68 lines
2.8 KiB
C
68 lines
2.8 KiB
C
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// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// The following preprocessor constants must be defined before including this
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// file:
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// - DEFINE_TABLE_FEATURE_TYPE, the underlying type (e.g. X86Features)
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// - DEFINE_TABLE_FEATURES, the list of FEATURE macros to be inserted.
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// This file is to be included once per `cpuinfo_XXX.c` in order to construct
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// feature getters and setters functions as well as several enum indexed tables
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// from the db file.
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// - `kGetters` a table of getters function pointers from feature enum to
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// retrieve a feature,
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// - `kSetters` a table of setters function pointers from feature enum to set a
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// feature,
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// - `kCpuInfoFlags` a table of strings from feature enum to /proc/cpuinfo
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// flags,
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// - `kHardwareCapabilities` a table of HardwareCapabilities structs indexed by
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// their feature enum.
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#ifndef SRC_DEFINE_TABLES_H_
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#define SRC_DEFINE_TABLES_H_
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#define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = CPUINFO_FLAG,
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static const char* kCpuInfoFlags[] = {DEFINE_TABLE_FEATURES};
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#undef FEATURE
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#ifndef DEFINE_TABLE_DONT_GENERATE_HWCAPS
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#define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) \
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[ENUM] = (HardwareCapabilities){HWCAP, HWCAP2},
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static const HardwareCapabilities kHardwareCapabilities[] = {
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DEFINE_TABLE_FEATURES};
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#undef FEATURE
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#endif // DEFINE_TABLE_DONT_GENERATE_HWCAPS
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#define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) \
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static void set_##ENUM(DEFINE_TABLE_FEATURE_TYPE* features, bool value) { \
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features->NAME = value; \
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} \
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static int get_##ENUM(const DEFINE_TABLE_FEATURE_TYPE* features) { \
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return features->NAME; \
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}
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DEFINE_TABLE_FEATURES
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#undef FEATURE
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#define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = set_##ENUM,
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static void (*const kSetters[])(DEFINE_TABLE_FEATURE_TYPE*,
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bool) = {DEFINE_TABLE_FEATURES};
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#undef FEATURE
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#define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = get_##ENUM,
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static int (*const kGetters[])(const DEFINE_TABLE_FEATURE_TYPE*) = {
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DEFINE_TABLE_FEATURES};
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#undef FEATURE
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#endif // SRC_DEFINE_TABLES_H_
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