Abseil Common Libraries (C++) (grcp 依赖)
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57 lines
2.1 KiB
57 lines
2.1 KiB
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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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// Type of function used for printing in stack trace dumping, etc. |
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// We avoid closures to keep things simple. |
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typedef void OutputWriter(const char*, void*); |
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// RegisterDebugStackTraceHook() allows to register a single routine |
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// `hook` that is called each time DumpStackTrace() is called. |
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// `hook` may be called from a signal handler. |
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typedef void (*SymbolizeUrlEmitter)(void* const stack[], int depth, |
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OutputWriter writer, void* writer_arg); |
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// Registration of SymbolizeUrlEmitter for use inside of a signal handler. |
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// This is inherently unsafe and must be signal safe code. |
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void RegisterDebugStackTraceHook(SymbolizeUrlEmitter hook); |
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SymbolizeUrlEmitter GetDebugStackTraceHook(); |
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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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