Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 61 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/wtf/DynamicAnnotations.cpp b/Source/JavaScriptCore/wtf/DynamicAnnotations.cpp
new file mode 100644
index 000000000..b662877a5
--- /dev/null
+++ b/Source/JavaScriptCore/wtf/DynamicAnnotations.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2011 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "DynamicAnnotations.h"
+
+#if USE(DYNAMIC_ANNOTATIONS) && !USE(DYNAMIC_ANNOTATIONS_NOIMPL)
+
+// Identical code folding(-Wl,--icf=all) countermeasures.
+// This makes all Annotate* functions different, which prevents the linker from
+// folding them.
+#ifdef __COUNTER__
+#define DYNAMIC_ANNOTATIONS_IMPL \
+    volatile short lineno = (__LINE__ << 8) + __COUNTER__; \
+    (void)lineno;
+#else
+#define DYNAMIC_ANNOTATIONS_IMPL \
+    volatile short lineno = (__LINE__ << 8); \
+    (void)lineno;
+#endif
+
+void WTFAnnotateBenignRaceSized(const char*, int, const volatile void*, long, const char*)
+{
+    DYNAMIC_ANNOTATIONS_IMPL
+}
+
+void WTFAnnotateHappensBefore(const char*, int, const volatile void*)
+{
+    DYNAMIC_ANNOTATIONS_IMPL
+}
+
+void WTFAnnotateHappensAfter(const char*, int, const volatile void*)
+{
+    DYNAMIC_ANNOTATIONS_IMPL
+}
+
+#endif // USE(DYNAMIC_ANNOTATIONS) && !USE(DYNAMIC_ANNOTATIONS_NOIMPL)