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File: [cvs.NetBSD.org] / src / tests / libexec / ld.elf_so / h_locking.c (download)

Revision 1.1, Thu Mar 31 23:34:47 2011 UTC (9 years, 7 months ago) by joerg
Branch: MAIN
CVS Tags: yamt-pagecache-tag8, yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-pagecache, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, phil-wifi-20190609, phil-wifi, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-9-base, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, matt-nb8-mediatek-base, matt-nb8-mediatek, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, localcount-20160914, is-mlppp-base, is-mlppp, cherry-xenmp-base, cherry-xenmp, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, agc-symver-base, agc-symver, HEAD

Add initial regression test for ld.elf_so locking.

/*-
 * Copyright (c) 2011 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Joerg Sonnenberger.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <dlfcn.h>
#include <link_elf.h>
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

int sleep_init;
int sleep_fini;
int dlopen_cookie;
int dlclose_cookie;

void (*tls_callback_sym)(void);

static int
dl_iterate_phdr_cb(struct dl_phdr_info *info, size_t size, void *data)
{
	(*tls_callback_sym)();
	return 0;
}

static void *
test_dl_iterate_phdr_helper(void *dummy)
{
	sleep(10);
	_exit(1);
}

static void
test_dl_iterate_phdr(void)
{
	pthread_t t;
	void *dso;
	sleep_init = 0;
	sleep_fini = 0;
	if ((dso = dlopen("libh_helper_dso2.so", RTLD_LAZY)) == NULL) {
		fprintf(stderr, "opening helper failed\n");
		_exit(1);
	}
	tls_callback_sym = dlsym(dso, "tls_callback");
	if (tls_callback_sym == NULL) {
		fprintf(stderr, "bad helper\n");
		_exit(1);
	}
	pthread_create(&t, NULL, test_dl_iterate_phdr_helper, NULL);
	if (dl_iterate_phdr(dl_iterate_phdr_cb, NULL))
		_exit(1);
	_exit(0);
}

static void *
init_fini_helper(void *arg)
{
	void *dso;
	if ((dso = dlopen(arg, RTLD_LAZY)) == NULL) {
		fprintf(stderr, "opening %s failed\n", (char *)arg);
		exit(1);
	}
	dlclose(dso);
	return NULL;
}

static void
test_dlopen(void)
{
	pthread_t t1, t2;
	sleep_init = 1;
	sleep_fini = 0;
	printf("%d\n", dlopen_cookie);
	pthread_create(&t1, NULL, init_fini_helper,
	    __UNCONST("libh_helper_dso2.so"));
	sleep(1);
	printf("%d\n", dlopen_cookie);
	if (dlopen_cookie != 1)
		_exit(1);
	sleep(1);
	pthread_create(&t2, NULL, init_fini_helper,
	    __UNCONST("libutil.so"));
	printf("%d\n", dlopen_cookie);
	if (dlopen_cookie != 1)
		_exit(1);
	_exit(0);
}

static void
test_dlclose(void)
{
	pthread_t t1, t2;
	sleep_init = 0;
	sleep_fini = 1;
	printf("%d\n", dlclose_cookie);
	pthread_create(&t1, NULL, init_fini_helper,
	    __UNCONST("libh_helper_dso2.so"));
	sleep(1);
	printf("%d\n", dlclose_cookie);
	if (dlclose_cookie != 2)
		_exit(1);
	pthread_create(&t2, NULL, init_fini_helper,
	    __UNCONST("libutil.so"));
	sleep(1);
	printf("%d\n", dlclose_cookie);
	if (dlclose_cookie != 2)
		_exit(1);
	_exit(0);
}

int
main(int argc, char **argv)
{
	if (argc != 2)
		return 1;
	if (strcmp(argv[1], "dl_iterate_phdr") == 0)
		test_dl_iterate_phdr();
	if (strcmp(argv[1], "dlopen") == 0)
		test_dlopen();
	if (strcmp(argv[1], "dlclose") == 0)
		test_dlclose();
	return 1;
}