lld/test/COFF/pdb-import-gc.yaml

   1 # RUN: yaml2obj %s -o %t.obj
   2 # RUN: lld-link %t.obj %S/Inputs/pdb-import-gc.lib -debug -entry:main \
   3 # RUN:          -nodefaultlib -opt:ref -out:%t.exe -pdb:%t.pdb
   4 # RUN: llvm-pdbutil dump -globals -symbols %t.pdb | FileCheck %s
   5
   6 # This tests the case where an __imp_ chunk is discarded by linker GC. The debug
   7 # info may refer to the __imp_ symbol still.
   8
   9 # Compile this code with MSVC to regenerate the test case:
  10 #   extern char __declspec(dllimport) __wc_mb_cur;
  11 #   int discarded() { return __wc_mb_cur; }
  12 #   int main() { return g2; }
  13
  14 # CHECK:                             Global Symbols
  15 # CHECK-NEXT: ============================================================
  16 # CHECK-NEXT:   Records
  17 # CHECK-NEXT:       20 | S_GDATA32 [size = 32] `__imp___wc_mb_cur`
  18 # CHECK-NEXT:            type = 0x0070 (char), addr = 0000:0000
  19
  20 # CHECK:                                Symbols
  21 # CHECK-NEXT: ============================================================
  22 # CHECK-NEXT:   Mod 0000 | `{{.*}}pdb-import-gc.yaml.tmp.obj`:
  23 # CHECK-NEXT:   Mod 0001 | `* Linker *`:
  24
  25 --- !COFF
  26 header:
  27   Machine:         IMAGE_FILE_MACHINE_AMD64
  28   Characteristics: [  ]
  29 sections:
  30   - Name:            '.debug$S'
  31     Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
  32     Alignment:       1
  33     Subsections:
  34       - !Symbols
  35         Records:
  36           - Kind:            S_GDATA32
  37             DataSym:
  38               Type:            112
  39               DisplayName:     __imp___wc_mb_cur
  40       - !StringTable
  41         Strings:
  42     Relocations:
  43       - VirtualAddress:  20
  44         SymbolName:      __imp___wc_mb_cur
  45         Type:            IMAGE_REL_AMD64_SECREL
  46       - VirtualAddress:  24
  47         SymbolName:      __imp___wc_mb_cur
  48         Type:            IMAGE_REL_AMD64_SECTION
  49   - Name:            '.text$mn'
  50     Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
  51     Alignment:       16
  52     SectionData:     488B05000000000FBE00C3
  53     Relocations:
  54       - VirtualAddress:  3
  55         SymbolName:      __imp___wc_mb_cur
  56         Type:            IMAGE_REL_AMD64_REL32
  57   - Name:            '.text$mn'
  58     Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
  59     Alignment:       16
  60     SectionData:     B82A000000C3
  61 symbols:
  62   - Name:            '.debug$S'
  63     Value:           0
  64     SectionNumber:   1
  65     SimpleType:      IMAGE_SYM_TYPE_NULL
  66     ComplexType:     IMAGE_SYM_DTYPE_NULL
  67     StorageClass:    IMAGE_SYM_CLASS_STATIC
  68     SectionDefinition:
  69       Length:          240
  70       NumberOfRelocations: 2
  71       NumberOfLinenumbers: 0
  72       CheckSum:        0
  73       Number:          0
  74   - Name:            '.text$mn'
  75     Value:           0
  76     SectionNumber:   2
  77     SimpleType:      IMAGE_SYM_TYPE_NULL
  78     ComplexType:     IMAGE_SYM_DTYPE_NULL
  79     StorageClass:    IMAGE_SYM_CLASS_STATIC
  80     SectionDefinition:
  81       Length:          11
  82       NumberOfRelocations: 1
  83       NumberOfLinenumbers: 0
  84       CheckSum:        2906070869
  85       Number:          0
  86       Selection:       IMAGE_COMDAT_SELECT_NODUPLICATES
  87   - Name:            '.text$mn'
  88     Value:           0
  89     SectionNumber:   3
  90     SimpleType:      IMAGE_SYM_TYPE_NULL
  91     ComplexType:     IMAGE_SYM_DTYPE_NULL
  92     StorageClass:    IMAGE_SYM_CLASS_STATIC
  93     SectionDefinition:
  94       Length:          6
  95       NumberOfRelocations: 0
  96       NumberOfLinenumbers: 0
  97       CheckSum:        2139436471
  98       Number:          0
  99       Selection:       IMAGE_COMDAT_SELECT_NODUPLICATES
 100   - Name:            discarded
 101     Value:           0
 102     SectionNumber:   2
 103     SimpleType:      IMAGE_SYM_TYPE_NULL
 104     ComplexType:     IMAGE_SYM_DTYPE_FUNCTION
 105     StorageClass:    IMAGE_SYM_CLASS_EXTERNAL
 106   - Name:            main
 107     Value:           0
 108     SectionNumber:   3
 109     SimpleType:      IMAGE_SYM_TYPE_NULL
 110     ComplexType:     IMAGE_SYM_DTYPE_FUNCTION
 111     StorageClass:    IMAGE_SYM_CLASS_EXTERNAL
 112   - Name:            __imp___wc_mb_cur
 113     Value:           0
 114     SectionNumber:   0
 115     SimpleType:      IMAGE_SYM_TYPE_NULL
 116     ComplexType:     IMAGE_SYM_DTYPE_NULL
 117     StorageClass:    IMAGE_SYM_CLASS_EXTERNAL
 118 ...