lld/test/ELF/arm-target2.s

   1 // REQUIRES: arm
   2 // RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
   3 // RUN: ld.lld %t.o -o %t
   4 // RUN: llvm-objdump -s --triple=armv7a-none-linux-gnueabi %t | FileCheck %s
   5 // RUN: ld.lld %t.o --target2=got-rel -o %t2
   6 // RUN: llvm-objdump -s --triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s
   7 // RUN: ld.lld %t.o --target2=abs -o %t3
   8 // RUN: llvm-objdump -s --triple=armv7a-none-linux-gnueabi %t3 | FileCheck --check-prefix=CHECK-ABS %s
   9 // RUN: ld.lld %t.o --target2=rel -o %t4
  10 // RUN: llvm-objdump -s --triple=armv7a-none-linux-gnueabi %t4 | FileCheck --check-prefix=CHECK-REL %s
  11
  12 // The R_ARM_TARGET2 is present in .ARM.extab sections. It can be handled as
  13 // either R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. For ARM linux the default
  14 // is R_ARM_GOT_PREL. The other two options are primarily used for bare-metal,
  15 // they can be selected with the --target2=abs or --target2=rel option.
  16  .syntax unified
  17  .text
  18  .globl _start
  19  .align 2
  20 _start:
  21  .type function, %function
  22  .fnstart
  23  bx lr
  24  .personality   __gxx_personality_v0
  25  .handlerdata
  26  .word  _ZTIi(TARGET2)
  27  .text
  28  .fnend
  29  .global __gxx_personality_v0
  30  .type function, %function
  31 __gxx_personality_v0:
  32  bx lr
  33
  34  .rodata
  35 _ZTIi:  .word 0
  36
  37 // CHECK: Contents of section .ARM.extab:
  38 // 0x1012c + 0x2010 = 0x1213c = .got
  39 // CHECK-NEXT:  10124 14000100 b0b0b000 10000200
  40
  41 // CHECK-ABS: Contents of section .ARM.extab:
  42 // 0x100f0 = .rodata
  43 // CHECK-ABS-NEXT: 100e4 14000100 b0b0b000 f0000100
  44
  45 // CHECK-REL: Contents of section .ARM.extab:
  46 // 0x100ec + 4 = 0x100f0 = .rodata
  47 // CHECK-REL-NEXT: 100e4 14000100 b0b0b000 04000000
  48
  49 // CHECK: Contents of section .rodata:
  50 // CHECK-NEXT: 10130 00000000
  51
  52 // CHECK-ABS: Contents of section .rodata:
  53 // CHECK-ABS-NEXT: 100f0 00000000
  54
  55 // CHECK-REL: Contents of section .rodata:
  56 // CHECK-REL-NEXT: 100f0 00000000
  57
  58 // CHECK: Contents of section .got:
  59 // 10130 = _ZTIi
  60 // CHECK-NEXT: 3013c 30010100