[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
GCC 4.6 breaks GNU Mach debugger
From: |
Sergio López |
Subject: |
GCC 4.6 breaks GNU Mach debugger |
Date: |
Mon, 3 Oct 2011 22:02:11 +0200 |
Hi,
GCC 4.6.1 manual states that, starting with version 4.6, targets
Linux_x86 and Darwin_x86 use "-fomit-frame-pointer" when not
optimizing for size. This seems to be also the case for Hurd_x86,
since compiling GNU Mach with it breaks i386/i386/locore.S:kdb_kintr,
as it expects to find the base frame pointer in ebp.
I see three solutions for this problem:
1.- Modify GCC build options to disable "-fomit-frame-pointer" for
Hurd_x86 target.
2.- Compile GNU Mach with "-fno-omit-frame-pointer".
3.- Fix all code which depends on having the frame pointer in ebp.
Personally, I'd go with the first one. What do you think?
- GCC 4.6 breaks GNU Mach debugger,
Sergio López <=