lld/test/ELF/i386-tls-dynamic.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=i686 %s -o %t.o
   3 # RUN: ld.lld -shared %t.o -o %t.so
   4 # RUN: llvm-readobj --sections -r %t.so | FileCheck %s
   5 # RUN: llvm-objdump -d --no-show-raw-insn %t.so | FileCheck %s --check-prefix=DIS
   6
   7 .type tls0,@object
   8 .section .tbss,"awT",@nobits
   9 .globl tls0
  10 .align 4
  11 tls0:
  12  .long 0
  13  .size tls0, 4
  14
  15 .type  tls1,@object
  16 .globl tls1
  17 .align 4
  18 tls1:
  19  .long 0
  20  .size tls1, 4
  21
  22 .type  tls2,@object
  23 .globl tls2
  24 .hidden tls2
  25 .align 4
  26 tls2:
  27  .long 0
  28  .size tls2, 8
  29
  30 .section .text
  31 .globl _start
  32 _start:
  33 leal tls0@tlsgd(,%ebx,1),%eax
  34 call __tls_get_addr@plt
  35
  36 leal tls1@tlsgd(,%ebx,1),%eax
  37 call __tls_get_addr@plt
  38
  39 leal tls2@tlsldm(%ebx),%eax
  40 call __tls_get_addr@plt
  41 leal tls2@dtpoff(%eax),%edx
  42
  43 leal tls2@tlsldm(%ebx),%eax
  44 call __tls_get_addr@plt
  45 leal tls2@dtpoff+4(%eax),%edx
  46
  47 movl %gs:0,%eax
  48 addl tls0@gotntpoff(%ebx),%eax
  49
  50 movl %gs:0,%eax
  51 addl tls1@gotntpoff(%ebx),%eax
  52
  53 # CHECK:      Name: .got (
  54 # CHECK-NEXT: Type: SHT_PROGBITS
  55 # CHECK-NEXT: Flags [
  56 # CHECK-NEXT:   SHF_ALLOC
  57 # CHECK-NEXT:   SHF_WRITE
  58 # CHECK-NEXT: ]
  59 # CHECK-NEXT: Address: 0x2358
  60 # CHECK-NEXT: Offset: 0x358
  61 # CHECK-NEXT: Size: 32
  62 # CHECK-NEXT: Link: 0
  63 # CHECK-NEXT: Info: 0
  64 # CHECK-NEXT: AddressAlignment: 4
  65 # CHECK-NEXT: EntrySize: 0
  66
  67 # CHECK: Relocations [
  68 # CHECK:      Section ({{.+}}) .rel.dyn {
  69 # CHECK-NEXT: 0x2370 R_386_TLS_DTPMOD32 -
  70 # CHECK-NEXT: 0x2358 R_386_TLS_DTPMOD32 tls0
  71 # CHECK-NEXT: 0x235C R_386_TLS_DTPOFF32 tls0
  72 # CHECK-NEXT: 0x2360 R_386_TLS_TPOFF tls0
  73 # CHECK-NEXT: 0x2364 R_386_TLS_DTPMOD32 tls1
  74 # CHECK-NEXT: 0x2368 R_386_TLS_DTPOFF32 tls1
  75 # CHECK-NEXT: 0x236C R_386_TLS_TPOFF tls1
  76 # CHECK-NEXT: }
  77
  78 # DIS:      Disassembly of section .text:
  79 # DIS-EMPTY:
  80 # DIS-NEXT: <_start>:
  81 ## General dynamic model:
  82 ## -4128 and -4116 are first and second GOT entries offsets.
  83 ## Each one is a pair of records.
  84 # DIS-NEXT: 1260:       leal -4128(,%ebx), %eax
  85 # DIS-NEXT: 1267:       calll 0x12d0
  86 # DIS-NEXT: 126c:       leal -4116(,%ebx), %eax
  87 # DIS-NEXT: 1273:       calll 0x12d0
  88 ## Local dynamic model:
  89 ## -16 is a local module tls index offset.
  90 # DIS-NEXT: 1278:       leal -4104(%ebx), %eax
  91 # DIS-NEXT: 127e:       calll 0x12d0
  92 # DIS-NEXT: 1283:       leal 8(%eax), %edx
  93 # DIS-NEXT: 1289:       leal -4104(%ebx), %eax
  94 # DIS-NEXT: 128f:       calll 0x12d0
  95 # DIS-NEXT: 1294:       leal 12(%eax), %edx
  96 ## Initial exec model:
  97 # DIS-NEXT: 129a:       movl %gs:0, %eax
  98 # DIS-NEXT: 12a0:       addl -4120(%ebx), %eax
  99 # DIS-NEXT: 12a6:       movl %gs:0, %eax
 100 # DIS-NEXT: 12ac:       addl -4108(%ebx), %eax