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/* $NetBSD: t___sync_lock.c,v 1.1 2019/02/26 10:01:41 isaki Exp $ */
/*
* Copyright (C) 2019 Tetsuya Isaki. All rights reserved.
*
* 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 AUTHOR ``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 AUTHOR 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 <sys/cdefs.h>
__RCSID("$NetBSD: t___sync_lock.c,v 1.1 2019/02/26 10:01:41 isaki Exp $");
#include <atf-c.h>
#include <inttypes.h>
#include <machine/types.h> // for __HAVE_ATOMIC64_OPS
/*
* These tests don't examine the atomicity.
*/
/* XXX
* Depending on a combination of arch and compiler, __sync_* is
* implemented as compiler's builtin function. In that case, even
* if libc exports the function symbol, it is not used. As a result
* this tests will examine compiler's builtin functions.
* It's better to run only when target is actually in libc.
*/
#define OLDVAL (0x1122334455667788UL)
#define NEWVAL (0x8090a0b0c0d0e0f0UL)
#define atf_sync_tas(NAME, TYPE, FMT) \
ATF_TC(NAME); \
ATF_TC_HEAD(NAME, tc) \
{ \
atf_tc_set_md_var(tc, "descr", #NAME); \
} \
ATF_TC_BODY(NAME, tc) \
{ \
volatile TYPE val; \
TYPE newval; \
TYPE expval; \
TYPE expres; \
TYPE res; \
val = (TYPE)OLDVAL; \
newval = (TYPE)NEWVAL; \
expval = (TYPE)NEWVAL; \
expres = (TYPE)OLDVAL; \
res = NAME(&val, newval); \
ATF_REQUIRE_MSG(val == expval, \
"val expects 0x%" FMT " but 0x%" FMT, expval, val); \
ATF_REQUIRE_MSG(res == expres, \
"res expects 0x%" FMT " but 0x%" FMT, expres, res); \
}
atf_sync_tas(__sync_lock_test_and_set_1, uint8_t, PRIx8);
atf_sync_tas(__sync_lock_test_and_set_2, uint16_t, PRIx16);
atf_sync_tas(__sync_lock_test_and_set_4, uint32_t, PRIx32);
#ifdef __HAVE_ATOMIC64_OPS
atf_sync_tas(__sync_lock_test_and_set_8, uint64_t, PRIx64);
#endif
#define atf_sync_rel(NAME, TYPE, FMT) \
ATF_TC(NAME); \
ATF_TC_HEAD(NAME, tc) \
{ \
atf_tc_set_md_var(tc, "descr", #NAME); \
} \
ATF_TC_BODY(NAME, tc) \
{ \
volatile TYPE val; \
TYPE expval; \
val = (TYPE)OLDVAL; \
expval = (TYPE)0; \
NAME(&val); \
ATF_REQUIRE_MSG(val == expval, \
"val expects 0x%" FMT " but 0x%" FMT, expval, val); \
}
atf_sync_rel(__sync_lock_release_1, uint8_t, PRIx8);
atf_sync_rel(__sync_lock_release_2, uint16_t, PRIx16);
atf_sync_rel(__sync_lock_release_4, uint32_t, PRIx32);
#ifdef __HAVE_ATOMIC64_OPS
atf_sync_rel(__sync_lock_release_8, uint64_t, PRIx64);
#endif
/*
* __sync_synchronize(): This is just a link-time test.
*/
ATF_TC(__sync_synchronize);
ATF_TC_HEAD(__sync_synchronize, tc)
{
atf_tc_set_md_var(tc, "descr", "__sync_synchronize");
}
ATF_TC_BODY(__sync_synchronize, tc)
{
__sync_synchronize();
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, __sync_lock_test_and_set_1);
ATF_TP_ADD_TC(tp, __sync_lock_test_and_set_2);
ATF_TP_ADD_TC(tp, __sync_lock_test_and_set_4);
#ifdef __HAVE_ATOMIC64_OPS
ATF_TP_ADD_TC(tp, __sync_lock_test_and_set_8);
#endif
ATF_TP_ADD_TC(tp, __sync_lock_release_1);
ATF_TP_ADD_TC(tp, __sync_lock_release_2);
ATF_TP_ADD_TC(tp, __sync_lock_release_4);
#ifdef __HAVE_ATOMIC64_OPS
ATF_TP_ADD_TC(tp, __sync_lock_release_8);
#endif
ATF_TP_ADD_TC(tp, __sync_synchronize);
return atf_no_error();
}
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