93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/*
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* Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
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* 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#if defined __powerpc64__ \
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|| (defined __sparc__ && defined __arch64__)
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/* Old sigreturn is defined but not implemented in the kernel. */
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# undef __NR_sigreturn
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#endif
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#ifdef __NR_sigreturn
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# include <signal.h>
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# include <stdio.h>
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# include <stdlib.h>
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# ifdef ASM_SIGRTMIN
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# define RT_0 ASM_SIGRTMIN
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# else
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/* Linux kernel >= 3.18 defines SIGRTMIN to 32 on all architectures. */
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# define RT_0 32
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# endif
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static void
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handler(int sig)
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{
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}
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int
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main(void)
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{
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static sigset_t set;
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sigemptyset(&set);
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sigaddset(&set, SIGINT);
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sigaddset(&set, SIGUSR2);
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sigaddset(&set, SIGCHLD);
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sigaddset(&set, RT_0 + 3);
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sigaddset(&set, RT_0 + 4);
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sigaddset(&set, RT_0 + 5);
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sigaddset(&set, RT_0 + 26);
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sigaddset(&set, RT_0 + 27);
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if (sigprocmask(SIG_SETMASK, &set, NULL))
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perror_msg_and_fail("sigprocmask");
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sigemptyset(&set);
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/* This should result to old sigreturn. */
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if (signal(SIGUSR1, handler) == SIG_ERR)
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perror_msg_and_fail("sigaction");
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if (raise(SIGUSR1))
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perror_msg_and_fail("raise");
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static const char *const sigs =
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(SIGUSR2 < SIGCHLD) ? "INT USR2 CHLD" : "INT CHLD USR2";
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static const char *const rt_sigs = "RT_3 RT_4 RT_5 RT_26 RT_27";
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printf("sigreturn({mask=[%s %s]}) = 0\n", sigs, rt_sigs);
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_sigreturn")
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#endif
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