1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph distributed storage system
6 * Copyright (C) 2014 Red Hat <contact@redhat.com>
8 * Author: Loic Dachary <loic@dachary.org>
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
19 #include "arch/probe.h"
20 #include "arch/intel.h"
22 #include "global/global_context.h"
23 #include "gtest/gtest.h"
26 #define FLAGS_SIZE 4096
31 EXPECT_TRUE(ceph_arch_probed);
33 #if (__arm__ || __aarch64__ || __x86_64__) && __linux__
34 char flags[FLAGS_SIZE];
35 FILE *f = popen("grep '^\\(flags\\|Features\\)[ ]*:' "
36 "/proc/cpuinfo | head -1", "r");
37 if(f == NULL || fgets(flags, FLAGS_SIZE - 1, f) == NULL) {
38 // silently do nothing if /proc/cpuinfo does exist, is not
39 // readable or does not contain the expected information
45 flags[strlen(flags) - 1] = ' ';
49 #if (__arm__ || __aarch64__)
51 expected = (strstr(flags, " neon ") || strstr(flags, " asimd ")) ? 1 : 0;
52 EXPECT_EQ(expected, ceph_arch_neon);
57 expected = strstr(flags, " crc32 ") ? 1 : 0;
58 EXPECT_EQ(expected, ceph_arch_aarch64_crc32);
63 expected = strstr(flags, " pclmulqdq ") ? 1 : 0;
64 EXPECT_EQ(expected, ceph_arch_intel_pclmul);
66 expected = strstr(flags, " sse4_2 ") ? 1 : 0;
67 EXPECT_EQ(expected, ceph_arch_intel_sse42);
69 expected = strstr(flags, " sse4_1 ") ? 1 : 0;
70 EXPECT_EQ(expected, ceph_arch_intel_sse41);
72 expected = (strstr(flags, " sse3 ") || strstr(flags, " ssse3 ")) ? 1 : 0;
73 EXPECT_EQ(expected, ceph_arch_intel_sse3);
75 expected = strstr(flags, " ssse3 ") ? 1 : 0;
76 EXPECT_EQ(expected, ceph_arch_intel_ssse3);
78 expected = strstr(flags, " sse2 ") ? 1 : 0;
79 EXPECT_EQ(expected, ceph_arch_intel_sse2);
89 * compile-command: "cd .. ; make -j4 &&
90 * make unittest_arch &&
91 * valgrind --tool=memcheck ./unittest_arch --gtest_filter=*.*"