Wrap clang modules and pch files in an object file container.

This patch adds ObjectFilePCHContainerOperations uses the LLVM backend
to put the contents of a PCH into a __clangast section inside a COFF, ELF,
or Mach-O object file container.

This is done to facilitate module debugging by makeing it possible to
store the debug info for the types defined by a module alongside the AST.

rdar://problem/20091852

llvm-svn: 241620

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/lib/Basic/FileManager.cpp b/clang/lib/Basic/FileManager.cpp
index c46e2c7db38..1a636aefa63 100644
--- a/clang/lib/Basic/FileManager.cpp
+++ b/clang/lib/Basic/FileManager.cpp
@@ -19,6 +19,7 @@
 
 #include "clang/Basic/FileManager.h"
 #include "clang/Basic/FileSystemStatCache.h"
+#include "clang/Frontend/PCHContainerOperations.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/Config/llvm-config.h"
 #include "llvm/Support/FileSystem.h"
@@ -585,3 +586,5 @@ void FileManager::PrintStats() const {
 
   //llvm::errs() << PagesMapped << BytesOfPagesMapped << FSLookups;
 }
+
+PCHContainerOperations::~PCHContainerOperations() {}