This is the mail archive of the
mailing list for the GDB project.
debugging frame pointerless leaf functions on x86
- To: gdb at sources dot redhat dot com
- Subject: debugging frame pointerless leaf functions on x86
- From: Dan Nicolaescu <dann at godzilla dot ICS dot UCI dot EDU>
- Date: Sat, 17 Mar 2001 00:36:18 -0800
I was checking to see if gdb can debug frame pointerless leaf functions on x86,
so that -momit-leaf-frame-pointer could be turned on by default in GCC-3.x
I found a patch and a discussion in the mailing list archives:
but the patch does not seem to have been applied.
That is a pitty, because using -O2 -momit-leaf-frame-pointer gives a
performance improvement of a few percentage points when running SPEC95
over just using -O2. (when using a current GCC snapshot)
And SPEC95 doesn't really have too many function calls, I can bet the
performance improvement can be greater for other programs.
Is there any chance for that patch to be revived and integrated?