lld/test/ELF/undef-with-plt-addr.s

   1 // REQUIRES: x86
   2 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
   3 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/undef-with-plt-addr.s -o %t2.o
   4 // RUN: ld.lld %t2.o -o %t2.so -shared -soname=so
   5 // RUN: ld.lld %t.o %t2.so -o %t3
   6 // RUN: llvm-readobj --symbols -S -r %t3 | FileCheck %s
   7
   8 // Test that -z nocopyreloc doesn't prevent the plt hack.
   9 // RUN: ld.lld %t.o %t2.so -o %t3 -z nocopyreloc
  10
  11 .globl _start
  12 _start:
  13 movabsq $set_data, %rax
  14
  15 .data
  16 .quad foo
  17 // Test that set_data has an address in the .plt, but foo is not
  18
  19 // CHECK:      Name: .plt
  20 // CHECK-NEXT: Type: SHT_PROGBITS
  21 // CHECK-NEXT: Flags [
  22 // CHECK-NEXT:   SHF_ALLOC
  23 // CHECK-NEXT:   SHF_EXECINSTR
  24 // CHECK-NEXT: ]
  25 // CHECK-NEXT: Address: 0x2012E0
  26
  27 // CHECK:      Section ({{.*}}) .rela.dyn {
  28 // CHECK-NEXT:   0x203400 R_X86_64_64 foo 0x0
  29 // CHECK-NEXT: }
  30 // CHECK-NEXT: Section ({{.*}}) .rela.plt {
  31 // CHECK-NEXT:   0x203420 R_X86_64_JUMP_SLOT set_data 0x0
  32 // CHECK-NEXT: }
  33
  34 // CHECK:      Name:    set_data
  35 // CHECK-NEXT: Value:   0x2012F0
  36 // CHECK-NEXT: Size: 0
  37 // CHECK-NEXT: Binding: Global
  38 // CHECK-NEXT: Type: Function
  39 // CHECK-NEXT: Other: 0
  40 // CHECK-NEXT: Section: Undefined
  41
  42 // CHECK:      Name: foo
  43 // CHECK-NEXT: Value: 0x0
  44 // CHECK-NEXT: Size: 0
  45 // CHECK-NEXT: Binding: Global
  46 // CHECK-NEXT: Type: Function
  47 // CHECK-NEXT: Other: 0
  48 // CHECK-NEXT: Section: Undefined