diff options
| -rw-r--r-- | src/signal/x86_64/sigsetjmp.s | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/signal/x86_64/sigsetjmp.s b/src/signal/x86_64/sigsetjmp.s index 0a450785..ac02adb2 100644 --- a/src/signal/x86_64/sigsetjmp.s +++ b/src/signal/x86_64/sigsetjmp.s @@ -1,11 +1,13 @@ /* Copyright 2011 Nicholas J. Kain, licensed GNU LGPL 2.1 or later */ .global sigsetjmp sigsetjmp: - test %rsi,%rsi - jz 1f /* if save == 0, just goto setjmp */ - movq %rsi,64(%rdi) /* move save -> jmp_buf[8] */ - addq $72,%rdi /* add sizeof(jmp_buf) to rdi */ - movl $0,%esi /* arg2 = 0 */ - movl $2,%edx /* arg3 = 2 */ - call sigprocmask /* sigprocmask(jmp_buf, 0, 2) */ + andl %esi,%esi + movq %rsi,64(%rdi) + jz 1f + pushq %rdi + leaq 72(%rdi),%rsi + xorl %edx,%edx + movl $2,%edi + call sigprocmask + popq %rdi 1: jmp setjmp |