Bug#506850: marked as done (libc6-prof: profiling C library causes FPE)
Your message dated Sat, 31 Oct 2009 21:13:08 +0100
with message-id <20091031201308.GD26129@hall.aurel32.net>
and subject line Re: Bug#506850: incorrectly forwarded?
has caused the Debian Bug report #506850,
regarding libc6-prof: profiling C library causes FPE
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
506850: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=506850
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: libc6-prof
Version: 2.7-16
Severity: normal
Executables linked with option -p or -pg and profiling library libc_p.a
throw a SIGFPE. Even very simple one as this:
% cat x.c
#include <stdio.h>
main(){printf("hello, world!\n");}
will die:
% gcc -p x.c -lc_p
% a.out
[1] 30461 floating point exception (core dumped) a.out
% gcc -pg x.c -lc_p
% a.out
[1] 30468 floating point exception (core dumped) a.out
% gcc -g -pg x.c -lc_p
% gdb a.out
GNU gdb 6.8-debian
This GDB was configured as "i486-linux-gnu"...
(gdb) r
Starting program: /home/xxx/a.out
Program received signal SIGFPE, Arithmetic exception.
0x08056c86 in profil ()
Current language: auto; currently asm
(gdb) bt
#0 0x08056c86 in profil ()
#1 0x08056968 in moncontrol ()
#2 0x0804d136 in __gmon_start__ () at gmon-start.c:74
#3 0xb7f3da22 in ?? () from /lib/libgcc_s.so.1
#4 0xb7f5bbe8 in ?? ()
#5 0xb7f77ff4 in ?? () from /lib/ld-linux.so.2
#6 0xbfe76068 in ?? ()
#7 0xb7f6ade4 in ?? () from /lib/ld-linux.so.2
#8 0x00000001 in ?? ()
#9 0xbfe760c4 in ?? ()
#10 0xbfe760cc in ?? ()
#11 0x00000009 in ?? ()
#12 0xbfe7607c in ?? ()
#13 0x00000001 in ?? ()
#14 0x08048034 in ?? ()
-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (900, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-1-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=hu_HU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages libc6-prof depends on:
ii libc6 2.7-16 GNU C Library: Shared libraries
libc6-prof recommends no packages.
libc6-prof suggests no packages.
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 2.7-11
On Sat, Oct 31, 2009 at 01:20:47PM -0600, John Comeau wrote:
> The bug forwarded to RedHat was for a segfault. The FPU exception
> continues to exist in libc6-prof 2.10.1-3.
Actually it looks like this bug can be closed. Look at
/usr/share/doc/libc6-prof/README.Debian to see how to compile your
code with profiling enabled.
--
Aurelien Jarno GPG: 1024D/F1BCDB73
aurelien@aurel32.net http://www.aurel32.net
--- End Message ---
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