rt/shm_unlink.s

   1         .text
   2         .p2align 4,,15
   3         .globl  shm_unlink
   4         .type   shm_unlink, @function
   5 shm_unlink:
   6         pushq   %rbp
   7         movq    %rsp, %rbp
   8         pushq   %r14
   9         pushq   %r13
  10         pushq   %r12
  11         pushq   %rbx
  12         movq    %rdi, %rbx
  13         leaq    -40(%rbp), %rdi
  14         subq    $16, %rsp
  15         call    __shm_directory@PLT
  16         testq   %rax, %rax
  17         je      .L2
  18         cmpb    $47, (%rbx)
  19         movq    %rax, %r14
  20         jne     .L4
  21         .p2align 4,,10
  22         .p2align 3
  23 .L3:
  24         addq    $1, %rbx
  25         cmpb    $47, (%rbx)
  26         je      .L3
  27 .L4:
  28         movq    %rbx, %rdi
  29         call    strlen@PLT
  30         leaq    1(%rax), %r12
  31         cmpq    $1, %r12
  32         je      .L6
  33         cmpq    $254, %r12
  34         ja      .L6
  35         movl    $47, %esi
  36         movq    %rbx, %rdi
  37         call    strchr@PLT
  38         testq   %rax, %rax
  39         jne     .L6
  40         movq    -40(%rbp), %rdx
  41         movq    %r14, %rsi
  42         leaq    30(%rdx,%r12), %rax
  43         andq    $-16, %rax
  44         subq    %rax, %rsp
  45         leaq    15(%rsp), %r13
  46         andq    $-16, %r13
  47         movq    %r13, %rdi
  48         call    __mempcpy@PLT
  49         movq    %r12, %rdx
  50         movq    %rbx, %rsi
  51         movq    %rax, %rdi
  52         call    memcpy@PLT
  53         movq    %r13, %rdi
  54         call    unlink@PLT
  55         testl   %eax, %eax
  56         js      .L12
  57 .L1:
  58         leaq    -32(%rbp), %rsp
  59         popq    %rbx
  60         popq    %r12
  61         popq    %r13
  62         popq    %r14
  63         popq    %rbp
  64         ret
  65         .p2align 4,,10
  66         .p2align 3
  67 .L12:
  68         movq    errno@gottpoff(%rip), %rdx
  69         cmpl    $1, %fs:(%rdx)
  70         jne     .L1
  71         movl    $13, %fs:(%rdx)
  72         leaq    -32(%rbp), %rsp
  73         popq    %rbx
  74         popq    %r12
  75         popq    %r13
  76         popq    %r14
  77         popq    %rbp
  78         ret
  79         .p2align 4,,10
  80         .p2align 3
  81 .L2:
  82         movq    errno@gottpoff(%rip), %rax
  83         movl    $38, %fs:(%rax)
  84         leaq    -32(%rbp), %rsp
  85         movl    $-1, %eax
  86         popq    %rbx
  87         popq    %r12
  88         popq    %r13
  89         popq    %r14
  90         popq    %rbp
  91         ret
  92         .p2align 4,,10
  93         .p2align 3
  94 .L6:
  95         movq    errno@gottpoff(%rip), %rax
  96         movl    $2, %fs:(%rax)
  97         movl    $-1, %eax
  98         jmp     .L1
  99         .size   shm_unlink, .-shm_unlink