| 1 | /* $NetBSD: linux32_wait.c,v 1.12 2016/11/10 17:00:51 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. All advertising materials mentioning features or use of this software |
| 15 | * must display the following acknowledgement: |
| 16 | * This product includes software developed by Emmanuel Dreyfus |
| 17 | * 4. The name of the author may not be used to endorse or promote |
| 18 | * products derived from this software without specific prior written |
| 19 | * permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' |
| 22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 23 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 24 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS |
| 25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 31 | * POSSIBILITY OF SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | #include <sys/cdefs.h> |
| 35 | |
| 36 | __KERNEL_RCSID(0, "$NetBSD: linux32_wait.c,v 1.12 2016/11/10 17:00:51 christos Exp $" ); |
| 37 | |
| 38 | #include <sys/types.h> |
| 39 | #include <sys/param.h> |
| 40 | #include <sys/fstypes.h> |
| 41 | #include <sys/signal.h> |
| 42 | #include <sys/dirent.h> |
| 43 | #include <sys/kernel.h> |
| 44 | #include <sys/fcntl.h> |
| 45 | #include <sys/select.h> |
| 46 | #include <sys/proc.h> |
| 47 | #include <sys/ucred.h> |
| 48 | #include <sys/swap.h> |
| 49 | #include <sys/wait.h> |
| 50 | |
| 51 | #include <machine/types.h> |
| 52 | |
| 53 | #include <sys/syscallargs.h> |
| 54 | |
| 55 | #include <compat/netbsd32/netbsd32.h> |
| 56 | #include <compat/netbsd32/netbsd32_conv.h> |
| 57 | #include <compat/netbsd32/netbsd32_syscallargs.h> |
| 58 | |
| 59 | #include <compat/linux/common/linux_types.h> |
| 60 | #include <compat/linux/common/linux_signal.h> |
| 61 | #include <compat/linux/common/linux_machdep.h> |
| 62 | #include <compat/linux/common/linux_misc.h> |
| 63 | #include <compat/linux/common/linux_oldolduname.h> |
| 64 | #include <compat/linux/common/linux_ipc.h> |
| 65 | #include <compat/linux/common/linux_sem.h> |
| 66 | #include <compat/linux/linux_syscallargs.h> |
| 67 | |
| 68 | #include <compat/linux32/common/linux32_types.h> |
| 69 | #include <compat/linux32/common/linux32_signal.h> |
| 70 | #include <compat/linux32/common/linux32_machdep.h> |
| 71 | #include <compat/linux32/common/linux32_sysctl.h> |
| 72 | #include <compat/linux32/common/linux32_socketcall.h> |
| 73 | #include <compat/linux32/linux32_syscallargs.h> |
| 74 | |
| 75 | int |
| 76 | linux32_sys_waitpid(struct lwp *l, const struct linux32_sys_waitpid_args *uap, register_t *retval) |
| 77 | { |
| 78 | /* { |
| 79 | syscallarg(int) pid; |
| 80 | syscallarg(netbsd32_intp) status; |
| 81 | syscallarg(int) options; |
| 82 | } */ |
| 83 | struct linux32_sys_wait4_args ua; |
| 84 | |
| 85 | SCARG(&ua, pid) = SCARG(uap, pid); |
| 86 | SCARG(&ua, status) = SCARG(uap, status); |
| 87 | SCARG(&ua, options) = SCARG(uap, options); |
| 88 | NETBSD32PTR32(SCARG(&ua, rusage), NULL); |
| 89 | |
| 90 | return linux32_sys_wait4(l, &ua, retval); |
| 91 | } |
| 92 | |
| 93 | int |
| 94 | linux32_sys_wait4(struct lwp *l, const struct linux32_sys_wait4_args *uap, register_t *retval) |
| 95 | { |
| 96 | /* { |
| 97 | syscallarg(int) pid; |
| 98 | syscallarg(netbsd32_intp) status; |
| 99 | syscallarg(int) options; |
| 100 | syscallarg(netbsd32_rusage50p_t) rusage; |
| 101 | } */ |
| 102 | int error, status, linux_options, options, pid; |
| 103 | struct netbsd32_rusage50 ru32; |
| 104 | struct rusage ru; |
| 105 | proc_t *p; |
| 106 | |
| 107 | linux_options = SCARG(uap, options); |
| 108 | if (linux_options & ~(LINUX_WAIT4_KNOWNFLAGS)) |
| 109 | return EINVAL; |
| 110 | |
| 111 | options = 0; |
| 112 | if (linux_options & LINUX_WAIT4_WNOHANG) |
| 113 | options |= WNOHANG; |
| 114 | if (linux_options & LINUX_WAIT4_WUNTRACED) |
| 115 | options |= WUNTRACED; |
| 116 | if (linux_options & LINUX_WAIT4_WALL) |
| 117 | options |= WALLSIG; |
| 118 | if (linux_options & LINUX_WAIT4_WCLONE) |
| 119 | options |= WALTSIG; |
| 120 | |
| 121 | pid = SCARG(uap, pid); |
| 122 | error = do_sys_wait(&pid, &status, options, |
| 123 | SCARG_P32(uap, rusage) != NULL ? &ru : NULL); |
| 124 | retval[0] = pid; |
| 125 | if (pid == 0) |
| 126 | return error; |
| 127 | |
| 128 | p = curproc; |
| 129 | mutex_enter(p->p_lock); |
| 130 | sigdelset(&p->p_sigpend.sp_set, SIGCHLD); /* XXXAD ksiginfo leak */ |
| 131 | mutex_exit(p->p_lock); |
| 132 | |
| 133 | if (SCARG_P32(uap, rusage) != NULL) { |
| 134 | netbsd32_from_rusage50(&ru, &ru32); |
| 135 | error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32)); |
| 136 | } |
| 137 | |
| 138 | if (error == 0 && SCARG_P32(uap, status) != NULL) { |
| 139 | status = bsd_to_linux_wstat(status); |
| 140 | error = copyout(&status, SCARG_P32(uap, status), sizeof(status)); |
| 141 | } |
| 142 | |
| 143 | return error; |
| 144 | } |
| 145 | |