How to re-run program in GDB several times?

Question

I have a program which fails sporadically, but with the same error. To debug it I'd like to run it under GDB until it fails, set breakpoints and re-run it. what do I do:

gdb --args /path/to/program <program args>

But I can't find anywhere how do I tell GDB "run this program 100 times" for example.

Answer 1

The simplest solution I can think of is to run program in infinite while loop until it fails or you press Ctrl+C to break the loop.

(gdb) while 1
 >run
 >end

Answer 2

This gdb script will run the program 100 times, or until it receives a signal. $_siginfo is non-void if the program is stopped due to a signal, and is void if the program exited. As far as I can tell, any stop of the process, including breakpoints, watchpoints, and single-stepping, will set $_siginfo to something.

set $n = 100
while $n-- > 0
  printf "starting program\n"
  run
  if $_siginfo
    printf "Received signal %d, stopping\n", $_siginfo.si_signo
    loop_break
  else
    printf "program exited\n"
  end
end