Fix PR5633 by making the preprocessor handle the case where we can
stat a file but where mmaping it fails. In this case, we emit an
error like:
t.c:1:10: fatal error: error opening file '../../foo.h'
instead of "cannot find file".
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90110 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/PPDirectives.cpp b/lib/Lex/PPDirectives.cpp
index dc7d95e..9caca33 100644
--- a/lib/Lex/PPDirectives.cpp
+++ b/lib/Lex/PPDirectives.cpp
@@ -16,6 +16,7 @@
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/MacroInfo.h"
#include "clang/Lex/LexDiagnostic.h"
+#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/ADT/APInt.h"
using namespace clang;
@@ -1111,7 +1112,9 @@
}
// Finally, if all is good, enter the new file!
- EnterSourceFile(FID, CurDir);
+ if (EnterSourceFile(FID, CurDir))
+ Diag(FilenameTok, diag::err_pp_error_opening_file)
+ << std::string(SourceMgr.getFileEntryForID(FID)->getName());
}
/// HandleIncludeNextDirective - Implements #include_next.