| /* Check use of sysconf() for cache geometries. |
| Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| 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/>. */ |
| |
| /* Test use of sysconf() to get cache sizes, cache set associativity |
| and cache line sizes. */ |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| |
| #include <support/test-driver.h> |
| |
| #define call_str(f, name) f(name, #name) |
| |
| long |
| do_sysconf (int name, const char * str) |
| { |
| int rc = 0; |
| long val; |
| errno = 0; |
| val = sysconf (name); |
| if (val == -1) { |
| if (errno != EINVAL) { |
| printf("error: sysconf(%s): unexpected errno(%d)\n", str, errno); |
| exit (1); |
| } |
| printf ("info: sysconf(%s): unsupported\n", str); |
| rc = 1; |
| } else |
| printf ("sysconf(%s) = 0x%lx (%ld)\n", str, val, val); |
| return rc; |
| } |
| |
| static int |
| do_test (void) |
| { |
| int rc = 0; |
| |
| rc += call_str (do_sysconf, _SC_LEVEL1_ICACHE_SIZE); |
| rc += call_str (do_sysconf, _SC_LEVEL1_ICACHE_ASSOC); |
| rc += call_str (do_sysconf, _SC_LEVEL1_ICACHE_LINESIZE); |
| rc += call_str (do_sysconf, _SC_LEVEL1_DCACHE_SIZE); |
| rc += call_str (do_sysconf, _SC_LEVEL1_DCACHE_ASSOC); |
| rc += call_str (do_sysconf, _SC_LEVEL1_DCACHE_LINESIZE); |
| rc += call_str (do_sysconf, _SC_LEVEL2_CACHE_SIZE); |
| rc += call_str (do_sysconf, _SC_LEVEL2_CACHE_ASSOC); |
| rc += call_str (do_sysconf, _SC_LEVEL2_CACHE_LINESIZE); |
| rc += call_str (do_sysconf, _SC_LEVEL3_CACHE_SIZE); |
| rc += call_str (do_sysconf, _SC_LEVEL3_CACHE_ASSOC); |
| rc += call_str (do_sysconf, _SC_LEVEL3_CACHE_LINESIZE); |
| |
| if (rc) |
| return EXIT_UNSUPPORTED; |
| return 0; |
| } |
| |
| #include <support/test-driver.c> |