13c06be399
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>
23 lines
385 B
C
23 lines
385 B
C
#ifndef __UML_LONGJMP_H
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#define __UML_LONGJMP_H
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#include "sysdep/archsetjmp.h"
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#include "os.h"
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extern int setjmp(jmp_buf);
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extern void longjmp(jmp_buf, int);
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#define UML_LONGJMP(buf, val) do { \
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longjmp(*buf, val); \
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} while(0)
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#define UML_SETJMP(buf) ({ \
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int n, enable; \
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enable = get_signals(); \
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n = setjmp(*buf); \
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if(n != 0) \
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set_signals(enable); \
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n; })
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#endif
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