| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * 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 SRC_TRACED_PROBES_FTRACE_ATRACE_WRAPPER_H_ |
| #define SRC_TRACED_PROBES_FTRACE_ATRACE_WRAPPER_H_ |
| |
| #include <string> |
| #include <type_traits> |
| #include <vector> |
| |
| namespace perfetto { |
| |
| using RunAtraceFunction = |
| std::add_pointer<bool(const std::vector<std::string>& /*args*/, |
| std::string* /*atrace_errors*/)>::type; |
| |
| // When we are sideloaded on an old version of Android (pre P), we cannot use |
| // atrace --only_userspace because that option doesn't exist. In that case we: |
| // - Just use atrace --async_start/stop, which will cause atrace to also |
| // poke at ftrace. |
| // - Suppress the checks for "somebody else enabled ftrace unexpectedly". |
| bool IsOldAtrace(); |
| void SetIsOldAtraceForTesting(bool); |
| void ClearIsOldAtraceForTesting(); |
| |
| bool RunAtrace(const std::vector<std::string>& args, |
| std::string* atrace_errors); |
| void SetRunAtraceForTesting(RunAtraceFunction); |
| |
| } // namespace perfetto |
| |
| #endif // SRC_TRACED_PROBES_FTRACE_ATRACE_WRAPPER_H_ |