1 1.13 christos /* $NetBSD: linux32_wait.c,v 1.13 2023/08/18 19:41:20 christos Exp $ */ 2 1.1 manu 3 1.1 manu /*- 4 1.1 manu * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. 5 1.1 manu * 6 1.1 manu * Redistribution and use in source and binary forms, with or without 7 1.1 manu * modification, are permitted provided that the following conditions 8 1.1 manu * are met: 9 1.1 manu * 1. Redistributions of source code must retain the above copyright 10 1.1 manu * notice, this list of conditions and the following disclaimer. 11 1.1 manu * 2. Redistributions in binary form must reproduce the above copyright 12 1.1 manu * notice, this list of conditions and the following disclaimer in the 13 1.1 manu * documentation and/or other materials provided with the distribution. 14 1.1 manu * 3. All advertising materials mentioning features or use of this software 15 1.1 manu * must display the following acknowledgement: 16 1.1 manu * This product includes software developed by Emmanuel Dreyfus 17 1.1 manu * 4. The name of the author may not be used to endorse or promote 18 1.1 manu * products derived from this software without specific prior written 19 1.1 manu * permission. 20 1.1 manu * 21 1.1 manu * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 1.1 manu * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 1.1 manu * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 1.1 manu * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 1.1 manu * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 1.1 manu * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 1.1 manu * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 1.1 manu * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 1.1 manu * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 1.1 manu * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 1.1 manu * POSSIBILITY OF SUCH DAMAGE. 32 1.1 manu */ 33 1.1 manu 34 1.1 manu #include <sys/cdefs.h> 35 1.1 manu 36 1.13 christos __KERNEL_RCSID(0, "$NetBSD: linux32_wait.c,v 1.13 2023/08/18 19:41:20 christos Exp $"); 37 1.1 manu 38 1.1 manu #include <sys/types.h> 39 1.1 manu #include <sys/param.h> 40 1.1 manu #include <sys/fstypes.h> 41 1.1 manu #include <sys/signal.h> 42 1.1 manu #include <sys/dirent.h> 43 1.1 manu #include <sys/kernel.h> 44 1.1 manu #include <sys/fcntl.h> 45 1.1 manu #include <sys/select.h> 46 1.1 manu #include <sys/proc.h> 47 1.1 manu #include <sys/ucred.h> 48 1.1 manu #include <sys/swap.h> 49 1.5 njoly #include <sys/wait.h> 50 1.1 manu 51 1.1 manu #include <machine/types.h> 52 1.1 manu 53 1.1 manu #include <sys/syscallargs.h> 54 1.1 manu 55 1.1 manu #include <compat/netbsd32/netbsd32.h> 56 1.1 manu #include <compat/netbsd32/netbsd32_conv.h> 57 1.1 manu #include <compat/netbsd32/netbsd32_syscallargs.h> 58 1.1 manu 59 1.1 manu #include <compat/linux/common/linux_types.h> 60 1.1 manu #include <compat/linux/common/linux_signal.h> 61 1.1 manu #include <compat/linux/common/linux_machdep.h> 62 1.1 manu #include <compat/linux/common/linux_misc.h> 63 1.1 manu #include <compat/linux/common/linux_oldolduname.h> 64 1.9 ad #include <compat/linux/common/linux_ipc.h> 65 1.9 ad #include <compat/linux/common/linux_sem.h> 66 1.1 manu #include <compat/linux/linux_syscallargs.h> 67 1.1 manu 68 1.1 manu #include <compat/linux32/common/linux32_types.h> 69 1.1 manu #include <compat/linux32/common/linux32_signal.h> 70 1.1 manu #include <compat/linux32/common/linux32_machdep.h> 71 1.1 manu #include <compat/linux32/common/linux32_sysctl.h> 72 1.1 manu #include <compat/linux32/common/linux32_socketcall.h> 73 1.1 manu #include <compat/linux32/linux32_syscallargs.h> 74 1.1 manu 75 1.1 manu int 76 1.6 dsl linux32_sys_waitpid(struct lwp *l, const struct linux32_sys_waitpid_args *uap, register_t *retval) 77 1.1 manu { 78 1.6 dsl /* { 79 1.1 manu syscallarg(int) pid; 80 1.1 manu syscallarg(netbsd32_intp) status; 81 1.1 manu syscallarg(int) options; 82 1.6 dsl } */ 83 1.5 njoly struct linux32_sys_wait4_args ua; 84 1.1 manu 85 1.1 manu SCARG(&ua, pid) = SCARG(uap, pid); 86 1.5 njoly SCARG(&ua, status) = SCARG(uap, status); 87 1.1 manu SCARG(&ua, options) = SCARG(uap, options); 88 1.5 njoly NETBSD32PTR32(SCARG(&ua, rusage), NULL); 89 1.1 manu 90 1.5 njoly return linux32_sys_wait4(l, &ua, retval); 91 1.1 manu } 92 1.1 manu 93 1.1 manu int 94 1.6 dsl linux32_sys_wait4(struct lwp *l, const struct linux32_sys_wait4_args *uap, register_t *retval) 95 1.1 manu { 96 1.6 dsl /* { 97 1.1 manu syscallarg(int) pid; 98 1.1 manu syscallarg(netbsd32_intp) status; 99 1.1 manu syscallarg(int) options; 100 1.10 njoly syscallarg(netbsd32_rusage50p_t) rusage; 101 1.6 dsl } */ 102 1.11 rmind int error, status, linux_options, options, pid; 103 1.11 rmind struct netbsd32_rusage50 ru32; 104 1.5 njoly struct rusage ru; 105 1.7 ad proc_t *p; 106 1.5 njoly 107 1.5 njoly linux_options = SCARG(uap, options); 108 1.5 njoly if (linux_options & ~(LINUX_WAIT4_KNOWNFLAGS)) 109 1.5 njoly return EINVAL; 110 1.5 njoly 111 1.12 christos options = 0; 112 1.13 christos if (linux_options & LINUX_WNOHANG) 113 1.5 njoly options |= WNOHANG; 114 1.13 christos if (linux_options & LINUX_WUNTRACED) 115 1.5 njoly options |= WUNTRACED; 116 1.13 christos if (linux_options & LINUX_WALL) 117 1.5 njoly options |= WALLSIG; 118 1.13 christos if (linux_options & LINUX_WCLONE) 119 1.5 njoly options |= WALTSIG; 120 1.5 njoly 121 1.6 dsl pid = SCARG(uap, pid); 122 1.11 rmind error = do_sys_wait(&pid, &status, options, 123 1.11 rmind SCARG_P32(uap, rusage) != NULL ? &ru : NULL); 124 1.6 dsl retval[0] = pid; 125 1.6 dsl if (pid == 0) 126 1.5 njoly return error; 127 1.5 njoly 128 1.7 ad p = curproc; 129 1.8 ad mutex_enter(p->p_lock); 130 1.7 ad sigdelset(&p->p_sigpend.sp_set, SIGCHLD); /* XXXAD ksiginfo leak */ 131 1.8 ad mutex_exit(p->p_lock); 132 1.5 njoly 133 1.5 njoly if (SCARG_P32(uap, rusage) != NULL) { 134 1.10 njoly netbsd32_from_rusage50(&ru, &ru32); 135 1.5 njoly error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32)); 136 1.5 njoly } 137 1.5 njoly 138 1.5 njoly if (error == 0 && SCARG_P32(uap, status) != NULL) { 139 1.5 njoly status = bsd_to_linux_wstat(status); 140 1.5 njoly error = copyout(&status, SCARG_P32(uap, status), sizeof(status)); 141 1.5 njoly } 142 1.1 manu 143 1.5 njoly return error; 144 1.1 manu } 145