lld/test/ELF/arm-rwpi-debug-relocs.s

   1 /// Test that R_ARM_SBREL32 relocations in debug info are relocated as if the
   2 /// static base register (r9) is zero. Real DWARF info will use an expression to
   3 /// add this to the real value of the static base at runtime.
   4
   5 // REQUIRES: arm
   6 // RUN: rm -rf %t && split-file %s %t && cd %t
   7
   8 // RUN: llvm-mc -filetype=obj -triple=armv7a asm.s -o obj.o
   9 // RUN: ld.lld -T lds.ld obj.o -o exe.elf 2>&1 | FileCheck %s --implicit-check-not=warning: --allow-empty
  10 // RUN: llvm-objdump -D exe.elf | FileCheck --check-prefix=DISASM %s
  11
  12 // DISASM-LABEL: <rw>:
  13 // DISASM-NEXT:      1000: 0000002a
  14
  15 // DISASM-LABEL: <rw2>:
  16 // DISASM-NEXT:      2000: 000004d2
  17
  18 // DISASM-LABEL: <.debug_something>:
  19 // DISASM-NEXT:         0: 00001000
  20 // DISASM-NEXT:        ...
  21 // DISASM-NEXT:       104: 00002000
  22
  23 //--- lds.ld
  24 SECTIONS {
  25   data1 0x1000 : { *(data1) }
  26   data2 0x2000 : { *(data2) }
  27 }
  28
  29 //--- asm.s
  30   .text
  31   .type _start,%function
  32   .globl  _start
  33 _start:
  34   bx lr
  35   .size _start, .-_start
  36
  37   .section data1, "aw", %progbits
  38   .type rw,%object
  39   .globl  rw
  40 rw:
  41   .long 42
  42   .size rw, 4
  43
  44   .section data2, "aw", %progbits
  45   .type rw2,%object
  46   .globl  rw2
  47 rw2:
  48   .long 1234
  49   .size rw2, 4
  50
  51   .section  .debug_something, "", %progbits
  52   .long rw(sbrel)
  53   .space 0x100
  54   .long rw2(sbrel)