ld/testsuite/ld-x86-64/tlsdesc.s

   1         /* Force .data aligned to 4K, so .got very likely gets at 0x102190
   2            (0x60 bytes .tdata and 0x130 bytes .dynamic)  */
   3         .data
   4         .balign 4096
   5         .section ".tdata", "awT", @progbits
   6         .globl sg1, sg2, sg3, sg4, sg5, sg6, sg7, sg8
   7         .globl sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
   8         .hidden sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
   9 sg1:    .long 17
  10 sg2:    .long 18
  11 sg3:    .long 19
  12 sg4:    .long 20
  13 sg5:    .long 21
  14 sg6:    .long 22
  15 sg7:    .long 23
  16 sg8:    .long 24
  17 sl1:    .long 65
  18 sl2:    .long 66
  19 sl3:    .long 67
  20 sl4:    .long 68
  21 sl5:    .long 69
  22 sl6:    .long 70
  23 sl7:    .long 71
  24 sl8:    .long 72
  25 sh1:    .long 257
  26 sh2:    .long 258
  27 sh3:    .long 259
  28 sh4:    .long 260
  29 sh5:    .long 261
  30 sh6:    .long 262
  31 sh7:    .long 263
  32 sh8:    .long 264
  33         /* Force .text aligned to 4K, so it very likely gets at 0x1000.  */
  34         .text
  35         .balign 4096
  36         .globl  fn1
  37         .type   fn1,@function
  38 fn1:
  39         pushq   %rbp
  40         movq    %rsp, %rbp
  41         nop;nop;nop;nop
  42
  43         /* GD */
  44         leaq    sg1@tlsdesc(%rip), %rax
  45         call    *sg1@tlscall(%rax)
  46         nop;nop;nop;nop
  47
  48         /* GD -> IE because variable is referenced through IE too */
  49         leaq    sg2@tlsdesc(%rip), %rax
  50         call    *sg2@tlscall(%rax)
  51         nop;nop;nop;nop
  52
  53         /* GD against local variable */
  54         leaq    sl1@tlsdesc(%rip), %rax
  55         call    *sl1@tlscall(%rax)
  56         nop;nop;nop;nop
  57
  58         /* GD -> IE against local variable referenced through IE too */
  59         leaq    sl2@tlsdesc(%rip), %rax
  60         call    *sl2@tlscall(%rax)
  61         nop;nop;nop;nop
  62
  63         /* GD against hidden and local variable */
  64         leaq    sh1@tlsdesc(%rip), %rax
  65         call    *sh1@tlscall(%rax)
  66         nop;nop;nop;nop
  67
  68         /* GD -> IE against hidden and local variable referenced through
  69            IE too */
  70         leaq    sh2@tlsdesc(%rip), %rax
  71         call    *sh2@tlscall(%rax)
  72         nop;nop;nop;nop
  73
  74         /* GD against hidden but not local variable */
  75         leaq    sH1@tlsdesc(%rip), %rax
  76         call    *sH1@tlscall(%rax)
  77         nop;nop;nop;nop
  78
  79         /* GD -> IE against hidden but not local variable referenced through
  80            IE too */
  81         leaq    sH2@tlsdesc(%rip), %rax
  82         call    *sH2@tlscall(%rax)
  83         nop;nop;nop;nop
  84
  85         /* LD */
  86         leaq    _TLS_MODULE_BASE_@tlsdesc(%rip), %rax
  87         call    *_TLS_MODULE_BASE_@tlscall(%rax)
  88         nop;nop
  89         leaq    sl1@dtpoff(%rax), %rdx
  90         nop;nop
  91         leaq    2+sl2@dtpoff(%rax), %r9
  92         nop;nop;nop;nop
  93
  94         /* LD against hidden and local variables */
  95         leaq    sh1@dtpoff(%rax), %rdx
  96         nop;nop
  97         leaq    sh2@dtpoff+3(%rax), %rcx
  98         nop;nop;nop;nop
  99
 100         /* LD against hidden but not local variables */
 101         leaq    sH1@dtpoff(%rax), %r12
 102         nop;nop
 103         leaq    sH2@dtpoff+1(%rax), %rcx
 104         nop;nop
 105
 106         /* IE against global var  */
 107         movq    %fs:0, %rcx
 108         nop;nop
 109         addq    sg2@gottpoff(%rip), %rcx
 110         nop;nop;nop;nop
 111
 112         /* IE against local var  */
 113         movq    %fs:0, %r14
 114         nop;nop
 115         addq    sl2@gottpoff(%rip), %r14
 116         nop;nop;nop;nop
 117
 118         /* IE against hidden and local var  */
 119         movq    %fs:0, %rcx
 120         nop;nop
 121         addq    sh2@gottpoff(%rip), %rcx
 122         nop;nop;nop;nop
 123
 124         /* IE against hidden but not local var  */
 125         movq    %fs:0, %rcx
 126         nop;nop
 127         addq    sH2@gottpoff(%rip), %rcx
 128         nop;nop;nop;nop
 129
 130         /* Direct access through %fs  */
 131
 132         /* IE against global var  */
 133         movq    sg5@gottpoff(%rip), %rcx
 134         nop;nop
 135         movq    %fs:(%rcx), %rdx
 136         nop;nop;nop;nop
 137
 138         /* IE against local var  */
 139         movq    sl5@gottpoff(%rip), %r10
 140         nop;nop
 141         movq    %fs:(%r10), %r12
 142         nop;nop;nop;nop
 143
 144         /* IE against hidden and local var  */
 145         movq    sh5@gottpoff(%rip), %rdx
 146         nop;nop
 147         movq    %fs:(%rdx), %rdx
 148         nop;nop;nop;nop
 149
 150         /* IE against hidden but not local var  */
 151         movq    sH5@gottpoff(%rip), %rcx
 152         nop;nop
 153         movq    %fs:(%rcx), %rdx
 154         nop;nop;nop;nop
 155
 156         leave
 157         ret