FreeBSD/Linux Kernel Cross Reference
sys/compat/linux32/common/linux32_wait.c

     /*      $NetBSD: linux32_wait.c,v 1.8 2008/04/24 18:39:23 ad Exp $ */
     
     /*-
      * Copyright (c) 2006 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Emmanuel Dreyfus
     * 4. The name of the author may not be used to endorse or promote 
     *    products derived from this software without specific prior written 
     *    permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR 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 AUTHOR 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>
    
    __KERNEL_RCSID(0, "$NetBSD: linux32_wait.c,v 1.8 2008/04/24 18:39:23 ad Exp $");
    
    #include <sys/types.h>
    #include <sys/param.h>
    #include <sys/fstypes.h>
    #include <sys/signal.h>
    #include <sys/dirent.h>
    #include <sys/kernel.h>
    #include <sys/fcntl.h>
    #include <sys/select.h>
    #include <sys/proc.h>
    #include <sys/ucred.h>
    #include <sys/swap.h>
    #include <sys/wait.h>
    
    #include <machine/types.h>
    
    #include <sys/syscallargs.h>
    
    #include <compat/netbsd32/netbsd32.h>
    #include <compat/netbsd32/netbsd32_conv.h>
    #include <compat/netbsd32/netbsd32_syscallargs.h>
    
    #include <compat/linux/common/linux_types.h>
    #include <compat/linux/common/linux_signal.h>
    #include <compat/linux/common/linux_machdep.h>
    #include <compat/linux/common/linux_misc.h>
    #include <compat/linux/common/linux_oldolduname.h>
    #include <compat/linux/linux_syscallargs.h>
    
    #include <compat/linux32/common/linux32_types.h>
    #include <compat/linux32/common/linux32_signal.h>
    #include <compat/linux32/common/linux32_machdep.h>
    #include <compat/linux32/common/linux32_sysctl.h>
    #include <compat/linux32/common/linux32_socketcall.h>
    #include <compat/linux32/linux32_syscallargs.h>
    
    int
    linux32_sys_waitpid(struct lwp *l, const struct linux32_sys_waitpid_args *uap, register_t *retval)
    {
            /* {
                    syscallarg(int) pid;
                    syscallarg(netbsd32_intp) status;
                    syscallarg(int) options;
            } */
            struct linux32_sys_wait4_args ua;
    
            SCARG(&ua, pid) = SCARG(uap, pid);
            SCARG(&ua, status) = SCARG(uap, status);
            SCARG(&ua, options) = SCARG(uap, options);
            NETBSD32PTR32(SCARG(&ua, rusage), NULL);
    
            return linux32_sys_wait4(l, &ua, retval);       
    }
    
    int
    linux32_sys_wait4(struct lwp *l, const struct linux32_sys_wait4_args *uap, register_t *retval)
    {
            /* {
                    syscallarg(int) pid;
                    syscallarg(netbsd32_intp) status;
                    syscallarg(int) options;
                    syscallarg(netbsd32_rusagep_t) rusage;
            } */
           int error, status, linux_options, options, was_zombie;
           struct rusage ru;
           struct netbsd32_rusage ru32;
           proc_t *p;
           int pid;
   
           linux_options = SCARG(uap, options);
           options = WOPTSCHECKED;
           if (linux_options & ~(LINUX_WAIT4_KNOWNFLAGS))
                   return EINVAL;
   
           if (linux_options & LINUX_WAIT4_WNOHANG)
                   options |= WNOHANG;
           if (linux_options & LINUX_WAIT4_WUNTRACED)
                   options |= WUNTRACED;
           if (linux_options & LINUX_WAIT4_WALL)
                   options |= WALLSIG;
           if (linux_options & LINUX_WAIT4_WCLONE)
                   options |= WALTSIG;
   
           pid = SCARG(uap, pid);
           error = do_sys_wait(l, &pid, &status, options,
               SCARG_P32(uap, rusage) != NULL ? &ru : NULL, &was_zombie);
           retval[0] = pid;
           if (pid == 0)
                   return error;
   
           p = curproc;
           mutex_enter(p->p_lock);
           sigdelset(&p->p_sigpend.sp_set, SIGCHLD);       /* XXXAD ksiginfo leak */
           mutex_exit(p->p_lock);
   
           if (SCARG_P32(uap, rusage) != NULL) {
                   netbsd32_from_rusage(&ru, &ru32);
                   error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
           }
   
           if (error == 0 && SCARG_P32(uap, status) != NULL) {
                   status = bsd_to_linux_wstat(status);
                   error = copyout(&status, SCARG_P32(uap, status), sizeof(status));
           }
   
           return error;
   }

Cache object: 0742966640c5ef81eb9f361850826e91