lld/test/ELF/copy-rel-alias.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t && split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/1.s -o %t/1.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/2.s -o %t/2.o
   5 # RUN: ld.lld -shared -soname=t2 %t/2.o -o %t/2.so
   6 # RUN: ld.lld %t/1.o %t/2.so -o %t/1
   7 # RUN: llvm-readelf -S -r --dyn-syms %t/1 | FileCheck %s
   8 # RUN: ld.lld --gc-sections -pie %t/1.o %t/2.so -o %t/1
   9 # RUN: llvm-readelf -S -r --dyn-syms %t/1 | FileCheck %s
  10
  11 # CHECK: [[#BSS:]]] .bss
  12
  13 # CHECK:      R_X86_64_COPY     [[#%x,]] a1 + 0
  14 # CHECK-NEXT: R_X86_64_GLOB_DAT [[#%x,]] b1 + 0
  15 # CHECK-NEXT: R_X86_64_COPY     [[#%x,]] b1 + 0
  16 # CHECK-NEXT: R_X86_64_GLOB_DAT [[#%x,]] a2 + 0
  17
  18 # CHECK:         Value        Size Type    Bind   Vis     Ndx      Name
  19 # CHECK:      [[#%x,ADDR:]]      1 OBJECT  GLOBAL DEFAULT [[#BSS]] a1
  20 # CHECK-NEXT: {{0*}}[[#ADDR+1]]  1 OBJECT  WEAK   DEFAULT [[#BSS]] b1
  21 # CHECK-NEXT: {{0*}}[[#ADDR+1]]  1 OBJECT  GLOBAL DEFAULT [[#BSS]] b2
  22 # CHECK-NEXT: {{0*}}[[#ADDR]]    1 OBJECT  WEAK   DEFAULT [[#BSS]] a2
  23 # CHECK-NEXT: {{0*}}[[#ADDR+1]]  1 OBJECT  GLOBAL DEFAULT [[#BSS]] b3
  24
  25 #--- 1.s
  26 .global _start
  27 _start:
  28 movl $5, a1
  29 mov $b1 - ., %eax
  30 mov $b2 - ., %eax
  31
  32 ## Test that a copy relocated alias may have GOT entry.
  33 .weak a2, b1
  34 movq a2@gotpcrel(%rip), %rax
  35 movq b1@gotpcrel(%rip), %rcx
  36
  37 #--- 2.s
  38 .data
  39
  40 .globl a1, b3
  41 .weak a2, b1, b2
  42
  43 .type a1, @object
  44 .type a2, @object
  45 a1:
  46 a2:
  47 .byte 1
  48 .size a1, 1
  49 .size a2, 1
  50
  51 .type b1, @object
  52 .type b2, @object
  53 .type b3, @object
  54 b1:
  55 b2:
  56 b3:
  57 .byte 2
  58 .size b1, 1
  59 .size b2, 1
  60 .size b3, 1