debug/____longjmp_chk.s

   1  .section .rodata.str1.1,"aMS",@progbits,1
   2  .type longjmp_msg,@object
   3 longjmp_msg:
   4  .string "longjmp causes uninitialized stack frame"
   5  .size longjmp_msg, .-longjmp_msg
   6  .text
   7 .globl ____longjmp_chk
   8 .type ____longjmp_chk,@function
   9 .align 1<<4
  10 ____longjmp_chk:
  11  mov (6*8)(%rdi), %r8
  12  mov (1*8)(%rdi),%r9
  13  mov (7*8)(%rdi), %rdx
  14  ror $2*8 +1, %r8; xor %fs:48, %r8
  15  ror $2*8 +1, %r9; xor %fs:48, %r9
  16  ror $2*8 +1, %rdx; xor %fs:48, %rdx
  17  cmp %r8, %rsp
  18  jbe .Lok
  19  movq %rdi, %r10
  20  movl %esi, %ebx
  21  xorl %edi, %edi
  22  lea -24(%rsp), %rsi
  23  movl $131, %eax
  24  syscall
  25  testl %eax, %eax
  26  jne .Lok2
  27  testl $1, (-24 + 8)(%rsp)
  28  jz .Lfail
  29  mov (-24 + 0)(%rsp), %rax
  30  add (-24 + 16)(%rsp), %rax
  31  sub %r8, %rax
  32  cmp (-24 + 16)(%rsp), %rax
  33  jae .Lok2
  34 .Lfail: sub $8, %rsp
  35 lea longjmp_msg(%rip), %rdi
  36 call __fortify_fail
  37 nop
  38 .Lok2: movq %r10, %rdi
  39  movl %ebx, %esi
  40 .Lok:
  41
  42  movq (0*8)(%rdi), %rbx
  43  movq (2*8)(%rdi), %r12
  44  movq (3*8)(%rdi), %r13
  45  movq (4*8)(%rdi), %r14
  46  movq (5*8)(%rdi), %r15
  47  movl %esi, %eax
  48  mov %r8, %rsp
  49  movq %r9,%rbp
  50
  51  jmpq *%rdx
  52 .size ____longjmp_chk,.-____longjmp_chk