lld/test/MachO/private-extern.s

   1 # REQUIRES: x86
   2
   3 # RUN: rm -rf %t; split-file %s %t
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
   5 # RUN:     %t/basics.s -o %t/basics.o
   6
   7 ## Check that .private_extern symbols are marked as local in the symbol table
   8 ## and aren't in the export trie.
   9 # RUN: %lld -dylib %t/basics.o -o %t/basics
  10 # RUN: llvm-objdump --syms --exports-trie %t/basics | \
  11 # RUN:     FileCheck --check-prefix=EXPORTS %s
  12 # RUN: llvm-nm -m %t/basics | FileCheck --check-prefix=EXPORTS-NM %s
  13 # EXPORTS-LABEL: SYMBOL TABLE:
  14 # EXPORTS-DAG:   [[#%x, FOO_ADDR:]] l {{.*}} _foo
  15 # EXPORTS-DAG:   [[#%x, BAR_ADDR:]] g {{.*}} _bar
  16 # EXPORTS-LABEL: Exports trie:
  17 # EXPORTS-NOT:   0x{{0*}}[[#%X, FOO_ADDR]] _foo
  18 # EXPORTS-DAG:   0x{{0*}}[[#%X, BAR_ADDR]] _bar
  19 # EXPORTS-NOT:   0x{{0*}}[[#%X, FOO_ADDR]] _foo
  20 # EXPORTS-NM-DAG: (__TEXT,__cstring) non-external (was a private external) _foo
  21 # EXPORTS-NM-DAG: (__TEXT,__cstring) external _bar
  22
  23 ## The tests for weak .private_extern symbols not being referenced in the
  24 ## weak bind table can be found in weak-private-extern.s
  25
  26 #--- basics.s
  27 .section __TEXT,__cstring
  28
  29 .globl _foo, _bar
  30 .private_extern _foo
  31
  32 _foo:
  33 .asciz "Foo"
  34
  35 _bar:
  36 .asciz "Bar"
  37
  38 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
  39 # RUN:     %t/strong-globl.s -o %t/strong-globl.o
  40 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
  41 # RUN:     %t/weak-globl.s -o %t/weak-globl.o
  42
  43 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
  44 # RUN:     %t/strong-private.s -o %t/strong-private.o
  45 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
  46 # RUN:     %t/weak-private.s -o %t/weak-private.o
  47
  48 ## weak + strong symbol takes privateness from strong symbol
  49 ## - weak private extern + strong extern = strong extern (for both .o orderings)
  50 # RUN: %lld -dylib %t/weak-private.o %t/strong-globl.o -o %t/wpsg
  51 # RUN: llvm-nm -m %t/wpsg | FileCheck --check-prefix=EXTERNAL %s
  52 # RUN: %lld -dylib %t/strong-globl.o %t/weak-private.o -o %t/sgwp
  53 # RUN: llvm-nm -m %t/sgwp | FileCheck --check-prefix=EXTERNAL %s
  54 # EXTERNAL: (__TEXT,__text) external _foo
  55 ## - weak extern + strong private extern = strong private extern
  56 ##   (for both .o orderings)
  57 # RUN: %lld -dylib %t/weak-globl.o %t/strong-private.o -o %t/wgsp
  58 # RUN: llvm-nm -m %t/wgsp | FileCheck --check-prefix=NONEXTERNAL %s
  59 # RUN: %lld -dylib %t/strong-private.o %t/weak-globl.o -o %t/spwg
  60 # RUN: llvm-nm -m %t/spwg | FileCheck --check-prefix=NONEXTERNAL %s
  61 # NONEXTERNAL: (__TEXT,__text) non-external (was a private external) _foo
  62
  63 ## weak + weak symbol take weaker privateness
  64 ## - weak extern + weak private extern = weak extern (both orders)
  65 # RUN: %lld -dylib %t/weak-private.o %t/weak-globl.o -o %t/wpwg
  66 # RUN: llvm-nm -m %t/wpwg | FileCheck --check-prefix=WEAK-EXTERNAL %s
  67 # RUN: %lld -dylib %t/weak-globl.o %t/weak-private.o -o %t/wgwp
  68 # RUN: llvm-nm -m %t/wgwp | FileCheck --check-prefix=WEAK-EXTERNAL %s
  69 # WEAK-EXTERNAL: (__TEXT,__text) weak external _foo
  70 ## - weak private extern + weak private extern = weak private extern
  71 # RUN: %lld -dylib %t/weak-private.o %t/weak-private.o -o %t/wpwp
  72 # RUN: llvm-nm -m %t/wpwp | FileCheck --check-prefix=NONEXTERNAL %s
  73
  74 #--- strong-globl.s
  75 .globl _foo
  76 _foo:
  77   retq
  78
  79 #--- weak-globl.s
  80 .globl _foo
  81 .weak_definition _foo
  82 _foo:
  83   retq
  84
  85 #--- strong-private.s
  86 .private_extern _foo
  87 .globl _foo
  88 _foo:
  89   retq
  90
  91 #--- weak-private.s
  92 .private_extern _foo
  93 .globl _foo
  94 .weak_definition _foo
  95 _foo:
  96   retq
  97
  98 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
  99 # RUN:     %t/comm-small.s -o %t/comm-small.o
 100 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
 101 # RUN:     %t/comm-large.s -o %t/comm-large.o
 102
 103 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
 104 # RUN:     %t/comm-small-private.s -o %t/comm-small-private.o
 105 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
 106 # RUN:     %t/comm-large-private.s -o %t/comm-large-private.o
 107
 108 ## For common symbols the larger one wins.
 109 ## - smaller private extern + larger extern = larger extern
 110 # RUN: %lld -dylib %t/comm-small-private.o %t/comm-large.o -o %t/cspcl
 111 # RUN: llvm-nm -m %t/cspcl | FileCheck --check-prefix=COMMON-EXTERNAL %s
 112 # RUN: %lld -dylib %t/comm-large.o %t/comm-small-private.o -o %t/clcsp
 113 # RUN: llvm-nm -m %t/clcsp | FileCheck --check-prefix=COMMON-EXTERNAL %s
 114 # COMMON-EXTERNAL: (__DATA,__common) external _foo
 115 ## - smaller extern + larger private extern = larger private extern
 116 # RUN: %lld -dylib %t/comm-large-private.o %t/comm-small.o -o %t/clpcs
 117 # RUN: llvm-nm -m %t/clpcs | FileCheck --check-prefix=COMMON-NONEXTERNAL %s
 118 # RUN: %lld -dylib %t/comm-small.o %t/comm-large-private.o -o %t/csclp
 119 # RUN: llvm-nm -m %t/csclp | FileCheck --check-prefix=COMMON-NONEXTERNAL %s
 120 # COMMON-NONEXTERNAL: (__DATA,__common) non-external (was a private external) _foo
 121
 122 # For common symbols with the same size, the privateness of the symbol seen
 123 # later wins (!).
 124 ## - equal private extern + equal extern = equal extern (both orders)
 125 # RUN: %lld -dylib %t/comm-small-private.o %t/comm-small.o -o %t/cspcs
 126 # RUN: llvm-nm -m %t/cspcs | FileCheck --check-prefix=COMMON-EXTERNAL %s
 127 ## - equal extern + equal private extern = equal private extern (both orders)
 128 # RUN: %lld -dylib %t/comm-small.o %t/comm-small-private.o -o %t/cscsp
 129 # RUN: llvm-nm -m %t/cscsp | FileCheck --check-prefix=COMMON-NONEXTERNAL %s
 130 ## - equal private extern + equal private extern = equal private extern
 131 # RUN: %lld -dylib %t/comm-small-private.o %t/comm-small-private.o -o %t/cspcsp
 132 # RUN: llvm-nm -m %t/cspcsp | FileCheck --check-prefix=COMMON-NONEXTERNAL %s
 133
 134 #--- comm-small.s
 135 .comm _foo,4,2
 136
 137 #--- comm-large.s
 138 .comm _foo,8,3
 139
 140 #--- comm-small-private.s
 141 .private_extern _foo
 142 .comm _foo,4,2
 143
 144 #--- comm-large-private.s
 145 .private_extern _foo
 146 .comm _foo,8,3