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diff --git a/absl/debugging/symbolize.h b/absl/debugging/symbolize.h
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+// Copyright 2018 The Abseil Authors.
+//
+// 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.
+
+#ifndef ABSL_DEBUGGING_SYMBOLIZE_H_
+#define ABSL_DEBUGGING_SYMBOLIZE_H_
+
+#include "absl/debugging/internal/symbolize.h"
+
+namespace absl {
+
+// Initializes this module. Symbolize() may fail prior calling this function.
+// `argv0` is the path to this program, which is usually obtained in main()
+// though argv[0].
+void InitializeSymbolizer(const char* argv0);
+
+// Symbolizes a program counter.  On success, returns true and write the
+// symbol name to "out".  The symbol name is demangled if possible
+// (supports symbols generated by GCC 3.x or newer), may be truncated, and
+// will be '\0' terminated.  Otherwise, returns false.
+bool Symbolize(const void *pc, char *out, int out_size);
+
+}  // namespace absl
+
+#endif  // ABSL_DEBUGGING_SYMBOLIZE_H_