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/* Test system cache line sizes.
Copyright (C) 2021-2024 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
<https://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <array_length.h>
static struct
{
const char *name;
int _SC_val;
} sc_options[] =
{
#define N(name) { "_SC_"#name, _SC_##name }
N (LEVEL1_ICACHE_LINESIZE),
N (LEVEL1_DCACHE_LINESIZE),
N (LEVEL2_CACHE_LINESIZE)
};
static int
do_test (void)
{
int result = EXIT_SUCCESS;
for (int i = 0; i < array_length (sc_options); ++i)
{
long int scret = sysconf (sc_options[i]._SC_val);
if (scret < 0)
{
printf ("sysconf (%s) returned < 0 (%ld)\n",
sc_options[i].name, scret);
result = EXIT_FAILURE;
}
else
printf ("sysconf (%s): %ld\n", sc_options[i].name, scret);
}
return result;
}
#include <support/test-driver.c>
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