.global __unmapself
.type __unmapself,%function
__unmapself:
- 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 */
+ movl $11,%eax /* SYS_munmap */
syscall /* munmap(arg2,arg3) */
xor %rdi,%rdi /* exit() args: always return success */
- movl $60,%eax /* __NR_exit */
+ movl $60,%eax /* SYS_exit */
syscall /* exit(0) */
.size __unmapself,.-__unmapself