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dwarf2out.c (have_macinfo): Define. 

* dwarf2out.c (have_macinfo): Define.
	(dwarf2out_finish): Don't emit DW_AT_GNU_macros or DW_AT_macro_info
	attribute, don't force empty compilation unit and don't emit any
	.debug_macinfo/.debug_macro section if macinfo_table is empty.

From-SVN: r187474
This commit is contained in:
Jakub Jelinek 2012-05-14 19:06:49 +02:00 committed by Jakub Jelinek
parent fa6eb503fd
commit bdd61db72b
2 changed files with 18 additions and 6 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2012-05-14 Jakub Jelinek <jakub@redhat.com>
* dwarf2out.c (have_macinfo): Define.
(dwarf2out_finish): Don't emit DW_AT_GNU_macros or DW_AT_macro_info
attribute, don't force empty compilation unit and don't emit any
.debug_macinfo/.debug_macro section if macinfo_table is empty.
2012-05-13 Uros Bizjak <ubizjak@gmail.com>
Backport from mainline

17
gcc/dwarf2out.c
View File

@ -3134,6 +3134,12 @@ static GTY (()) VEC (pubname_entry, gc) * pubtype_table;
defines/undefines (and file start/end markers). */
static GTY (()) VEC (macinfo_entry, gc) * macinfo_table;
/* True if .debug_macinfo or .debug_macros section is going to be
emitted. */
#define have_macinfo \
(debug_info_level >= DINFO_LEVEL_VERBOSE \
&& !VEC_empty (macinfo_entry, macinfo_table))
/* Array of dies for which we should generate .debug_ranges info. */
static GTY ((length ("ranges_table_allocated"))) dw_ranges_ref ranges_table;
@ -22691,7 +22697,7 @@ dwarf2out_finish (const char *filename)
add_AT_lineptr (comp_unit_die (), DW_AT_stmt_list,
debug_line_section_label);
if (debug_info_level >= DINFO_LEVEL_VERBOSE)
if (have_macinfo)
add_AT_macptr (comp_unit_die (),
dwarf_strict ? DW_AT_macro_info : DW_AT_GNU_macros,
macinfo_section_label);
@ -22726,8 +22732,8 @@ dwarf2out_finish (const char *filename)
htab_delete (comdat_type_table);
/* Output the main compilation unit if non-empty or if .debug_macinfo
will be emitted. */
output_comp_unit (comp_unit_die (), debug_info_level >= DINFO_LEVEL_VERBOSE);
or .debug_macro will be emitted. */
output_comp_unit (comp_unit_die (), have_macinfo);
/* Output the abbreviation table. */
if (abbrev_die_table_in_use != 1)
@ -22807,12 +22813,11 @@ dwarf2out_finish (const char *filename)
}
/* Have to end the macro section. */
if (debug_info_level >= DINFO_LEVEL_VERBOSE)
if (have_macinfo)
{
switch_to_section (debug_macinfo_section);
ASM_OUTPUT_LABEL (asm_out_file, macinfo_section_label);
if (!VEC_empty (macinfo_entry, macinfo_table))
output_macinfo ();
output_macinfo ();
dw2_asm_output_data (1, 0, "End compilation unit");
}