lld/test/MachO/tlv.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t; split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/regular.s -o %t/regular.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/tbss.s -o %t/tbss.o
   5
   6 # RUN: %lld -lSystem -no_pie -o %t/regular-no-pie %t/regular.o
   7 # RUN: llvm-otool -hv %t/regular-no-pie | FileCheck %s --check-prefix=HEADER
   8 # RUN: llvm-objdump -d --bind --rebase %t/regular-no-pie | FileCheck %s --check-prefixes=REG,LINKEDIT
   9 # RUN: llvm-objdump --macho --section=__DATA,__thread_vars %t/regular-no-pie | \
  10 # RUN:   FileCheck %s --check-prefix=REG-TLVP
  11
  12 # RUN: %lld -lSystem %t/regular.o -o %t/regular-pie
  13 # RUN: llvm-otool -hv %t/regular-pie | FileCheck %s --check-prefix=HEADER
  14 # RUN: llvm-objdump -d --bind --rebase %t/regular-pie | FileCheck %s --check-prefixes=REG,LINKEDIT
  15 # RUN: llvm-objdump --macho --section=__DATA,__thread_vars %t/regular-pie | \
  16 # RUN:   FileCheck %s --check-prefix=REG-TLVP
  17
  18 # RUN: %lld -lSystem %t/tbss.o -o %t/tbss -e _f
  19 # RUN: llvm-objdump -d --bind --rebase %t/tbss | FileCheck %s --check-prefixes=TBSS,LINKEDIT
  20 # RUN: llvm-objdump --macho --section=__DATA,__thread_vars %t/tbss | \
  21 # RUN:   FileCheck %s --check-prefix=TBSS-TLVP
  22
  23 # RUN: %lld -lSystem %t/regular.o %t/tbss.o -o %t/regular-and-tbss
  24 # RUN: llvm-objdump -d --bind --rebase %t/regular-and-tbss | FileCheck %s --check-prefixes=REG,TBSS,LINKEDIT
  25 # RUN: llvm-objdump --macho --section=__DATA,__thread_vars %t/regular-and-tbss | \
  26 # RUN:   FileCheck %s --check-prefix=REG-TBSS-TLVP
  27 # RUN: llvm-objdump --section-headers %t/regular-and-tbss | FileCheck %s --check-prefix=SECTIONS
  28
  29 ## Check that we always put __thread_bss immediately after __thread_data,
  30 ## regardless of the order of the input files.
  31 # RUN: %lld -lSystem %t/tbss.o %t/regular.o -o %t/regular-and-tbss
  32 # RUN: llvm-objdump --section-headers %t/regular-and-tbss | FileCheck %s --check-prefix=SECTIONS
  33
  34 # HEADER: MH_HAS_TLV_DESCRIPTORS
  35
  36 # REG:       <_main>:
  37 # REG-NEXT:  leaq    {{.*}}(%rip), %rax  ## {{.*}} <_foo>
  38 # REG-NEXT:  leaq    {{.*}}(%rip), %rax  ## {{.*}} <_bar>
  39 # REG-NEXT:  retq
  40
  41 # TBSS:       <_f>:
  42 # TBSS-NEXT:  leaq    {{.*}}(%rip), %rax  ## {{.*}} <_baz>
  43 # TBSS-NEXT:  leaq    {{.*}}(%rip), %rax  ## {{.*}} <_qux>
  44 # TBSS-NEXT:  leaq    {{.*}}(%rip), %rax  ## {{.*}} <_hoge>
  45 # TBSS-NEXT:  retq
  46
  47 # REG-TLVP:      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  48 # REG-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  49 # REG-TLVP-NEXT: 00 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00
  50
  51 # TBSS-TLVP:      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  52 # TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  53 # TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00
  54
  55 # REG-TBSS-TLVP:      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  56 # REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  57 # REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00
  58 # REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  59 # REG-TBSS-TLVP-NEXT: 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  60 # REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 28 00 00 00 00 00 00 00
  61 # REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  62 # REG-TBSS-TLVP-NEXT: 30 00 00 00 00 00 00 00
  63
  64 ## Make sure we don't emit rebase opcodes for relocations in __thread_vars.
  65 # LINKEDIT:       Rebase table:
  66 # LINKEDIT-NEXT:  segment  section            address     type
  67 # LINKEDIT-EMPTY:
  68 # LINKEDIT-NEXT:  Bind table:
  69 # LINKEDIT:       __DATA  __thread_vars   0x{{[0-9a-f]*}}  pointer 0 libSystem __tlv_bootstrap
  70 # LINKEDIT:       __DATA  __thread_vars   0x{{[0-9a-f]*}}  pointer 0 libSystem __tlv_bootstrap
  71
  72 ## Make sure we have an odd number of tlv vars, and that the __thread_vars
  73 ## section starts 16-bytes aligned. This is the setup required for __thread_data
  74 ## not to be automatically 16-bytes aligned, ensuring the linker does its
  75 ## expected job of aligning _hoge$tlv$init.
  76 # SECTIONS:      __thread_vars {{[0-9]+}}8 {{[0-9]+}}0
  77 # SECTIONS:      __thread_data
  78 # SECTIONS:      more_thread_data
  79 # SECTIONS-NEXT: __thread_bss
  80
  81 #--- regular.s
  82 .globl _main
  83 _main:
  84   mov _foo@TLVP(%rip), %rax
  85   mov _bar@TLVP(%rip), %rax
  86   ret
  87
  88 .section __DATA,__thread_data,thread_local_regular
  89 _foo$tlv$init:
  90   .quad 123
  91
  92 .section __DATA,more_thread_data,thread_local_regular
  93 _bar$tlv$init:
  94   .quad 123
  95
  96 .section __DATA,__thread_vars,thread_local_variables
  97 .globl  _foo, _bar
  98 _foo:
  99   .quad  __tlv_bootstrap
 100   .quad  0
 101   .quad  _foo$tlv$init
 102 _bar:
 103   .quad  __tlv_bootstrap
 104   .quad  0
 105   .quad  _bar$tlv$init
 106
 107 #--- tbss.s
 108
 109 .globl _f
 110 _f:
 111   mov _baz@TLVP(%rip), %rax
 112   mov _qux@TLVP(%rip), %rax
 113   mov _hoge@TLVP(%rip), %rax
 114   ret
 115
 116 .tbss _baz$tlv$init, 8, 3
 117 .tbss _qux$tlv$init, 8, 3
 118 .tbss _hoge$tlv$init, 16, 4
 119
 120 .section __DATA,__thread_vars,thread_local_variables
 121 _baz:
 122   .quad  __tlv_bootstrap
 123   .quad  0
 124   .quad  _baz$tlv$init
 125 _qux:
 126   .quad  __tlv_bootstrap
 127   .quad  0
 128   .quad  _qux$tlv$init
 129 _hoge:
 130   .quad  __tlv_bootstrap
 131   .quad  0
 132   .quad  _hoge$tlv$init