1 /* $NetBSD: netbsd32_exec_elf32.c,v 1.45 2019/06/07 23:35:53 christos Exp $ */ 2 /* from: NetBSD: exec_aout.c,v 1.15 1996/09/26 23:34:46 cgd Exp */ 3 4 /* 5 * Copyright (c) 1998, 2001 Matthew R. Green. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * Copyright (c) 1993, 1994 Christopher G. Demetriou 31 * All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. All advertising materials mentioning features or use of this software 42 * must display the following acknowledgement: 43 * This product includes software developed by Christopher G. Demetriou. 44 * 4. The name of the author may not be used to endorse or promote products 45 * derived from this software without specific prior written permission 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 50 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 52 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 53 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 54 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 55 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 56 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 57 */ 58 59 #include <sys/cdefs.h> 60 __KERNEL_RCSID(0, "$NetBSD: netbsd32_exec_elf32.c,v 1.45 2019/06/07 23:35:53 christos Exp $"); 61 62 #define ELFSIZE 32 63 64 #include <sys/param.h> 65 #include <sys/systm.h> 66 #include <sys/proc.h> 67 #include <sys/vnode.h> 68 #include <sys/exec.h> 69 #include <sys/exec_elf.h> 70 #include <sys/resourcevar.h> 71 #include <sys/signal.h> 72 #include <sys/signalvar.h> 73 #include <sys/kauth.h> 74 #include <sys/namei.h> 75 #include <sys/compat_stub.h> 76 77 #include <compat/common/compat_util.h> 78 79 #include <compat/netbsd32/netbsd32.h> 80 #include <compat/netbsd32/netbsd32_exec.h> 81 82 #include <machine/netbsd32_machdep.h> 83 84 int ELFNAME2(netbsd32,probe_noteless)(struct lwp *, struct exec_package *epp, 85 void *eh, char *itp, vaddr_t *pos); 86 extern int ELFNAME2(netbsd,signature)(struct lwp *, struct exec_package *, 87 Elf_Ehdr *); 88 89 int 90 ELFNAME2(netbsd32,probe)(struct lwp *l, struct exec_package *epp, 91 void *eh, char *itp, vaddr_t *pos) 92 { 93 int error; 94 95 if ((error = ELFNAME2(netbsd,signature)(l, epp, eh)) != 0) 96 return error; 97 98 #ifdef ELF_MD_PROBE_FUNC 99 if ((error = ELF_MD_PROBE_FUNC(l, epp, eh, itp, pos)) != 0) 100 return error; 101 #elif defined(ELF_INTERP_NON_RELOCATABLE) 102 *pos = ELF_LINK_ADDR; 103 #endif 104 105 return ELFNAME2(netbsd32,probe_noteless)(l, epp, eh, itp, pos); 106 } 107 108 int 109 ELFNAME2(netbsd32,probe_noteless)(struct lwp *l, struct exec_package *epp, 110 void *eh, char *itp, vaddr_t *pos) 111 { 112 const char *m; 113 114 if (itp && epp->ep_interp == NULL) { 115 MODULE_HOOK_CALL(netbsd32_machine32_hook, (), machine, m); 116 (void)compat_elf_check_interp(epp, itp, m); 117 } 118 #ifdef _LP64 119 epp->ep_flags |= EXEC_32 | EXEC_FORCEAUX; 120 #endif 121 epp->ep_vm_minaddr = exec_vm_minaddr(VM_MIN_ADDRESS); 122 epp->ep_vm_maxaddr = USRSTACK32; 123 #ifdef ELF_INTERP_NON_RELOCATABLE 124 *pos = ELF_LINK_ADDR; 125 #endif 126 return 0; 127 } 128 129 /* 130 * Copy arguments onto the stack in the normal way, but add some 131 * extra information in case of dynamic binding. 132 */ 133 int 134 netbsd32_elf32_copyargs(struct lwp *l, struct exec_package *pack, 135 struct ps_strings *arginfo, char **stackp, void *argp) 136 { 137 int error; 138 139 if ((error = netbsd32_copyargs(l, pack, arginfo, stackp, argp)) != 0) 140 return error; 141 142 return elf32_populate_auxv(l, pack, stackp); 143 } 144
Indexes created Sat Sep 20 22:09:52 GMT 2025