.global sigsetjmp
.type sigsetjmp,%function
sigsetjmp:
#int sigsetjmp(sigjmp_buf buf, int save)
# r3 r4
#0) store save into buf->__fl
stw 4, 448(3)
#1) compare save with 0
cmpwi cr7, 4, 0
#2) if its 0, goto setjmp code
beq- cr7, 1f
#3) else: we must call pthread_sigmask(SIG_SETMASK, 0, (sigset_t *)buf->__ss);
# store non-volatile regs 30, 31 into the setjmp buf
stw 30, 0(3)
stw 31, 4(3)
# use them to store the pointer to the jmpbuf and the link reg
mr 30, 3
mflr 31
# put pointer to ss buf into r5 (3rd arg)
addi 5, 3, 452
# put "2" i.e. SIG_SETMASK in r3
li 3, 2
li 4, 0
bl pthread_sigmask
#restore jmpbuf pointer and link reg
mr 3, 30
mtlr 31
#resore non-volatile regs
lwz 30, 0(3)
lwz 31, 4(3)
1:
b setjmp
