check results of FlushInstructionCache

Author: sigatrev

lib/Backend/EmitBuffer.cpp

@@ -409,7 +409,10 @@ bool EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::CommitBufferForIn
         return false;
     }
 
-    FlushInstructionCache(this->processHandle, pBuffer, bufferSize);
+    if (!FlushInstructionCache(this->processHandle, pBuffer, bufferSize))
+    {
+        return false;
+    }
 
     return true;
 }
@@ -515,7 +518,11 @@ EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::CommitBuffer(TEmitBuff
         }
     }
 
-    FlushInstructionCache(this->processHandle, bufferToFlush, sizeToFlush);
+    if (!FlushInstructionCache(this->processHandle, bufferToFlush, sizeToFlush))
+    {
+        return false;
+    }
+
 #if DBG_DUMP
     this->totalBytesCode += bytes;
 #endif

lib/Backend/JITThunkEmitter.cpp

@@ -119,7 +119,10 @@ JITThunkEmitter<TAlloc>::CreateThunk(uintptr_t entryPoint)
     this->firstBitToCheck = (thunkIndex + 1 < JITThunkEmitter<TAlloc>::TotalThunkCount) ? thunkIndex + 1 : 0;
     this->freeThunks.Clear(thunkIndex);
 
-    FlushInstructionCache(this->processHandle, (PVOID)thunkAddress, ThunkSize);
+    if (!FlushInstructionCache(this->processHandle, (PVOID)thunkAddress, ThunkSize))
+    {
+        return NULL;
+    }
 
     return thunkAddress;
 }

lib/JITServer/JITServer.cpp

@@ -533,7 +533,11 @@ ServerNewInterpreterThunkBlock(
             &thunkCount
         );
 
-        emitBufferManager->CommitBufferForInterpreter(alloc, runtimeAddress, InterpreterThunkEmitter::BlockSize);
+        if (!emitBufferManager->CommitBufferForInterpreter(alloc, runtimeAddress, InterpreterThunkEmitter::BlockSize))
+        {
+            Js::Throw::OutOfMemory();
+        }
+
         // Call to set VALID flag for CFG check
         if (CONFIG_FLAG(OOPCFGRegistration))
         {