* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
@ 2010-05-10 13:41 ` ivan dot stankovic at avl dot com
2010-05-10 13:54 ` rguenth at gcc dot gnu dot org
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From: ivan dot stankovic at avl dot com @ 2010-05-10 13:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from ivan dot stankovic at avl dot com 2010-05-10 13:40 -------
Created an attachment (id=20619)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20619&action=view)
The test case
Just unpack and run 'make; make run'. The output
should be something like:
x initialized at @0x40021a28
x initialized at @0x40021a28
(note that the addresses are identical).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
2010-05-10 13:41 ` [Bug c++/44059] " ivan dot stankovic at avl dot com
@ 2010-05-10 13:54 ` rguenth at gcc dot gnu dot org
2010-05-10 13:58 ` rguenth at gcc dot gnu dot org
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From: rguenth at gcc dot gnu dot org @ 2010-05-10 13:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2010-05-10 13:54 -------
It works for me. You need to build shared libraries with -fPIC.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
2010-05-10 13:41 ` [Bug c++/44059] " ivan dot stankovic at avl dot com
2010-05-10 13:54 ` rguenth at gcc dot gnu dot org
@ 2010-05-10 13:58 ` rguenth at gcc dot gnu dot org
2010-05-10 14:09 ` jakub at gcc dot gnu dot org
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From: rguenth at gcc dot gnu dot org @ 2010-05-10 13:58 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2010-05-10 13:57 -------
Or rather as you use dlopen you need to use RTLD_GLOBAL.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (2 preceding siblings ...)
2010-05-10 13:58 ` rguenth at gcc dot gnu dot org
@ 2010-05-10 14:09 ` jakub at gcc dot gnu dot org
2010-05-10 14:14 ` ivan dot stankovic at avl dot com
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From: jakub at gcc dot gnu dot org @ 2010-05-10 14:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from jakub at gcc dot gnu dot org 2010-05-10 14:09 -------
Re: #c2, that's just because you are using too old binutils I guess.
The bug seems to be in:
.type _ZGVZN1AC1EvE1x, @object
.type _ZZN1AC1EvE1x, @gnu_unique_object
I believe the guard needs to be @gnu_unique_object as well.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu dot org
Last reconfirmed|0000-00-00 00:00:00 |2010-05-10 14:09:22
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (3 preceding siblings ...)
2010-05-10 14:09 ` jakub at gcc dot gnu dot org
@ 2010-05-10 14:14 ` ivan dot stankovic at avl dot com
2010-05-10 14:39 ` jakub at gcc dot gnu dot org
` (6 subsequent siblings)
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From: ivan dot stankovic at avl dot com @ 2010-05-10 14:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from ivan dot stankovic at avl dot com 2010-05-10 14:14 -------
Indeed, using RTLD_GLOBAL works around the problem. However, I don't think
one should just resort to using this flag with dlopen everywhere. The problem
was originally found with Python modules written in C, and while one can
change the dlopen flags used for Python imports, I'm not sure that that won't
break something else.
As Jakub has pointed out, the guard needs to be unique as well.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (4 preceding siblings ...)
2010-05-10 14:14 ` ivan dot stankovic at avl dot com
@ 2010-05-10 14:39 ` jakub at gcc dot gnu dot org
2010-05-10 14:39 ` jakub at gcc dot gnu dot org
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From: jakub at gcc dot gnu dot org @ 2010-05-10 14:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from jakub at gcc dot gnu dot org 2010-05-10 14:39 -------
I guess the problem is in the !DECL_ARTIFICIAL (DECL) test in
ASM_DECLARE_OBJECT_NAME macro - the guard is artificial.
Not sure why that has been added.
/* For template static data member instantiations or \
inline fn local statics, use gnu_unique_object so that \
they will be combined even under RTLD_LOCAL. */ \
if (USE_GNU_UNIQUE_OBJECT \
&& !DECL_ARTIFICIAL (DECL) && DECL_ONE_ONLY (DECL)) \
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "gnu_unique_object"); \
else \
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (5 preceding siblings ...)
2010-05-10 14:39 ` jakub at gcc dot gnu dot org
@ 2010-05-10 14:39 ` jakub at gcc dot gnu dot org
2010-05-11 18:15 ` jakub at gcc dot gnu dot org
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From: jakub at gcc dot gnu dot org @ 2010-05-10 14:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from jakub at gcc dot gnu dot org 2010-05-10 14:39 -------
Reopening.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|INVALID |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (6 preceding siblings ...)
2010-05-10 14:39 ` jakub at gcc dot gnu dot org
@ 2010-05-11 18:15 ` jakub at gcc dot gnu dot org
2010-05-11 18:28 ` jakub at gcc dot gnu dot org
` (3 subsequent siblings)
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From: jakub at gcc dot gnu dot org @ 2010-05-11 18:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from jakub at gcc dot gnu dot org 2010-05-11 18:14 -------
Subject: Bug 44059
Author: jakub
Date: Tue May 11 18:14:19 2010
New Revision: 159287
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159287
Log:
PR c++/44059
* config/elfos.h (ASM_DECLARE_OBJECT_NAME): Use qnu_unique_object
even for DECL_ONE_ONLY DECL_ARTIFICIAL !TREE_READONLY decls.
* config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Likewise.
* dwarf2asm.c (dw2_output_indirect_constant_1): Set TREE_READONLY
on DW.ref.* decls.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/alpha/elf.h
trunk/gcc/config/elfos.h
trunk/gcc/dwarf2asm.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (7 preceding siblings ...)
2010-05-11 18:15 ` jakub at gcc dot gnu dot org
@ 2010-05-11 18:28 ` jakub at gcc dot gnu dot org
2010-06-30 15:17 ` jakub at gcc dot gnu dot org
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From: jakub at gcc dot gnu dot org @ 2010-05-11 18:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from jakub at gcc dot gnu dot org 2010-05-11 18:28 -------
Fixed on the trunk so far, will backport to 4.5 after a while if there aren't
any issues with it on the trunk.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|2010-05-10 14:09:22 |2010-05-11 18:28:30
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (8 preceding siblings ...)
2010-05-11 18:28 ` jakub at gcc dot gnu dot org
@ 2010-06-30 15:17 ` jakub at gcc dot gnu dot org
2010-07-08 17:08 ` jakub at gcc dot gnu dot org
2010-07-24 18:40 ` [Bug c++/44059] [4.5 Regression] " pinskia at gcc dot gnu dot org
11 siblings, 0 replies; 13+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-06-30 15:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from jakub at gcc dot gnu dot org 2010-06-30 15:17 -------
Subject: Bug 44059
Author: jakub
Date: Wed Jun 30 15:16:54 2010
New Revision: 161607
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161607
Log:
Backport from mainline
2010-05-11 Jakub Jelinek <jakub@redhat.com>
PR c++/44059
* config/elfos.h (ASM_DECLARE_OBJECT_NAME): Use qnu_unique_object
even for DECL_ONE_ONLY DECL_ARTIFICIAL !TREE_READONLY decls.
* config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Likewise.
* dwarf2asm.c (dw2_output_indirect_constant_1): Set TREE_READONLY
on DW.ref.* decls.
Modified:
branches/gcc-4_5-branch/gcc/ChangeLog
branches/gcc-4_5-branch/gcc/config/alpha/elf.h
branches/gcc-4_5-branch/gcc/config/elfos.h
branches/gcc-4_5-branch/gcc/dwarf2asm.c
branches/gcc-4_5-branch/gcc/testsuite/g++.dg/warn/Wconversion-null-2.C
(props changed)
Propchange:
branches/gcc-4_5-branch/gcc/testsuite/g++.dg/warn/Wconversion-null-2.C
('svn:mergeinfo' removed)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (9 preceding siblings ...)
2010-06-30 15:17 ` jakub at gcc dot gnu dot org
@ 2010-07-08 17:08 ` jakub at gcc dot gnu dot org
2010-07-24 18:40 ` [Bug c++/44059] [4.5 Regression] " pinskia at gcc dot gnu dot org
11 siblings, 0 replies; 13+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-07-08 17:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from jakub at gcc dot gnu dot org 2010-07-08 17:08 -------
Fixed.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.5.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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* [Bug c++/44059] [4.5 Regression] Static initializers executed more than once when using unique global symbols
2010-05-10 13:38 [Bug c++/44059] New: Static initializers executed more than once when using unique global symbols ivan dot stankovic at avl dot com
` (10 preceding siblings ...)
2010-07-08 17:08 ` jakub at gcc dot gnu dot org
@ 2010-07-24 18:40 ` pinskia at gcc dot gnu dot org
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2010-07-24 18:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from pinskia at gcc dot gnu dot org 2010-07-24 18:39 -------
*** Bug 44815 has been marked as a duplicate of this bug. ***
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ubizjak at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44059
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