lld/test/ELF/aarch64-variant_pcs.s

   1 # REQUIRES: aarch64
   2 # RUN: rm -rf %t && split-file %s %t && cd %t
   3
   4 # RUN: llvm-mc -filetype=obj -triple=aarch64 1.s -o 1.o
   5 # RUN: ld.lld 1.o --shared -o 1.so
   6 # RUN: llvm-readelf -d -s 1.so | FileCheck --check-prefix=CHECK1 %s
   7
   8 # CHECK1:      Symbol table '.dynsym'
   9 # CHECK1:      0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
  10 # CHECK1:      Symbol table '.symtab'
  11 # CHECK1:      0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
  12
  13 # RUN: llvm-mc -filetype=obj -triple=aarch64 2.s -o 2.o
  14 # RUN: ld.lld 2.o --shared -o 2.so
  15 # RUN: llvm-readelf -d -s 2.so | FileCheck --check-prefix=CHECK2 %s
  16
  17 # CHECK2:      0x0000000070000005 (AARCH64_VARIANT_PCS) 0
  18 # CHECK2:      Symbol table '.dynsym'
  19 # CHECK2:      0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
  20 # CHECK2:      Symbol table '.symtab'
  21 # CHECK2:      0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
  22
  23 # RUN: llvm-mc -filetype=obj -triple=aarch64 3.s -o 3.o
  24 # RUN: ld.lld 3.o --shared -o 3.so
  25 # RUN: llvm-readelf -d -s 3.so | FileCheck --check-prefix=CHECK3 %s
  26
  27 # CHECK3:      0x0000000070000005 (AARCH64_VARIANT_PCS) 0
  28 # CHECK3:      Symbol table '.dynsym'
  29 # CHECK3:      0 IFUNC  GLOBAL DEFAULT [VARIANT_PCS] UND   ifunc_global_def
  30 # CHECK3:      0 NOTYPE GLOBAL DEFAULT               [[#]] func_global_def
  31
  32 # RUN: llvm-mc -filetype=obj -triple=aarch64 4.s -o 4.o
  33 # RUN: ld.lld 4.o --shared -o 4.so
  34 # RUN: llvm-readelf -d -s 4.so | FileCheck --check-prefix=CHECK4 %s
  35
  36 # CHECK4-NOT:  0x0000000070000005 (AARCH64_VARIANT_PCS) 0
  37 # CHECK4:      Symbol table '.dynsym'
  38 # CHECK4:      0 IFUNC GLOBAL DEFAULT [VARIANT_PCS]  [[#]] ifunc_global_def
  39
  40 # RUN: llvm-mc -filetype=obj -triple=aarch64 5.s -o 5.o
  41 # RUN: ld.lld 5.o --shared -o 5.so
  42 # RUN: llvm-readelf -d -s 5.so | FileCheck --check-prefix=CHECK5 %s
  43
  44 # CHECK5:      Symbol table '.dynsym' contains 4 entries:
  45 # CHECK5:      0 NOTYPE  GLOBAL DEFAULT [VARIANT_PCS] UND   func_global_undef
  46 # CHECK5-NEXT: 0 NOTYPE  GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
  47 # CHECK5-NEXT: 0 IFUNC   GLOBAL DEFAULT [VARIANT_PCS] [[#]] ifunc_global_def
  48 # CHECK5:      Symbol table '.symtab' contains 10 entries:
  49 # CHECK5:      0 NOTYPE  LOCAL  DEFAULT [VARIANT_PCS] [[#]] func_local
  50 # CHECK5-NEXT: 0 IFUNC   LOCAL  DEFAULT [VARIANT_PCS] [[#]] ifunc_local
  51 # CHECK5:      0 NOTYPE  LOCAL  HIDDEN  [VARIANT_PCS] [[#]] func_global_hidden
  52 # CHECK5-NEXT: 0 IFUNC   LOCAL  HIDDEN  [VARIANT_PCS] [[#]] ifunc_global_hidden
  53 # CHECK5:      0 NOTYPE  GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
  54 # CHECK5-NEXT: 0 NOTYPE  GLOBAL DEFAULT [VARIANT_PCS] UND   func_global_undef
  55 # CHECK5-NEXT: 0 IFUNC   GLOBAL DEFAULT [VARIANT_PCS] [[#]] ifunc_global_def
  56
  57 #--- 1.s
  58 ## An object with a variant_pcs symbol but without a R_AARCH64_JMP_SLOT
  59 ## should not generate a DT_AARCH64_VARIANT_PCS.
  60 .text
  61 .global func_global_def
  62 .variant_pcs func_global_def
  63
  64 func_global_def:
  65   ret
  66
  67 #--- 2.s
  68 ## An object with a variant_pcs symbol and with a R_AARCH64_JMP_SLOT
  69 ## should generate a DT_AARCH64_VARIANT_PCS.
  70 .text
  71 .global func_global_def
  72 .variant_pcs func_global_def
  73
  74 func_global_def:
  75   bl func_global_def
  76
  77 #--- 3.s
  78 ## Same as before, but targeting a GNU IFUNC.
  79 .text
  80 .global ifunc_global_def
  81 .global func_global_def
  82 .variant_pcs ifunc_global_def
  83 .type ifunc_global_def, %gnu_indirect_function
  84
  85 func_global_def:
  86   bl ifunc_global_def
  87
  88 #--- 4.s
  89 ## An object with a variant_pcs symbol and with a R_AARCH64_IRELATIVE
  90 ## should not generate a DT_AARCH64_VARIANT_PCS.
  91 .text
  92 .global ifunc_global_def
  93 .global func_global_def
  94 .variant_pcs ifunc_global_def
  95 .type ifunc_global_def, %gnu_indirect_function
  96
  97 ifunc_global_def:
  98   bl func_global_def
  99
 100 #--- 5.s
 101 ## Check if STO_AARCH64_VARIANT_PCS is kept on symbol st_other for both undef,
 102 ## local, and hidden visibility.
 103 .text
 104 .global func_global_def, func_global_undef, func_global_hidden
 105 .global ifunc_global_def, ifunc_global_hidden
 106 .local func_local
 107
 108 .hidden func_global_hidden, ifunc_global_hidden
 109
 110 .type ifunc_global_def, %gnu_indirect_function
 111 .type ifunc_global_hidden, %gnu_indirect_function
 112 .type ifunc_local, %gnu_indirect_function
 113
 114 .variant_pcs func_global_def
 115 .variant_pcs func_global_undef
 116 .variant_pcs func_global_hidden
 117 .variant_pcs func_local
 118 .variant_pcs ifunc_global_def
 119 .variant_pcs ifunc_global_hidden
 120 .variant_pcs ifunc_local
 121
 122 func_global_def:
 123 func_global_hidden:
 124 func_local:
 125 ifunc_global_def:
 126 ifunc_global_hidden:
 127 ifunc_local:
 128   ret