/* dwarf2dbg.c - DWARF2 debug support
- Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ 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:
#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
{
--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;
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);