lld/test/ELF/linkerscript/arm-exidx-sentinel-and-assignment.s

   1 # REQUIRES: arm
   2 # RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
   3 # RUN: echo "SECTIONS {                                        \
   4 # RUN:         .ARM.exidx 0x1000 : { *(.ARM.exidx*) foo = .; } \
   5 # RUN:         .text      0x2000 : { *(.text*) }               \
   6 # RUN:       }" > %t.script
   7 ## We used to crash if the last output section command for .ARM.exidx
   8 ## was anything but an input section description.
   9 # RUN: ld.lld --no-merge-exidx-entries -T %t.script %t.o -shared -o %t.so
  10 # RUN: llvm-objdump -s --triple=armv7a-none-linux-gnueabi %t.so | FileCheck %s
  11 # RUN: llvm-readobj -S --symbols %t.so | FileCheck %s --check-prefix=SYMBOL
  12
  13  .syntax unified
  14  .text
  15  .global _start
  16 _start:
  17  .fnstart
  18  .cantunwind
  19  bx lr
  20  .fnend
  21
  22 # CHECK: Contents of section .ARM.exidx:
  23 # 1000 + 1000 = 0x2000 = _start
  24 # 1008 + 0ffc = 0x2004 = _start + sizeof(_start)
  25 # CHECK-NEXT: 1000 00100000 01000000 fc0f0000 01000000
  26
  27 # SYMBOL:       Section {
  28 # SYMBOL:         Name: .ARM.exidx
  29 # SYMBOL-NEXT:    Type: SHT_ARM_EXIDX
  30 # SYMBOL-NEXT:    Flags [
  31 # SYMBOL-NEXT:      SHF_ALLOC
  32 # SYMBOL-NEXT:      SHF_LINK_ORDER
  33 # SYMBOL-NEXT:    ]
  34 # SYMBOL-NEXT:    Address: 0x1000
  35 # SYMBOL-NEXT:    Offset:
  36 # SYMBOL-NEXT:    Size: 16
  37
  38 # Symbol 'foo' is expected to point at the end of the section.
  39 # SYMBOL:       Symbol {
  40 # SYMBOL:         Name: foo
  41 # SYMBOL-NEXT:    Value: 0x1010