Port musl to x86-64. One giant commit!

[musl] / src / signal / x86_64 / sigsetjmp.s

diff --git a/src/signal/x86_64/sigsetjmp.s b/src/signal/x86_64/sigsetjmp.s
new file mode 100644 (file)
index 0000000..0a45078
--- /dev/null
+++ b/src/signal/x86_64/sigsetjmp.s
@@ -0,0 +1,11 @@
+/* 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) */
+1:     jmp setjmp