lld/test/ELF/arm-thumb-interwork-abs.s

   1 // REQUIRES: arm
   2 // RUN: llvm-mc --triple=armv7a-linux-gnueabihf -arm-add-build-attributes -filetype=obj -o %t.o %s
   3 // RUN: ld.lld %t.o --defsym sym=0x13001 -o %t 2>&1 | FileCheck %s --check-prefix=WARN
   4 // RUN: llvm-objdump --no-show-raw-insn -d %t | FileCheck %s
   5
   6 /// A similar test to arm-thumb-interwork-notfunc.s this time exercising the
   7 /// case where a symbol does not have type STT_FUNC but it does have the bottom
   8 /// bit set. We use absolute symbols to represent assembler labels as the
   9 /// minimum alignment of a label in code is 2.
  10 .syntax unified
  11 .global sym
  12 .global _start
  13 .type _start, %function
  14 .text
  15 .balign 0x1000
  16 _start:
  17 arm_caller:
  18 .arm
  19   b sym
  20   bl sym
  21 // WARN: branch and link relocation: R_ARM_CALL to non STT_FUNC symbol: sym interworking not performed; consider using directive '.type sym, %function' to give symbol type STT_FUNC if interworking between ARM and Thumb is required
  22   blx sym
  23 .thumb
  24 thumb_caller:
  25   b sym
  26   bl sym
  27   blx sym
  28 // WARN: branch and link relocation: R_ARM_THM_CALL to non STT_FUNC symbol: sym interworking not performed; consider using directive '.type sym, %function' to give symbol type STT_FUNC if interworking between ARM and Thumb is required
  29
  30 // CHECK: 00021000 <arm_caller>:
  31 // CHECK-NEXT:    21000: b       0x13000
  32 // CHECK-NEXT:    21004: bl      0x13000
  33 // CHECK-NEXT:    21008: blx     0x13000
  34
  35 // CHECK: 0002100c <thumb_caller>:
  36 // CHECK-NEXT:    2100c: b.w     0x13000
  37 // CHECK-NEXT:    21010: bl      0x13000
  38 // CHECK-NEXT:    21014: blx     0x13004