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

1 files changed, 90 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/heap/VTableSpectrum.cpp b/Source/JavaScriptCore/heap/VTableSpectrum.cpp
new file mode 100644
index 000000000..acb494034
--- /dev/null
+++ b/Source/JavaScriptCore/heap/VTableSpectrum.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2011 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "VTableSpectrum.h"
+
+#include "JSObject.h"
+#include "Structure.h"
+#include <algorithm>
+#include <stdio.h>
+#include <wtf/Platform.h>
+#include <wtf/Vector.h>
+
+#if PLATFORM(MAC)
+#include <dlfcn.h>
+#endif
+
+namespace JSC {
+
+VTableSpectrum::VTableSpectrum()
+{
+}
+
+VTableSpectrum::~VTableSpectrum()
+{
+}
+
+void VTableSpectrum::countVPtr(void* vTablePointer)
+{
+    add(vTablePointer);
+}
+
+void VTableSpectrum::count(JSCell* cell)
+{
+    // FIXME: we need to change this class to count ClassInfos rather than vptrs
+    UNUSED_PARAM(cell);
+}
+
+void VTableSpectrum::dump(FILE* output, const char* comment)
+{
+    fprintf(output, "%s:\n", comment);
+    
+    Vector<KeyAndCount> list = buildList();
+    
+    for (size_t index = list.size(); index-- > 0;) {
+        KeyAndCount item = list.at(index);
+#if PLATFORM(MAC)
+        Dl_info info;
+        if (dladdr(item.key, &info)) {
+            char* findResult = strrchr(info.dli_fname, '/');
+            const char* strippedFileName;
+            
+            if (findResult)
+                strippedFileName = findResult + 1;
+            else
+                strippedFileName = info.dli_fname;
+            
+            fprintf(output, "    %s:%s(%p): %lu\n", strippedFileName, info.dli_sname, item.key, item.count);
+            continue;
+        }
+#endif
+        fprintf(output, "    %p: %lu\n", item.key, item.count);
+    }
+    
+    fflush(output);
+}
+
+} // namespace JSC