- To: Chabane dot Rezzik at usa dot alcatel dot com (Chabane Rezzik)
- Subject: Re: Caught signal 9 in core file ????
- From: "Peter.Schauer" <Peter dot Schauer at regent dot e-technik dot tu-muenchen dot de>
- Date: Fri, 21 Sep 2001 22:27:11 MET DST
- Cc: gnu-gdb-bug at gnu dot org
- List-Id: Bug reports for GDB, the GNU debugger <bug-gdb.gnu.org>
This happens with multithreaded programs, as BFD is picking up the current
signal from some other thread (which received a SIGKILL due to the death
of the currently executing thread).
The following lightly tested BFD patch would fix the problem at least for
Solaris, but I currently have very little time to file a proper RFA, sorry.
*** bfd/elf.c.orig Sun Jul 29 10:48:13 2001
--- bfd/elf.c Fri Sep 21 22:18:41 2001
***************
*** 5436,5442 ****
offset = offsetof (prstatus_t, pr_reg);
memcpy (&prstat, note->descdata, sizeof (prstat));
! elf_tdata (abfd)->core_signal = prstat.pr_cursig;
elf_tdata (abfd)->core_pid = prstat.pr_pid;
/* pr_who exists on:
--- 5436,5443 ----
offset = offsetof (prstatus_t, pr_reg);
memcpy (&prstat, note->descdata, sizeof (prstat));
! if (elf_tdata (abfd)->core_signal == 0)
! elf_tdata (abfd)->core_signal = prstat.pr_cursig;
elf_tdata (abfd)->core_pid = prstat.pr_pid;
/* pr_who exists on:
***************
*** 5459,5465 ****
offset = offsetof (prstatus32_t, pr_reg);
memcpy (&prstat, note->descdata, sizeof (prstat));
! elf_tdata (abfd)->core_signal = prstat.pr_cursig;
elf_tdata (abfd)->core_pid = prstat.pr_pid;
/* pr_who exists on:
--- 5460,5467 ----
offset = offsetof (prstatus32_t, pr_reg);
memcpy (&prstat, note->descdata, sizeof (prstat));
! if (elf_tdata (abfd)->core_signal == 0)
! elf_tdata (abfd)->core_signal = prstat.pr_cursig;
elf_tdata (abfd)->core_pid = prstat.pr_pid;
/* pr_who exists on:
>
> While running gdb to investigate a core file I noticed at the
> beggining of the gdb output while reading the core file
> the following line (take a look to the last line):
>
> Copyright 1998 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
> are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions. This version of GDB is
> supported
> for customers of Cygnus Solutions. Type "show warranty" for details.
> This GDB was configured as "i386-pc-solaris2.7"...
> Core was generated by `/opt/ALAsm/ConfigMaint/bin/ConfigMaint'.
> Program terminated with signal 9, Killed.
>
>
> How can a signal 9 generate a core file?
>
> Regards,
> Chabane
>
>
>
> --
> Alcatel USA Internet: Chabane.Rezzik@usa.alcatel.com
> 1000 Coit Road Plano, Texas 75075
> **** The opinions expressed are not those of Alcatel USA ****
>
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>
--
Peter Schauer pes@regent.e-technik.tu-muenchen.de
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