1272343Sngie/* $NetBSD: t_bswap.c,v 1.1 2011/05/05 05:39:11 jruoho Exp $ */ 2272343Sngie 3272343Sngie/*- 4272343Sngie * Copyright (c) 2011 The NetBSD Foundation, Inc. 5272343Sngie * All rights reserved. 6272343Sngie * 7272343Sngie * This code is derived from software contributed to The NetBSD Foundation 8272343Sngie * by Jukka Ruohonen. 9272343Sngie * 10272343Sngie * Redistribution and use in source and binary forms, with or without 11272343Sngie * modification, are permitted provided that the following conditions 12272343Sngie * are met: 13272343Sngie * 1. Redistributions of source code must retain the above copyright 14272343Sngie * notice, this list of conditions and the following disclaimer. 15272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 16272343Sngie * notice, this list of conditions and the following disclaimer in the 17272343Sngie * documentation and/or other materials provided with the distribution. 18272343Sngie * 19272343Sngie * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20272343Sngie * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21272343Sngie * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22272343Sngie * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23272343Sngie * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24272343Sngie * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25272343Sngie * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26272343Sngie * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27272343Sngie * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28272343Sngie * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29272343Sngie * POSSIBILITY OF SUCH DAMAGE. 30272343Sngie */ 31272343Sngie#include <sys/cdefs.h> 32272343Sngie__RCSID("$NetBSD: t_bswap.c,v 1.1 2011/05/05 05:39:11 jruoho Exp $"); 33272343Sngie 34272343Sngie#include <sys/types.h> 35272343Sngie#include <machine/bswap.h> 36272343Sngie 37272343Sngie#include <atf-c.h> 38272343Sngie 39272343Sngiestatic uint16_t x16; 40272343Sngiestatic uint32_t x32; 41272343Sngiestatic uint64_t x64; 42272343Sngie 43272343Sngiestatic uint16_t unconst16(uint16_t); 44272343Sngiestatic uint32_t unconst32(uint32_t); 45272343Sngiestatic uint64_t unconst64(uint64_t); 46272343Sngie 47272343Sngie/* 48272343Sngie * Given the use of __builtin_constant_p(3), 49272343Sngie * these functions try to avoid gcc(1) from 50272343Sngie * treating the arguments as constants. 51272343Sngie */ 52272343Sngiestatic uint16_t 53272343Sngieunconst16(uint16_t val) 54272343Sngie{ 55272343Sngie return val + x16; 56272343Sngie} 57272343Sngie 58272343Sngiestatic uint32_t 59272343Sngieunconst32(uint32_t val) 60272343Sngie{ 61272343Sngie return val + x32; 62272343Sngie} 63272343Sngie 64272343Sngiestatic uint64_t 65272343Sngieunconst64(uint64_t val) 66272343Sngie{ 67272343Sngie return val + x64; 68272343Sngie} 69272343Sngie 70272343SngieATF_TC(bswap16_basic); 71272343SngieATF_TC_HEAD(bswap16_basic, tc) 72272343Sngie{ 73272343Sngie atf_tc_set_md_var(tc, "descr", "A naive test of bswap16(3), #1"); 74272343Sngie} 75272343Sngie 76272343SngieATF_TC_BODY(bswap16_basic, tc) 77272343Sngie{ 78272343Sngie ATF_REQUIRE_EQ(bswap16(0x0000), 0x0000); 79272343Sngie ATF_REQUIRE_EQ(bswap16(0xff00), 0x00ff); 80272343Sngie ATF_REQUIRE_EQ(bswap16(0xffff), 0xffff); 81272343Sngie ATF_REQUIRE_EQ(bswap16(0x1234), 0x3412); 82272343Sngie} 83272343Sngie 84272343SngieATF_TC(bswap16_unconst); 85272343SngieATF_TC_HEAD(bswap16_unconst, tc) 86272343Sngie{ 87272343Sngie atf_tc_set_md_var(tc, "descr", "A naive test of bswap16(3), #2"); 88272343Sngie} 89272343Sngie 90272343SngieATF_TC_BODY(bswap16_unconst, tc) 91272343Sngie{ 92272343Sngie x16 = 0; 93272343Sngie 94272343Sngie ATF_REQUIRE_EQ(bswap16(unconst16(0x0000)), 0x0000); 95272343Sngie ATF_REQUIRE_EQ(bswap16(unconst16(0xff00)), 0x00ff); 96272343Sngie ATF_REQUIRE_EQ(bswap16(unconst16(0xffff)), 0xffff); 97272343Sngie ATF_REQUIRE_EQ(bswap16(unconst16(0x1234)), 0x3412); 98272343Sngie} 99272343Sngie 100272343SngieATF_TC(bswap32_basic); 101272343SngieATF_TC_HEAD(bswap32_basic, tc) 102272343Sngie{ 103272343Sngie atf_tc_set_md_var(tc, "descr", "A naive test of bswap32(3), #1"); 104272343Sngie} 105272343Sngie 106272343SngieATF_TC_BODY(bswap32_basic, tc) 107272343Sngie{ 108272343Sngie ATF_REQUIRE_EQ(bswap32(0x00000000), 0x00000000); 109272343Sngie ATF_REQUIRE_EQ(bswap32(0xffff0000), 0x0000ffff); 110272343Sngie ATF_REQUIRE_EQ(bswap32(0xffffffff), 0xffffffff); 111272343Sngie ATF_REQUIRE_EQ(bswap32(0x12345678), 0x78563412); 112272343Sngie} 113272343Sngie 114272343SngieATF_TC(bswap32_unconst); 115272343SngieATF_TC_HEAD(bswap32_unconst, tc) 116272343Sngie{ 117272343Sngie atf_tc_set_md_var(tc, "descr", "A naive test of bswap32(3), #2"); 118272343Sngie} 119272343Sngie 120272343SngieATF_TC_BODY(bswap32_unconst, tc) 121272343Sngie{ 122272343Sngie x32 = 0; 123272343Sngie 124272343Sngie ATF_REQUIRE_EQ(bswap32(unconst32(0x00000000)), 0x00000000); 125272343Sngie ATF_REQUIRE_EQ(bswap32(unconst32(0xffff0000)), 0x0000ffff); 126272343Sngie ATF_REQUIRE_EQ(bswap32(unconst32(0xffffffff)), 0xffffffff); 127272343Sngie ATF_REQUIRE_EQ(bswap32(unconst32(0x12345678)), 0x78563412); 128272343Sngie} 129272343Sngie 130272343SngieATF_TC(bswap64_basic); 131272343SngieATF_TC_HEAD(bswap64_basic, tc) 132272343Sngie{ 133272343Sngie atf_tc_set_md_var(tc, "descr", "A naive test of bswap64(3), #1"); 134272343Sngie} 135272343Sngie 136272343SngieATF_TC_BODY(bswap64_basic, tc) 137272343Sngie{ 138272343Sngie ATF_REQUIRE_EQ(bswap64(0x0000000000000000), 0x0000000000000000); 139272343Sngie ATF_REQUIRE_EQ(bswap64(0xffffffff00000000), 0x00000000ffffffff); 140272343Sngie ATF_REQUIRE_EQ(bswap64(0xffffffffffffffff), 0xffffffffffffffff); 141272343Sngie ATF_REQUIRE_EQ(bswap64(0x123456789abcdeff), 0xffdebc9a78563412); 142272343Sngie} 143272343Sngie 144272343SngieATF_TC(bswap64_unconst); 145272343SngieATF_TC_HEAD(bswap64_unconst, tc) 146272343Sngie{ 147272343Sngie atf_tc_set_md_var(tc, "descr", "A naive test of bswap64(3), #2"); 148272343Sngie} 149272343Sngie 150272343SngieATF_TC_BODY(bswap64_unconst, tc) 151272343Sngie{ 152272343Sngie x64 = 0; 153272343Sngie 154272343Sngie ATF_REQUIRE_EQ(bswap64(unconst64(0x0000000000000000)), 155272343Sngie 0x0000000000000000); 156272343Sngie 157272343Sngie ATF_REQUIRE_EQ(bswap64(unconst64(0xffffffff00000000)), 158272343Sngie 0x00000000ffffffff); 159272343Sngie 160272343Sngie ATF_REQUIRE_EQ(bswap64(unconst64(0xffffffffffffffff)), 161272343Sngie 0xffffffffffffffff); 162272343Sngie 163272343Sngie ATF_REQUIRE_EQ(bswap64(unconst64(0x123456789abcdeff)), 164272343Sngie 0xffdebc9a78563412); 165272343Sngie} 166272343Sngie 167272343SngieATF_TP_ADD_TCS(tp) 168272343Sngie{ 169272343Sngie 170272343Sngie ATF_TP_ADD_TC(tp, bswap16_basic); 171272343Sngie ATF_TP_ADD_TC(tp, bswap16_unconst); 172272343Sngie ATF_TP_ADD_TC(tp, bswap32_basic); 173272343Sngie ATF_TP_ADD_TC(tp, bswap32_unconst); 174272343Sngie ATF_TP_ADD_TC(tp, bswap64_basic); 175272343Sngie ATF_TP_ADD_TC(tp, bswap64_unconst); 176272343Sngie 177272343Sngie return atf_no_error(); 178272343Sngie} 179