csu/rtld-check_fds.shared.s

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