lld/test/ELF/protected-data-access.s

   1 # REQUIRES: x86
   2
   3 ## Disallow copy relocation if the symbol is defined as protected in a DSO.
   4
   5 # RUN: llvm-mc -triple x86_64-pc-linux -filetype=obj %p/Inputs/protected-data-access.s -o %t2.o
   6 # RUN: ld.lld %t2.o -o %t2.so -shared
   7 # RUN: llvm-mc -triple x86_64-pc-linux -filetype=obj %s -o %t.o
   8
   9 # RUN: not ld.lld %t.o %t2.so -o /dev/null 2>&1 | FileCheck --check-prefix=ERR %s
  10 # ERR: error: cannot preempt symbol: foo
  11
  12 ## Allow that if --ignore-data-address-equality is specified.
  13
  14 # RUN: ld.lld --ignore-data-address-equality %t.o %t2.so -o %t
  15 # RUN: llvm-readobj --dyn-symbols --relocations %t | FileCheck %s
  16
  17 # CHECK: R_X86_64_COPY foo 0x0
  18
  19 # CHECK:      Name: foo
  20 # CHECK-NEXT: Value:
  21 # CHECK-NEXT: Size: 8
  22 # CHECK-NEXT: Binding: Global
  23 # CHECK-NEXT: Type: Object
  24 # CHECK-NEXT: Other:
  25 # CHECK-NEXT: Section: .bss.rel.ro
  26
  27 .global _start
  28 _start:
  29   .quad foo
  30