diff options
Diffstat (limited to 'contrib/netbsd-tests/include/machine/t_bswap.c')
| -rw-r--r-- | contrib/netbsd-tests/include/machine/t_bswap.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/include/machine/t_bswap.c b/contrib/netbsd-tests/include/machine/t_bswap.c new file mode 100644 index 0000000..a7bb42a --- /dev/null +++ b/contrib/netbsd-tests/include/machine/t_bswap.c @@ -0,0 +1,178 @@ +/* $NetBSD: t_bswap.c,v 1.1 2011/05/05 05:39:11 jruoho Exp $ */ + +/*- + * Copyright (c) 2011 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jukka Ruohonen. + * + * 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 <sys/cdefs.h> +__RCSID("$NetBSD: t_bswap.c,v 1.1 2011/05/05 05:39:11 jruoho Exp $"); + +#include <sys/types.h> +#include <machine/bswap.h> + +#include <atf-c.h> + +static uint16_t x16; +static uint32_t x32; +static uint64_t x64; + +static uint16_t unconst16(uint16_t); +static uint32_t unconst32(uint32_t); +static uint64_t unconst64(uint64_t); + +/* + * Given the use of __builtin_constant_p(3), + * these functions try to avoid gcc(1) from + * treating the arguments as constants. + */ +static uint16_t +unconst16(uint16_t val) +{ + return val + x16; +} + +static uint32_t +unconst32(uint32_t val) +{ + return val + x32; +} + +static uint64_t +unconst64(uint64_t val) +{ + return val + x64; +} + +ATF_TC(bswap16_basic); +ATF_TC_HEAD(bswap16_basic, tc) +{ + atf_tc_set_md_var(tc, "descr", "A naive test of bswap16(3), #1"); +} + +ATF_TC_BODY(bswap16_basic, tc) +{ + ATF_REQUIRE_EQ(bswap16(0x0000), 0x0000); + ATF_REQUIRE_EQ(bswap16(0xff00), 0x00ff); + ATF_REQUIRE_EQ(bswap16(0xffff), 0xffff); + ATF_REQUIRE_EQ(bswap16(0x1234), 0x3412); +} + +ATF_TC(bswap16_unconst); +ATF_TC_HEAD(bswap16_unconst, tc) +{ + atf_tc_set_md_var(tc, "descr", "A naive test of bswap16(3), #2"); +} + +ATF_TC_BODY(bswap16_unconst, tc) +{ + x16 = 0; + + ATF_REQUIRE_EQ(bswap16(unconst16(0x0000)), 0x0000); + ATF_REQUIRE_EQ(bswap16(unconst16(0xff00)), 0x00ff); + ATF_REQUIRE_EQ(bswap16(unconst16(0xffff)), 0xffff); + ATF_REQUIRE_EQ(bswap16(unconst16(0x1234)), 0x3412); +} + +ATF_TC(bswap32_basic); +ATF_TC_HEAD(bswap32_basic, tc) +{ + atf_tc_set_md_var(tc, "descr", "A naive test of bswap32(3), #1"); +} + +ATF_TC_BODY(bswap32_basic, tc) +{ + ATF_REQUIRE_EQ(bswap32(0x00000000), 0x00000000); + ATF_REQUIRE_EQ(bswap32(0xffff0000), 0x0000ffff); + ATF_REQUIRE_EQ(bswap32(0xffffffff), 0xffffffff); + ATF_REQUIRE_EQ(bswap32(0x12345678), 0x78563412); +} + +ATF_TC(bswap32_unconst); +ATF_TC_HEAD(bswap32_unconst, tc) +{ + atf_tc_set_md_var(tc, "descr", "A naive test of bswap32(3), #2"); +} + +ATF_TC_BODY(bswap32_unconst, tc) +{ + x32 = 0; + + ATF_REQUIRE_EQ(bswap32(unconst32(0x00000000)), 0x00000000); + ATF_REQUIRE_EQ(bswap32(unconst32(0xffff0000)), 0x0000ffff); + ATF_REQUIRE_EQ(bswap32(unconst32(0xffffffff)), 0xffffffff); + ATF_REQUIRE_EQ(bswap32(unconst32(0x12345678)), 0x78563412); +} + +ATF_TC(bswap64_basic); +ATF_TC_HEAD(bswap64_basic, tc) +{ + atf_tc_set_md_var(tc, "descr", "A naive test of bswap64(3), #1"); +} + +ATF_TC_BODY(bswap64_basic, tc) +{ + ATF_REQUIRE_EQ(bswap64(0x0000000000000000), 0x0000000000000000); + ATF_REQUIRE_EQ(bswap64(0xffffffff00000000), 0x00000000ffffffff); + ATF_REQUIRE_EQ(bswap64(0xffffffffffffffff), 0xffffffffffffffff); + ATF_REQUIRE_EQ(bswap64(0x123456789abcdeff), 0xffdebc9a78563412); +} + +ATF_TC(bswap64_unconst); +ATF_TC_HEAD(bswap64_unconst, tc) +{ + atf_tc_set_md_var(tc, "descr", "A naive test of bswap64(3), #2"); +} + +ATF_TC_BODY(bswap64_unconst, tc) +{ + x64 = 0; + + ATF_REQUIRE_EQ(bswap64(unconst64(0x0000000000000000)), + 0x0000000000000000); + + ATF_REQUIRE_EQ(bswap64(unconst64(0xffffffff00000000)), + 0x00000000ffffffff); + + ATF_REQUIRE_EQ(bswap64(unconst64(0xffffffffffffffff)), + 0xffffffffffffffff); + + ATF_REQUIRE_EQ(bswap64(unconst64(0x123456789abcdeff)), + 0xffdebc9a78563412); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, bswap16_basic); + ATF_TP_ADD_TC(tp, bswap16_unconst); + ATF_TP_ADD_TC(tp, bswap32_basic); + ATF_TP_ADD_TC(tp, bswap32_unconst); + ATF_TP_ADD_TC(tp, bswap64_basic); + ATF_TP_ADD_TC(tp, bswap64_unconst); + + return atf_no_error(); +} |
