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//
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// Copyright 2018 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#ifndef ABSL_DEBUGGING_INTERNAL_EXAMINE_STACK_H_
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#define ABSL_DEBUGGING_INTERNAL_EXAMINE_STACK_H_
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#include "absl/base/config.h"
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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namespace debugging_internal {
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// Returns the program counter from signal context, or nullptr if
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// unknown. `vuc` is a ucontext_t*. We use void* to avoid the use of
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// ucontext_t on non-POSIX systems.
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void* GetProgramCounter(void* vuc);
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// Uses `writerfn` to dump the program counter, stack trace, and stack
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// frame sizes.
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void DumpPCAndFrameSizesAndStackTrace(
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void* pc, void* const stack[], int frame_sizes[], int depth,
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int min_dropped_frames, bool symbolize_stacktrace,
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void (*writerfn)(const char*, void*), void* writerfn_arg);
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} // namespace debugging_internal
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ABSL_NAMESPACE_END
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} // namespace absl
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#endif // ABSL_DEBUGGING_INTERNAL_EXAMINE_STACK_H_
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