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* [Bug debug/66535] New: segfault in gen_subprogram_die after debug-early merge
@ 2015-06-14 14:43 ebotcazou at gcc dot gnu.org
2015-06-15 16:24 ` [Bug debug/66535] " aldyh at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2015-06-14 14:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66535
Bug ID: 66535
Summary: segfault in gen_subprogram_die after debug-early merge
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: ebotcazou at gcc dot gnu.org
CC: aldyh at gcc dot gnu.org
Target Milestone: ---
Created attachment 35776
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35776&action=edit
Testcase to be gnatchop'ed
The debug-early merge has introduced a crash on the attached Ada testcase:
eric@polaris:~/build/gcc/native> gcc/xgcc -Bgcc -S debug4.adb -g
raised STORAGE_ERROR : stack overflow or erroneous memory access
Program received signal SIGSEGV, Segmentation fault.
0x0000000000b3685c in gen_subprogram_die (decl=0x7ffff53928c0, context_die=0x0)
at /home/eric/gnat/gnat-head/src/gcc/dwarf2out.c:18793
18793 || old_die->die_parent->die_tag == DW_TAG_module
old_die->die_parent is NULL.
The testcase can be added as-is to the gnat.dg/ testsuite:
gnat.dg/debug4.adb
gnat.dg/debug4_pkg.adb
gnat.dg/debug4_pkg.ads
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/66535] segfault in gen_subprogram_die after debug-early merge
2015-06-14 14:43 [Bug debug/66535] New: segfault in gen_subprogram_die after debug-early merge ebotcazou at gcc dot gnu.org
@ 2015-06-15 16:24 ` aldyh at gcc dot gnu.org
2015-06-15 16:35 ` aldyh at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: aldyh at gcc dot gnu.org @ 2015-06-15 16:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66535
Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-06-15
Assignee|unassigned at gcc dot gnu.org |aldyh at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Mine.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/66535] segfault in gen_subprogram_die after debug-early merge
2015-06-14 14:43 [Bug debug/66535] New: segfault in gen_subprogram_die after debug-early merge ebotcazou at gcc dot gnu.org
2015-06-15 16:24 ` [Bug debug/66535] " aldyh at gcc dot gnu.org
@ 2015-06-15 16:35 ` aldyh at gcc dot gnu.org
2015-06-15 16:36 ` aldyh at gcc dot gnu.org
2015-06-15 17:33 ` ebotcazou at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: aldyh at gcc dot gnu.org @ 2015-06-15 16:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66535
--- Comment #2 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Author: aldyh
Date: Mon Jun 15 16:34:53 2015
New Revision: 224486
URL: https://gcc.gnu.org/viewcvs?rev=224486&root=gcc&view=rev
Log:
PR debug/66535
* dwarf2out.c (gen_subprogram_die): Do not check a parent's tag if
there is no parent.
Added:
trunk/gcc/testsuite/gnat.dg/debug4.adb
trunk/gcc/testsuite/gnat.dg/debug4_pkg.adb
trunk/gcc/testsuite/gnat.dg/debug4_pkg.ads
Modified:
trunk/gcc/ChangeLog
trunk/gcc/dwarf2out.c
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/66535] segfault in gen_subprogram_die after debug-early merge
2015-06-14 14:43 [Bug debug/66535] New: segfault in gen_subprogram_die after debug-early merge ebotcazou at gcc dot gnu.org
2015-06-15 16:24 ` [Bug debug/66535] " aldyh at gcc dot gnu.org
2015-06-15 16:35 ` aldyh at gcc dot gnu.org
@ 2015-06-15 16:36 ` aldyh at gcc dot gnu.org
2015-06-15 17:33 ` ebotcazou at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: aldyh at gcc dot gnu.org @ 2015-06-15 16:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66535
Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Fixed in mainline.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/66535] segfault in gen_subprogram_die after debug-early merge
2015-06-14 14:43 [Bug debug/66535] New: segfault in gen_subprogram_die after debug-early merge ebotcazou at gcc dot gnu.org
` (2 preceding siblings ...)
2015-06-15 16:36 ` aldyh at gcc dot gnu.org
@ 2015-06-15 17:33 ` ebotcazou at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2015-06-15 17:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66535
--- Comment #4 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Thanks for the quick fix!
^ permalink raw reply [flat|nested] 5+ messages in thread
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2015-06-14 14:43 [Bug debug/66535] New: segfault in gen_subprogram_die after debug-early merge ebotcazou at gcc dot gnu.org
2015-06-15 16:24 ` [Bug debug/66535] " aldyh at gcc dot gnu.org
2015-06-15 16:35 ` aldyh at gcc dot gnu.org
2015-06-15 16:36 ` aldyh at gcc dot gnu.org
2015-06-15 17:33 ` ebotcazou at gcc dot gnu.org
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