lld/test/ELF/bsymbolic.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t && split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/a.s -o %t/a.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/b.s -o %t/b.o
   5 # RUN: ld.lld -shared %t/a.o %t/b.o -o %t0.so
   6 # RUN: llvm-readobj -r %t0.so | FileCheck %s --check-prefix=REL_DEF
   7 # RUN: llvm-objdump -d %t0.so | FileCheck %s --check-prefix=ASM_DEF
   8
   9 ## -Bsymbolic-non-weak-functions makes all STB_GLOBAL STT_FUNC definitions non-preemptible.
  10 # RUN: ld.lld -shared -Bsymbolic-non-weak-functions %t/a.o %t/b.o -o %t1.so
  11 # RUN: llvm-readobj -r %t1.so | FileCheck %s --check-prefix=REL_GFUN
  12 # RUN: llvm-objdump -d %t1.so | FileCheck %s --check-prefix=ASM_GFUN
  13
  14 ## -Bsymbolic-functions makes all STT_FUNC definitions non-preemptible.
  15 # RUN: ld.lld -shared -Bsymbolic-functions %t/a.o %t/b.o -o %t2.so
  16 # RUN: llvm-readobj -r %t2.so | FileCheck %s --check-prefix=REL_FUN
  17 # RUN: llvm-objdump -d %t2.so | FileCheck %s --check-prefix=ASM_FUN
  18
  19 ## -Bsymbolic makes all definitions non-preemptible.
  20 # RUN: ld.lld -shared -Bsymbolic %t/a.o %t/b.o -o %t3.so
  21 # RUN: llvm-readobj -r %t3.so | FileCheck %s --check-prefix=REL_ALL
  22 # RUN: llvm-objdump -d %t3.so | FileCheck %s --check-prefix=ASM_ALL
  23
  24 ## -Bsymbolic-non-weak makes all STB_GLOBAL definitions non-preemptible.
  25 # RUN: ld.lld -shared -Bsymbolic-non-weak %t/a.o %t/b.o -o %t4.so
  26 # RUN: llvm-readobj -r %t4.so | FileCheck %s --check-prefix=REL_GALL
  27 # RUN: llvm-objdump -d %t4.so | FileCheck %s --check-prefix=ASM_GALL
  28
  29 # RUN: ld.lld -shared -Bsymbolic-functions -Bsymbolic %t/a.o %t/b.o -o %t.so
  30 # RUN: cmp %t.so %t3.so
  31 # RUN: ld.lld -shared -Bsymbolic -Bsymbolic-functions %t/a.o %t/b.o -o %t.so
  32 # RUN: cmp %t.so %t2.so
  33 # RUN: ld.lld -shared -Bno-symbolic -Bsymbolic %t/a.o %t/b.o -o %t.so
  34 # RUN: cmp %t.so %t3.so
  35
  36 ## -Bno-symbolic can cancel previously specified -Bsymbolic and -Bsymbolic-functions.
  37 # RUN: ld.lld -shared -Bsymbolic -Bno-symbolic %t/a.o %t/b.o -o %t.so
  38 # RUN: cmp %t.so %t0.so
  39 # RUN: ld.lld -shared -Bsymbolic-functions -Bno-symbolic %t/a.o %t/b.o -o %t.so
  40 # RUN: cmp %t.so %t0.so
  41
  42 # REL_DEF:      .rela.dyn {
  43 # REL_DEF-NEXT:   R_X86_64_RELATIVE -
  44 # REL_DEF-NEXT:   R_X86_64_RELATIVE -
  45 # REL_DEF-NEXT:   R_X86_64_64 data_weak_default
  46 # REL_DEF-NEXT:   R_X86_64_64 data_default
  47 # REL_DEF-NEXT: }
  48 # REL_DEF-NEXT: .rela.plt {
  49 # REL_DEF-NEXT:   R_X86_64_JUMP_SLOT default
  50 # REL_DEF-NEXT:   R_X86_64_JUMP_SLOT notype_default
  51 # REL_DEF-NEXT:   R_X86_64_JUMP_SLOT weak_default
  52 # REL_DEF-NEXT:   R_X86_64_JUMP_SLOT ext_default
  53 # REL_DEF-NEXT:   R_X86_64_JUMP_SLOT undef
  54 # REL_DEF-NEXT: }
  55
  56 # ASM_DEF:      <_start>:
  57 # ASM_DEF-NEXT:   callq {{.*}} <default@plt>
  58 # ASM_DEF-NEXT:   callq {{.*}} <protected>
  59 # ASM_DEF-NEXT:   callq {{.*}} <hidden>
  60 # ASM_DEF-NEXT:   callq {{.*}} <weak_default@plt>
  61 # ASM_DEF-NEXT:   callq {{.*}} <ext_default@plt>
  62 # ASM_DEF-NEXT:   callq {{.*}} <notype_default@plt>
  63 # ASM_DEF-NEXT:   callq {{.*}} <undef@plt>
  64
  65 # REL_GFUN:      .rela.dyn {
  66 # REL_GFUN-NEXT:   R_X86_64_RELATIVE -
  67 # REL_GFUN-NEXT:   R_X86_64_RELATIVE -
  68 # REL_GFUN-NEXT:   R_X86_64_64 data_weak_default
  69 # REL_GFUN-NEXT:   R_X86_64_64 data_default
  70 # REL_GFUN-NEXT: }
  71 # REL_GFUN-NEXT: .rela.plt {
  72 # REL_GFUN-NEXT:   R_X86_64_JUMP_SLOT notype_default
  73 # REL_GFUN-NEXT:   R_X86_64_JUMP_SLOT weak_default
  74 # REL_GFUN-NEXT:   R_X86_64_JUMP_SLOT undef
  75 # REL_GFUN-NEXT: }
  76
  77 # ASM_GFUN:      <_start>:
  78 # ASM_GFUN-NEXT:   callq {{.*}} <default>
  79 # ASM_GFUN-NEXT:   callq {{.*}} <protected>
  80 # ASM_GFUN-NEXT:   callq {{.*}} <hidden>
  81 # ASM_GFUN-NEXT:   callq {{.*}} <weak_default@plt>
  82 # ASM_GFUN-NEXT:   callq {{.*}} <ext_default>
  83 # ASM_GFUN-NEXT:   callq {{.*}} <notype_default@plt>
  84 # ASM_GFUN-NEXT:   callq {{.*}} <undef@plt>
  85
  86 # REL_FUN:      .rela.dyn {
  87 # REL_FUN-NEXT:   R_X86_64_RELATIVE -
  88 # REL_FUN-NEXT:   R_X86_64_RELATIVE -
  89 # REL_FUN-NEXT:   R_X86_64_64 data_weak_default
  90 # REL_FUN-NEXT:   R_X86_64_64 data_default
  91 # REL_FUN-NEXT: }
  92 # REL_FUN-NEXT: .rela.plt {
  93 # REL_FUN-NEXT:   R_X86_64_JUMP_SLOT notype_default
  94 # REL_FUN-NEXT:   R_X86_64_JUMP_SLOT undef
  95 # REL_FUN-NEXT: }
  96
  97 # ASM_FUN:      <_start>:
  98 # ASM_FUN-NEXT:   callq {{.*}} <default>
  99 # ASM_FUN-NEXT:   callq {{.*}} <protected>
 100 # ASM_FUN-NEXT:   callq {{.*}} <hidden>
 101 # ASM_FUN-NEXT:   callq {{.*}} <weak_default>
 102 # ASM_FUN-NEXT:   callq {{.*}} <ext_default>
 103 # ASM_FUN-NEXT:   callq {{.*}} <notype_default@plt>
 104 # ASM_FUN-NEXT:   callq {{.*}} <undef@plt>
 105
 106 # REL_ALL:      .rela.dyn {
 107 # REL_ALL-NEXT:   R_X86_64_RELATIVE -
 108 # REL_ALL-NEXT:   R_X86_64_RELATIVE -
 109 # REL_ALL-NEXT:   R_X86_64_RELATIVE -
 110 # REL_ALL-NEXT:   R_X86_64_RELATIVE -
 111 # REL_ALL-NEXT: }
 112 # REL_ALL-NEXT: .rela.plt {
 113 # REL_ALL-NEXT:   R_X86_64_JUMP_SLOT undef
 114 # REL_ALL-NEXT: }
 115
 116 # ASM_ALL:      <_start>:
 117 # ASM_ALL-NEXT:   callq {{.*}} <default>
 118 # ASM_ALL-NEXT:   callq {{.*}} <protected>
 119 # ASM_ALL-NEXT:   callq {{.*}} <hidden>
 120 # ASM_ALL-NEXT:   callq {{.*}} <weak_default>
 121 # ASM_ALL-NEXT:   callq {{.*}} <ext_default>
 122 # ASM_ALL-NEXT:   callq {{.*}} <notype_default>
 123 # ASM_ALL-NEXT:   callq {{.*}} <undef@plt>
 124
 125 # REL_GALL:      .rela.dyn {
 126 # REL_GALL-NEXT:   R_X86_64_RELATIVE -
 127 # REL_GALL-NEXT:   R_X86_64_RELATIVE -
 128 # REL_GALL-NEXT:   R_X86_64_RELATIVE -
 129 # REL_GALL-NEXT:   R_X86_64_64 data_weak_default
 130 # REL_GALL-NEXT: }
 131 # REL_GALL-NEXT: .rela.plt {
 132 # REL_GALL-NEXT:   R_X86_64_JUMP_SLOT weak_default
 133 # REL_GALL-NEXT:   R_X86_64_JUMP_SLOT undef
 134 # REL_GALL-NEXT: }
 135
 136 # ASM_GALL:      <_start>:
 137 # ASM_GALL-NEXT:   callq {{.*}} <default>
 138 # ASM_GALL-NEXT:   callq {{.*}} <protected>
 139 # ASM_GALL-NEXT:   callq {{.*}} <hidden>
 140 # ASM_GALL-NEXT:   callq {{.*}} <weak_default@plt>
 141 # ASM_GALL-NEXT:   callq {{.*}} <ext_default>
 142 # ASM_GALL-NEXT:   callq {{.*}} <notype_default>
 143 # ASM_GALL-NEXT:   callq {{.*}} <undef@plt>
 144
 145 #--- a.s
 146 .globl default, protected, hidden, notype_default
 147 .weak weak_default
 148 .protected protected
 149 .hidden hidden
 150 .type default, @function
 151 .type protected, @function
 152 .type hidden, @function
 153 .type weak_default, @function
 154 default: nop
 155 protected: nop
 156 hidden: nop
 157 weak_default: nop
 158 notype_default: nop
 159
 160 .globl _start
 161 _start:
 162   callq default@PLT
 163   callq protected@PLT
 164   callq hidden@PLT
 165
 166   callq weak_default@PLT
 167
 168   callq ext_default@PLT
 169
 170   callq notype_default@PLT
 171
 172   callq undef@PLT
 173
 174 .data
 175   .quad data_default
 176   .quad data_weak_default
 177   .quad data_protected
 178   .quad data_hidden
 179
 180 .globl data_default, data_weak_default, data_protected, data_hidden
 181 .weak data_weak_default
 182 .protected data_protected
 183 .hidden data_hidden
 184 .type data_default, @object
 185 .type data_weak_default, @object
 186 .type data_protected, @object
 187 .type data_hidden, @object
 188 data_default: .byte 0
 189 data_weak_default: .byte 0
 190 data_protected: .byte 0
 191 data_hidden: .byte 0
 192
 193 #--- b.s
 194 .globl ext_default
 195 .type ext_default,@function
 196 ext_default:
 197   nop