TYPE3

[iec.git] / src / type3_AndroidCloud / anbox-master / external / cpu_features / src / cpuinfo_mips.c

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 (file)
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";
+}