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! This file is called sigsetjmp.s because that is what V8 uses.
! We do not define sigsetjmp() or setlongjmp() yet.
! Solaris has setjmp/longjmp in setjmp.o. Move this stuff there.
#include <sys/syscallasm.h>
TEXT_SECTION
ALIGN (4)
#ifdef __svr4__
GLOBAL (ASM_SYMBOL (setjmp))
.proc 04
ASM_SYMBOL (setjmp):
clr [%o0]
stx %sp,[%o0+8]
add %o7,8,%g1
stx %g1,[%o0+16]
retl
mov %g0,%o0
GLOBAL (ASM_SYMBOL (longjmp))
.proc 04
ASM_SYMBOL (longjmp):
flushw ! flush register windows
sub %sp,136,%sp
ldx [%o0+8],%fp
ldx [%o0+16],%g1
tst %o1
bne L0
sub %g1,8,%o7
mov 1,%o1
L0:
retl
restore %o1,0,%o0
#else
GLOBAL (ASM_SYMBOL (setjmp))
.proc 04
ASM_SYMBOL (setjmp):
save %sp,-136,%sp
or %g0,%g0,%o0 ! %o0 = 0
or %g0,0x6d,%g1 ! %g1 = 0x6d (syscall number)
ta SYSCALL_TRAP
stw %o0,[%i0+4] ! save result at [%i0+4] (sigmask?)
add %fp,-8,%o1 ! %o1 -> tmp 8 byte buffer
or %g0,%g0,%o0 ! %o0 = 0
or %g0,0x70,%g1 ! %g1 = 0x70 (syscall number)
ta SYSCALL_TRAP
lduw [%fp-4],%g1 ! %g1 = onsstack?
stw %fp,[%i0+8] ! save %fp at [%i0+8]
stw %g1,[%i0+0] ! save ? at [%i0+8]
add %i7,8,%g1 ! %g1 = return address
stw %g1,[%i0+12] ! save return address at [%i0+12]
add %g1,4,%g1 ! %g1 = nPC
stw %g1,[%i0+16] ! save nPC at [%i0+16]
stw %g0,[%i0+20]
stw %g0,[%i0+24]
stw %g0,[%i0+32]
jmpl %i7+8,%g0
restore %g0,0,%o0
GLOBAL (ASM_SYMBOL (longjmp))
.proc 04
ASM_SYMBOL (longjmp):
orcc %g0,%o1,%g0 ! return val == 0 ?
be,a L1 ! branch if 0
or %g0,1,%o1 ! make it 1 (executed if branch taken)
L1:
or %g0,0x8b,%g1 ! set syscall 0x8b
stw %o1,[%o0+28] ! save return val for restoration
ta SYSCALL_TRAP
#endif /* ! __svr4__ */
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