Add PTHManager::getOriginalSourceFile(), a method that returns the name of the
original source file (if any) that was used to generate the PTH cache.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67343 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/PTHLexer.cpp b/lib/Lex/PTHLexer.cpp
index a5423d0..0a810ce 100644
--- a/lib/Lex/PTHLexer.cpp
+++ b/lib/Lex/PTHLexer.cpp
@@ -569,10 +569,12 @@
const unsigned char* idDataTable,
IdentifierInfo** perIDCache,
void* stringIdLookup, unsigned numIds,
- const unsigned char* spellingBase)
+ const unsigned char* spellingBase,
+ const char* originalSourceFile)
: Buf(buf), PerIDCache(perIDCache), FileLookup(fileLookup),
IdDataTable(idDataTable), StringIdLookup(stringIdLookup),
- NumIds(numIds), PP(0), SpellingBase(spellingBase) {}
+ NumIds(numIds), PP(0), SpellingBase(spellingBase),
+ OriginalSourceFile(originalSourceFile) {}
PTHManager::~PTHManager() {
delete Buf;
@@ -701,10 +703,17 @@
}
}
+ // Compute the address of the original source file.
+ const unsigned char* originalSourceBase = PrologueOffset + sizeof(uint32_t)*4;
+ unsigned len = ReadUnalignedLE16(originalSourceBase);
+ if (!len) originalSourceBase = 0;
+
// Create the new PTHManager.
return new PTHManager(File.take(), FL.take(), IData, PerIDCache,
- SL.take(), NumIds, spellingBase);
+ SL.take(), NumIds, spellingBase,
+ (const char*) originalSourceBase);
}
+
IdentifierInfo* PTHManager::LazilyCreateIdentifierInfo(unsigned PersistentID) {
// Look in the PTH file for the string data for the IdentifierInfo object.
const unsigned char* TableEntry = IdDataTable + sizeof(uint32_t)*PersistentID;