11be35a165
To do so, a few dependencies have been imported: * external/bsd/lutok * external/mit/lua * external/public-domain/sqlite * external/public-domain/xz The Kyua framework is the new generation of ATF (Automated Test Framework), it is composed of: * external/bsd/atf * external/bsd/kyua-atf-compat * external/bsd/kyua-cli * external/bsd/kyua-tester * tests Kyua/ATF being written in C++, it depends on libstdc++ which is provided by GCC. As this is not part of the sources, Kyua is only compiled when the native GCC utils are installed. To install Kyua do the following: * In a cross-build enviromnent, add the following to the build.sh commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes WARNING: At this point the import is still experimental, and not supported on native builds (a.k.a make build). Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
239 lines
6.2 KiB
C
239 lines
6.2 KiB
C
/* $NetBSD: t_bitops.c,v 1.16 2012/12/07 02:28:19 christos Exp $ */
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/*-
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* Copyright (c) 2011, 2012 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas and Jukka Ruohonen.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: t_bitops.c,v 1.16 2012/12/07 02:28:19 christos Exp $");
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#include <atf-c.h>
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#include <sys/cdefs.h>
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#include <sys/bitops.h>
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#include <math.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include <string.h>
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static const struct {
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uint32_t val;
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int ffs;
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int fls;
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} bits[] = {
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{ 0x00, 0, 0 }, { 0x01, 1, 1 }, { 0x02, 2, 2 }, { 0x03, 1, 2 },
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{ 0x04, 3, 3 }, { 0x05, 1, 3 }, { 0x06, 2, 3 }, { 0x07, 1, 3 },
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{ 0x08, 4, 4 }, { 0x09, 1, 4 }, { 0x0A, 2, 4 }, { 0x0B, 1, 4 },
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{ 0x0C, 3, 4 }, { 0x0D, 1, 4 }, { 0x0E, 2, 4 }, { 0x0F, 1, 4 },
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{ 0x10, 5, 5 }, { 0x11, 1, 5 }, { 0x12, 2, 5 }, { 0x13, 1, 5 },
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{ 0x14, 3, 5 }, { 0x15, 1, 5 }, { 0x16, 2, 5 }, { 0x17, 1, 5 },
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{ 0x18, 4, 5 }, { 0x19, 1, 5 }, { 0x1A, 2, 5 }, { 0x1B, 1, 5 },
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{ 0x1C, 3, 5 }, { 0x1D, 1, 5 }, { 0x1E, 2, 5 }, { 0x1F, 1, 5 },
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{ 0xF0, 5, 8 }, { 0xF1, 1, 8 }, { 0xF2, 2, 8 }, { 0xF3, 1, 8 },
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{ 0xF4, 3, 8 }, { 0xF5, 1, 8 }, { 0xF6, 2, 8 }, { 0xF7, 1, 8 },
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{ 0xF8, 4, 8 }, { 0xF9, 1, 8 }, { 0xFA, 2, 8 }, { 0xFB, 1, 8 },
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{ 0xFC, 3, 8 }, { 0xFD, 1, 8 }, { 0xFE, 2, 8 }, { 0xFF, 1, 8 },
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};
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ATF_TC(bitmap_basic);
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ATF_TC_HEAD(bitmap_basic, tc)
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{
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atf_tc_set_md_var(tc, "descr", "A basic test of __BITMAP_*");
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}
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ATF_TC_BODY(bitmap_basic, tc)
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{
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__BITMAP_TYPE(, uint32_t, 65536) bm;
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__BITMAP_ZERO(&bm);
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ATF_REQUIRE(__BITMAP_SIZE(uint32_t, 65536) == 2048);
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ATF_REQUIRE(__BITMAP_SHIFT(uint32_t) == 5);
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ATF_REQUIRE(__BITMAP_MASK(uint32_t) == 31);
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for (size_t i = 0; i < 65536; i += 2)
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__BITMAP_SET(i, &bm);
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for (size_t i = 0; i < 2048; i++)
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ATF_REQUIRE(bm._b[i] == 0x55555555);
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for (size_t i = 0; i < 65536; i++)
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if (i & 1)
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ATF_REQUIRE(!__BITMAP_ISSET(i, &bm));
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else {
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ATF_REQUIRE(__BITMAP_ISSET(i, &bm));
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__BITMAP_CLR(i, &bm);
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}
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for (size_t i = 0; i < 65536; i += 2)
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ATF_REQUIRE(!__BITMAP_ISSET(i, &bm));
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}
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ATF_TC(fast_divide32);
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ATF_TC_HEAD(fast_divide32, tc)
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{
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atf_tc_set_md_var(tc, "descr", "A basic test of fast_divide32(3)");
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}
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ATF_TC_BODY(fast_divide32, tc)
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{
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uint32_t a, b, q, r, m;
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uint8_t i, s1, s2;
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a = 0xFFFF;
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b = 0x000F;
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fast_divide32_prepare(b, &m, &s1, &s2);
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q = fast_divide32(a, b, m, s1, s2);
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r = fast_remainder32(a, b, m, s1, s2);
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ATF_REQUIRE(q == 0x1111 && r == 0);
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for (i = 1; i < __arraycount(bits); i++) {
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a = bits[i].val;
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b = bits[i].ffs;
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fast_divide32_prepare(b, &m, &s1, &s2);
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q = fast_divide32(a, b, m, s1, s2);
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r = fast_remainder32(a, b, m, s1, s2);
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ATF_REQUIRE(q == a / b);
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ATF_REQUIRE(r == a % b);
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}
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}
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ATF_TC(ffsfls);
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ATF_TC_HEAD(ffsfls, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test ffs32(3)-family for correctness");
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}
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ATF_TC_BODY(ffsfls, tc)
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{
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uint8_t i;
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ATF_REQUIRE(ffs32(0) == 0x00);
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ATF_REQUIRE(fls32(0) == 0x00);
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ATF_REQUIRE(ffs64(0) == 0x00);
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ATF_REQUIRE(fls64(0) == 0x00);
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ATF_REQUIRE(ffs32(UINT32_MAX) == 0x01);
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ATF_REQUIRE(fls32(UINT32_MAX) == 0x20);
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ATF_REQUIRE(ffs64(UINT64_MAX) == 0x01);
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ATF_REQUIRE(fls64(UINT64_MAX) == 0x40);
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for (i = 1; i < __arraycount(bits); i++) {
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ATF_REQUIRE(ffs32(bits[i].val) == bits[i].ffs);
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ATF_REQUIRE(fls32(bits[i].val) == bits[i].fls);
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ATF_REQUIRE(ffs64(bits[i].val) == bits[i].ffs);
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ATF_REQUIRE(fls64(bits[i].val) == bits[i].fls);
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ATF_REQUIRE(ffs32(bits[i].val << 1) == bits[i].ffs + 1);
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ATF_REQUIRE(fls32(bits[i].val << 1) == bits[i].fls + 1);
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ATF_REQUIRE(ffs64(bits[i].val << 1) == bits[i].ffs + 1);
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ATF_REQUIRE(fls64(bits[i].val << 1) == bits[i].fls + 1);
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ATF_REQUIRE(ffs32(bits[i].val << 9) == bits[i].ffs + 9);
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ATF_REQUIRE(fls32(bits[i].val << 9) == bits[i].fls + 9);
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ATF_REQUIRE(ffs64(bits[i].val << 9) == bits[i].ffs + 9);
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ATF_REQUIRE(fls64(bits[i].val << 9) == bits[i].fls + 9);
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}
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}
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ATF_TC(ilog2_basic);
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ATF_TC_HEAD(ilog2_basic, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test ilog2(3) for correctness");
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}
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ATF_TC_BODY(ilog2_basic, tc)
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{
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uint64_t i, x;
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for (i = x = 0; i < 64; i++) {
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x = (uint64_t)1 << i;
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ATF_REQUIRE(i == (uint64_t)ilog2(x));
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}
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}
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ATF_TC(ilog2_log2);
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ATF_TC_HEAD(ilog2_log2, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test log2(3) vs. ilog2(3)");
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}
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ATF_TC_BODY(ilog2_log2, tc)
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{
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#ifdef __vax__
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atf_tc_skip("Test is unavailable on vax because of lack of log2()");
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#else
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double x, y;
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uint64_t i;
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/*
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* This may fail under QEMU; see PR misc/44767.
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*/
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for (i = 1; i < UINT32_MAX; i += UINT16_MAX) {
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x = log2(i);
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y = (double)(ilog2(i));
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ATF_REQUIRE(ceil(x) >= y);
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if (fabs(floor(x) - y) > 1.0e-40) {
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atf_tc_expect_fail("PR misc/44767");
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atf_tc_fail("log2(%"PRIu64") != "
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"ilog2(%"PRIu64")", i, i);
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}
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}
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#endif
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, bitmap_basic);
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ATF_TP_ADD_TC(tp, fast_divide32);
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ATF_TP_ADD_TC(tp, ffsfls);
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ATF_TP_ADD_TC(tp, ilog2_basic);
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ATF_TP_ADD_TC(tp, ilog2_log2);
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return atf_no_error();
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}
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