Examining function return value in GDB

Question

If I break in line 3:

1  int foo()
2  {
3      return func();
4  }

is there a way to examine the return value of func()?

Thanks.

Dup of http://stackoverflow.com/questions/267674/inspect-the-return-value-of-a-function-in-gdb. — Paul Biggar, Aug 06 '09 at 09:38
Possible duplicate of [Inspect the return value of a function in gdb](http://stackoverflow.com/questions/267674/inspect-the-return-value-of-a-function-in-gdb) — Ciro Santilli OurBigBook.com, Apr 25 '17 at 16:25

score 19 · Accepted Answer · answered Jun 14 '09 at 08:36

19

Use the finish command.

answered Jun 14 '09 at 08:36

David Schmitt

score 3 · Answer 2 · answered Oct 09 '09 at 19:43

3

If you step into "func()", and then say "finish", gdb will return to foo and print the return value of func.

answered Oct 09 '09 at 19:43

Michael Snyder

score 3 · Answer 3 · answered Jun 14 '09 at 08:08

3

After line three the return value will be in EAX, so you can

print $eax

Hope this helps

answered Jun 14 '09 at 08:08

Jake

score 2 · Answer 4 · edited May 23 '17 at 12:25

2

I answered a simular question here, info frame is a platform independent way todo this.

edited May 23 '17 at 12:25

Community

answered Jul 14 '09 at 03:00

RandomNickName42

4 Answers4