Very Computer

1. Problems calling a gdb stack trace from inside the program thats being traced.

I'm trying to get my C program to stack trace itself using gdb.

Upon detecting an error my program does a

system("gdb -x configfile programname programPID > outputfile");

Where the configfile contains the lines:-

bt
quit

Now that works fine from a bash shell but all I get when my program
hits it is a frozen program that needs a Ctrl-C.

Whats going on? Can I use this technique to stack trace my program?

It is a multi-threaded (pthreads) program, compiled using -gstabs+ in
the compile line, with gcc 3.1.

I don't want to have to write my own stack tracing routines!

Thanks,

Joe

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