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

   1 # REQUIRES: x86
   2
   3 ## Don't create a canonical PLT if the symbol is defined as protected in a DSO,
   4 ## because thay may break pointer equality.
   5
   6 # RUN: echo '.globl foo; .protected foo; .type foo,@function; foo:' | \
   7 # RUN:   llvm-mc -filetype=obj -triple=x86_64 - -o %t2.o
   8 # RUN: ld.lld %t2.o -o %t2.so -shared -soname=so
   9 # RUN: llvm-mc -triple x86_64-pc-linux -filetype=obj %s -o %t.o
  10
  11 # RUN: not ld.lld %t.o %t2.so -o /dev/null 2>&1 | FileCheck --check-prefix=ERR %s
  12 # ERR: error: cannot preempt symbol: foo
  13
  14 # RUN: ld.lld --ignore-function-address-equality %t.o %t2.so -o %t
  15 # RUN: llvm-readobj --dyn-symbols --relocations %t | FileCheck %s
  16
  17 # Check that we have a relocation and an undefined symbol with a non zero address
  18
  19 # CHECK: R_X86_64_JUMP_SLOT foo 0x0
  20
  21 # CHECK:      Name: foo
  22 # CHECK-NEXT: Value: 0x20{{.*}}
  23 # CHECK-NEXT: Size:
  24 # CHECK-NEXT: Binding: Global
  25 # CHECK-NEXT: Type: Function
  26 # CHECK-NEXT: Other:
  27 # CHECK-NEXT: Section: Undefined
  28
  29 .global _start
  30 _start:
  31   .quad foo
  32