lld/test/ELF/arm-fix-cortex-a8-plt.s

   1 // REQUIRES: arm
   2 // RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf --arm-add-build-attributes %s -o %t.o
   3 // RUN: echo "SECTIONS { \
   4 // RUN:       .plt  0x2000 : { *(.plt) *(.plt.*) } \
   5 // RUN:       .text : { *(.text) } \
   6 // RUN:       }" > %t.script
   7
   8 // RUN: ld.lld --script %t.script --fix-cortex-a8 --shared -verbose %t.o -o %t2
   9 // RUN: llvm-objdump --no-print-imm-hex -d --start-address=0x2020 --stop-address=0x202c --no-show-raw-insn %t2 | FileCheck --check-prefix=CHECK-PLT %s
  10 // RUN: llvm-objdump --no-print-imm-hex -d --start-address=0x2ffa --stop-address=0x3008 --no-show-raw-insn %t2 | FileCheck %s
  11
  12 /// If we patch a branch instruction that is indirected via the PLT then we
  13 /// must make sure the patch goes via the PLT
  14
  15 // CHECK-PLT:          2020:            add     r12, pc, #0, #12
  16 // CHECK-PLT-NEXT:     2024:            add     r12, r12, #4096
  17 // CHECK-PLT-NEXT:     2028:            ldr     pc, [r12, #68]!
  18
  19  .syntax unified
  20  .thumb
  21
  22  .global external
  23  .type external, %function
  24
  25  .text
  26  .balign 2048
  27
  28  .space 2042
  29  .global source
  30  .thumb_func
  31 source:
  32  nop.w
  33  bl external
  34
  35 // CHECK:      00002ffa <source>:
  36 // CHECK-NEXT:     2ffa:        nop.w
  37 // CHECK-NEXT:     2ffe:        blx     0x3004 <__CortexA8657417_2FFE>
  38 // CHECK:      00003004 <__CortexA8657417_2FFE>:
  39 // CHECK-NEXT:     3004:        b       0x2020