152 lines
4.1 KiB
C
152 lines
4.1 KiB
C
/* Test and measure string and memory functions.
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Copyright (C) 1999, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Written by Jakub Jelinek <jakub@redhat.com>, 1999.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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typedef struct
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{
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const char *name;
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void (*fn) (void);
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long test;
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} impl_t;
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extern impl_t __start_impls[], __stop_impls[];
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#define IMPL(name, test) \
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impl_t tst_ ## name \
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__attribute__ ((section ("impls"), aligned (sizeof (void *)))) \
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= { #name, (void (*) (void))name, test };
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#ifdef TEST_MAIN
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#undef __USE_STRING_INLINES
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <error.h>
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#include <errno.h>
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#include <time.h>
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#define GL(x) _##x
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#include <hp-timing.h>
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# define TEST_FUNCTION test_main ()
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# define TIMEOUT (4 * 60)
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# define OPT_ITERATIONS 10000
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# define OPT_RANDOM 10001
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# define OPT_SEED 10002
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unsigned char *buf1, *buf2;
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int ret, do_srandom;
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unsigned int seed;
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size_t page_size;
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hp_timing_t _dl_hp_timing_overhead;
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# ifndef ITERATIONS
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size_t iterations = 100000;
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# define ITERATIONS_OPTIONS \
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{ "iterations", required_argument, NULL, OPT_ITERATIONS },
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# define ITERATIONS_PROCESS \
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case OPT_ITERATIONS: \
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iterations = strtoul (optarg, NULL, 0); \
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break;
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# define ITERATIONS iterations
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# else
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# define ITERATIONS_OPTIONS
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# define ITERATIONS_PROCESS
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# endif
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# define CMDLINE_OPTIONS ITERATIONS_OPTIONS \
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{ "random", no_argument, NULL, OPT_RANDOM }, \
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{ "seed", required_argument, NULL, OPT_SEED },
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# define CMDLINE_PROCESS ITERATIONS_PROCESS \
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case OPT_RANDOM: \
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{ \
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int fdr = open ("/dev/urandom", O_RDONLY); \
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\
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if (fdr < 0 || read (fdr, &seed, sizeof(seed)) != sizeof (seed)) \
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seed = time (NULL); \
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if (fdr >= 0) \
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close (fdr); \
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do_srandom = 1; \
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break; \
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} \
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\
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case OPT_SEED: \
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seed = strtoul (optarg, NULL, 0); \
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do_srandom = 1; \
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break;
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#define CALL(impl, ...) \
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(* (proto_t) (impl)->fn) (__VA_ARGS__)
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#define FOR_EACH_IMPL(impl, notall) \
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for (impl_t *impl = __start_impls; impl < __stop_impls; ++impl) \
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if (!notall || impl->test)
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#define HP_TIMING_BEST(best_time, start, end) \
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do \
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{ \
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hp_timing_t tmptime; \
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HP_TIMING_DIFF (tmptime, start + _dl_hp_timing_overhead, end); \
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if (best_time > tmptime) \
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best_time = tmptime; \
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} \
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while (0)
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static void
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test_init (void)
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{
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page_size = 2 * getpagesize ();
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#ifdef MIN_PAGE_SIZE
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if (page_size < MIN_PAGE_SIZE)
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page_size = MIN_PAGE_SIZE;
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#endif
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buf1 = mmap (0, 2 * page_size, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANON, -1, 0);
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if (buf1 == MAP_FAILED)
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error (EXIT_FAILURE, errno, "mmap failed");
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if (mprotect (buf1 + page_size, page_size, PROT_NONE))
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error (EXIT_FAILURE, errno, "mprotect failed");
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buf2 = mmap (0, 2 * page_size, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANON, -1, 0);
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if (buf2 == MAP_FAILED)
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error (EXIT_FAILURE, errno, "mmap failed");
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if (mprotect (buf2 + page_size, page_size, PROT_NONE))
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error (EXIT_FAILURE, errno, "mprotect failed");
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HP_TIMING_DIFF_INIT ();
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if (do_srandom)
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{
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printf ("Setting seed to 0x%x\n", seed);
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srandom (seed);
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}
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memset (buf1, 0xa5, page_size);
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memset (buf2, 0x5a, page_size);
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}
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#endif
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