lld/test/ELF/arm-fix-cortex-a8-thunk-align.s

   1 // REQUIRES: arm
   2 // RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf --arm-add-build-attributes %s -o %t.o
   3 // RUN: ld.lld --fix-cortex-a8 --shared %t.o -o %t2
   4 // RUN: llvm-objdump -d --no-show-raw-insn %t2 | FileCheck %s
   5
   6 /// Test case that for an OutputSection larger than the ThunkSectionSpacing
   7 /// --fix-cortex-a8 will cause the size of the ThunkSection to be rounded up to
   8 /// the nearest 4KiB
   9  .thumb
  10
  11  .section .text.01, "ax", %progbits
  12  .balign 4096
  13  .globl _start
  14  .type _start, %function
  15 _start:
  16   /// state change thunk required
  17   b.w arm_func
  18 thumb_target:
  19   .space 4096 - 10
  20   /// erratum patch needed
  21   nop.w
  22   b.w thumb_target
  23
  24 /// Expect thunk and patch to be inserted here
  25 // CHECK:  00012004 <__ThumbV7PILongThunk_arm_func>:
  26 // CHECK-NEXT: 12004: movw    r12, #4088
  27 // CHECK-NEXT:        movt    r12, #256
  28 // CHECK-NEXT:        add     r12, pc
  29 // CHECK-NEXT:        bx      r12
  30 // CHECK:  00013004 <__CortexA8657417_11FFE>:
  31 // CHECK-NEXT: 13004: b.w     0x11004 <thumb_target>
  32  .section .text.02
  33  /// Take us over thunk section spacing
  34  .space 16 * 1024 * 1024
  35
  36  .section .text.03, "ax", %progbits
  37  .arm
  38  .balign 4
  39  .type arm_func, %function
  40 arm_func:
  41   bx lr