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gdb/571: Cant view stack trace on alpha core file when target linked to -lpthread -lexc


>Number:         571
>Category:       gdb
>Synopsis:       Cant view stack trace on alpha core file when target linked to -lpthread -lexc
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jun 15 03:48:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     eric.ayers@compgen.com
>Release:        gdb-5.2, gdb+dejagnu-20020614
>Organization:
>Environment:
Compaq Tru64 (OSF/1) 4.0f, 5.1a
Compiled gdb using native 'cc' compiler
>Description:
When an executable is compiled with threads support, gdb
cannot read the stack trace of the resulting core file. 
The stack traces always look similar to:

(gdb) set heuristic-fence 10000000
(gdb) where
#0  0x000003ff805b0c18 in __nxm_thread_kill () from /usr/shlib/libpthread.so
#1  0x000003ff805a0830 in pthread_kill () from /usr/shlib/libpthread.so
#2  0x000003ff805b3da0 in __excInit () from /usr/shlib/libpthread.so
#3  0x000003ff807e3710 in exc_unwind_rfp () from /usr/shlib/libexc.so
#4  0x000003ff807e3810 in exc_unwind () from /usr/shlib/libexc.so
#5  0x000003ff807e3acc in exc_raise_signal_exception () from /usr/shlib/libexc.so
warning: Hit heuristic-fence-post without finding
warning: enclosing function for address 0x86
This warning occurs if you are debugging a function without any symbols
(for example, in a stripped executable).  In that case, you may wish to
increase the size of the search with the `set heuristic-fence-post' command.
>How-To-Repeat:
Here is the test program:

/* compile with 
  gcc -g test_compaq_crash.c -o test_compaq_crash  -lpthread -lexc
*/
#include <stdio.h>
int main (int argc, char * argv[])
{
   printf ("Hello World!\n");
   *(int *)0 = 1;

}

compile and run the program and allow it to generate a core file

gdb test_compaq_crash core
(gdb) where

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:


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