1 /* $NetBSD: netbsd32_exec.h,v 1.33 2017/01/25 21:45:39 jakllsch 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 extern struct emul emul_netbsd32; 56 57 #ifdef EXEC_AOUT 58 int netbsd32_exec_aout_prep_zmagic(struct lwp *, struct exec_package *); 59 int netbsd32_exec_aout_prep_nmagic(struct lwp *, struct exec_package *); 60 int netbsd32_exec_aout_prep_omagic(struct lwp *, struct exec_package *); 61 int exec_netbsd32_makecmds(struct lwp *, struct exec_package *); 62 #endif 63 #ifdef EXEC_ELF32 64 int netbsd32_elf32_probe(struct lwp *, struct exec_package *, void *, 65 char *, vaddr_t *); 66 int netbsd32_elf32_probe_noteless(struct lwp *, struct exec_package *, 67 void *, char *, vaddr_t *); 68 int netbsd32_elf32_copyargs(struct lwp *, struct exec_package *, 69 struct ps_strings *, char **, void *); 70 #endif /* EXEC_ELF32 */ 71 72 static __inline int netbsd32_copyargs(struct lwp *, struct exec_package *, 73 struct ps_strings *, char **, void *); 74 75 void netbsd32_setregs (struct lwp *, struct exec_package *, vaddr_t stack); 76 int netbsd32_sigreturn (struct proc *, void *, register_t *); 77 void netbsd32_sendsig (const ksiginfo_t *, const sigset_t *); 78 79 extern char netbsd32_esigcode[], netbsd32_sigcode[]; 80 81 /* 82 * We need to copy out all pointers as 32-bit values. 83 */ 84 static __inline int 85 netbsd32_copyargs(struct lwp *l, struct exec_package *pack, 86 struct ps_strings *arginfo, char **stackp, void *argp) 87 { 88 u_int32_t *cpp = (u_int32_t *)*stackp; 89 netbsd32_pointer_t dp; 90 u_int32_t nullp = 0; 91 char *sp; 92 size_t len; 93 int argc = arginfo->ps_nargvstr; 94 int envc = arginfo->ps_nenvstr; 95 int error; 96 97 NETBSD32PTR32(dp, (char *)(cpp + 98 1 + /* int argc */ 99 argc + /* char *argv[] */ 100 1 + /* \0 */ 101 envc + /* char *env[] */ 102 1) + /* \0 */ 103 pack->ep_esch->es_arglen); /* auxinfo */ 104 sp = argp; 105 106 if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0) 107 return error; 108 109 /* XXX don't copy them out, remap them! */ 110 /* remember location of argv for later */ 111 arginfo->ps_argvstr = (char **)(u_long)cpp; 112 113 for (; --argc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) { 114 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0) 115 return error; 116 if ((error = copyoutstr(sp, NETBSD32PTR64(dp), 117 ARG_MAX, &len)) != 0) 118 return error; 119 } 120 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0) 121 return error; 122 123 /* remember location of envp for later */ 124 arginfo->ps_envstr = (char **)(u_long)cpp; 125 126 for (; --envc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) { 127 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0) 128 return error; 129 if ((error = copyoutstr(sp, NETBSD32PTR64(dp), 130 ARG_MAX, &len)) != 0) 131 return error; 132 } 133 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0) 134 return error; 135 136 *stackp = (char *)cpp; 137 return 0; 138 } 139 140 #endif /* !_NETBSD32_EXEC_H_ */ 141