[PATCH] [llvm] Change llvm::sys::Mutex implementation to use STL-provided mutexes

[Zachary Turner]

Fix compiler errors on linux.

http://reviews.llvm.org/D3960

Files:
  lib/ExecutionEngine/OProfileJIT/OProfileWrapper.cpp
  lib/Support/Unix/Process.inc
  lib/Support/Unix/Signals.inc

Index: lib/ExecutionEngine/OProfileJIT/OProfileWrapper.cpp
===================================================================
--- lib/ExecutionEngine/OProfileJIT/OProfileWrapper.cpp
+++ lib/ExecutionEngine/OProfileJIT/OProfileWrapper.cpp
@@ -33,7 +33,7 @@
 namespace {
 
 // Global mutex to ensure a single thread initializes oprofile agent.
-llvm::sys::Mutex OProfileInitializationMutex;
+llvm::sys::RecursiveMutex OProfileInitializationMutex;
 
 } // anonymous namespace
 
Index: lib/Support/Unix/Process.inc
===================================================================
--- lib/Support/Unix/Process.inc
+++ lib/Support/Unix/Process.inc
@@ -266,7 +266,7 @@
 static bool terminalHasColors(int fd) {
 #ifdef HAVE_TERMINFO
   // First, acquire a global lock because these C routines are thread hostile.
-  static sys::Mutex M;
+  static sys::RecursiveMutex M;
   MutexGuard G(M);
 
   int errret = 0;
Index: lib/Support/Unix/Signals.inc
===================================================================
--- lib/Support/Unix/Signals.inc
+++ lib/Support/Unix/Signals.inc
@@ -41,7 +41,7 @@
 
 static RETSIGTYPE SignalHandler(int Sig);  // defined below.
 
-static SmartMutex<true> SignalsMutex;
+static llvm::sys::RecursiveDebugMutex SignalsMutex;
 
 /// InterruptFunction - The function to call if ctrl-c is pressed.
 static void (*InterruptFunction)() = nullptr;
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