stdlib/makecontext.s

   1         .text
   2         .p2align 4,,15
   3         .globl  __makecontext
   4         .type   __makecontext, @function
   5 __makecontext:
   6         pushq   %rbx
   7         movq    $-8, %rax
   8         movq    %rcx, -24(%rsp)
   9         movq    32(%rdi), %rcx
  10         addq    16(%rdi), %rcx
  11         cmpl    $6, %edx
  12         movq    %r8, -16(%rsp)
  13         movq    %r9, -8(%rsp)
  14         jle     .L2
  15         leal    -6(%rdx), %r8d
  16         movslq  %r8d, %r8
  17         salq    $3, %r8
  18         subq    %r8, %rax
  19 .L2:
  20         addq    %rax, %rcx
  21         movl    $6, %eax
  22         movq    %rsi, 168(%rdi)
  23         andq    $-16, %rcx
  24         cmpl    $6, %edx
  25         movq    8(%rdi), %rsi
  26         cmovge  %edx, %eax
  27         leaq    -8(%rcx), %r8
  28         leaq    __start_context(%rip), %rbx
  29         subl    $5, %eax
  30         testl   %edx, %edx
  31         movl    $24, -72(%rsp)
  32         cltq
  33         movq    %r8, 160(%rdi)
  34         leaq    (%r8,%rax,8), %rax
  35         movq    %rax, 128(%rdi)
  36         movq    %rbx, -8(%rcx)
  37         movq    %rsi, (%rax)
  38         leaq    16(%rsp), %rax
  39         movq    %rax, -64(%rsp)
  40         leaq    -48(%rsp), %rax
  41         movq    %rax, -56(%rsp)
  42         jle     .L1
  43         leal    -1(%rdx), %r8d
  44         leaq    16(%rsp), %rbx
  45         leaq    .L6(%rip), %rsi
  46         movq    %rax, %r11
  47         movl    $24, %r9d
  48         xorl    %eax, %eax
  49         addq    $1, %r8
  50         subq    $48, %rcx
  51         .p2align 4,,10
  52         .p2align 3
  53 .L27:
  54         cmpl    $5, %eax
  55         ja      .L4
  56         movl    %eax, %edx
  57         movslq  (%rsi,%rdx,4), %rdx
  58         addq    %rsi, %rdx
  59         cmpl    $47, %r9d
  60         jmp     *%rdx
  61         .section        .rodata
  62         .align 4
  63         .align 4
  64 .L6:
  65         .long   .L5-.L6
  66         .long   .L7-.L6
  67         .long   .L8-.L6
  68         .long   .L9-.L6
  69         .long   .L10-.L6
  70         .long   .L11-.L6
  71         .text
  72         .p2align 4,,10
  73         .p2align 3
  74 .L4:
  75         cmpl    $47, %r9d
  76         leaq    (%rcx,%rax,8), %rdx
  77         ja      .L25
  78         movl    %r9d, %r10d
  79         addl    $8, %r9d
  80         addq    %r11, %r10
  81 .L26:
  82         movq    (%r10), %r10
  83         movq    %r10, (%rdx)
  84         .p2align 4,,10
  85         .p2align 3
  86 .L14:
  87         addq    $1, %rax
  88         cmpq    %rax, %r8
  89         jne     .L27
  90 .L1:
  91         popq    %rbx
  92         ret
  93 .L10:
  94         ja      .L21
  95         movl    %r9d, %edx
  96         addl    $8, %r9d
  97         addq    %r11, %rdx
  98 .L22:
  99         movq    (%rdx), %rdx
 100         movq    %rdx, 40(%rdi)
 101         jmp     .L14
 102 .L9:
 103         ja      .L19
 104         movl    %r9d, %edx
 105         addl    $8, %r9d
 106         addq    %r11, %rdx
 107 .L20:
 108         movq    (%rdx), %rdx
 109         movq    %rdx, 152(%rdi)
 110         jmp     .L14
 111 .L8:
 112         ja      .L17
 113         movl    %r9d, %edx
 114         addl    $8, %r9d
 115         addq    %r11, %rdx
 116 .L18:
 117         movq    (%rdx), %rdx
 118         movq    %rdx, 136(%rdi)
 119         jmp     .L14
 120 .L5:
 121         ja      .L12
 122         movl    %r9d, %edx
 123         addl    $8, %r9d
 124         addq    %r11, %rdx
 125 .L13:
 126         movq    (%rdx), %rdx
 127         movq    %rdx, 104(%rdi)
 128         jmp     .L14
 129 .L7:
 130         ja      .L15
 131         movl    %r9d, %edx
 132         addl    $8, %r9d
 133         addq    %r11, %rdx
 134 .L16:
 135         movq    (%rdx), %rdx
 136         movq    %rdx, 112(%rdi)
 137         jmp     .L14
 138 .L11:
 139         ja      .L23
 140         movl    %r9d, %edx
 141         addl    $8, %r9d
 142         addq    %r11, %rdx
 143 .L24:
 144         movq    (%rdx), %rdx
 145         movq    %rdx, 48(%rdi)
 146         jmp     .L14
 147 .L25:
 148         movq    %rbx, %r10
 149         addq    $8, %rbx
 150         jmp     .L26
 151 .L21:
 152         movq    %rbx, %rdx
 153         addq    $8, %rbx
 154         jmp     .L22
 155 .L23:
 156         movq    %rbx, %rdx
 157         addq    $8, %rbx
 158         jmp     .L24
 159 .L19:
 160         movq    %rbx, %rdx
 161         addq    $8, %rbx
 162         jmp     .L20
 163 .L12:
 164         movq    %rbx, %rdx
 165         addq    $8, %rbx
 166         jmp     .L13
 167 .L17:
 168         movq    %rbx, %rdx
 169         addq    $8, %rbx
 170         jmp     .L18
 171 .L15:
 172         movq    %rbx, %rdx
 173         addq    $8, %rbx
 174         jmp     .L16
 175         .size   __makecontext, .-__makecontext
 176         .weak   makecontext
 177         .set    makecontext,__makecontext
 178         .hidden __start_context