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* dwarf2read.c (inherit_abstract_dies): Handle origin die's

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compilation unit being different from target die's.
This commit is contained in:
Pedro Alves 2010-08-25 18:20:07 +00:00
parent 8dd881b6e3
commit cd02d79dc8
2 changed files with 25 additions and 7 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2010-08-25 Pedro Alves <pedro@codesourcery.com>
* dwarf2read.c (inherit_abstract_dies): Handle origin die's
compilation unit being different from target die's.
2010-08-24 Doug Evans <dje@google.com>
PR symtab/11942

27
gdb/dwarf2read.c
View File

@ -5266,12 +5266,24 @@ inherit_abstract_dies (struct die_info *die, struct dwarf2_cu *cu)
struct die_info *origin_child_die;
struct cleanup *cleanups;
struct attribute *attr;
struct dwarf2_cu *origin_cu;
struct pending **origin_previous_list_in_scope;
attr = dwarf2_attr (die, DW_AT_abstract_origin, cu);
if (!attr)
return;
origin_die = follow_die_ref (die, attr, &cu);
/* Note that following die references may follow to a die in a
different cu. */
origin_cu = cu;
origin_die = follow_die_ref (die, attr, &origin_cu);
/* We're inheriting ORIGIN's children into the scope we'd put DIE's
symbols in. */
origin_previous_list_in_scope = origin_cu->list_in_scope;
origin_cu->list_in_scope = cu->list_in_scope;
if (die->tag != origin_die->tag
&& !(die->tag == DW_TAG_inlined_subroutine
&& origin_die->tag == DW_TAG_subprogram))
@ -5299,16 +5311,16 @@ inherit_abstract_dies (struct die_info *die, struct dwarf2_cu *cu)
but GCC versions at least through 4.4 generate this (GCC PR
40573). */
struct die_info *child_origin_die = child_die;
struct dwarf2_cu *child_origin_cu = cu;
while (1)
{
attr = dwarf2_attr (child_origin_die, DW_AT_abstract_origin, cu);
attr = dwarf2_attr (child_origin_die, DW_AT_abstract_origin,
child_origin_cu);
if (attr == NULL)
break;
/* FIXME: cu becomes CU of child_origin_die.
What about the next iteration of the outer loop?
cu might then be bogus (won't be CU for child_die). */
child_origin_die = follow_die_ref (child_origin_die, attr, &cu);
child_origin_die = follow_die_ref (child_origin_die, attr,
&child_origin_cu);
}
/* According to DWARF3 3.3.8.2 #3 new entries without their abstract
@ -5350,10 +5362,11 @@ inherit_abstract_dies (struct die_info *die, struct dwarf2_cu *cu)
if (offsetp >= offsets_end || *offsetp > origin_child_die->offset)
{
/* Found that ORIGIN_CHILD_DIE is really not referenced. */
process_die (origin_child_die, cu);
process_die (origin_child_die, origin_cu);
}
origin_child_die = sibling_die (origin_child_die);
}
origin_cu->list_in_scope = origin_previous_list_in_scope;
do_cleanups (cleanups);
}