mirror of
https://github.com/google/cpu_features.git
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dfdac6adfc
* First implementation of ndk_compat * Restrict building of linux_based_hardware_detection to UNIX * Fix variable declaration and printf formatting * Restrict ndk compat to UNIX style systems * Restrict cpu_mask index to 32 * Fix values display in ndk-compat-test * Addressing comments
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
// Copyright 2017 Google Inc.
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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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#include "internal/unix_features_aggregator.h"
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#include "internal/string_view.h"
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void CpuFeatures_SetFromFlags(const size_t configs_size,
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const CapabilityConfig* configs,
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const StringView flags_line,
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void* const features) {
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size_t i = 0;
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for (; i < configs_size; ++i) {
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const CapabilityConfig config = configs[i];
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config.set_bit(features, CpuFeatures_StringView_HasWord(
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flags_line, config.proc_cpuinfo_flag));
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}
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}
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static bool IsSet(const uint32_t mask, const uint32_t value) {
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return (value & mask) == mask;
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}
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static bool IsHwCapsSet(const HardwareCapabilities hwcaps_mask,
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const HardwareCapabilities hwcaps) {
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return IsSet(hwcaps_mask.hwcaps, hwcaps.hwcaps) &&
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IsSet(hwcaps_mask.hwcaps2, hwcaps.hwcaps2);
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}
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void CpuFeatures_OverrideFromHwCaps(const size_t configs_size,
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const CapabilityConfig* configs,
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const HardwareCapabilities hwcaps,
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void* const features) {
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size_t i = 0;
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for (; i < configs_size; ++i) {
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const CapabilityConfig* config = &configs[i];
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if (IsHwCapsSet(config->hwcaps_mask, hwcaps)) {
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config->set_bit(features, true);
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}
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}
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}
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