| // |
| // 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 |
| // |
| // https://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_INTERNAL_EXAMINE_STACK_H_ |
| #define ABSL_DEBUGGING_INTERNAL_EXAMINE_STACK_H_ |
| |
| namespace absl { |
| namespace debugging_internal { |
| |
| // Returns the program counter from signal context, or nullptr if |
| // unknown. `vuc` is a ucontext_t*. We use void* to avoid the use of |
| // ucontext_t on non-POSIX systems. |
| void* GetProgramCounter(void* vuc); |
| |
| // Uses `writerfn` to dump the program counter, stack trace, and stack |
| // frame sizes. |
| void DumpPCAndFrameSizesAndStackTrace( |
| void* pc, void* const stack[], int frame_sizes[], int depth, |
| int min_dropped_frames, bool symbolize_stacktrace, |
| void (*writerfn)(const char*, void*), void* writerfn_arg); |
| |
| } // namespace debugging_internal |
| } // namespace absl |
| |
| #endif // ABSL_DEBUGGING_INTERNAL_EXAMINE_STACK_H_ |