X-Git-Url: https://gerrit.akraino.org/r/gitweb?a=blobdiff_plain;f=src%2Ftype3_AndroidCloud%2Fanbox-master%2Fexternal%2Fcpu_features%2Fsrc%2Fcpuinfo_mips.c;fp=src%2Ftype3_AndroidCloud%2Fanbox-master%2Fexternal%2Fcpu_features%2Fsrc%2Fcpuinfo_mips.c;h=a61cdd8129b9aa5140a440027e7fb396ee6212ba;hb=e26c1ec581be598521517829adba8c8dd23a768f;hp=0000000000000000000000000000000000000000;hpb=6699c1aea74eeb0eb400e6299079f0c7576f716f;p=iec.git diff --git a/src/type3_AndroidCloud/anbox-master/external/cpu_features/src/cpuinfo_mips.c b/src/type3_AndroidCloud/anbox-master/external/cpu_features/src/cpuinfo_mips.c new file mode 100644 index 0000000..a61cdd8 --- /dev/null +++ b/src/type3_AndroidCloud/anbox-master/external/cpu_features/src/cpuinfo_mips.c @@ -0,0 +1,98 @@ +// 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_mips.h" + +#include "internal/filesystem.h" +#include "internal/linux_features_aggregator.h" +#include "internal/stack_line_reader.h" +#include "internal/string_view.h" + +DECLARE_SETTER(MipsFeatures, msa) +DECLARE_SETTER(MipsFeatures, eva) + +static const CapabilityConfig kConfigs[] = { + {{MIPS_HWCAP_MSA, 0}, "msa", &set_msa}, // + {{MIPS_HWCAP_EVA, 0}, "eva", &set_eva}, // +}; +static const size_t kConfigsSize = sizeof(kConfigs) / sizeof(CapabilityConfig); + +static bool HandleMipsLine(const LineResult result, + MipsFeatures* const features) { + StringView key, value; + // See tests for an example. + if (CpuFeatures_StringView_GetAttributeKeyValue(result.line, &key, &value)) { + if (CpuFeatures_StringView_IsEquals(key, str("ASEs implemented"))) { + CpuFeatures_SetFromFlags(kConfigsSize, kConfigs, value, features); + } + } + return !result.eof; +} + +static void FillProcCpuInfoData(MipsFeatures* const features) { + const int fd = CpuFeatures_OpenFile("/proc/cpuinfo"); + if (fd >= 0) { + StackLineReader reader; + StackLineReader_Initialize(&reader, fd); + for (;;) { + if (!HandleMipsLine(StackLineReader_NextLine(&reader), features)) { + break; + } + } + CpuFeatures_CloseFile(fd); + } +} + +static const MipsInfo kEmptyMipsInfo; + +MipsInfo GetMipsInfo(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). + MipsInfo info = kEmptyMipsInfo; + + FillProcCpuInfoData(&info.features); + CpuFeatures_OverrideFromHwCaps(kConfigsSize, kConfigs, + CpuFeatures_GetHardwareCapabilities(), + &info.features); + return info; +} + +//////////////////////////////////////////////////////////////////////////////// +// Introspection functions + +int GetMipsFeaturesEnumValue(const MipsFeatures* features, + MipsFeaturesEnum value) { + switch (value) { + case MIPS_MSA: + return features->msa; + case MIPS_EVA: + return features->eva; + case MIPS_LAST_: + break; + } + return false; +} + +const char* GetMipsFeaturesEnumName(MipsFeaturesEnum value) { + switch (value) { + case MIPS_MSA: + return "msa"; + case MIPS_EVA: + return "eva"; + case MIPS_LAST_: + break; + } + return "unknown feature"; +}