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