forked from qt-creator/qt-creator
17 lines
676 B
Diff
17 lines
676 B
Diff
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diff --git a/lib/Support/MemoryBuffer.cpp b/lib/Support/MemoryBuffer.cpp
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index b935cbf1ae7..3c9a25062f5 100644
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--- a/lib/Support/MemoryBuffer.cpp
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+++ b/lib/Support/MemoryBuffer.cpp
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@@ -286,6 +286,11 @@ static bool shouldUseMmap(int FD,
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bool RequiresNullTerminator,
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int PageSize,
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bool IsVolatileSize) {
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+#ifdef _WIN32
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+ // Do not use mmap on Windows in order to avoid file locking
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+ return false;
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+#endif
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+
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// mmap may leave the buffer without null terminator if the file size changed
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// by the time the last page is mapped in, so avoid it if the file size is
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// likely to change.
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