diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-06-26 20:33:45 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-06-26 20:33:45 +0000 |
| commit | 4ea16835ba66f2240d050ffcaee44cee6c97cab9 (patch) | |
| tree | d2f3d66f3352a3ec22362de0b7a5c1366fc25df8 /COFF/Strings.cpp | |
| parent | 15f7a1a3796209b21af2817fdf11ca9932165c70 (diff) | |
Vendor import of lld trunk r306325:vendor/lld/lld-trunk-r306325
Notes
svn path=/vendor/lld/dist/; revision=320382
svn path=/vendor/lld/lld-trunk-r306325/; revision=320383; tag=vendor/lld/lld-trunk-r306325
Diffstat (limited to 'COFF/Strings.cpp')
| -rw-r--r-- | COFF/Strings.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/COFF/Strings.cpp b/COFF/Strings.cpp index d0558413f673..84f9b9a55a32 100644 --- a/COFF/Strings.cpp +++ b/COFF/Strings.cpp @@ -8,6 +8,7 @@ //===----------------------------------------------------------------------===// #include "Strings.h" +#include <mutex> #if defined(_MSC_VER) #include <Windows.h> @@ -21,6 +22,10 @@ using namespace llvm; Optional<std::string> coff::demangle(StringRef S) { #if defined(_MSC_VER) + // UnDecorateSymbolName is not thread-safe, so we need a mutex. + static std::mutex Mu; + std::lock_guard<std::mutex> Lock(Mu); + char Buf[4096]; if (S.startswith("?")) if (size_t Len = UnDecorateSymbolName(S.str().c_str(), Buf, sizeof(Buf), 0)) |