tools/tests/execperf/exit-asm.S

   1 .text
   2         .align 2
   3         .globl _main
   4 _main:
   5 #if defined(__x86_64__)
   6         pushq $0
   7         mov %rsp, %rbp
   8         andq $0xfffffffffffffff0, %rsp
   9         movl $42, %edi
  10         movl $0x2000001, %eax
  11         movl $0, %ecx
  12         movq %rcx, %r10
  13         syscall
  14         jmp 1f
  15 1:
  16         hlt
  17         nop
  18         nop
  19         nop
  20         nop
  21 #elif defined(__i386__)
  22         pushl $0
  23         mov %esp, %ebp
  24         andl $0xfffffff0, %esp
  25         subl $12, %esp
  26         pushl $42
  27         mov $0x40001, %eax
  28         call _sysenter_trap
  29         jmp 1f
  30 1:
  31         hlt
  32         nop
  33         nop
  34         nop
  35         nop
  36 _sysenter_trap:
  37         pop %edx
  38         mov %esp, %ecx
  39         sysenter
  40         nop
  41 #else
  42 #error Unsupported architecture
  43 #endif