http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48176
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-18
09:00:59 UTC ---
I believe Eric's change was wrong actually, .debug_aranges section has useful
content even when !arange_table_in_use. In particular, it describes .text and
.text.unlikely sections.
So IMHO we want:
--- gcc/dwarf2out.c2011-03-17 12:54:51.000000000 +0100
+++ gcc/dwarf2out.c2011-03-18 09:58:06.010366417 +0100
@@ -23664,7 +23664,7 @@ dwarf2out_finish (const char *filename)
/* Output the address range information. We only put functions in the
arange
table, so don't write it out if we don't have any. */
- if (arange_table_in_use)
+ if (arange_table_in_use || text_section_used || cold_text_section_used)
{
switch_to_section (debug_aranges_section);
output_aranges ();
I assume .debug_aranges isn't useful when no code has been emitted and after
all, we haven't been emitting it before either. I'm unsure when exactly
would be fde_table_in_use different from
arange_table_in_use || text_section_used || cold_text_section_used
though.
