debug/read_chk.s

   1         .text
   2         .p2align 4,,15
   3         .globl  __read_chk
   4         .type   __read_chk, @function
   5 __read_chk:
   6 .LFB46:
   7         cmpq    %rcx, %rdx
   8         ja      .L8
   9         xorl    %eax, %eax
  10 #APP
  11 # 33 "read_chk.c" 1
  12         syscall
  13
  14 # 0 "" 2
  15 #NO_APP
  16         cmpq    $-4096, %rax
  17         ja      .L9
  18         rep ret
  19         .p2align 4,,10
  20         .p2align 3
  21 .L9:
  22         movq    __libc_errno@gottpoff(%rip), %rdx
  23         negl    %eax
  24         movl    %eax, %fs:(%rdx)
  25         movq    $-1, %rax
  26         ret
  27 .L8:
  28         subq    $8, %rsp
  29         call    __chk_fail
  30 .LFE46:
  31         .size   __read_chk, .-__read_chk
  32         .hidden __chk_fail