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* Re: c/6343: attribute((weak)) not working on second declaration
@ 2002-04-23 13:36 jason
0 siblings, 0 replies; 6+ messages in thread
From: jason @ 2002-04-23 13:36 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, harinath, jason, sirl
Synopsis: attribute((weak)) not working on second declaration
Responsible-Changed-From-To: jason->sirl
Responsible-Changed-By: jason
Responsible-Changed-When: Tue Apr 23 13:36:33 2002
Responsible-Changed-Why:
Franz is working on this.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6343
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: c/6343: attribute((weak)) not working on second declaration
@ 2002-05-01 11:05 sirl
0 siblings, 0 replies; 6+ messages in thread
From: sirl @ 2002-05-01 11:05 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, harinath, sirl
Synopsis: attribute((weak)) not working on second declaration
State-Changed-From-To: analyzed->closed
State-Changed-By: sirl
State-Changed-When: Wed May 1 11:05:49 2002
State-Changed-Why:
Fixed.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6343
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: c/6343: attribute((weak)) not working on second declaration
@ 2002-04-23 7:36 Raja R Harinath
0 siblings, 0 replies; 6+ messages in thread
From: Raja R Harinath @ 2002-04-23 7:36 UTC (permalink / raw)
To: jason; +Cc: gcc-prs
The following reply was made to PR c/6343; it has been noted by GNATS.
From: Raja R Harinath <harinath@cs.umn.edu>
To: jason@gcc.gnu.org
Cc: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org,
gcc-gnats@gcc.gnu.org, jason@gcc.gnu.org
Subject: Re: c/6343: attribute((weak)) not working on second declaration
Date: Tue, 23 Apr 2002 09:26:17 -0500
Hi,
jason@gcc.gnu.org writes:
> Synopsis: attribute((weak)) not working on second declaration
>
> Responsible-Changed-From-To: unassigned->jason
> Responsible-Changed-By: jason
> Responsible-Changed-When: Tue Apr 23 06:14:23 2002
> Responsible-Changed-Why:
> got it
>
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6343
There was some discussion about a related posting I made to
gcc@gcc.gnu.org.
http://gcc.gnu.org/ml/gcc/2002-04/msg00838.html
Especially,
http://gcc.gnu.org/ml/gcc/2002-04/msg00899.html
- Hari
--
Raja R Harinath ------------------------------ harinath@cs.umn.edu
"When all else fails, read the instructions." -- Cahn's Axiom
"Our policy is, when in doubt, do the right thing." -- Roy L Ash
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: c/6343: attribute((weak)) not working on second declaration
@ 2002-04-23 6:14 jason
0 siblings, 0 replies; 6+ messages in thread
From: jason @ 2002-04-23 6:14 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, harinath, jason, nobody
Synopsis: attribute((weak)) not working on second declaration
Responsible-Changed-From-To: unassigned->jason
Responsible-Changed-By: jason
Responsible-Changed-When: Tue Apr 23 06:14:23 2002
Responsible-Changed-Why:
got it
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6343
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: c/6343: attribute((weak)) not working on second declaration
@ 2002-04-23 1:52 mmitchel
0 siblings, 0 replies; 6+ messages in thread
From: mmitchel @ 2002-04-23 1:52 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, harinath, nobody
Synopsis: attribute((weak)) not working on second declaration
State-Changed-From-To: open->analyzed
State-Changed-By: mmitchel
State-Changed-When: Tue Apr 23 01:52:12 2002
State-Changed-Why:
Confirmed as regression from GCC 3.0.4.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6343
^ permalink raw reply [flat|nested] 6+ messages in thread
* c/6343: attribute((weak)) not working on second declaration
@ 2002-04-17 18:06 harinath
0 siblings, 0 replies; 6+ messages in thread
From: harinath @ 2002-04-17 18:06 UTC (permalink / raw)
To: gcc-gnats
>Number: 6343
>Category: c
>Synopsis: attribute((weak)) not working on second declaration
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed Apr 17 18:06:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: harinath@cs.umn.edu
>Release: gcc version 3.2 20020416 (experimental)
>Organization:
>Environment:
i686-pc-linux-gnu
>Description:
gcc/crtstuff.c depends on being able to do
int foo(void);
int foo(void) attribute((weak));
and have the symbol 'foo' being marked weak.
This doesn't seem to be working.
Here are two compiles of the attached file, and the output of nm.
$ gcc -shared -o foo.so foo.c
$ nm --dynamic foo.so
00001838 A _DYNAMIC
00001914 A _GLOBAL_OFFSET_TABLE_
w _Jv_RegisterClasses
00001944 A __bss_start
w __cxa_finalize
U __deregister_frame_info_bases
w __gmon_start__
U __register_frame_info_bases
00001944 A _edata
00001960 A _end
00000810 T _fini
000005cc T _init
00000790 T bar
w foo
$ gcc -DNONWEAK -shared -o foo.so foo.c
$ nm --dynamic foo.so
00001838 A _DYNAMIC
00001914 A _GLOBAL_OFFSET_TABLE_
w _Jv_RegisterClasses
00001944 A __bss_start
w __cxa_finalize
U __deregister_frame_info_bases
w __gmon_start__
U __register_frame_info_bases
00001944 A _edata
00001960 A _end
00000810 T _fini
000005cc T _init
00000790 T bar
U foo
Notice 'foo' is not marked weak in the second case. This is exactly the way this attribute is used in gcc/crtstuff.c (which is also reflected above, see the non-weak references to __register_frame_info_bases, and the weak reference to __cxa_finalize).
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/x-csrc; name="foo.c"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="foo.c"
I2lmIGRlZmluZWQgTk9OV0VBSwppbnQgZm9vKHZvaWQpOwojZW5kaWYKaW50IGZvbyh2b2lkKSBf
X2F0dHJpYnV0ZV9fKChfX3dlYWtfXykpOwoKaW50IGJhcih2b2lkKQp7CiAgaWYgKGZvbykgcmV0
dXJuIGZvbygpOwogIHJldHVybiAtMTsKfQoK
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2002-05-01 18:05 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2002-04-23 13:36 c/6343: attribute((weak)) not working on second declaration jason
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2002-05-01 11:05 sirl
2002-04-23 7:36 Raja R Harinath
2002-04-23 6:14 jason
2002-04-23 1:52 mmitchel
2002-04-17 18:06 harinath
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