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-rw-r--r--src/signal/x86_64/sigsetjmp.s16
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