lld/test/MachO/map-file.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/foo.s -o %t/foo.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/test.s -o %t/test.o
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/c-string-literal.s -o %t/c-string-literal.o
   6 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/baz.s -o %t/baz.o
   7
   8 # RUN: llvm-ar --format=darwin crs %t/libfoo.a %t/foo.o
   9 # RUN: %lld -dylib %t/baz.o -o %t/libbaz.dylib
  10 # RUN: %lld -demangle -map %t/map %t/test.o -force_load %t/libfoo.a \
  11 # RUN:   %t/c-string-literal.o %t/libbaz.dylib --time-trace -o %t/test \
  12 # RUN:   --no-deduplicate-strings
  13 # RUN: llvm-objdump --syms --section-headers %t/test > %t/objdump
  14 ## Check that symbols in cstring sections aren't emitted
  15 ## Also check that we don't have redundant EH_Frame symbols (regression test)
  16 # RUN: cat %t/objdump %t/map | FileCheck %s --implicit-check-not _hello_world \
  17 # RUN:   --implicit-check-not EH_Frame
  18 # RUN: FileCheck %s --check-prefix=MAPFILE < %t/test.time-trace
  19
  20 # CHECK:       Sections:
  21 # CHECK-NEXT:  Idx  Name         Size     VMA               Type
  22 # CHECK-NEXT:  0 __text          0000001c [[#%x,TEXT:]]     TEXT
  23 # CHECK-NEXT:  1 __stubs         0000000c [[#%x,STUBS:]]    TEXT
  24 # CHECK-NEXT:  2 __stub_helper   0000001a [[#%x,HELPER:]]   TEXT
  25 # CHECK-NEXT:  3 __cstring       0000002b [[#%x,CSTR:]]     DATA
  26 # CHECK-NEXT:  4 __unwind_info   0000103c [[#%x,UNWIND:]]   DATA
  27 # CHECK-NEXT:  5 __eh_frame      00000038 [[#%x,EH_FRAME:]] DATA
  28 # CHECK-NEXT:  6 __got           00000010 [[#%x,GOT:]]      DATA
  29 # CHECK-NEXT:  7 __la_symbol_ptr 00000010 [[#%x,LAZY:]]     DATA
  30 # CHECK-NEXT:  8 __data          00000008 [[#%x,DATA:]]     DATA
  31 # CHECK-NEXT:  9 __thread_ptrs   00000008 [[#%x,TLVP:]]     DATA
  32 # CHECK-NEXT: 10 __common        00000001 [[#%x,BSS:]]      BSS
  33
  34 # CHECK:      SYMBOL TABLE:
  35 # CHECK-DAG:  [[#%x,DYLD:]]    l     O __DATA,__data __dyld_private
  36 # CHECK-DAG:  [[#%x,MAIN:]]    g     F __TEXT,__text _main
  37 # CHECK-DAG:  [[#%x,NUMBER:]]  g     O __DATA,__common _number
  38 # CHECK-DAG:  [[#%x,BAR:]]     w     F __TEXT,__text _bar
  39 # CHECK-DAG:  [[#%x,FOO:]]     g     F __TEXT,__text __ZTIN3foo3bar4MethE
  40 # CHECK-DAG:  [[#%x,HIWORLD:]] g     O __TEXT,__cstring _hello_world
  41 # CHECK-DAG:  [[#%x,HIITSME:]] g     O __TEXT,__cstring _hello_its_me
  42
  43 # CHECK:      # Path: {{.*}}{{/|\\}}map-file.s.tmp/test
  44 # CHECK-NEXT: # Arch: x86_64
  45 # CHECK-NEXT: # Object files:
  46 # CHECK-NEXT: [  0] linker synthesized
  47 # CHECK-NEXT: [  1] {{.*}}{{/|\\}}usr/lib{{/|\\}}libSystem.tbd{{$}}
  48 # CHECK-NEXT: [  2] {{.*}}{{/|\\}}map-file.s.tmp/test.o{{$}}
  49 # CHECK-NEXT: [  3] {{.*}}{{/|\\}}map-file.s.tmp/libfoo.a(foo.o){{$}}
  50 # CHECK-NEXT: [  4] {{.*}}{{/|\\}}map-file.s.tmp/c-string-literal.o{{$}}
  51 # CHECK-NEXT: [  5] {{.*}}{{/|\\}}map-file.s.tmp/libbaz.dylib{{$}}
  52
  53 # CHECK-NEXT: # Sections:
  54 # CHECK-NEXT: # Address           Size            Segment  Section
  55 # CHECK-NEXT: 0x[[#%X,TEXT]]      0x{{[0-9A-F]+}} __TEXT  __text
  56 # CHECK-NEXT: 0x[[#%X,STUBS]]     0x{{[0-9A-F]+}} __TEXT  __stubs
  57 # CHECK-NEXT: 0x[[#%X,HELPER]]    0x{{[0-9A-F]+}} __TEXT  __stub_helper
  58 # CHECK-NEXT: 0x[[#%X,CSTR]]      0x{{[0-9A-F]+}} __TEXT  __cstring
  59 # CHECK-NEXT: 0x[[#%X,UNWIND]]    0x{{[0-9A-F]+}} __TEXT  __unwind_info
  60 # CHECK-NEXT: 0x[[#%X,EH_FRAME]]  0x{{[0-9A-F]+}} __TEXT  __eh_frame
  61 # CHECK-NEXT: 0x[[#%X,GOT]]       0x{{[0-9A-F]+}} __DATA_CONST  __got
  62 # CHECK-NEXT: 0x[[#%X,LAZY]]      0x{{[0-9A-F]+}} __DATA  __la_symbol_ptr
  63 # CHECK-NEXT: 0x[[#%X,DATA]]      0x{{[0-9A-F]+}} __DATA  __data
  64 # CHECK-NEXT: 0x[[#%X,TLVP]]      0x{{[0-9A-F]+}} __DATA  __thread_ptrs
  65 # CHECK-NEXT: 0x[[#%X,BSS]]       0x{{[0-9A-F]+}} __DATA  __common
  66
  67 # CHECK-NEXT: # Symbols:
  68 # CHECK-NEXT: # Address                Size        File   Name
  69 # CHECK-NEXT: 0x[[#%X,MAIN]]           0x00000019  [  2] _main
  70 # CHECK-NEXT: 0x[[#%X,BAR]]            0x00000001  [  2] _bar
  71 # CHECK-NEXT: 0x[[#%X,FOO]]            0x00000001  [  3] __ZTIN3foo3bar4MethE
  72 # CHECK-NEXT: 0x[[#%X,FOO+1]]          0x00000001  [  3] ltmp1
  73 # CHECK-NEXT: 0x[[#%X,STUBS]]          0x00000006  [  5] _baz
  74 # CHECK-NEXT: 0x[[#%X,STUBS+6]]        0x00000006  [  2] _bar
  75 # CHECK-NEXT: 0x[[#%X,HELPER]]         0x0000001A  [  0] helper helper
  76 # CHECK-NEXT: 0x[[#%X,HIWORLD]]        0x0000000E  [  4] literal string: Hello world!\n
  77 # CHECK-NEXT: 0x[[#%X,HIITSME]]        0x0000000F  [  4] literal string: Hello, it's me
  78 # CHECK-NEXT: 0x[[#%X,HIITSME+0xf]]    0x0000000E  [  4] literal string: Hello world!\n
  79 # CHECK-NEXT: 0x[[#%X,UNWIND]]         0x0000103C  [  0] compact unwind info
  80 ## Note: ld64 prints "CIE" and "FDE for: <function>" instead of "EH_Frame".
  81 # CHECK-NEXT: 0x[[#%X,EH_FRAME]]       0x00000018  [  2] EH_Frame
  82 # CHECK-NEXT: 0x[[#%X,EH_FRAME+0x18]]  0x00000020  [  2] EH_Frame
  83 # CHECK-NEXT: 0x[[#%X,GOT]]            0x00000008  [  0] non-lazy-pointer-to-local: _baz2
  84 # CHECK-NEXT: 0x[[#%X,GOT+8]]          0x00000008  [  0] non-lazy-pointer-to-local: dyld_stub_binder
  85 # CHECK-NEXT: 0x[[#%X,LAZY]]           0x00000008  [  5] _baz
  86 # CHECK-NEXT: 0x[[#%X,LAZY+8]]         0x00000008  [  2] _bar
  87 # CHECK-NEXT: 0x[[#%X,DYLD]]           0x00000000  [  0] __dyld_private
  88 # CHECK-NEXT: 0x[[#%X,TLVP]]           0x00000008  [  0] non-lazy-pointer-to-local: _baz_tlv
  89 # CHECK-NEXT: 0x[[#%X,BSS]]            0x00000001  [  2] _number
  90 # CHECK-EMPTY:
  91
  92 # MAPFILE: "name":"Total Write map file"
  93
  94 # RUN: %lld -demangle -dead_strip -map %t/stripped-map %t/test.o -force_load \
  95 # RUN:   %t/libfoo.a %t/c-string-literal.o %t/libbaz.dylib -o %t/stripped
  96 # RUN: FileCheck --check-prefix=STRIPPED %s < %t/stripped-map
  97
  98 # STRIPPED-LABEL: Dead Stripped Symbols:
  99 # STRIPPED-DAG:   <<dead>>  0x00000001  [  2] _number
 100 # STRIPPED-DAG:   <<dead>>  0x00000001  [  3] __ZTIN3foo3bar4MethE
 101 # STRIPPED-DAG:   <<dead>>  0x0000000E  [  4] literal string: Hello world!\n
 102 # STRIPPED-DAG:   <<dead>>  0x0000000F  [  4] literal string: Hello, it's me
 103 # STRIPPED-DAG:   <<dead>>  0x0000000E  [  4] literal string: Hello world!\n
 104
 105 # RUN: %lld --icf=all -map %t/icf-map %t/test.o -force_load %t/libfoo.a \
 106 # RUN:   %t/c-string-literal.o %t/libbaz.dylib -o /dev/null
 107 # RUN: FileCheck --check-prefix=ICF %s < %t/icf-map
 108
 109 ## Verify that folded symbols and cstrings have size zero. Note that ld64 prints
 110 ## folded symbols but not folded cstrings; we print both.
 111
 112 # ICF:     Symbols:
 113 # ICF-DAG: 0x[[#%X,FOO:]]     0x00000000  [  3] __ZTIN3foo3bar4MethE
 114 # ICF-DAG: 0x[[#FOO]]         0x00000001  [  2] _bar
 115 # ICF-DAG: 0x[[#%X,HIWORLD:]] 0x0000000E  [  4]  literal string: Hello world!\n
 116 # ICF-DAG: 0x[[#%X,HIWORLD]]  0x00000000  [  4]  literal string: Hello world!\n
 117
 118 #--- foo.s
 119 .globl __ZTIN3foo3bar4MethE
 120 ## This should not appear in the map file since it is a zero-size private label
 121 ## symbol.
 122 ltmp0:
 123 ## This C++ symbol makes it clear that we do not print the demangled name in
 124 ## the map file, even if `-demangle` is passed.
 125 __ZTIN3foo3bar4MethE:
 126   nop
 127
 128 ## This private label symbol will appear in the map file since it has nonzero
 129 ## size.
 130 ltmp1:
 131   nop
 132
 133 .subsections_via_symbols
 134
 135 #--- test.s
 136 .comm _number, 1
 137 .globl _main, _bar
 138 .weak_definition _bar
 139
 140 _main:
 141 .cfi_startproc
 142 .cfi_def_cfa_offset 16
 143   callq _bar
 144   callq _baz
 145   movq _baz2@GOTPCREL(%rip), %rax
 146   mov _baz_tlv@TLVP(%rip), %rax
 147   ret
 148 .cfi_endproc
 149
 150 _bar:
 151   nop
 152
 153 .subsections_via_symbols
 154
 155 #--- c-string-literal.s
 156 .globl _hello_world, _hello_its_me
 157
 158 .cstring
 159
 160 _hello_world:
 161 .asciz "Hello world!\n"
 162
 163 _hello_its_me:
 164 .asciz "Hello, it's me"
 165
 166 .asciz "Hello world!\n"
 167
 168 .subsections_via_symbols
 169
 170 #--- baz.s
 171 .globl _baz, _baz2
 172
 173 _baz:
 174   nop
 175
 176 _baz2:
 177   nop
 178
 179 .section __DATA,__thread_vars,thread_local_variables
 180 .globl _baz_tlv
 181 _baz_tlv:
 182   nop