misc/ptrace.s

   1         .text
   2         .p2align 4,,15
   3         .globl  ptrace
   4         .type   ptrace, @function
   5 ptrace:
   6         leaq    8(%rsp), %rax
   7         leal    -1(%rdi), %r8d
   8         movq    %rsi, -40(%rsp)
   9         movq    %rdx, -32(%rsp)
  10         movq    %rcx, -24(%rsp)
  11         leaq    -80(%rsp), %r10
  12         movq    %rax, -64(%rsp)
  13         leaq    -48(%rsp), %rax
  14         cmpl    $3, %r8d
  15         movl    8(%rax), %esi
  16         movq    16(%rax), %rdx
  17         movq    %rax, -56(%rsp)
  18         cmovnb  24(%rax), %r10
  19         movl    $101, %eax
  20         movl    $24, -72(%rsp)
  21 #APP
  22 # 45 "../sysdeps/unix/sysv/linux/ptrace.c" 1
  23         syscall
  24
  25 # 0 "" 2
  26 #NO_APP
  27         cmpq    $-4096, %rax
  28         ja      .L16
  29         testq   %rax, %rax
  30         js      .L1
  31         cmpl    $2, %r8d
  32         jbe     .L17
  33 .L1:
  34         rep ret
  35         .p2align 4,,10
  36         .p2align 3
  37 .L17:
  38         movq    __libc_errno@gottpoff(%rip), %rax
  39         movl    $0, %fs:(%rax)
  40         movq    -80(%rsp), %rax
  41         ret
  42         .p2align 4,,10
  43         .p2align 3
  44 .L16:
  45         movq    __libc_errno@gottpoff(%rip), %rdx
  46         negl    %eax
  47         movl    %eax, %fs:(%rdx)
  48         movq    $-1, %rax
  49         ret
  50         .size   ptrace, .-ptrace