Changes imported from Abseil "staging" branch:

  - f0a03a750a36dfbd7ab06d2913430ed5f988fd68 Add absl::RegisterSymbolizer() to mutex_nonprod.cc for AP... by Derek Mauro <dmauro@google.com>
  - f34a2ee35b4f6b321c570c51b0c381647176df63 Add the async signal-safe Symbolizer to Abseil. by Derek Mauro <dmauro@google.com>
  - 6a29ec2d6dc080691f6d32e1982201d1d173bdb3 Document preferred placement of ABSL_CONST_INIT attribute... by Abseil Team <absl-team@google.com>
  - 6f04ed6aa9c19bd717f0e8f422a97f3e3368cf30 Internal change. by Abseil Team <absl-team@google.com>
  - 0af9a330aff8fc0b41dcb3fe519930c36b01a9ef Declare absl::raw_logging_internal::SafeWriteToStderr in ... by Abseil Team <absl-team@google.com>
  - 223ff26745d31dfb4b59c36f3dee5441506af3c2 Fix ABSL_ARRAYSIZE() to handle rvalues. by Xiaoyi Zhang <zhangxy@google.com>

GitOrigin-RevId: f0a03a750a36dfbd7ab06d2913430ed5f988fd68
Change-Id: I491f9cc81ca3ee078fb737cbf8fa9bf6a730eee1

1 files changed, 35 insertions, 0 deletions

diff --git a/absl/debugging/symbolize.h b/absl/debugging/symbolize.h
new file mode 100644
index 000000000000..073a4479d9c4
--- /dev/null
+++ b/absl/debugging/symbolize.h
@@ -0,0 +1,35 @@
+// 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_