1 // Copyright 2023 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 #pragma once 15 16 #include "pw_log_tokenized/log_tokenized.h" 17 18 #if !defined(__cplusplus) || !defined(__GNUC__) || defined(__clang__) 19 20 // If we're not compiling C++ or we're not using GCC, then tokenize the log. 21 #define PW_HANDLE_LOG PW_LOG_TOKENIZED_TO_GLOBAL_HANDLER_WITH_PAYLOAD 22 23 #else // defined(__cplusplus) && defined(__GNUC__) && !defined(__clang__) 24 25 #include <string_view> 26 27 #include "pw_log_string/handler.h" 28 29 // GCC has a bug resulting in section attributes of templated functions being 30 // ignored. This in turn means that log tokenization cannot work for templated 31 // functions, because the token database entries are lost at build time. 32 // For more information see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70435 33 // 34 // To work around this, we defer to string logging only in templated contexts. 35 // 36 // __PRETTY_FUNCTION__ is suffixed with ' [with ...]' for templated contexts 37 // if the class and/or function is templated. For example: 38 // "Foo() [with T = char]". 39 #define PW_HANDLE_LOG(...) \ 40 do { \ 41 if constexpr (std::string_view(__PRETTY_FUNCTION__).back() == ']') { \ 42 PW_LOG_STRING_HANDLE_MESSAGE(__VA_ARGS__); \ 43 } else { \ 44 PW_LOG_TOKENIZED_TO_GLOBAL_HANDLER_WITH_PAYLOAD(__VA_ARGS__); \ 45 } \ 46 } while (0) 47 48 #endif // !defined(__cplusplus) || !defined(__GNUC__) || defined(__clang__) 49