| /* Test CPU feature data. |
| This file is part of the GNU C Library. |
| Copyright (C) 2012-2014 Free Software Foundation, Inc. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <init-arch.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| static char *cpu_flags; |
| |
| /* Search for flags in /proc/cpuinfo and store line |
| in cpu_flags. */ |
| void |
| get_cpuinfo (void) |
| { |
| FILE *f; |
| char *line = NULL; |
| size_t len = 0; |
| ssize_t read; |
| |
| f = fopen ("/proc/cpuinfo", "r"); |
| if (f == NULL) |
| { |
| printf ("cannot open /proc/cpuinfo\n"); |
| exit (1); |
| } |
| |
| while ((read = getline (&line, &len, f)) != -1) |
| { |
| if (strncmp (line, "flags", 5) == 0) |
| { |
| cpu_flags = strdup (line); |
| break; |
| } |
| } |
| fclose (f); |
| free (line); |
| } |
| |
| int |
| check_proc (const char *proc_name, int flag, const char *name) |
| { |
| int found = 0; |
| |
| printf ("Checking %s:\n", name); |
| printf (" init-arch %d\n", flag); |
| if (strstr (cpu_flags, proc_name) != NULL) |
| found = 1; |
| printf (" cpuinfo (%s) %d\n", proc_name, found); |
| |
| if (found != flag) |
| printf (" *** failure ***\n"); |
| |
| return (found != flag); |
| } |
| |
| static int |
| do_test (int argc, char **argv) |
| { |
| int fails; |
| |
| get_cpuinfo (); |
| fails = check_proc ("avx", HAS_AVX, "HAS_AVX"); |
| fails += check_proc ("fma4", HAS_FMA4, "HAS_FMA4"); |
| fails += check_proc ("sse4_2", HAS_SSE4_2, "HAS_SSE4_2"); |
| fails += check_proc ("sse4_1", HAS_SSE4_1, "HAS_SSE4_1"); |
| fails += check_proc ("ssse3", HAS_SSSE3, "HAS_SSSE3"); |
| fails += check_proc ("popcnt", HAS_POPCOUNT, "HAS_POPCOUNT"); |
| |
| printf ("%d differences between /proc/cpuinfo and glibc code.\n", fails); |
| |
| return (fails != 0); |
| } |
| |
| #include "../../../test-skeleton.c" |