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authorJeff Dike <jdike@addtoit.com>2006-04-18 22:21:44 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-19 09:13:51 -0700
commitfb30d64568fd8f6a21afef987f11852a109723da (patch)
treef5cb57a46f237bb3500743d3421d2ec95849e38a /arch/um/sys-i386
parent966a082f80a073af1564c5ed6313ef2f0587dde3 (diff)
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[PATCH] uml: add missing __volatile__
We were missing __volatile__ on some bits of asm in the segfault handlers. On x86_64, this was messing up the move from %rdx to uc because that was moved to after the GET_FAULTINFO_FROM_SC, which changed %rdx. Also changed the other bit of asm and the one in the i386 handler to prevent any similar occurrences. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/sys-i386')
-rw-r--r--arch/um/sys-i386/stub_segv.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/um/sys-i386/stub_segv.c b/arch/um/sys-i386/stub_segv.c
index a37f672ec964..2355dc19c46c 100644
--- a/arch/um/sys-i386/stub_segv.c
+++ b/arch/um/sys-i386/stub_segv.c
@@ -27,6 +27,6 @@ stub_segv_handler(int sig)
* the stack in its original form when we do the sigreturn here, by
* hand.
*/
- __asm__("mov %0,%%esp ; movl %1, %%eax ; "
- "int $0x80" : : "a" (sc), "g" (__NR_sigreturn));
+ __asm__ __volatile__("mov %0,%%esp ; movl %1, %%eax ; "
+ "int $0x80" : : "a" (sc), "g" (__NR_sigreturn));
}