1 /* $NetBSD: netbsd32_exec.h,v 1.34 2019/01/27 02:08:40 pgoyette Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _NETBSD32_EXEC_H_ 30 #define _NETBSD32_EXEC_H_ 31 32 #include <compat/netbsd32/netbsd32.h> 33 34 #ifdef EXEC_AOUT 35 #include <sys/exec_aout.h> 36 #endif 37 38 /* from <sys/exec_aout.h> */ 39 /* 40 * Header prepended to each a.out file. 41 * only manipulate the a_midmag field via the 42 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below. 43 */ 44 struct netbsd32_exec { 45 netbsd32_u_long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */ 46 netbsd32_u_long a_text; /* text segment size */ 47 netbsd32_u_long a_data; /* initialized data size */ 48 netbsd32_u_long a_bss; /* uninitialized data size */ 49 netbsd32_u_long a_syms; /* symbol table size */ 50 netbsd32_u_long a_entry; /* entry point */ 51 netbsd32_u_long a_trsize; /* text relocation size */ 52 netbsd32_u_long a_drsize; /* data relocation size */ 53 }; 54 55 #ifdef EXEC_AOUT 56 int netbsd32_exec_aout_prep_zmagic(struct lwp *, struct exec_package *); 57 int netbsd32_exec_aout_prep_nmagic(struct lwp *, struct exec_package *); 58 int netbsd32_exec_aout_prep_omagic(struct lwp *, struct exec_package *); 59 int exec_netbsd32_makecmds(struct lwp *, struct exec_package *); 60 #endif 61 #ifdef EXEC_ELF32 62 int netbsd32_elf32_probe(struct lwp *, struct exec_package *, void *, 63 char *, vaddr_t *); 64 int netbsd32_elf32_probe_noteless(struct lwp *, struct exec_package *, 65 void *, char *, vaddr_t *); 66 int netbsd32_elf32_copyargs(struct lwp *, struct exec_package *, 67 struct ps_strings *, char **, void *); 68 #endif /* EXEC_ELF32 */ 69 70 static __inline int netbsd32_copyargs(struct lwp *, struct exec_package *, 71 struct ps_strings *, char **, void *); 72 73 void netbsd32_setregs (struct lwp *, struct exec_package *, vaddr_t stack); 74 int netbsd32_sigreturn (struct proc *, void *, register_t *); 75 void netbsd32_sendsig (const ksiginfo_t *, const sigset_t *); 76 77 extern char netbsd32_esigcode[], netbsd32_sigcode[]; 78 79 /* 80 * We need to copy out all pointers as 32-bit values. 81 */ 82 static __inline int 83 netbsd32_copyargs(struct lwp *l, struct exec_package *pack, 84 struct ps_strings *arginfo, char **stackp, void *argp) 85 { 86 u_int32_t *cpp = (u_int32_t *)*stackp; 87 netbsd32_pointer_t dp; 88 u_int32_t nullp = 0; 89 char *sp; 90 size_t len; 91 int argc = arginfo->ps_nargvstr; 92 int envc = arginfo->ps_nenvstr; 93 int error; 94 95 NETBSD32PTR32(dp, (char *)(cpp + 96 1 + /* int argc */ 97 argc + /* char *argv[] */ 98 1 + /* \0 */ 99 envc + /* char *env[] */ 100 1) + /* \0 */ 101 pack->ep_esch->es_arglen); /* auxinfo */ 102 sp = argp; 103 104 if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0) 105 return error; 106 107 /* XXX don't copy them out, remap them! */ 108 /* remember location of argv for later */ 109 arginfo->ps_argvstr = (char **)(u_long)cpp; 110 111 for (; --argc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) { 112 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0) 113 return error; 114 if ((error = copyoutstr(sp, NETBSD32PTR64(dp), 115 ARG_MAX, &len)) != 0) 116 return error; 117 } 118 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0) 119 return error; 120 121 /* remember location of envp for later */ 122 arginfo->ps_envstr = (char **)(u_long)cpp; 123 124 for (; --envc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) { 125 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0) 126 return error; 127 if ((error = copyoutstr(sp, NETBSD32PTR64(dp), 128 ARG_MAX, &len)) != 0) 129 return error; 130 } 131 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0) 132 return error; 133 134 *stackp = (char *)cpp; 135 return 0; 136 } 137 138 #endif /* !_NETBSD32_EXEC_H_ */ 139