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/* $NetBSD: compat_setjmp.S,v 1.2 2011/01/15 07:31:13 matt Exp $ */
#include "SYS.h"
#include "assym.h"
#if defined(LIBC_SCCS)
__RCSID("$NetBSD: compat_setjmp.S,v 1.2 2011/01/15 07:31:13 matt Exp $")
#endif
/*
* C library -- _setjmp, _longjmp
*
* longjmp(a,v)
* will generate a "return(v?v:1)" from the last call to
* setjmp(a)
* by restoring registers from the stack.
* The previous signal state is restored.
*/
ENTRY(setjmp)
mr %r6,%r3
li %r3,SIG_BLOCK
li %r4,0
_DOSYSCALL(compat_13_sigprocmask13) # assume no error XXX
mflr %r11
mfcr %r12
mr %r10,%r1
mr %r9,%r2
mr %r8,%r3
stmw %r8,4(%r6)
li %r3,0
blr
END(setjmp)
ENTRY(longjmp)
lmw %r8,4(%r3)
mr %r6,%r4
mtlr %r11
mtcr %r12
mr %r2,%r9
mr %r1,%r10
mr %r4,%r8
li %r3,SIG_SETMASK
_DOSYSCALL(compat_13_sigprocmask13) # assume no error XXX
or. %r3,%r6,%r6
bnelr
li %r3,1
blr
END(longjmp)
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