- push %rbx /* save x86_64 abi clobbered registers */
- push %r11
- mov %rdi,%rsi /* shift for syscall */
- movl $0x1002,%edi /* SET_FS register */
- movl $158,%eax /* set fs segment to */
- syscall /* arch_prctl(SET_FS, arg)*/
- pop %r11 /* restore clobbered registers */
- pop %rbx
+ mov %rdi,%rsi /* shift for syscall */
+ movl $0x1002,%edi /* SET_FS register */
+ movl $158,%eax /* set fs segment to */
+ syscall /* arch_prctl(SET_FS, arg)*/