llvm-capstone/lld/test/COFF/pdb-secrel-absolute.yaml
Zachary Turner ee9906d884 [LLD/PDB] Write actual records to the globals stream.
Previously we were writing an empty globals stream.  Windows
tools interpret this as "private symbols are not present in
this PDB", even when they are, so we need to fix this.  Regardless,
without it we don't have information about global variables, so
we need to fix it anyway.  This patch does that.

With this patch, the "lm" command in WinDbg correctly reports
that we have private symbols available, but the "dv" command
still refuses to display local variables.

Differential Revision: https://reviews.llvm.org/D36535

llvm-svn: 310743
2017-08-11 19:00:03 +00:00

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2.9 KiB
YAML

# RUN: yaml2obj %s -o %t.obj
# RUN: lld-link -debug -entry:main -out:%t.exe -pdb:%t.pdb %t.obj
# RUN: llvm-pdbutil dump -globals %t.pdb | FileCheck %s
# There is an S_GDATA32 symbol record with .secrel32 and .secidx relocations in
# it in this debug info. This is similar to the relocations in the loadcfg.obj
# file in the MSVC CRT. We need to make sure that our relocation logic matches
# MSVC's for these absolute, linker-provided symbols.
# CHECK: Global Symbols
# CHECK-NEXT: ============================================================
# CHECK-NEXT: Records
# CHECK-NEXT: 20 | S_GDATA32 [size = 36] `__guard_fids_table`
# CHECK-NEXT: type = 0x0022 (unsigned long), addr = 0003:0000
--- !COFF
header:
Machine: IMAGE_FILE_MACHINE_AMD64
Characteristics: [ ]
sections:
- Name: '.debug$S'
Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
Alignment: 1
Subsections:
- !Symbols
Records:
- Kind: S_GDATA32
DataSym:
Type: 34
DisplayName: __guard_fids_table
- !StringTable
Strings:
Relocations:
- VirtualAddress: 20
SymbolName: __guard_fids_table
Type: IMAGE_REL_AMD64_SECREL
- VirtualAddress: 24
SymbolName: __guard_fids_table
Type: IMAGE_REL_AMD64_SECTION
- Name: '.text$mn'
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
Alignment: 16
SectionData: 488D0500000000C3
Relocations:
- VirtualAddress: 3
SymbolName: __guard_fids_table
Type: IMAGE_REL_AMD64_REL32
symbols:
- Name: '.debug$S'
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 372
NumberOfRelocations: 6
NumberOfLinenumbers: 0
CheckSum: 0
Number: 0
- Name: '.text$mn'
Value: 0
SectionNumber: 2
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 8
NumberOfRelocations: 1
NumberOfLinenumbers: 0
CheckSum: 1092178131
Number: 0
- Name: main
Value: 0
SectionNumber: 2
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_FUNCTION
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
- Name: __guard_fids_table
Value: 0
SectionNumber: 0
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
...