+++ /dev/null
-/*
- * Copyright (C) 2013 Cloudius Systems, Ltd.
- *
- * Parts are copyright by other contributors. Please refer to copyright notices
- * in the individual source files, and to the git commit log, for a more accurate
- * list of copyright holders.
- *
- * OSv is open-source software, distributed under the 3-clause BSD license:
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * * 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.
- *
- * * Neither the name of the Cloudius Systems, Ltd. nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
- */
-/* adapted from OSv */
-
-#define _GNU_SOURCE
-#include <errno.h>
-#include <signal.h>
-#include <unistd.h>
-
-#include <uk/config.h>
-#include <uk/essentials.h>
-#include <uk/syscall.h>
-#ifndef __NEED_struct_timespec
-#define __NEED_struct_timespec
-#endif
-#include <sys/types.h>
-#include "sigset.h"
-#include "ksigaction.h"
-
-UK_SYSCALL_R_DEFINE(int, sigaltstack, const stack_t *, ss,
- stack_t *, old_ss)
-{
- return 0;
-}
-
-UK_SYSCALL_R_DEFINE(int, rt_sigaction, int, signum,
- const struct k_sigaction *__unused, act,
- struct k_sigaction *, oldact,
- size_t __unused, sigsetsize)
-{
- if (unlikely(signum == SIGKILL || signum == SIGSTOP))
- return -EINVAL;
-
- if (oldact)
- *oldact = (struct k_sigaction){0};
-
- return 0;
-}
-
-#if UK_LIBC_SYSCALLS
-int sigaction(int signum, const struct sigaction __unused *act,
- struct sigaction *oldact)
-{
- /* Not actually an implementation of sigaction.
- * Do minimal argument matching for the stub syscall. */
- int r;
- struct k_sigaction kold;
- r = rt_sigaction(signum, NULL, oldact ? &kold : NULL, sizeof(sigset_t));
- if (oldact && !r) {
- oldact->sa_handler = kold.handler;
- oldact->sa_flags = kold.flags;
- }
- return r;
-}
-
-sighandler_t signal(int signum, sighandler_t handler)
-{
- struct k_sigaction old;
- struct k_sigaction act = {
- .handler = handler,
- .flags = SA_RESTART, /* BSD signal semantics */
- };
-
- if (unlikely(rt_sigaction(signum, &act, &old, sizeof(sigset_t)) < 0))
- return SIG_ERR;
-
- return (old.flags & SA_SIGINFO) ? NULL : old.handler;
-}
-#endif /* UK_LIBC_SYSCALLS */
-
-UK_SYSCALL_R_DEFINE(int, rt_sigpending,
- sigset_t *, set,
- size_t __unused, sigsetsize)
-{
- sigemptyset(set);
-
- return 0;
-}
-
-#if UK_LIBC_SYSCALLS
-int sigpending(sigset_t *set)
-{
- return rt_sigpending(set, sizeof(sigset_t));
-}
-#endif /* UK_LIBC_SYSCALLS */
-
-UK_SYSCALL_R_DEFINE(int, rt_sigprocmask,
- int __unused, how,
- const sigset_t *__unused, set,
- sigset_t *__unused, oldset,
- size_t __unused, sigsetsize)
-{
- return 0;
-}
-
-#if UK_LIBC_SYSCALLS
-int sigprocmask(int how, const sigset_t *set, sigset_t *oldset)
-{
- return rt_sigprocmask(how, set, oldset, sizeof(sigset_t));
-}
-#endif /* UK_LIBC_SYSCALLS */
-
-UK_SYSCALL_R_DEFINE(int, rt_sigsuspend,
- const sigset_t *__unused, mask,
- size_t __unused, sigsetsize)
-{
- return -EINTR;
-}
-
-#if UK_LIBC_SYSCALLS
-int sigsuspend(const sigset_t *mask)
-{
- return rt_sigsuspend(mask, sizeof(sigset_t));
-}
-#endif /* UK_LIBC_SYSCALLS */
-
-UK_SYSCALL_R_DEFINE(int, rt_sigtimedwait,
- const sigset_t *__unused, set,
- siginfo_t *, info,
- const struct timespec *__unused, timeout,
- size_t __unused, sigsetsize)
-{
- *info = (siginfo_t){0};
- info->si_signo = SIGINT;
-
- return 0;
-}
-
-#if UK_LIBC_SYSCALLS
-int sigwait(const sigset_t *set, int *sig)
-{
- int error;
- siginfo_t si;
-
- error = rt_sigtimedwait(set, &si, NULL, sizeof(sigset_t));
- *sig = si.si_signo;
-
- return error;
-}
-#endif /* UK_LIBC_SYSCALLS */
-
-UK_SYSCALL_R_DEFINE(int, tkill,
- int __unused, tid,
- int __unused, sig)
-{
- return 0;
-}
-
-#if UK_LIBC_SYSCALLS
-int raise(int sig)
-{
- return tkill(-1, sig);
-}
-#endif /* UK_LIBC_SYSCALLS */
-
-UK_SYSCALL_R_DEFINE(int, kill,
- pid_t, pid,
- int __unused, sig)
-{
- if (unlikely(pid != 0))
- return -ESRCH;
-
- return 0;
-}
-
-#if UK_LIBC_SYSCALLS
-int killpg(int pgrp, int sig)
-{
- return kill(-pgrp, sig);
-}
-#endif /* UK_LIBC_SYSCALLS */
-
-UK_SYSCALL_R_DEFINE(unsigned int, alarm,
- unsigned int __unused, seconds)
-{
- return 0;
-}
-
-#if UK_LIBC_SYSCALLS
-int siginterrupt(int sig __unused, int flag __unused)
-{
- return 0;
-}
-#endif /* UK_LIBC_SYSCALLS */
-
-UK_SYSCALL_R_DEFINE(int, pause)
-{
- return 0;
-}
projects / unikraft / unikraft.git / commitdiff