linux_exec.c revision 1.32
1 /* $NetBSD: linux_exec.c,v 1.32 1998/10/03 20:17:40 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1994 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Eric Haszlakiewicz and Thor Lancelot Simon. 9 * 10 * This code is derived from software contributed to The NetBSD Foundation 11 * by Christos Zoulas. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the NetBSD 24 * Foundation, Inc. and its contributors. 25 * 4. Neither the name of The NetBSD Foundation nor the names of its 26 * contributors may be used to endorse or promote products derived 27 * from this software without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 32 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 39 * POSSIBILITY OF SUCH DAMAGE. 40 */ 41 42 /* 43 * Copyright (c) 1995 Frank van der Linden 44 * All rights reserved. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 * 68 * based on exec_aout.c, sunos_exec.c and svr4_exec.c 69 */ 70 71 #include <sys/param.h> 72 #include <sys/systm.h> 73 #include <sys/kernel.h> 74 #include <sys/proc.h> 75 #include <sys/malloc.h> 76 #include <sys/namei.h> 77 #include <sys/vnode.h> 78 #include <sys/mount.h> 79 #include <sys/exec.h> 80 #include <sys/exec_elf.h> 81 82 #include <sys/mman.h> 83 #include <sys/syscallargs.h> 84 85 #include <vm/vm.h> 86 #include <vm/vm_param.h> 87 #include <vm/vm_map.h> 88 89 #include <machine/cpu.h> 90 #include <machine/reg.h> 91 92 #include <compat/linux/common/linux_types.h> 93 #include <compat/linux/common/linux_signal.h> 94 #include <compat/linux/common/linux_siginfo.h> 95 #include <compat/linux/common/linux_util.h> 96 #include <compat/linux/common/linux_exec.h> 97 #include <compat/linux/common/linux_machdep.h> 98 99 #include <compat/linux/linux_syscallargs.h> 100 #include <compat/linux/linux_syscall.h> 101 102 103 const char linux_emul_path[] = "/emul/linux"; 104 105 /* 106 * Execve(2). Just check the alternate emulation path, and pass it on 107 * to the NetBSD execve(). 108 */ 109 int 110 linux_sys_execve(p, v, retval) 111 struct proc *p; 112 void *v; 113 register_t *retval; 114 { 115 struct linux_sys_execve_args /* { 116 syscallarg(char *) path; 117 syscallarg(char **) argv; 118 syscallarg(char **) envp; 119 } */ *uap = v; 120 struct sys_execve_args ap; 121 caddr_t sg; 122 123 sg = stackgap_init(p->p_emul); 124 LINUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); 125 126 SCARG(&ap, path) = SCARG(uap, path); 127 SCARG(&ap, argp) = SCARG(uap, argp); 128 SCARG(&ap, envp) = SCARG(uap, envp); 129 130 return sys_execve(p, &ap, retval); 131 } 132
Indexes created Wed Sep 24 15:09:51 GMT 2025