| // Copyright 2020 Google LLC |
| // |
| // 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. |
| |
| // The following preprocessor constants must be defined before including this |
| // file: |
| // - DEFINE_TABLE_FEATURE_TYPE, the underlying type (e.g. X86Features) |
| // - DEFINE_TABLE_FEATURES, the list of FEATURE macros to be inserted. |
| |
| // This file is to be included once per `cpuinfo_XXX.c` in order to construct |
| // feature getters and setters functions as well as several enum indexed tables |
| // from the db file. |
| // - `kGetters` a table of getters function pointers from feature enum to |
| // retrieve a feature, |
| // - `kSetters` a table of setters function pointers from feature enum to set a |
| // feature, |
| // - `kCpuInfoFlags` a table of strings from feature enum to /proc/cpuinfo |
| // flags, |
| // - `kHardwareCapabilities` a table of HardwareCapabilities structs indexed by |
| // their feature enum. |
| |
| #ifndef SRC_DEFINE_TABLES_H_ |
| #define SRC_DEFINE_TABLES_H_ |
| |
| #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = CPUINFO_FLAG, |
| static const char* kCpuInfoFlags[] = {DEFINE_TABLE_FEATURES}; |
| #undef FEATURE |
| |
| #ifndef DEFINE_TABLE_DONT_GENERATE_HWCAPS |
| #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) \ |
| [ENUM] = (HardwareCapabilities){HWCAP, HWCAP2}, |
| static const HardwareCapabilities kHardwareCapabilities[] = { |
| DEFINE_TABLE_FEATURES}; |
| #undef FEATURE |
| #endif // DEFINE_TABLE_DONT_GENERATE_HWCAPS |
| |
| #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) \ |
| static void set_##ENUM(DEFINE_TABLE_FEATURE_TYPE* features, bool value) { \ |
| features->NAME = value; \ |
| } \ |
| static int get_##ENUM(const DEFINE_TABLE_FEATURE_TYPE* features) { \ |
| return features->NAME; \ |
| } |
| DEFINE_TABLE_FEATURES |
| #undef FEATURE |
| |
| #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = set_##ENUM, |
| static void (*const kSetters[])(DEFINE_TABLE_FEATURE_TYPE*, |
| bool) = {DEFINE_TABLE_FEATURES}; |
| #undef FEATURE |
| |
| #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = get_##ENUM, |
| static int (*const kGetters[])(const DEFINE_TABLE_FEATURE_TYPE*) = { |
| DEFINE_TABLE_FEATURES}; |
| #undef FEATURE |
| |
| #endif // SRC_DEFINE_TABLES_H_ |