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authorJeff Dike <jdike@addtoit.com>2006-09-25 23:32:59 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 08:49:05 -0700
commit13c06be399902c9ebda08e092edb1614bb4a3761 (patch)
treec67134cfb7efd23ab7017fde32657fa3a7e58154 /arch/um/include/sysdep-x86_64
parentc5c6ba4e08ab9c9e390a0f3a7d9a5c332f5cc6ef (diff)
[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>
Diffstat (limited to 'arch/um/include/sysdep-x86_64')
-rw-r--r--arch/um/include/sysdep-x86_64/archsetjmp.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/um/include/sysdep-x86_64/archsetjmp.h b/arch/um/include/sysdep-x86_64/archsetjmp.h
new file mode 100644
index 00000000000..454fc60aff6
--- /dev/null
+++ b/arch/um/include/sysdep-x86_64/archsetjmp.h
@@ -0,0 +1,21 @@
+/*
+ * arch/x86_64/include/klibc/archsetjmp.h
+ */
+
+#ifndef _KLIBC_ARCHSETJMP_H
+#define _KLIBC_ARCHSETJMP_H
+
+struct __jmp_buf {
+ unsigned long __rbx;
+ unsigned long __rsp;
+ unsigned long __rbp;
+ unsigned long __r12;
+ unsigned long __r13;
+ unsigned long __r14;
+ unsigned long __r15;
+ unsigned long __rip;
+};
+
+typedef struct __jmp_buf jmp_buf[1];
+
+#endif /* _SETJMP_H */