Date: Wed, 11 Oct 2006 16:29:03 +0200 (CEST) From: Gergely CZUCZY <phoemix@harmless.hu> To: FreeBSD-gnats-submit@FreeBSD.org Subject: threads/104297: mixing libthr and libpthread through libs segfaults the binary Message-ID: <200610111429.k9BET3aF047135@marvin.harmless.hu> Resent-Message-ID: <200610111430.k9BEUGDi067051@freefall.freebsd.org>
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>Number: 104297
>Category: threads
>Synopsis: mixing libthr and libpthread through libs segfaults the binary
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: freebsd-threads
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Oct 11 14:30:15 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Gergely CZUCZY
>Release: FreeBSD 6.1-RELEASE-p7 i386
>Organization:
Harmless Digital Ltd
>Environment:
System: FreeBSD marvin.harmless.hu 6.1-RELEASE-p7 FreeBSD 6.1-RELEASE-p7 #0: Sun Sep 24 09:02:34 CEST 2006 root@marvin.harmless.hu:/usr/obj/usr/src/sys/MARVIN i386
installed PostgreSQL 8.1 which uses pthread (-lpthread)
>Description:
If you build a binary which you link against libthr, and it
will also be linked against a library which is linked against libpthread
the output binary will segfault.
>How-To-Repeat:
$ cat > test.c
int main(int argc, char *argv[]) {
return 0;
}
^C
$ export LDFLAGS="-lthr -L/usr/local/lib -lpq"
$ make test && ./test
c++ -O2 -pipe -march=pentium4 -lkse -L/usr/local/lib -lpq test.cc -o test
Segmentation fault: 11 (core dumped)
I've tested it with three variation of LDFLAGS, it apperas
that only libthr is broken.
working ones:
export LDFLAGS="-lthread -L/usr/local/lib -lpq"
export LDFLAGS="-lc_r -L/usr/local/lib -lpq"
segfaults:
export LDFLAGS="-lthr -L/usr/local/lib -lpq"
>Fix:
N/A
>Release-Note:
>Audit-Trail:
>Unformatted:
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