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* [Bug libstdc++/18185] New: Unhandled exceptions leak
@ 2004-10-27 18:02 velco at fadata dot bg
2004-10-27 20:29 ` [Bug libstdc++/18185] " velco at fadata dot bg
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: velco at fadata dot bg @ 2004-10-27 18:02 UTC (permalink / raw)
To: gcc-bugs
When a thread is terminated from within an exception handling block, exception
object(s) (__cxa_exeption) are leaked, as the TSD destructor for __cxa_eh_globals
instance does delete them. The following program demonstrates the leak. A patch
and a ChangeLog entry follows.
#include <pthread.h>
static void *
foo (void *p)
{
try
{
throw 0;
}
catch (int)
{
pthread_exit (0);
}
}
int
main ()
{
pthread_t t;
void *p;
pthread_create (&t, 0, foo, 0);
pthread_join (t, &p);
return 0;
}
--- /home/velco/src/gcc-4.0/libstdc++-v3/libsupc++/eh_globals.cc.~1.6.~ Tue Aug
3 09:45:54 2004
+++ /home/velco/src/gcc-4.0/libstdc++-v3/libsupc++/eh_globals.cc Wed Oct 27
20:50:17 2004
@@ -48,7 +48,19 @@
get_globals_dtor (void *ptr)
{
if (ptr)
- std::free (ptr);
+ {
+ __cxa_exception *exn, *next;
+
+ exn = ((__cxa_eh_globals *) ptr)->caughtExceptions;
+ while (exn)
+ {
+ next = exn->nextException;
+ _Unwind_DeleteException (&exn->unwindHeader);
+ exn = next;
+ }
+
+ std::free (ptr);
+ }
}
static void
2004-10-27 Momchil Velikov <velco@fadata.bg>
* libsupc++/eh_globals.cc (get_globals_dtor): Delete unhandled
exceptions.
--
Summary: Unhandled exceptions leak
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: velco at fadata dot bg
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18185
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/18185] Unhandled exceptions leak
2004-10-27 18:02 [Bug libstdc++/18185] New: Unhandled exceptions leak velco at fadata dot bg
@ 2004-10-27 20:29 ` velco at fadata dot bg
2004-10-28 4:13 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: velco at fadata dot bg @ 2004-10-27 20:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From velco at fadata dot bg 2004-10-27 20:29 -------
(In reply to comment #0)
> are leaked, as the TSD destructor for __cxa_eh_globals
> instance does delete them.
I mean, of course, DOES NOT delete them.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18185
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/18185] Unhandled exceptions leak
2004-10-27 18:02 [Bug libstdc++/18185] New: Unhandled exceptions leak velco at fadata dot bg
2004-10-27 20:29 ` [Bug libstdc++/18185] " velco at fadata dot bg
@ 2004-10-28 4:13 ` pinskia at gcc dot gnu dot org
2004-11-01 22:31 ` bkoz at gcc dot gnu dot org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-28 4:13 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-28 04:13 -------
Confirmed. Patch posted here: <http://gcc.gnu.org/ml/gcc-patches/2004-10/msg02389.html>.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |patch
Last reconfirmed|0000-00-00 00:00:00 |2004-10-28 04:13:08
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18185
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/18185] Unhandled exceptions leak
2004-10-27 18:02 [Bug libstdc++/18185] New: Unhandled exceptions leak velco at fadata dot bg
2004-10-27 20:29 ` [Bug libstdc++/18185] " velco at fadata dot bg
2004-10-28 4:13 ` pinskia at gcc dot gnu dot org
@ 2004-11-01 22:31 ` bkoz at gcc dot gnu dot org
2004-11-01 22:47 ` cvs-commit at gcc dot gnu dot org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2004-11-01 22:31 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bkoz at gcc dot gnu dot org 2004-11-01 22:31 -------
Confirmed on gcc-3_4-branch as well.
In on mainline, will fix for 3.4.4
-benjamin
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |bkoz at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Known to fail| |3.4.3
Target Milestone|--- |3.4.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18185
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/18185] Unhandled exceptions leak
2004-10-27 18:02 [Bug libstdc++/18185] New: Unhandled exceptions leak velco at fadata dot bg
` (2 preceding siblings ...)
2004-11-01 22:31 ` bkoz at gcc dot gnu dot org
@ 2004-11-01 22:47 ` cvs-commit at gcc dot gnu dot org
2004-11-08 17:41 ` [Bug libstdc++/18185] [3.4 only] " cvs-commit at gcc dot gnu dot org
2004-11-08 18:05 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-11-01 22:47 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-11-01 22:47 -------
Subject: Bug 18185
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: bkoz@gcc.gnu.org 2004-11-01 22:47:34
Modified files:
libstdc++-v3 : ChangeLog
libstdc++-v3/libsupc++: eh_globals.cc
Added files:
libstdc++-v3/testsuite/thread: 18185.cc
Log message:
2004-11-01 Momchil Velikov <velco@fadata.bg>
PR libstdc++/18185
* libsupc++/eh_globals.cc (get_globals_dtor): Delete unhandled
exceptions.
* testsuite/thread/18185.cc: New.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/ChangeLog.diff?cvsroot=gcc&r1=1.2742&r2=1.2743
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/libsupc++/eh_globals.cc.diff?cvsroot=gcc&r1=1.6&r2=1.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/testsuite/thread/18185.cc.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18185
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/18185] [3.4 only] Unhandled exceptions leak
2004-10-27 18:02 [Bug libstdc++/18185] New: Unhandled exceptions leak velco at fadata dot bg
` (3 preceding siblings ...)
2004-11-01 22:47 ` cvs-commit at gcc dot gnu dot org
@ 2004-11-08 17:41 ` cvs-commit at gcc dot gnu dot org
2004-11-08 18:05 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-11-08 17:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-11-08 17:41 -------
Subject: Bug 18185
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-3_4-branch
Changes by: bkoz@gcc.gnu.org 2004-11-08 17:41:20
Modified files:
libstdc++-v3 : ChangeLog
libstdc++-v3/libsupc++: eh_globals.cc
Added files:
libstdc++-v3/testsuite/thread: 18185.cc
Log message:
2004-11-08 Momchil Velikov <velco@fadata.bg>
PR libstdc++/18185
* libsupc++/eh_globals.cc (get_globals_dtor): Delete unhandled
exceptions.
* testsuite/thread/18185.cc: New.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.2224.2.195&r2=1.2224.2.196
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/libsupc++/eh_globals.cc.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.4.16.1&r2=1.4.16.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/testsuite/thread/18185.cc.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.4.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18185
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/18185] [3.4 only] Unhandled exceptions leak
2004-10-27 18:02 [Bug libstdc++/18185] New: Unhandled exceptions leak velco at fadata dot bg
` (4 preceding siblings ...)
2004-11-08 17:41 ` [Bug libstdc++/18185] [3.4 only] " cvs-commit at gcc dot gnu dot org
@ 2004-11-08 18:05 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-11-08 18:05 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-11-08 18:04 -------
Fixed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18185
^ permalink raw reply [flat|nested] 7+ messages in thread
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2004-10-27 18:02 [Bug libstdc++/18185] New: Unhandled exceptions leak velco at fadata dot bg
2004-10-27 20:29 ` [Bug libstdc++/18185] " velco at fadata dot bg
2004-10-28 4:13 ` pinskia at gcc dot gnu dot org
2004-11-01 22:31 ` bkoz at gcc dot gnu dot org
2004-11-01 22:47 ` cvs-commit at gcc dot gnu dot org
2004-11-08 17:41 ` [Bug libstdc++/18185] [3.4 only] " cvs-commit at gcc dot gnu dot org
2004-11-08 18:05 ` pinskia at gcc dot gnu dot org
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