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
133 lines
3.4 KiB
C
133 lines
3.4 KiB
C
/* $NetBSD: t_swapcontext.c,v 1.3 2013/05/05 10:28:11 skrll Exp $ */
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/*
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* Copyright (c) 2012 Emmanuel Dreyfus. All rights reserved.
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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");
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#include <ucontext.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <lwp.h>
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#include <atf-c.h>
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#define STACKSIZE 65536
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char stack[STACKSIZE];
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ucontext_t nctx;
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ucontext_t octx;
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void *otls;
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void *ntls;
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int val1, val2;
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int alter_tlsbase;
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/* ARGSUSED0 */
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static void
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swapfunc(void *arg)
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{
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ntls = _lwp_getprivate();
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printf("after swapcontext TLS pointer = %p\n", ntls);
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if (alter_tlsbase) {
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ATF_REQUIRE_EQ(ntls, &val1);
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printf("TLS pointer modified by swapcontext()\n");
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} else {
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ATF_REQUIRE_EQ(ntls, &val2);
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printf("TLS pointer left untouched by swapcontext()\n");
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}
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/* Go back in main */
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ATF_REQUIRE(swapcontext(&nctx, &octx));
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/* NOTREACHED */
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return;
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}
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static void
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mainfunc(void)
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{
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printf("Testing if swapcontext() alters TLS pointer if _UC_TLSBASE "
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"is %s\n", (alter_tlsbase) ? "left set" : "cleared");
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_lwp_setprivate(&val1);
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printf("before swapcontext TLS pointer = %p\n", &val1);
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ATF_REQUIRE(getcontext(&nctx) == 0);
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nctx.uc_stack.ss_sp = stack;
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nctx.uc_stack.ss_size = sizeof(stack);
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#ifndef _UC_TLSBASE
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ATF_REQUIRE_MSG(0, "_UC_TLSBASE is not defined");
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#else /* _UC_TLSBASE */
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ATF_REQUIRE(nctx.uc_flags & _UC_TLSBASE);
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if (!alter_tlsbase)
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nctx.uc_flags &= ~_UC_TLSBASE;
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#endif /* _UC_TLSBASE */
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makecontext(&nctx, swapfunc, 0);
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_lwp_setprivate(&val2);
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otls = _lwp_getprivate();
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printf("before swapcontext TLS pointer = %p\n", otls);
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ATF_REQUIRE(swapcontext(&octx, &nctx) == 0);
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printf("Test completed\n");
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}
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ATF_TC(swapcontext1);
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ATF_TC_HEAD(swapcontext1, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Testing if swapcontext() can let "
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"TLS pointer untouched");
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}
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ATF_TC_BODY(swapcontext1, tc)
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{
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alter_tlsbase = 0;
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mainfunc();
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}
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ATF_TC(swapcontext2);
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ATF_TC_HEAD(swapcontext2, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Testing if swapcontext() can "
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"modify TLS pointer");
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}
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ATF_TC_BODY(swapcontext2, tc)
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{
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alter_tlsbase = 1;
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mainfunc();
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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, swapcontext1);
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ATF_TP_ADD_TC(tp, swapcontext2);
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return atf_no_error();
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}
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