBUGGING);
/* For each subsection, chain the debug entries together. */
for (s = all_segs; s; s = s->next)
out_debug_line (line_seg);
- /* If this is assembler generated line info, we need .debug_info
- and .debug_abbrev sections as well. */
- if (all_segs != NULL && debug_type == DEBUG_DWARF2)
+ /* If this is assembler generated line info, and there is no
+ debug_info already, we need .debug_info and .debug_abbrev
+ sections as well. */
+ if (emit_other_sections)
{
segT abbrev_seg;
- segT info_seg;
segT aranges_seg;
+ assert (all_segs);
+
info_seg = subseg_new (".debug_info", 0);
abbrev_seg = subseg_new (".debug_abbrev", 0);
aranges_seg = subseg_new (".debug_aranges", 0);
- bfd_set_section_flags (stdoutput, info_seg, SEC_READONLY);
- bfd_set_section_flags (stdoutput, abbrev_seg, SEC_READONLY);
- bfd_set_section_flags (stdoutput, aranges_seg, SEC_READONLY);
+ bfd_set_section_flags (stdoutput, info_seg,
+ SEC_READONLY | SEC_DEBUGGING);
+ bfd_set_section_flags (stdoutput, abbrev_seg,
+ SEC_READONLY | SEC_DEBUGGING);
+ bfd_set_section_flags (stdoutput, aranges_seg,
+ SEC_READONLY | SEC_DEBUGGING);
record_alignment (aranges_seg, ffs (2 * sizeof_address) - 1);
out_debug_info (info_seg, abbrev_seg, line_seg);
}
}
-
-#else
-void
-dwarf2_finish ()
-{
-}
-
-int
-dwarf2dbg_estimate_size_before_relax (frag)
- fragS *frag ATTRIBUTE_UNUSED;
-{
- as_fatal (_("dwarf2 is not supported for this object file format"));
- return 0;
-}
-
-int
-dwarf2dbg_relax_frag (frag)
- fragS *frag ATTRIBUTE_UNUSED;
-{
- as_fatal (_("dwarf2 is not supported for this object file format"));
- return 0;
-}
-
-void
-dwarf2dbg_convert_frag (frag)
- fragS *frag ATTRIBUTE_UNUSED;
-{
- as_fatal (_("dwarf2 is not supported for this object file format"));
-}
-
-void
-dwarf2_emit_insn (size)
- int size ATTRIBUTE_UNUSED;
-{
-}
-
-char *
-dwarf2_directive_file (dummy)
- int dummy ATTRIBUTE_UNUSED;
-{
- s_app_file (0);
- return NULL;
-}
-
-void
-dwarf2_directive_loc (dummy)
- int dummy ATTRIBUTE_UNUSED;
-{
- as_fatal (_("dwarf2 is not supported for this object file format"));
-}
-#endif /* BFD_ASSEMBLER */