X-Git-Url: https://gerrit.akraino.org/r/gitweb?a=blobdiff_plain;f=src%2Ftype3_AndroidCloud%2Fanbox-master%2Fexternal%2Fcpu_features%2Fsrc%2Fcpuinfo_aarch64.c;fp=src%2Ftype3_AndroidCloud%2Fanbox-master%2Fexternal%2Fcpu_features%2Fsrc%2Fcpuinfo_aarch64.c;h=0d111ff934301b24f25bc5045e72b84f5e258e7d;hb=e26c1ec581be598521517829adba8c8dd23a768f;hp=0000000000000000000000000000000000000000;hpb=6699c1aea74eeb0eb400e6299079f0c7576f716f;p=iec.git diff --git a/src/type3_AndroidCloud/anbox-master/external/cpu_features/src/cpuinfo_aarch64.c b/src/type3_AndroidCloud/anbox-master/external/cpu_features/src/cpuinfo_aarch64.c new file mode 100644 index 0000000..0d111ff --- /dev/null +++ b/src/type3_AndroidCloud/anbox-master/external/cpu_features/src/cpuinfo_aarch64.c @@ -0,0 +1,141 @@ +// Copyright 2017 Google Inc. +// +// 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. + +#include "cpuinfo_aarch64.h" + +#include "internal/filesystem.h" +#include "internal/hwcaps.h" +#include "internal/linux_features_aggregator.h" +#include "internal/stack_line_reader.h" +#include "internal/string_view.h" + +#include + +DECLARE_SETTER(Aarch64Features, fp) +DECLARE_SETTER(Aarch64Features, asimd) +DECLARE_SETTER(Aarch64Features, aes) +DECLARE_SETTER(Aarch64Features, pmull) +DECLARE_SETTER(Aarch64Features, sha1) +DECLARE_SETTER(Aarch64Features, sha2) +DECLARE_SETTER(Aarch64Features, crc32) + +static const CapabilityConfig kConfigs[] = { + {{AARCH64_HWCAP_FP, 0}, "fp", &set_fp}, // + {{AARCH64_HWCAP_ASIMD, 0}, "asimd", &set_asimd}, // + {{AARCH64_HWCAP_AES, 0}, "aes", &set_aes}, // + {{AARCH64_HWCAP_PMULL, 0}, "pmull", &set_pmull}, // + {{AARCH64_HWCAP_SHA1, 0}, "sha1", &set_sha1}, // + {{AARCH64_HWCAP_SHA2, 0}, "sha2", &set_sha2}, // + {{AARCH64_HWCAP_CRC32, 0}, "crc32", &set_crc32}, // +}; + +static const size_t kConfigsSize = sizeof(kConfigs) / sizeof(CapabilityConfig); + +static bool HandleAarch64Line(const LineResult result, + Aarch64Info* const info) { + StringView line = result.line; + StringView key, value; + if (CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value)) { + if (CpuFeatures_StringView_IsEquals(key, str("Features"))) { + CpuFeatures_SetFromFlags(kConfigsSize, kConfigs, value, &info->features); + } else if (CpuFeatures_StringView_IsEquals(key, str("CPU implementer"))) { + info->implementer = CpuFeatures_StringView_ParsePositiveNumber(value); + } else if (CpuFeatures_StringView_IsEquals(key, str("CPU variant"))) { + info->variant = CpuFeatures_StringView_ParsePositiveNumber(value); + } else if (CpuFeatures_StringView_IsEquals(key, str("CPU part"))) { + info->part = CpuFeatures_StringView_ParsePositiveNumber(value); + } else if (CpuFeatures_StringView_IsEquals(key, str("CPU revision"))) { + info->revision = CpuFeatures_StringView_ParsePositiveNumber(value); + } + } + return !result.eof; +} + +static void FillProcCpuInfoData(Aarch64Info* const info) { + const int fd = CpuFeatures_OpenFile("/proc/cpuinfo"); + if (fd >= 0) { + StackLineReader reader; + StackLineReader_Initialize(&reader, fd); + for (;;) { + if (!HandleAarch64Line(StackLineReader_NextLine(&reader), info)) { + break; + } + } + CpuFeatures_CloseFile(fd); + } +} + +static const Aarch64Info kEmptyAarch64Info; + +Aarch64Info GetAarch64Info(void) { + // capabilities are fetched from both getauxval and /proc/cpuinfo so we can + // have some information if the executable is sandboxed (aka no access to + // /proc/cpuinfo). + Aarch64Info info = kEmptyAarch64Info; + + FillProcCpuInfoData(&info); + CpuFeatures_OverrideFromHwCaps(kConfigsSize, kConfigs, + CpuFeatures_GetHardwareCapabilities(), + &info.features); + + return info; +} + +//////////////////////////////////////////////////////////////////////////////// +// Introspection functions + +int GetAarch64FeaturesEnumValue(const Aarch64Features* features, + Aarch64FeaturesEnum value) { + switch (value) { + case AARCH64_FP: + return features->fp; + case AARCH64_ASIMD: + return features->asimd; + case AARCH64_AES: + return features->aes; + case AARCH64_PMULL: + return features->pmull; + case AARCH64_SHA1: + return features->sha1; + case AARCH64_SHA2: + return features->sha2; + case AARCH64_CRC32: + return features->crc32; + case AARCH64_LAST_: + break; + } + return false; +} + +const char* GetAarch64FeaturesEnumName(Aarch64FeaturesEnum value) { + switch (value) { + case AARCH64_FP: + return "fp"; + case AARCH64_ASIMD: + return "asimd"; + case AARCH64_AES: + return "aes"; + case AARCH64_PMULL: + return "pmull"; + case AARCH64_SHA1: + return "sha1"; + case AARCH64_SHA2: + return "sha2"; + case AARCH64_CRC32: + return "crc32"; + case AARCH64_LAST_: + break; + } + return "unknown feature"; +}