1998-10-03 16:30:37 +04:00
|
|
|
/* $NetBSD: setjmp.S,v 1.3 1998/10/03 12:30:38 tsubai Exp $ */
|
1997-03-29 23:55:50 +03:00
|
|
|
|
|
|
|
|
#include <sys/syscall.h>
|
|
|
|
|
|
|
|
|
|
#include <machine/asm.h>
|
|
|
|
|
|
|
|
|
|
#if defined(LIBC_SCCS)
|
|
|
|
|
.text
|
1998-10-03 16:30:37 +04:00
|
|
|
.asciz "$NetBSD: setjmp.S,v 1.3 1998/10/03 12:30:38 tsubai Exp $"
|
1997-03-29 23:55:50 +03:00
|
|
|
#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 6,3
|
|
|
|
|
li 3,1 # SIG_BLOCK
|
|
|
|
|
li 4,0
|
1998-10-03 16:30:37 +04:00
|
|
|
li 0,SYS_compat_13_sigprocmask13
|
1997-03-29 23:55:50 +03:00
|
|
|
sc # assume no error XXX
|
|
|
|
|
mflr 11
|
|
|
|
|
mfcr 12
|
|
|
|
|
mr 10,1
|
|
|
|
|
mr 9,2
|
|
|
|
|
mr 8,3
|
|
|
|
|
stmw 8,4(6)
|
|
|
|
|
li 3,0
|
|
|
|
|
blr
|
|
|
|
|
|
|
|
|
|
ENTRY(longjmp)
|
|
|
|
|
lmw 8,4(3)
|
|
|
|
|
mr 6,4
|
|
|
|
|
mtlr 11
|
|
|
|
|
mtcr 12
|
|
|
|
|
mr 2,9
|
|
|
|
|
mr 1,10
|
|
|
|
|
mr 4,8
|
|
|
|
|
li 3,3 # SIG_SETMASK
|
1998-10-03 16:30:37 +04:00
|
|
|
li 0,SYS_compat_13_sigprocmask13
|
1997-03-29 23:55:50 +03:00
|
|
|
sc # assume no error XXX
|
|
|
|
|
or. 3,6,6
|
|
|
|
|
bnelr
|
|
|
|
|
li 3,1
|
|
|
|
|
blr
|
