csu/check_fds.shared.s

   1         .text
   2 #APP
   3         memmove = __GI_memmove
   4         memset = __GI_memset
   5         memcpy = __GI_memcpy
   6         .section        .rodata.str1.1,"aMS",@progbits,1
   7 .LC0:
   8         .string "/dev/full"
   9 .LC1:
  10         .string "/dev/null"
  11 #NO_APP
  12         .text
  13         .p2align 4,,15
  14         .type   check_one_fd, @function
  15 check_one_fd:
  16         pushq   %r12
  17         pushq   %rbp
  18         xorl    %eax, %eax
  19         pushq   %rbx
  20         movl    %esi, %ebp
  21         movl    $1, %esi
  22         movl    %edi, %ebx
  23         subq    $144, %rsp
  24         call    __GI___fcntl64_nocancel
  25         cmpl    $-1, %eax
  26         je      .L11
  27 .L1:
  28         addq    $144, %rsp
  29         popq    %rbx
  30         popq    %rbp
  31         popq    %r12
  32         ret
  33 .L11:
  34         movq    __libc_errno@gottpoff(%rip), %rax
  35         cmpl    $9, %fs:(%rax)
  36         jne     .L1
  37         leaq    .LC1(%rip), %rax
  38         leaq    .LC0(%rip), %rdi
  39         xorl    %r12d, %r12d
  40         cmpl    $131072, %ebp
  41         movl    %ebp, %esi
  42         setne   %r12b
  43         cmove   %rax, %rdi
  44         xorl    %edx, %edx
  45         xorl    %eax, %eax
  46         leaq    259(,%r12,4), %r12
  47         call    __GI___open_nocancel
  48         cmpl    %eax, %ebx
  49         jne     .L5
  50         movq    %rsp, %rsi
  51         movl    %ebx, %edi
  52         call    __GI___fstat64
  53         testl   %eax, %eax
  54         jne     .L5
  55         movl    24(%rsp), %eax
  56         andl    $61440, %eax
  57         cmpl    $8192, %eax
  58         jne     .L5
  59         cmpq    %r12, 40(%rsp)
  60         je      .L1
  61         .p2align 4,,10
  62         .p2align 3
  63 .L5:
  64 #APP
  65 # 81 "check_fds.c" 1
  66         hlt
  67 # 0 "" 2
  68 #NO_APP
  69         jmp     .L5
  70         .size   check_one_fd, .-check_one_fd
  71         .p2align 4,,15
  72         .globl  __libc_check_standard_fds
  73         .hidden __libc_check_standard_fds
  74         .type   __libc_check_standard_fds, @function
  75 __libc_check_standard_fds:
  76         subq    $8, %rsp
  77         movl    $131073, %esi
  78         xorl    %edi, %edi
  79         call    check_one_fd
  80         movl    $131072, %esi
  81         movl    $1, %edi
  82         call    check_one_fd
  83         movl    $131072, %esi
  84         movl    $2, %edi
  85         addq    $8, %rsp
  86         jmp     check_one_fd
  87         .size   __libc_check_standard_fds, .-__libc_check_standard_fds