diff options
author | Mike Frysinger <vapier@gentoo.org> | 2006-03-23 03:16:41 +0000 |
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committer | Mike Frysinger <vapier@gentoo.org> | 2006-03-23 03:16:41 +0000 |
commit | 9535cbf18c6b4415dc35c220ca4cca15eba5dc1b (patch) | |
tree | 4429a2f527eb9ab5ccffcf23257a4e2bd54e56cb /libc/sysdeps/linux/x86_64/bsd-_setjmp.S | |
parent | d126b4a3fbf7e423206712145b4a4efdc0c5b1c1 (diff) |
Richard Sandiford writes:
This patch fixes a miscompilation of mmap() for Coldfire with gcc 4.x.
The problem was that the syscall was being invoked before any part of
the argument structure (buffer[]) had been initialised.
The outcome of gcc PR 19341 is that volatile asms don't implicitly
use or clobber memory, and that "memory" must be explicitly listed
in the clobber list:
http://gcc.gnu.org/PR19341
All syscalls can potentially use or clobber memory, so this patch
adds a "memory" clobber to all the m68k syscall wrappers that I
could find.
Diffstat (limited to 'libc/sysdeps/linux/x86_64/bsd-_setjmp.S')
0 files changed, 0 insertions, 0 deletions