ref: 009439541d2c6e8af2596f8fb1b4df85861fd212
dir: /third_party/boringssl/src/crypto/cpu_arm_linux_test.cc/
/* 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 hwcap2;
} kTests[] = {
// 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",
0,
},
// 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",
HWCAP2_AES | HWCAP2_PMULL | HWCAP2_SHA1 | HWCAP2_SHA2,
},
// Garbage should be tolerated.
{
"Blah blah blah this is definitely an ARM CPU",
0,
},
// 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",
HWCAP2_AES | HWCAP2_PMULL | HWCAP2_SHA1 | HWCAP2_SHA2,
},
// Various combinations of ARMv8 flags.
{
"Features : aes sha1 sha2\n"
"CPU architecture: 8\n",
HWCAP2_AES | HWCAP2_SHA1 | HWCAP2_SHA2,
},
{
"Features : pmull sha2\n"
"CPU architecture: 8\n",
HWCAP2_PMULL | HWCAP2_SHA2,
},
{
"Features : aes aes aes not_aes aes aes \n"
"CPU architecture: 8\n",
HWCAP2_AES,
},
{
"Features : \n"
"CPU architecture: 8\n",
0,
},
{
"Features : nothing\n"
"CPU architecture: 8\n",
0,
},
// If opening /proc/cpuinfo fails, we process the empty string.
{
"",
0,
},
};
for (const auto &t : kTests) {
SCOPED_TRACE(t.cpuinfo);
STRING_PIECE sp = {t.cpuinfo, strlen(t.cpuinfo)};
EXPECT_EQ(t.hwcap2, crypto_get_arm_hwcap2_from_cpuinfo(&sp));
}
}