1 /*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 */
17 #include <cpu-features.h>
18 #include <jni.h>
19 #include <string.h>
20 #include <sys/auxv.h>
21
android_os_cts_CpuFeatures_isArmCpu(JNIEnv * env,jobject thiz)22 jboolean android_os_cts_CpuFeatures_isArmCpu(JNIEnv* env, jobject thiz)
23 {
24 AndroidCpuFamily cpuFamily = android_getCpuFamily();
25 return cpuFamily == ANDROID_CPU_FAMILY_ARM;
26 }
27
android_os_cts_CpuFeatures_isArm7Compatible(JNIEnv * env,jobject thiz)28 jboolean android_os_cts_CpuFeatures_isArm7Compatible(JNIEnv* env, jobject thiz)
29 {
30 uint64_t cpuFeatures = android_getCpuFeatures();
31 return (cpuFeatures & ANDROID_CPU_ARM_FEATURE_ARMv7) == ANDROID_CPU_ARM_FEATURE_ARMv7;
32 }
33
android_os_cts_CpuFeatures_isMipsCpu(JNIEnv * env,jobject thiz)34 jboolean android_os_cts_CpuFeatures_isMipsCpu(JNIEnv* env, jobject thiz)
35 {
36 AndroidCpuFamily cpuFamily = android_getCpuFamily();
37 return cpuFamily == ANDROID_CPU_FAMILY_MIPS;
38 }
39
android_os_cts_CpuFeatures_isX86Cpu(JNIEnv * env,jobject thiz)40 jboolean android_os_cts_CpuFeatures_isX86Cpu(JNIEnv* env, jobject thiz)
41 {
42 AndroidCpuFamily cpuFamily = android_getCpuFamily();
43 return cpuFamily == ANDROID_CPU_FAMILY_X86;
44 }
45
android_os_cts_CpuFeatures_isArm64Cpu(JNIEnv * env,jobject thiz)46 jboolean android_os_cts_CpuFeatures_isArm64Cpu(JNIEnv* env, jobject thiz)
47 {
48 AndroidCpuFamily cpuFamily = android_getCpuFamily();
49 return cpuFamily == ANDROID_CPU_FAMILY_ARM64;
50 }
51
android_os_cts_CpuFeatures_isMips64Cpu(JNIEnv * env,jobject thiz)52 jboolean android_os_cts_CpuFeatures_isMips64Cpu(JNIEnv* env, jobject thiz)
53 {
54 AndroidCpuFamily cpuFamily = android_getCpuFamily();
55 return cpuFamily == ANDROID_CPU_FAMILY_MIPS64;
56 }
57
android_os_cts_CpuFeatures_isX86_64Cpu(JNIEnv * env,jobject thiz)58 jboolean android_os_cts_CpuFeatures_isX86_64Cpu(JNIEnv* env, jobject thiz)
59 {
60 AndroidCpuFamily cpuFamily = android_getCpuFamily();
61 return cpuFamily == ANDROID_CPU_FAMILY_X86_64;
62 }
63
android_os_cts_CpuFeatures_getHwCaps(JNIEnv *,jobject)64 jint android_os_cts_CpuFeatures_getHwCaps(JNIEnv*, jobject)
65 {
66 return (jint)getauxval(AT_HWCAP);
67 }
68
69 static JNINativeMethod gMethods[] = {
70 { "isArmCpu", "()Z",
71 (void *) android_os_cts_CpuFeatures_isArmCpu },
72 { "isArm7Compatible", "()Z",
73 (void *) android_os_cts_CpuFeatures_isArm7Compatible },
74 { "isMipsCpu", "()Z",
75 (void *) android_os_cts_CpuFeatures_isMipsCpu },
76 { "isX86Cpu", "()Z",
77 (void *) android_os_cts_CpuFeatures_isX86Cpu },
78 { "isArm64Cpu", "()Z",
79 (void *) android_os_cts_CpuFeatures_isArm64Cpu },
80 { "isMips64Cpu", "()Z",
81 (void *) android_os_cts_CpuFeatures_isMips64Cpu },
82 { "isX86_64Cpu", "()Z",
83 (void *) android_os_cts_CpuFeatures_isX86_64Cpu },
84 { "getHwCaps", "()I",
85 (void *) android_os_cts_CpuFeatures_getHwCaps },
86 };
87
register_android_os_cts_CpuFeatures(JNIEnv * env)88 int register_android_os_cts_CpuFeatures(JNIEnv* env)
89 {
90 jclass clazz = env->FindClass("android/os/cts/CpuFeatures");
91
92 return env->RegisterNatives(clazz, gMethods,
93 sizeof(gMethods) / sizeof(JNINativeMethod));
94 }
95