lld/test/ELF/arm-exidx-partial-discard.s

   1 // REQUIRES: arm
   2 // RUN: llvm-mc -filetype=obj -triple arm-gnu-linux-eabi -mcpu cortex-a7 -arm-add-build-attributes %s -o %t.o
   3 // RUN: echo "SECTIONS { . = 0x10000; .text : { *(.text) } /DISCARD/ : { *(.exit.text) } }" > %t.script
   4 // RUN: ld.lld -T %t.script %t.o -o %t.elf
   5 // RUN: llvm-readobj -x .ARM.exidx --sections %t.elf | FileCheck %s
   6
   7 // CHECK-NOT: .exit.text
   8 /// Expect 2 entries both CANTUNWIND as the .ARM.exidx.exit.text
   9 // should have been removed.
  10 // CHECK: Hex dump of section '.ARM.exidx':
  11 // CHECK-NEXT: 0x00010000 10000000 01000000 10000000 01000000
  12
  13 /// The /DISCARD/ is evaluated after sections have been assigned to the
  14 /// .ARM.exidx synthetic section. We must account for the /DISCARD/
  15  .section .exit.text, "ax", %progbits
  16  .globl foo
  17  .type foo, %function
  18 foo:
  19  .fnstart
  20  bx lr
  21  .save {r7, lr}
  22  .setfp r7, sp, #0
  23  .fnend
  24
  25  .text
  26  .globl _start
  27  .type _start, %function
  28 _start:
  29  .fnstart
  30  bx lr
  31  .cantunwind
  32  .fnend
  33
  34  .section .text.__aeabi_unwind_cpp_pr0, "ax", %progbits
  35  .global __aeabi_unwind_cpp_pr0
  36 __aeabi_unwind_cpp_pr0:
  37  bx lr