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[coff] remove_dots from /PDBPATH but not /PDBALTPATH. 

This more closely matches the behavior of link.exe, and also
simplifies the code slightly.

llvm-svn: 336882
This commit is contained in:
Zachary Turner 2018-07-12 03:22:39 +00:00
parent fdf13ef342
commit e2ce2a5c86
2 changed files with 9 additions and 7 deletions
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5
lld/COFF/Driver.cpp
View File

@ -1384,7 +1384,12 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
// /pdbaltpath flag was passed.
if (Config->PDBAltPath.empty()) {
Config->PDBAltPath = Config->PDBPath;
// It's important to make the path absolute and remove dots. This path
// will eventually be written into the PE header, and certain Microsoft
// tools won't work correctly if these assumptions are not held.
sys::fs::make_absolute(Config->PDBAltPath);
sys::path::remove_dots(Config->PDBAltPath);
}
}

11
lld/COFF/Writer.cpp
View File

@ -122,7 +122,7 @@ private:
class CVDebugRecordChunk : public Chunk {
public:
size_t getSize() const override {
return sizeof(codeview::DebugInfo) + Path.size() + 1;
return sizeof(codeview::DebugInfo) + Config->PDBAltPath.size() + 1;
}
void writeTo(uint8_t *B) const override {
@ -132,12 +132,11 @@ public:
// variable sized field (PDB Path)
char *P = reinterpret_cast<char *>(B + OutputSectionOff + sizeof(*BuildId));
if (!Path.empty())
memcpy(P, Path.data(), Path.size());
P[Path.size()] = '\0';
if (!Config->PDBAltPath.empty())
memcpy(P, Config->PDBAltPath.data(), Config->PDBAltPath.size());
P[Config->PDBAltPath.size()] = '\0';
}
SmallString<128> Path;
mutable codeview::DebugInfo *BuildId = nullptr;
};
@ -510,8 +509,6 @@ void Writer::createMiscChunks() {
// if we're ultimately not going to write CodeView data to the PDB.
auto *CVChunk = make<CVDebugRecordChunk>();
BuildId = CVChunk;
CVChunk->Path = Config->PDBAltPath;
llvm::sys::path::remove_dots(CVChunk->Path);
DebugRecords.push_back(CVChunk);
RdataSec->addChunk(DebugDirectory);