android_kernel_xiaomi_sm8350/arch/um/include/longjmp.h
Jeff Dike c83d4635ee [PATCH] uml: use setjmp/longjmp instead of sigsetjmp/siglongjmp
Now that we are doing soft interrupts, there's no point in using sigsetjmp and
siglongjmp.  Using setjmp and longjmp saves a sigprocmask on every jump.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-18 19:20:20 -08:00

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C

#ifndef __UML_LONGJMP_H
#define __UML_LONGJMP_H
#include <setjmp.h>
#include "os.h"
#define UML_SIGLONGJMP(buf, val) do { \
longjmp(*buf, val); \
} while(0)
#define UML_SIGSETJMP(buf, enable) ({ \
int n; \
enable = get_signals(); \
n = setjmp(*buf); \
if(n != 0) \
set_signals(enable); \
n; })
#endif