145 lines
4.7 KiB
C
145 lines
4.7 KiB
C
/* $NetBSD: linux32_wait.c,v 1.12 2016/11/10 17:00:51 christos Exp $ */
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/*-
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* Copyright (c) 2006 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Emmanuel Dreyfus
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* 4. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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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__KERNEL_RCSID(0, "$NetBSD: linux32_wait.c,v 1.12 2016/11/10 17:00:51 christos Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/fstypes.h>
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#include <sys/signal.h>
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#include <sys/dirent.h>
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#include <sys/kernel.h>
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#include <sys/fcntl.h>
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#include <sys/select.h>
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#include <sys/proc.h>
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#include <sys/ucred.h>
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#include <sys/swap.h>
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#include <sys/wait.h>
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#include <machine/types.h>
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#include <sys/syscallargs.h>
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#include <compat/netbsd32/netbsd32.h>
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#include <compat/netbsd32/netbsd32_conv.h>
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#include <compat/netbsd32/netbsd32_syscallargs.h>
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#include <compat/linux/common/linux_types.h>
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#include <compat/linux/common/linux_signal.h>
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#include <compat/linux/common/linux_machdep.h>
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#include <compat/linux/common/linux_misc.h>
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#include <compat/linux/common/linux_oldolduname.h>
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#include <compat/linux/common/linux_ipc.h>
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#include <compat/linux/common/linux_sem.h>
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#include <compat/linux/linux_syscallargs.h>
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#include <compat/linux32/common/linux32_types.h>
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#include <compat/linux32/common/linux32_signal.h>
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#include <compat/linux32/common/linux32_machdep.h>
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#include <compat/linux32/common/linux32_sysctl.h>
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#include <compat/linux32/common/linux32_socketcall.h>
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#include <compat/linux32/linux32_syscallargs.h>
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int
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linux32_sys_waitpid(struct lwp *l, const struct linux32_sys_waitpid_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) pid;
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syscallarg(netbsd32_intp) status;
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syscallarg(int) options;
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} */
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struct linux32_sys_wait4_args ua;
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SCARG(&ua, pid) = SCARG(uap, pid);
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SCARG(&ua, status) = SCARG(uap, status);
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SCARG(&ua, options) = SCARG(uap, options);
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NETBSD32PTR32(SCARG(&ua, rusage), NULL);
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return linux32_sys_wait4(l, &ua, retval);
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}
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int
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linux32_sys_wait4(struct lwp *l, const struct linux32_sys_wait4_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) pid;
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syscallarg(netbsd32_intp) status;
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syscallarg(int) options;
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syscallarg(netbsd32_rusage50p_t) rusage;
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} */
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int error, status, linux_options, options, pid;
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struct netbsd32_rusage50 ru32;
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struct rusage ru;
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proc_t *p;
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linux_options = SCARG(uap, options);
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if (linux_options & ~(LINUX_WAIT4_KNOWNFLAGS))
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return EINVAL;
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options = 0;
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if (linux_options & LINUX_WAIT4_WNOHANG)
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options |= WNOHANG;
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if (linux_options & LINUX_WAIT4_WUNTRACED)
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options |= WUNTRACED;
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if (linux_options & LINUX_WAIT4_WALL)
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options |= WALLSIG;
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if (linux_options & LINUX_WAIT4_WCLONE)
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options |= WALTSIG;
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pid = SCARG(uap, pid);
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error = do_sys_wait(&pid, &status, options,
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SCARG_P32(uap, rusage) != NULL ? &ru : NULL);
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retval[0] = pid;
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if (pid == 0)
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return error;
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p = curproc;
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mutex_enter(p->p_lock);
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sigdelset(&p->p_sigpend.sp_set, SIGCHLD); /* XXXAD ksiginfo leak */
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mutex_exit(p->p_lock);
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if (SCARG_P32(uap, rusage) != NULL) {
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netbsd32_from_rusage50(&ru, &ru32);
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error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
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}
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if (error == 0 && SCARG_P32(uap, status) != NULL) {
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status = bsd_to_linux_wstat(status);
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error = copyout(&status, SCARG_P32(uap, status), sizeof(status));
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}
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return error;
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}
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