diff options
Diffstat (limited to 'src/signal/powerpc')
| -rw-r--r-- | src/signal/powerpc/restore.s | 11 | ||||
| -rw-r--r-- | src/signal/powerpc/sigsetjmp.s | 34 |
2 files changed, 45 insertions, 0 deletions
diff --git a/src/signal/powerpc/restore.s b/src/signal/powerpc/restore.s new file mode 100644 index 00000000..fd7bcba5 --- /dev/null +++ b/src/signal/powerpc/restore.s @@ -0,0 +1,11 @@ + .global __restore + .type __restore,%function +__restore: + li 0, 119 #__NR_sigreturn + sc + + .global __restore_rt + .type __restore_rt,%function +__restore_rt: + li 0, 172 # __NR_rt_sigreturn + sc diff --git a/src/signal/powerpc/sigsetjmp.s b/src/signal/powerpc/sigsetjmp.s new file mode 100644 index 00000000..0b79dcce --- /dev/null +++ b/src/signal/powerpc/sigsetjmp.s @@ -0,0 +1,34 @@ + .global sigsetjmp + .type sigsetjmp,%function +sigsetjmp: + #int sigsetjmp(sigjmp_buf buf, int save) + # r3 r4 + #0) store save into buf->__fl + stw 4, 256(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); + # thus store r3 on the stack, to restore it later + stw 3, -4(1) + # store old link reg + mflr 0 + stw 0, -8(1) + # increase stack frame by 16 + subi 1, 1, 16 + # put pointer to ss buf into r5 (3rd arg) + addi 5, 3, 260 + # put "2" i.e. SIG_SETMASK in r3 + li 3, 2 + li 4, 0 + bl pthread_sigmask + #restore sp + addi 1, 1, 16 + #restore r3 + lwz 3, -4(1) + #restore link reg + lwz 0, -8(1) + mtlr 0 +1: + b setjmp |