lld/test/ELF/x86-64-tls-ie.s

   1 // REQUIRES: x86
   2 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
   3 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/tls-got.s -o %t2.o
   4 // RUN: ld.lld -shared %t2.o -soname=so -o %t2.so
   5 // RUN: ld.lld -e main %t1.o %t2.so -o %t3
   6 // RUN: llvm-readobj -S -r %t3 | FileCheck %s
   7 // RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t3 | FileCheck --check-prefix=DISASM %s
   8
   9 // CHECK:      Section {
  10 // CHECK:      Index: 9
  11 // CHECK-NEXT: Name: .got
  12 // CHECK-NEXT: Type: SHT_PROGBITS
  13 // CHECK-NEXT: Flags [
  14 // CHECK-NEXT:   SHF_ALLOC
  15 // CHECK-NEXT:   SHF_WRITE
  16 // CHECK-NEXT: ]
  17 // CHECK-NEXT: Address: [[ADDR:.*]]
  18 // CHECK-NEXT: Offset: 0x3F0
  19 // CHECK-NEXT: Size: 16
  20 // CHECK-NEXT: Link: 0
  21 // CHECK-NEXT: Info: 0
  22 // CHECK-NEXT: AddressAlignment: 8
  23 // CHECK-NEXT: EntrySize: 0
  24 // CHECK-NEXT: }
  25
  26 // CHECK:      Relocations [
  27 // CHECK-NEXT:   Section (5) .rela.dyn {
  28 // CHECK-NEXT:     [[ADDR]] R_X86_64_TPOFF64 tls1 0x0
  29 // CHECK-NEXT:     0x2023F8 R_X86_64_TPOFF64 tls0 0x0
  30 // CHECK-NEXT:   }
  31 // CHECK-NEXT: ]
  32
  33 /// 0x2023F0 - 0x201307 = 4329
  34 /// 0x2023F8 - 0x201311 = 4327
  35 /// 0x2023F8 - 0x20131b = 4317
  36 // DISASM:      Disassembly of section .text:
  37 // DISASM-EMPTY:
  38 // DISASM-NEXT: <main>:
  39 // DISASM-NEXT:         movq 4329(%rip), %rax
  40 // DISASM-NEXT: 201307: movl %fs:(%rax), %eax
  41 // DISASM-NEXT:         movq 4327(%rip), %rax
  42 // DISASM-NEXT: 201311: movl %fs:(%rax), %eax
  43 // DISASM-NEXT:         movq 4317(%rip), %rax
  44 // DISASM-NEXT: 20131b: movl %fs:(%rax), %eax
  45
  46 /// 0x2023F0 - 0x20132e = 4290
  47 // DISASM-NEXT:         movq %fs:0, %rax
  48 // DISASM-NEXT:         addq 4290(%rip), %rax
  49 // DISASM-NEXT: 20132e: retq
  50
  51 .section .tdata,"awT",@progbits
  52
  53 .text
  54  .globl main
  55  .align 16, 0x90
  56  .type main,@function
  57 main:
  58  movq tls1@GOTTPOFF(%rip), %rax
  59  movl %fs:0(%rax), %eax
  60  movq tls0@GOTTPOFF(%rip), %rax
  61  movl %fs:0(%rax), %eax
  62  movq tls0@GOTTPOFF(%rip), %rax
  63  movl %fs:0(%rax), %eax
  64
  65 ## Relaxed to TLS IE. Share the GOT entry with GOTTPOFF.
  66  .byte   0x66
  67  leaq    tls1@tlsgd(%rip), %rdi
  68  .value  0x6666
  69  rex64
  70  call    __tls_get_addr@PLT
  71  ret