Files
qt-creator/dist/clang/patches/160_QTCREATORBUG-15449_Fix-files-lock-on-Windows.patch
Nikolai Kosjar 3c745a9eaa Clang: Enumerate clang patches
...to provide some more natural way of appending/inserting new ones at a
specific position. The enumeration also helps to communicate about the
patches.

Change-Id: I8ac911269a11d24a46920c81cd3231c06b94b828
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
2018-01-16 10:10:07 +00:00

17 lines
672 B
Diff

diff --git a/lib/Support/MemoryBuffer.cpp b/lib/Support/MemoryBuffer.cpp
index 85e782b2c04..95f10753d96 100644
--- a/lib/Support/MemoryBuffer.cpp
+++ b/lib/Support/MemoryBuffer.cpp
@@ -284,6 +284,11 @@ static bool shouldUseMmap(int FD,
bool RequiresNullTerminator,
int PageSize,
bool IsVolatile) {
+#ifdef _WIN32
+ // Do not use mmap on Windows in order to avoid file locking
+ return false;
+#endif
+
// mmap may leave the buffer without null terminator if the file size changed
// by the time the last page is mapped in, so avoid it if the file size is
// likely to change.