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 #include <cpu-features.h> 17 #include <stdio.h> 18 19 int main(void) 20 { 21 AndroidCpuFamily family = android_getCpuFamily(); 22 switch (family) { 23 case ANDROID_CPU_FAMILY_ARM: 24 printf("CPU family is ARM\n"); 25 break; 26 case ANDROID_CPU_FAMILY_X86: 27 printf("CPU family is x86\n"); 28 break; 29 case ANDROID_CPU_FAMILY_MIPS: 30 printf("CPU family is MIPS\n"); 31 break; 32 default: 33 fprintf(stderr, "Unsupported CPU family: %d\n", family); 34 return 1; 35 } 36 37 if (family == ANDROID_CPU_FAMILY_ARM) { 38 uint64_t features = android_getCpuFeatures(); 39 printf( "Supported ARM features:\n"); 40 #define CHECK(name) \ 41 if ((features & ANDROID_CPU_ARM_FEATURE_## name) != 0) { \ 42 printf( " "#name"\n" ); \ 43 } 44 CHECK(LDREX_STREX) 45 CHECK(VFPv2) 46 CHECK(ARMv7) 47 CHECK(VFPv3) 48 CHECK(VFP_D32) 49 CHECK(VFP_FP16) 50 CHECK(VFP_FMA) 51 CHECK(NEON) 52 CHECK(NEON_FMA) 53 CHECK(IDIV_ARM) 54 CHECK(IDIV_THUMB2) 55 CHECK(iWMMXt) 56 #undef CHECK 57 } 58 59 if (family == ANDROID_CPU_FAMILY_X86) { 60 uint64_t features = android_getCpuFeatures(); 61 printf( "Supported x86 features:\n"); 62 #define CHECK(name) \ 63 if ((features & ANDROID_CPU_X86_FEATURE_## name) != 0) { \ 64 printf( " "#name"\n" ); \ 65 } 66 CHECK(SSSE3) 67 CHECK(POPCNT) 68 CHECK(MOVBE) 69 #undef CHECK 70 } 71 72 int count = android_getCpuCount(); 73 printf( "Number of CPU cores: %d\n", count); 74 return 0; 75 } 76
