[PATCH] uml: Use klibc setjmp/longjmp
This patch adds an implementation of setjmp and longjmp to UML, allowing
access to the inside of a jmpbuf without needing the access macros formerly
provided by libc.
The implementation is stolen from klibc. I copy the relevant files into
arch/um. I have another patch which avoids the copying, but requires klibc be
in the tree.
setjmp and longjmp users required some tweaking. Includes of <setjmp.h> were
removed and includes of the UML longjmp.h were added where necessary. There
are also replacements of siglongjmp with UML_LONGJMP which I somehow missed
earlier.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/um/include/longjmp.h b/arch/um/include/longjmp.h
index 1b5c013..e93c6d3 100644
--- a/arch/um/include/longjmp.h
+++ b/arch/um/include/longjmp.h
@@ -1,9 +1,12 @@
#ifndef __UML_LONGJMP_H
#define __UML_LONGJMP_H
-#include <setjmp.h>
+#include "sysdep/archsetjmp.h"
#include "os.h"
+extern int setjmp(jmp_buf);
+extern void longjmp(jmp_buf, int);
+
#define UML_LONGJMP(buf, val) do { \
longjmp(*buf, val); \
} while(0)
