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

   1         /* Force .data aligned to 4K, so that .got very likely gets at
   2            0x5021a0 (0x60 bytes .tdata and 0x140 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 0x401000.  */
  34         .text
  35         .balign 4096
  36         .globl  fn2
  37         .type   fn2,@function
  38 fn2:
  39         pushq   %rbp
  40         movq    %rsp, %rbp
  41
  42         /* GD -> IE because variable is not defined in executable */
  43         leaq    sG1@tlsdesc(%rip), %rax
  44         call    *sG1@tlscall(%rax)
  45         nop;nop;nop;nop
  46
  47         /* GD -> IE because variable is not defined in executable where
  48            the 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 -> LE with global variable defined in executable */
  54         leaq    sg1@tlsdesc(%rip), %rax
  55         call    *sg1@tlscall(%rax)
  56         nop;nop;nop;nop
  57
  58         /* GD -> LE with local variable defined in executable */
  59         leaq    sl1@tlsdesc(%rip), %rax
  60         call    *sl1@tlscall(%rax)
  61         nop;nop;nop;nop
  62
  63         /* GD -> LE with hidden variable defined in executable */
  64         leaq    sh1@tlsdesc(%rip), %rax
  65         call    *sh1@tlscall(%rax)
  66         nop;nop;nop;nop
  67
  68         /* LD -> LE */
  69         leaq    _TLS_MODULE_BASE_@tlsdesc(%rip), %rax
  70         call    *_TLS_MODULE_BASE_@tlscall(%rax)
  71         nop;nop
  72         leaq    1+sl1@dtpoff(%rax), %rdx
  73         nop;nop
  74         leaq    sl2@dtpoff+2(%rax), %r9
  75         nop;nop;nop;nop
  76
  77         /* LD -> LE against hidden variables */
  78         leaq    sh1@dtpoff(%rax), %rdx
  79         nop;nop
  80         leaq    3+sh2@dtpoff(%rax), %rcx
  81         nop;nop;nop;nop
  82
  83         /* IE against global var  */
  84         movq    %fs:0, %r9
  85         nop;nop
  86         addq    sG2@gottpoff(%rip), %r9
  87         nop;nop;nop;nop
  88
  89         /* IE -> LE against global var defined in exec */
  90         movq    %fs:0, %r10
  91         nop;nop
  92         addq    sg1@gottpoff(%rip), %r10
  93         nop;nop;nop;nop
  94
  95         /* IE -> LE against local var */
  96         movq    %fs:0, %rax
  97         nop;nop
  98         addq    sl1@gottpoff(%rip), %rax
  99         nop;nop;nop;nop
 100
 101         /* IE -> LE against hidden var */
 102         movq    %fs:0, %rcx
 103         nop;nop
 104         addq    sh1@gottpoff(%rip), %rcx
 105         nop;nop;nop;nop
 106
 107         /* Direct access through %fs  */
 108
 109         /* IE against global var  */
 110         movq    sG5@gottpoff(%rip), %rcx
 111         nop;nop
 112         movq    %fs:(%rcx), %rdx
 113         nop;nop;nop;nop
 114
 115         /* IE->LE against local var  */
 116         movq    sl5@gottpoff(%rip), %r11
 117         nop;nop
 118         movq    %fs:(%r11), %r12
 119         nop;nop;nop;nop
 120
 121         /* IE->LE against hidden var  */
 122         movq    sh5@gottpoff(%rip), %rdx
 123         nop;nop
 124         movq    %fs:(%rdx), %rdx
 125         nop;nop;nop;nop
 126
 127         leave
 128         ret