07-31-2007
examine core file after abort()
I'm running Red Hat Linux 2.6.7 on a x86_64 box.
I have a core file from a program that called abort(). Does anyone here know how can I get a backtrace? (Re-creating the error with svd running inside gdb has proved impossible).
% gdb svd core.25223
GNU gdb Red Hat Linux (6.0post-0.20040223.19rh)
...
Core was generated by `svd'.
Program terminated with signal 6, Aborted.
...
#0 0x0000003db9b2dc05 in raise () from /lib64/tls/libc.so.6
(gdb) bt
#0 0x0000003db9b2dc05 in raise () from /lib64/tls/libc.so.6
Cannot access memory at address 0x7fbfffe038
(gdb)
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LEARN ABOUT REDHAT
pstack
PSTACK(1) Linux Programmer's Manual PSTACK(1)
NAME
pstack - print a stack trace of running processes
SYNOPSIS
pstack pid [...]
DESCRIPTION
pstack attaches to the active processes named by the pids on the command line, and prints out an execution stack trace, including a hint at
what the function arguments are. If symbols exist in the binary (usually the case unless you have run strip(1)), then symbolic addresses
are printed as well.
If the process is part of a thread group, then pstack will print out a stack trace for each of the threads in the group.
RESTRICTIONS
pstack currently works only on Linux, only on an x86 machine running 32 bit ELF binaries (64 bit not supported). Also, for symbolic infor-
mation, you need to use a GNU compiler to generate your program, and you can't strip symbols from the binaries. For thread information to
be dumped, you have to use the debug-aware version of libpthread.so. (To check, run nm(1) on your pthreads library, and make sure that the
symbol "__pthread_threads_debug" is defined.)
SEE ALSO
nm(1), ptrace(2)
AUTHORS
Ross Thompson <ross@whatsis.com>
Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>
Red Hat Linux Feb 25 2002 PSTACK(1)