lld/test/ELF/arm-tls-ldm32.s

   1 // REQUIRES: arm
   2 // RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
   3 // RUN: ld.lld %t.o -o %t.so -shared
   4 // RUN: llvm-readobj -S --dyn-relocations %t.so | FileCheck --check-prefix=SEC %s
   5 // RUN: llvm-objdump -d --triple=armv7a-linux-gnueabi %t.so | FileCheck %s
   6 // RUN: ld.lld %t.o -o %t
   7 // RUN: llvm-objdump -d --triple=armv7a-linux-gnueabi %t | FileCheck --check-prefix=CHECK-EXE %s
   8
   9 /// Test the handling of the local-dynamic TLS model. Dynamic loader finds
  10 /// module index R_ARM_TLS_DTPMOD32. The offset in the next GOT slot is 0
  11 /// The R_ARM_TLS_LDO is the offset of the variable within the TLS block.
  12  .global __tls_get_addr
  13  .text
  14  .p2align  2
  15  .global _start
  16  .syntax unified
  17  .arm
  18  .type   _start, %function
  19 _start:
  20 .L0:
  21  nop
  22
  23  .word   x(tlsldm) + (. - .L0 - 8)
  24  .word   x(tlsldo)
  25  .word   y(tlsldo)
  26
  27  .section        .tbss,"awT",%nobits
  28  .p2align  2
  29  .type   y, %object
  30 y:
  31  .space  4
  32  .section        .tdata,"awT",%progbits
  33  .p2align  2
  34  .type   x, %object
  35 x:
  36  .word   10
  37
  38 // SEC:      Name: .tdata
  39 // SEC-NEXT: Type: SHT_PROGBITS
  40 // SEC-NEXT: Flags [
  41 // SEC-NEXT:   SHF_ALLOC
  42 // SEC-NEXT:   SHF_TLS
  43 // SEC-NEXT:   SHF_WRITE
  44 // SEC-NEXT: ]
  45 // SEC-NEXT: Address: 0x201D0
  46 // SEC:    Size: 4
  47 // SEC:    Name: .tbss
  48 // SEC-NEXT: Type: SHT_NOBITS (0x8)
  49 // SEC-NEXT: Flags [
  50 // SEC-NEXT:   SHF_ALLOC
  51 // SEC-NEXT:   SHF_TLS
  52 // SEC-NEXT:   SHF_WRITE
  53 // SEC-NEXT: ]
  54 // SEC-NEXT: Address: 0x201D4
  55 // SEC:      Size: 4
  56
  57 // SEC: Dynamic Relocations {
  58 // SEC-NEXT:  0x20224 R_ARM_TLS_DTPMOD32 -
  59
  60 // CHECK: Disassembly of section .text:
  61 // CHECK-EMPTY:
  62 // CHECK-NEXT: <_start>:
  63 // CHECK-NEXT: 101c0:       e320f000        nop
  64
  65 /// (0x20224 - 0x101c4) + (0x101c4 - 0x101c0 - 8) = 0x1005c
  66 // CHECK:      101c4:       5c 00 01 00
  67 // CHECK-NEXT: 101c8:       00 00 00 00
  68 // CHECK-NEXT: 101cc:       04 00 00 00
  69
  70 // CHECK-EXE:      <_start>:
  71 // CHECK-EXE-NEXT:   20114:       e320f000        nop
  72 // CHECK-EXE:        20118:       0c 00 01 00
  73 // CHECK-EXE-NEXT:   2011c:       00 00 00 00
  74 // CHECK-EXE-NEXT:   20120:       04 00 00 00