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- /* Copyright (c) 2018, Google Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
-
- #include "cpu-arm-linux.h"
-
- #include <string.h>
-
- #include <gtest/gtest.h>
-
-
- TEST(ARMLinuxTest, CPUInfo) {
- struct CPUInfoTest {
- const char *cpuinfo;
- unsigned long hwcap;
- unsigned long hwcap2;
- bool broken_neon;
- } kTests[] = {
- // https://crbug.com/341598#c33
- {
- "Processor: ARMv7 Processory rev 0 (v71)\n"
- "processor: 0\n"
- "BogoMIPS: 13.50\n"
- "\n"
- "Processor: 1\n"
- "BogoMIPS: 13.50\n"
- "\n"
- "Features: swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 "
- "idiva idivt\n"
- "CPU implementer : 0x51\n"
- "CPU architecture: 7\n"
- "CPU variant: 0x1\n"
- "CPU part: 0x04d\n"
- "CPU revision: 0\n"
- "\n"
- "Hardware: SAMSUNG M2\n"
- "Revision: 0010\n"
- "Serial: 00001e030000354e\n",
- HWCAP_NEON,
- 0,
- true,
- },
- // https://crbug.com/341598#c39
- {
- "Processor : ARMv7 Processor rev 0 (v7l)\n"
- "processor : 0\n"
- "BogoMIPS : 13.53\n"
- "\n"
- "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls "
- "vfpv4\n"
- "CPU implementer : 0x51\n"
- "CPU architecture: 7\n"
- "CPU variant : 0x1\n"
- "CPU part : 0x04d\n"
- "CPU revision : 0\n"
- "\n"
- "Hardware : SAMSUNG M2_ATT\n"
- "Revision : 0010\n"
- "Serial : 0000df0c00004d4c\n",
- HWCAP_NEON,
- 0,
- true,
- },
- // Nexus 4 from https://crbug.com/341598#c43
- {
- "Processor : ARMv7 Processor rev 2 (v7l)\n"
- "processor : 0\n"
- "BogoMIPS : 13.53\n"
- "\n"
- "processor : 1\n"
- "BogoMIPS : 13.53\n"
- "\n"
- "processor : 2\n"
- "BogoMIPS : 13.53\n"
- "\n"
- "processor : 3\n"
- "BogoMIPS : 13.53\n"
- "\n"
- "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls "
- "vfpv4 \n"
- "CPU implementer : 0x51\n"
- "CPU architecture: 7\n"
- "CPU variant : 0x0\n"
- "CPU part : 0x06f\n"
- "CPU revision : 2\n"
- "\n"
- "Hardware : QCT APQ8064 MAKO\n"
- "Revision : 000b\n"
- "Serial : 0000000000000000\n",
- HWCAP_NEON,
- 0,
- false,
- },
- // Razr M from https://crbug.com/341598#c43
- {
- "Processor : ARMv7 Processor rev 4 (v7l)\n"
- "processor : 0\n"
- "BogoMIPS : 13.53\n"
- "\n"
- "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls "
- "vfpv4\n"
- "CPU implementer : 0x51\n"
- "CPU architecture: 7\n"
- "CPU variant : 0x1\n"
- "CPU part : 0x04d\n"
- "CPU revision : 4\n"
- "\n"
- "Hardware : msm8960dt\n"
- "Revision : 82a0\n"
- "Serial : 0001000201fe37a5\n",
- HWCAP_NEON,
- 0,
- false,
- },
- // Pixel 2 (truncated slightly)
- {
- "Processor : AArch64 Processor rev 1 (aarch64)\n"
- "processor : 0\n"
- "BogoMIPS : 38.00\n"
- "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n"
- "CPU implementer : 0x51\n"
- "CPU architecture: 8\n"
- "CPU variant : 0xa\n"
- "CPU part : 0x801\n"
- "CPU revision : 4\n"
- "\n"
- "processor : 1\n"
- "BogoMIPS : 38.00\n"
- "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n"
- "CPU implementer : 0x51\n"
- "CPU architecture: 8\n"
- "CPU variant : 0xa\n"
- "CPU part : 0x801\n"
- "CPU revision : 4\n"
- "\n"
- "processor : 2\n"
- "BogoMIPS : 38.00\n"
- "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n"
- "CPU implementer : 0x51\n"
- "CPU architecture: 8\n"
- "CPU variant : 0xa\n"
- "CPU part : 0x801\n"
- "CPU revision : 4\n"
- "\n"
- "processor : 3\n"
- "BogoMIPS : 38.00\n"
- "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n"
- "CPU implementer : 0x51\n"
- "CPU architecture: 8\n"
- "CPU variant : 0xa\n"
- "CPU part : 0x801\n"
- "CPU revision : 4\n"
- // (Extra processors omitted.)
- "\n"
- "Hardware : Qualcomm Technologies, Inc MSM8998\n",
- HWCAP_NEON, // CPU architecture 8 implies NEON.
- HWCAP2_AES | HWCAP2_PMULL | HWCAP2_SHA1 | HWCAP2_SHA2,
- false,
- },
- // Nexus 4 from
- // Garbage should be tolerated.
- {
- "Blah blah blah this is definitely an ARM CPU",
- 0,
- 0,
- false,
- },
- // A hypothetical ARMv8 CPU without crc32 (and thus no trailing space
- // after the last crypto entry).
- {
- "Features : aes pmull sha1 sha2\n"
- "CPU architecture: 8\n",
- HWCAP_NEON,
- HWCAP2_AES | HWCAP2_PMULL | HWCAP2_SHA1 | HWCAP2_SHA2,
- false,
- },
- // Various combinations of ARMv8 flags.
- {
- "Features : aes sha1 sha2\n"
- "CPU architecture: 8\n",
- HWCAP_NEON,
- HWCAP2_AES | HWCAP2_SHA1 | HWCAP2_SHA2,
- false,
- },
- {
- "Features : pmull sha2\n"
- "CPU architecture: 8\n",
- HWCAP_NEON,
- HWCAP2_PMULL | HWCAP2_SHA2,
- false,
- },
- {
- "Features : aes aes aes not_aes aes aes \n"
- "CPU architecture: 8\n",
- HWCAP_NEON,
- HWCAP2_AES,
- false,
- },
- {
- "Features : \n"
- "CPU architecture: 8\n",
- HWCAP_NEON,
- 0,
- false,
- },
- {
- "Features : nothing\n"
- "CPU architecture: 8\n",
- HWCAP_NEON,
- 0,
- false,
- },
- };
-
- for (const auto &t : kTests) {
- SCOPED_TRACE(t.cpuinfo);
- STRING_PIECE sp = {t.cpuinfo, strlen(t.cpuinfo)};
- EXPECT_EQ(t.hwcap, crypto_get_arm_hwcap_from_cpuinfo(&sp));
- EXPECT_EQ(t.hwcap2, crypto_get_arm_hwcap2_from_cpuinfo(&sp));
- EXPECT_EQ(t.broken_neon ? 1 : 0, crypto_cpuinfo_has_broken_neon(&sp));
- }
- }
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