io/copy_file_range.shared.s

   1         .text
   2 #APP
   3         memmove = __GI_memmove
   4         memset = __GI_memset
   5         memcpy = __GI_memcpy
   6 #NO_APP
   7         .p2align 4,,15
   8         .globl  copy_file_range
   9         .type   copy_file_range, @function
  10 copy_file_range:
  11         movq    %rcx, %r10
  12 #APP
  13 # 28 "../sysdeps/unix/sysv/linux/copy_file_range.c" 1
  14         movl %fs:24,%eax
  15 # 0 "" 2
  16 #NO_APP
  17         testl   %eax, %eax
  18         jne     .L2
  19         movl    $326, %eax
  20 #APP
  21 # 28 "../sysdeps/unix/sysv/linux/copy_file_range.c" 1
  22         syscall
  23
  24 # 0 "" 2
  25 #NO_APP
  26         cmpq    $-4096, %rax
  27         ja      .L9
  28         rep ret
  29         .p2align 4,,10
  30         .p2align 3
  31 .L2:
  32         pushq   %r15
  33         pushq   %r14
  34         movq    %r8, %r15
  35         pushq   %r13
  36         pushq   %r12
  37         movq    %rcx, %r14
  38         pushq   %rbp
  39         pushq   %rbx
  40         movl    %edx, %r13d
  41         movq    %rsi, %r12
  42         movl    %edi, %ebx
  43         subq    $24, %rsp
  44         movl    %r9d, 8(%rsp)
  45         call    __libc_enable_asynccancel
  46         movl    8(%rsp), %r9d
  47         movl    %eax, %ebp
  48         movq    %r15, %r8
  49         movq    %r14, %r10
  50         movl    %r13d, %edx
  51         movq    %r12, %rsi
  52         movl    %ebx, %edi
  53         movl    $326, %eax
  54 #APP
  55 # 28 "../sysdeps/unix/sysv/linux/copy_file_range.c" 1
  56         syscall
  57
  58 # 0 "" 2
  59 #NO_APP
  60         cmpq    $-4096, %rax
  61         ja      .L10
  62 .L4:
  63         movl    %ebp, %edi
  64         movq    %rax, 8(%rsp)
  65         call    __libc_disable_asynccancel
  66         movq    8(%rsp), %rax
  67         addq    $24, %rsp
  68         popq    %rbx
  69         popq    %rbp
  70         popq    %r12
  71         popq    %r13
  72         popq    %r14
  73         popq    %r15
  74         ret
  75         .p2align 4,,10
  76         .p2align 3
  77 .L9:
  78         movq    __libc_errno@gottpoff(%rip), %rdx
  79         negl    %eax
  80         movl    %eax, %fs:(%rdx)
  81         movq    $-1, %rax
  82         ret
  83 .L10:
  84         movq    __libc_errno@gottpoff(%rip), %rdx
  85         negl    %eax
  86         movl    %eax, %fs:(%rdx)
  87         movq    $-1, %rax
  88         jmp     .L4
  89         .size   copy_file_range, .-copy_file_range
  90         .hidden __libc_disable_asynccancel
  91         .hidden __libc_enable_asynccancel