Create a single backtrace library.
This library will be used to abstract away getting backtrace
data from how it is implemented. This is the first step to
replacing libcorkscrew with libunwind.
Bug: 8410085
Change-Id: Ie8f159e96a055d378e1ddc72d40239fba4cf52b7
diff --git a/libbacktrace/demangle.c b/libbacktrace/demangle.c
new file mode 100644
index 0000000..de9a460
--- /dev/null
+++ b/libbacktrace/demangle.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sys/types.h>
+
+#include "demangle.h"
+
+extern char* __cxa_demangle (const char* mangled, char* buf, size_t* len,
+ int* status);
+
+char* demangle_symbol_name(const char* name) {
+#if defined(__APPLE__)
+ // Mac OS' __cxa_demangle demangles "f" as "float"; last tested on 10.7.
+ if (name != NULL && name[0] != '_') {
+ return NULL;
+ }
+#endif
+ // __cxa_demangle handles NULL by returning NULL
+ return __cxa_demangle(name, 0, 0, 0);
+}