lld/test/ELF/relro-copyrel-bss-script.s

   1 // REQUIRES: x86
   2 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t.o
   3 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/copy-in-shared.s -o %t2.o
   4 // RUN: ld.lld -shared -soname=t.so %t.o %t2.o -z separate-code -o %t.so
   5
   6 // A linker script that will map .bss.rel.ro into .bss.
   7 // RUN: echo "SECTIONS { \
   8 // RUN: .bss : { *(.bss) *(.bss.*) } \
   9 // RUN: } " > %t.script
  10
  11 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3.o
  12 // RUN: ld.lld %t3.o %t.so -z relro -z separate-code -o %t --script=%t.script 2>&1
  13 // RUN: llvm-readelf -l %t | FileCheck %s
  14         .section .text, "ax", @progbits
  15         .global bar
  16         .global foo
  17         .global _start
  18 _start:
  19         callq bar
  20         // Will produce .bss.rel.ro that will match in .bss, this will lose
  21         // the relro property of the copy relocation.
  22         .quad foo
  23
  24         // Non relro bss
  25         .bss
  26         // make large enough to affect PT_GNU_RELRO MemSize if this was marked
  27         // as relro.
  28         .space 0x2000
  29
  30 // CHECK: Type      Offset   VirtAddr           PhysAddr           FileSiz  MemSiz   Flg Align
  31 // CHECK: GNU_RELRO 0x002150 0x0000000000000150 0x0000000000000150 0x000100 0x000100 R   0x1