signal/sigstack.s

   1         .text
   2 #APP
   3         .section .gnu.warning.sigstack
   4         .previous
   5 #NO_APP
   6         .p2align 4,,15
   7         .globl  sigstack
   8         .type   sigstack, @function
   9 sigstack:
  10         pushq   %rbx
  11         movq    %rsi, %rbx
  12         movq    %rdi, %rax
  13         movl    $0, %edx
  14         subq    $64, %rsp
  15         testq   %rbx, %rbx
  16         leaq    32(%rsp), %rsi
  17         cmove   %rdx, %rsi
  18         xorl    %edi, %edi
  19         testq   %rax, %rax
  20         je      .L3
  21         movq    (%rax), %rdx
  22         movl    8(%rax), %eax
  23         movq    %rsp, %rdi
  24         testl   %eax, %eax
  25         movq    %rdx, (%rsp)
  26         movq    %rdx, 16(%rsp)
  27         setne   %al
  28         movzbl  %al, %eax
  29         movl    %eax, 8(%rsp)
  30 .L3:
  31         call    __sigaltstack
  32         testl   %eax, %eax
  33         jne     .L1
  34         testq   %rbx, %rbx
  35         je      .L1
  36         movq    32(%rsp), %rdx
  37         movq    %rdx, (%rbx)
  38         movl    40(%rsp), %edx
  39         andl    $1, %edx
  40         movl    %edx, 8(%rbx)
  41 .L1:
  42         addq    $64, %rsp
  43         popq    %rbx
  44         ret
  45         .size   sigstack, .-sigstack
  46         .section        .gnu.warning.sigstack
  47         #,"a",@progbits
  48         .align 32
  49         .type   __evoke_link_warning_sigstack, @object
  50         .size   __evoke_link_warning_sigstack, 77
  51 __evoke_link_warning_sigstack:
  52         .string "the `sigstack' function is dangerous.  `sigaltstack' should be used instead."
  53         .hidden __sigaltstack