Files
clang-p2996/lld/test/COFF/force.test
Peter Collingbourne 3108802f16 COFF: Friendlier undefined symbol errors.
Summary:
This change does three things:
- Try to find the file and line number of an undefined symbol
  reference by reading codeview debug info.
- Try to find the name of the function or global variable with the
  undefined symbol reference by searching the object file's symbol
  table.
- Prints the information in the same style as the ELF linker.

Differential Revision: https://reviews.llvm.org/D45467

llvm-svn: 330235
2018-04-17 23:32:33 +00:00

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# RUN: yaml2obj < %s > %t.obj
# RUN: not lld-link /out:%t.exe /entry:main %t.obj >& %t.log
# RUN: FileCheck -check-prefix=ERROR %s < %t.log
# RUN: lld-link /out:%t.exe /entry:main %t.obj /force >& %t.log
# RUN: FileCheck -check-prefix=WARN %s < %t.log
# ERROR: error: undefined symbol: foo
# ERROR-NEXT: >>> referenced by {{.*}}.obj
# WARN: warning: undefined symbol: foo
# WARN-NEXT: >>> referenced by {{.*}}.obj
--- !COFF
header:
Machine: IMAGE_FILE_MACHINE_AMD64
Characteristics: []
sections:
- Name: .text
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
Alignment: 4
SectionData: 000000000000
symbols:
- Name: .text
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 6
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 0
Number: 0
- Name: main
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
- Name: foo
Value: 0
SectionNumber: 0
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
...