| // |
| // 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. |
| |
| // Helper function for measuring stack consumption of signal handlers. |
| |
| #ifndef ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_ |
| #define ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_ |
| |
| // The code in this module is not portable. |
| // Use this feature test macro to detect its availability. |
| #ifdef ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION |
| #error ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION cannot be set directly |
| #elif !defined(__APPLE__) && !defined(_WIN32) && \ |
| (defined(__i386__) || defined(__x86_64__) || defined(__ppc__)) |
| #define ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION 1 |
| |
| namespace absl { |
| namespace debugging_internal { |
| |
| // Returns the stack consumption in bytes for the code exercised by |
| // signal_handler. To measure stack consumption, signal_handler is registered |
| // as a signal handler, so the code that it exercises must be async-signal |
| // safe. The argument of signal_handler is an implementation detail of signal |
| // handlers and should ignored by the code for signal_handler. Use global |
| // variables to pass information between your test code and signal_handler. |
| int GetSignalHandlerStackConsumption(void (*signal_handler)(int)); |
| |
| } // namespace debugging_internal |
| } // namespace absl |
| |
| #endif // ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION |
| |
| #endif // ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_ |