1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://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, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "cpu_features.h" 17 18 namespace panda::compiler { 19 #if defined PANDA_TARGET_MOBILE || defined PANDA_TARGET_OHOS || defined PANDA_TARGET_UNIX 20 #include <asm/hwcap.h> 21 #include <sys/auxv.h> 22 CpuFeaturesHasCrc32()23bool CpuFeaturesHasCrc32() 24 { 25 auto hwcaps = getauxval(AT_HWCAP); 26 // NOLINTNEXTLINE(hicpp-signed-bitwise) 27 return (hwcaps & HWCAP_CRC32) != 0; 28 } 29 #elif PANDA_TARGET_WINDOWS 30 bool CpuFeaturesHasCrc32() 31 { 32 return false; 33 } 34 #else 35 #error "Unsupported target" 36 #endif 37 } // namespace panda::compiler 38