1 /* Copyright (c) 2018, Google Inc. 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15 #include "cpu-arm-linux.h" 16 17 #include <string.h> 18 19 #include <gtest/gtest.h> 20 21 22 TEST(ARMLinuxTest, CPUInfo) { 23 struct CPUInfoTest { 24 const char *cpuinfo; 25 unsigned long hwcap; 26 unsigned long hwcap2; 27 bool broken_neon; 28 } kTests[] = { 29 // https://crbug.com/341598#c33 30 { 31 "Processor: ARMv7 Processory rev 0 (v71)\n" 32 "processor: 0\n" 33 "BogoMIPS: 13.50\n" 34 "\n" 35 "Processor: 1\n" 36 "BogoMIPS: 13.50\n" 37 "\n" 38 "Features: swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 " 39 "idiva idivt\n" 40 "CPU implementer : 0x51\n" 41 "CPU architecture: 7\n" 42 "CPU variant: 0x1\n" 43 "CPU part: 0x04d\n" 44 "CPU revision: 0\n" 45 "\n" 46 "Hardware: SAMSUNG M2\n" 47 "Revision: 0010\n" 48 "Serial: 00001e030000354e\n", 49 HWCAP_NEON, 50 0, 51 true, 52 }, 53 // https://crbug.com/341598#c39 54 { 55 "Processor : ARMv7 Processor rev 0 (v7l)\n" 56 "processor : 0\n" 57 "BogoMIPS : 13.53\n" 58 "\n" 59 "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls " 60 "vfpv4\n" 61 "CPU implementer : 0x51\n" 62 "CPU architecture: 7\n" 63 "CPU variant : 0x1\n" 64 "CPU part : 0x04d\n" 65 "CPU revision : 0\n" 66 "\n" 67 "Hardware : SAMSUNG M2_ATT\n" 68 "Revision : 0010\n" 69 "Serial : 0000df0c00004d4c\n", 70 HWCAP_NEON, 71 0, 72 true, 73 }, 74 // Nexus 4 from https://crbug.com/341598#c43 75 { 76 "Processor : ARMv7 Processor rev 2 (v7l)\n" 77 "processor : 0\n" 78 "BogoMIPS : 13.53\n" 79 "\n" 80 "processor : 1\n" 81 "BogoMIPS : 13.53\n" 82 "\n" 83 "processor : 2\n" 84 "BogoMIPS : 13.53\n" 85 "\n" 86 "processor : 3\n" 87 "BogoMIPS : 13.53\n" 88 "\n" 89 "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls " 90 "vfpv4 \n" 91 "CPU implementer : 0x51\n" 92 "CPU architecture: 7\n" 93 "CPU variant : 0x0\n" 94 "CPU part : 0x06f\n" 95 "CPU revision : 2\n" 96 "\n" 97 "Hardware : QCT APQ8064 MAKO\n" 98 "Revision : 000b\n" 99 "Serial : 0000000000000000\n", 100 HWCAP_NEON, 101 0, 102 false, 103 }, 104 // Razr M from https://crbug.com/341598#c43 105 { 106 "Processor : ARMv7 Processor rev 4 (v7l)\n" 107 "processor : 0\n" 108 "BogoMIPS : 13.53\n" 109 "\n" 110 "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls " 111 "vfpv4\n" 112 "CPU implementer : 0x51\n" 113 "CPU architecture: 7\n" 114 "CPU variant : 0x1\n" 115 "CPU part : 0x04d\n" 116 "CPU revision : 4\n" 117 "\n" 118 "Hardware : msm8960dt\n" 119 "Revision : 82a0\n" 120 "Serial : 0001000201fe37a5\n", 121 HWCAP_NEON, 122 0, 123 false, 124 }, 125 // Pixel 2 (truncated slightly) 126 { 127 "Processor : AArch64 Processor rev 1 (aarch64)\n" 128 "processor : 0\n" 129 "BogoMIPS : 38.00\n" 130 "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n" 131 "CPU implementer : 0x51\n" 132 "CPU architecture: 8\n" 133 "CPU variant : 0xa\n" 134 "CPU part : 0x801\n" 135 "CPU revision : 4\n" 136 "\n" 137 "processor : 1\n" 138 "BogoMIPS : 38.00\n" 139 "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n" 140 "CPU implementer : 0x51\n" 141 "CPU architecture: 8\n" 142 "CPU variant : 0xa\n" 143 "CPU part : 0x801\n" 144 "CPU revision : 4\n" 145 "\n" 146 "processor : 2\n" 147 "BogoMIPS : 38.00\n" 148 "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n" 149 "CPU implementer : 0x51\n" 150 "CPU architecture: 8\n" 151 "CPU variant : 0xa\n" 152 "CPU part : 0x801\n" 153 "CPU revision : 4\n" 154 "\n" 155 "processor : 3\n" 156 "BogoMIPS : 38.00\n" 157 "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n" 158 "CPU implementer : 0x51\n" 159 "CPU architecture: 8\n" 160 "CPU variant : 0xa\n" 161 "CPU part : 0x801\n" 162 "CPU revision : 4\n" 163 // (Extra processors omitted.) 164 "\n" 165 "Hardware : Qualcomm Technologies, Inc MSM8998\n", 166 HWCAP_NEON, // CPU architecture 8 implies NEON. 167 HWCAP2_AES | HWCAP2_PMULL | HWCAP2_SHA1 | HWCAP2_SHA2, 168 false, 169 }, 170 // Nexus 4 from 171 // Garbage should be tolerated. 172 { 173 "Blah blah blah this is definitely an ARM CPU", 174 0, 175 0, 176 false, 177 }, 178 // A hypothetical ARMv8 CPU without crc32 (and thus no trailing space 179 // after the last crypto entry). 180 { 181 "Features : aes pmull sha1 sha2\n" 182 "CPU architecture: 8\n", 183 HWCAP_NEON, 184 HWCAP2_AES | HWCAP2_PMULL | HWCAP2_SHA1 | HWCAP2_SHA2, 185 false, 186 }, 187 // Various combinations of ARMv8 flags. 188 { 189 "Features : aes sha1 sha2\n" 190 "CPU architecture: 8\n", 191 HWCAP_NEON, 192 HWCAP2_AES | HWCAP2_SHA1 | HWCAP2_SHA2, 193 false, 194 }, 195 { 196 "Features : pmull sha2\n" 197 "CPU architecture: 8\n", 198 HWCAP_NEON, 199 HWCAP2_PMULL | HWCAP2_SHA2, 200 false, 201 }, 202 { 203 "Features : aes aes aes not_aes aes aes \n" 204 "CPU architecture: 8\n", 205 HWCAP_NEON, 206 HWCAP2_AES, 207 false, 208 }, 209 { 210 "Features : \n" 211 "CPU architecture: 8\n", 212 HWCAP_NEON, 213 0, 214 false, 215 }, 216 { 217 "Features : nothing\n" 218 "CPU architecture: 8\n", 219 HWCAP_NEON, 220 0, 221 false, 222 }, 223 }; 224 225 for (const auto &t : kTests) { 226 SCOPED_TRACE(t.cpuinfo); 227 STRING_PIECE sp = {t.cpuinfo, strlen(t.cpuinfo)}; 228 EXPECT_EQ(t.hwcap, crypto_get_arm_hwcap_from_cpuinfo(&sp)); 229 EXPECT_EQ(t.hwcap2, crypto_get_arm_hwcap2_from_cpuinfo(&sp)); 230 EXPECT_EQ(t.broken_neon ? 1 : 0, crypto_cpuinfo_has_broken_neon(&sp)); 231 } 232 } 233
