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* [Bug nptl/400] New: "return V;" and "pthread_exit(V) ;" don't behave the same way.
@ 2004-09-23 8:20 sebastien dot decugis at ext dot bull dot net
2004-09-23 8:22 ` [Bug nptl/400] " sebastien dot decugis at ext dot bull dot net
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: sebastien dot decugis at ext dot bull dot net @ 2004-09-23 8:20 UTC (permalink / raw)
To: glibc-bugs
As POSIX standard requires "return V;" in a thread make an implicit call to
"pthread_exit(V);" -- see pthread_exit() reference --, the behavior is
different. For example, pthread_exit() will call the cancelation cleanup
handlers which are pending (this is required by POSIX) whereas return won't.
--
Summary: "return V;" and "pthread_exit(V) ;" don't behave the
same way.
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: nptl
AssignedTo: drepper at redhat dot com
ReportedBy: sebastien dot decugis at ext dot bull dot net
CC: glibc-bugs at sources dot redhat dot com
http://sources.redhat.com/bugzilla/show_bug.cgi?id=400
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* [Bug nptl/400] "return V;" and "pthread_exit(V) ;" don't behave the same way.
2004-09-23 8:20 [Bug nptl/400] New: "return V;" and "pthread_exit(V) ;" don't behave the same way sebastien dot decugis at ext dot bull dot net
@ 2004-09-23 8:22 ` sebastien dot decugis at ext dot bull dot net
2004-09-23 8:32 ` jakub at redhat dot com
2004-09-23 8:38 ` sebastien dot decugis at ext dot bull dot net
2 siblings, 0 replies; 4+ messages in thread
From: sebastien dot decugis at ext dot bull dot net @ 2004-09-23 8:22 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From sebastien dot decugis at ext dot bull dot net 2004-09-23 08:22 -------
Created an attachment (id=198)
--> (http://sources.redhat.com/bugzilla/attachment.cgi?id=198&action=view)
This file shows shortly the problem
The file is quite self-explanatory.
--
http://sources.redhat.com/bugzilla/show_bug.cgi?id=400
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* [Bug nptl/400] "return V;" and "pthread_exit(V) ;" don't behave the same way.
2004-09-23 8:20 [Bug nptl/400] New: "return V;" and "pthread_exit(V) ;" don't behave the same way sebastien dot decugis at ext dot bull dot net
2004-09-23 8:22 ` [Bug nptl/400] " sebastien dot decugis at ext dot bull dot net
@ 2004-09-23 8:32 ` jakub at redhat dot com
2004-09-23 8:38 ` sebastien dot decugis at ext dot bull dot net
2 siblings, 0 replies; 4+ messages in thread
From: jakub at redhat dot com @ 2004-09-23 8:32 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From jakub at redhat dot com 2004-09-23 08:32 -------
Your testcase invokes undefined behaviour.
See
http://www.opengroup.org/onlinepubs/009695399/functions/pthread_cleanup_pop.html
The effect of the use of return, break, continue, and goto to prematurely leave a
code block described by a pair of pthread_cleanup_push() and
pthread_cleanup_pop() functions calls is undefined.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
http://sources.redhat.com/bugzilla/show_bug.cgi?id=400
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* [Bug nptl/400] "return V;" and "pthread_exit(V) ;" don't behave the same way.
2004-09-23 8:20 [Bug nptl/400] New: "return V;" and "pthread_exit(V) ;" don't behave the same way sebastien dot decugis at ext dot bull dot net
2004-09-23 8:22 ` [Bug nptl/400] " sebastien dot decugis at ext dot bull dot net
2004-09-23 8:32 ` jakub at redhat dot com
@ 2004-09-23 8:38 ` sebastien dot decugis at ext dot bull dot net
2 siblings, 0 replies; 4+ messages in thread
From: sebastien dot decugis at ext dot bull dot net @ 2004-09-23 8:38 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From sebastien dot decugis at ext dot bull dot net 2004-09-23 08:38 -------
Oops yes sorry!!
--
http://sources.redhat.com/bugzilla/show_bug.cgi?id=400
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end of thread, other threads:[~2004-09-23 8:38 UTC | newest]
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2004-09-23 8:20 [Bug nptl/400] New: "return V;" and "pthread_exit(V) ;" don't behave the same way sebastien dot decugis at ext dot bull dot net
2004-09-23 8:22 ` [Bug nptl/400] " sebastien dot decugis at ext dot bull dot net
2004-09-23 8:32 ` jakub at redhat dot com
2004-09-23 8:38 ` sebastien dot decugis at ext dot bull dot net
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