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[PATCH] uml: Use klibc setjmp/longjmp

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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>
This commit is contained in:
Jeff Dike
2006-09-25 23:32:59 -07:00
committed by Linus Torvalds
parent c5c6ba4e08
commit 13c06be399
14 changed files with 173 additions and 23 deletions
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19
arch/um/include/sysdep-i386/archsetjmp.h Normal file
View File

@@ -0,0 +1,19 @@
/*
* arch/i386/include/klibc/archsetjmp.h
*/
#ifndef _KLIBC_ARCHSETJMP_H
#define _KLIBC_ARCHSETJMP_H
struct __jmp_buf {
unsigned int __ebx;
unsigned int __esp;
unsigned int __ebp;
unsigned int __esi;
unsigned int __edi;
unsigned int __eip;
};
typedef struct __jmp_buf jmp_buf[1];
#endif /* _SETJMP_H */