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