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[lld] Write the absolute PDB path to the debug directory. 

This matches the behavior of MSVC's linker.

Differential Revision: https://reviews.llvm.org/D36334

llvm-svn: 310108
This commit is contained in:
Zachary Turner 2017-08-04 20:02:55 +00:00
parent fb1cd5090c
commit f1ca78c253
1 changed files with 13 additions and 5 deletions
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18
lld/COFF/Writer.cpp
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@ -78,8 +78,15 @@ private:
};
class CVDebugRecordChunk : public Chunk {
public:
CVDebugRecordChunk() {
PDBAbsPath = Config->PDBPath;
if (!PDBAbsPath.empty())
llvm::sys::fs::make_absolute(PDBAbsPath);
}
size_t getSize() const override {
return sizeof(codeview::DebugInfo) + Config->PDBPath.size() + 1;
return sizeof(codeview::DebugInfo) + PDBAbsPath.size() + 1;
}
void writeTo(uint8_t *B) const override {
@ -91,12 +98,13 @@ class CVDebugRecordChunk : public Chunk {
// variable sized field (PDB Path)
auto *P = reinterpret_cast<char *>(B + OutputSectionOff + sizeof(*DI));
if (!Config->PDBPath.empty())
memcpy(P, Config->PDBPath.data(), Config->PDBPath.size());
P[Config->PDBPath.size()] = '\0';
if (!PDBAbsPath.empty())
memcpy(P, PDBAbsPath.data(), PDBAbsPath.size());
P[PDBAbsPath.size()] = '\0';
}
public:
private:
SmallString<128> PDBAbsPath;
mutable codeview::DebugInfo *DI = nullptr;
};