- call 1f /* glibc ABI compat */
- .long -1
- .long -1
-1: push %rsi /* save arg2 for munmap */
- push %rdx /* save arg3 for munmap */
- mov %rdi,%rsi /* rt_sigprocmask() args: move arg1 to rsi */
- xor %rdi,%rdi
- xor %rdx,%rdx
- movq $8,%r10
- movl $14,%eax /* __NR_rt_sigprocmask */
- syscall /* call rt_sigprocmask(0,arg1,0,8) */
- pop %rsi /* munmap() args: reload from stack */
- pop %rdi
- movl $11,%eax /* __NR_munmap */