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netbsd32_exec.h revision 1.11 
      1 /*	$NetBSD: netbsd32_exec.h,v 1.11 2002/06/04 14:49:15 eeh 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  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #ifndef	_NETBSD32_EXEC_H_
     32 #define	_NETBSD32_EXEC_H_
     33 
     34 #include <compat/netbsd32/netbsd32.h>
     35 
     36 /* from <sys/exec_aout.h> */
     37 /*
     38  * Header prepended to each a.out file.
     39  * only manipulate the a_midmag field via the
     40  * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below.
     41  */
     42 struct netbsd32_exec {
     43 	netbsd32_u_long	a_midmag;	/* htonl(flags<<26 | mid<<16 | magic) */
     44 	netbsd32_u_long	a_text;		/* text segment size */
     45 	netbsd32_u_long	a_data;		/* initialized data size */
     46 	netbsd32_u_long	a_bss;		/* uninitialized data size */
     47 	netbsd32_u_long	a_syms;		/* symbol table size */
     48 	netbsd32_u_long	a_entry;	/* entry point */
     49 	netbsd32_u_long	a_trsize;	/* text relocation size */
     50 	netbsd32_u_long	a_drsize;	/* data relocation size */
     51 };
     52 
     53 extern const struct emul emul_netbsd32;
     54 
     55 #ifdef EXEC_AOUT
     56 int netbsd32_exec_aout_prep_zmagic __P((struct proc *, struct exec_package *));
     57 int netbsd32_exec_aout_prep_nmagic __P((struct proc *, struct exec_package *));
     58 int netbsd32_exec_aout_prep_omagic __P((struct proc *, struct exec_package *));
     59 int exec_netbsd32_makecmds __P((struct proc *, struct exec_package *));
     60 #endif
     61 #ifdef EXEC_ELF32
     62 int netbsd32_elf32_probe __P((struct proc *, struct exec_package *, void *,
     63     char *, vaddr_t *));
     64 int netbsd32_elf32_probe_noteless __P((struct proc *, struct exec_package *,
     65     void *, char *, vaddr_t *));
     66 int netbsd32_elf32_copyargs __P((struct exec_package *, struct ps_strings *,
     67     char **, void *));
     68 #endif /* EXEC_ELF32 */
     69 
     70 static __inline int netbsd32_copyargs __P((struct exec_package *,
     71     struct ps_strings *, char **, void *));
     72 
     73 /*
     74  * We need to copy out all pointers as 32-bit values.
     75  */
     76 static __inline int
     77 netbsd32_copyargs(pack, arginfo, stackp, argp)
     78 	struct exec_package *pack;
     79 	struct ps_strings *arginfo;
     80 	char **stackp;
     81 	void *argp;
     82 {
     83 	u_int32_t *cpp = (u_int32_t *)*stackp;
     84 	u_int32_t dp;
     85 	u_int32_t nullp = 0;
     86 	char *sp;
     87 	size_t len;
     88 	int argc = arginfo->ps_nargvstr;
     89 	int envc = arginfo->ps_nenvstr;
     90 	int error;
     91 
     92 	if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0)
     93 		return error;
     94 
     95 	dp = (u_long) (cpp + argc + envc + 2 + pack->ep_esch->es_arglen);
     96 	sp = argp;
     97 
     98 	/* XXX don't copy them out, remap them! */
     99 	/* remember location of argv for later */
    100 	arginfo->ps_argvstr = (char **)(u_long)cpp;
    101 
    102 	for (; --argc >= 0; sp += len, dp += len) {
    103 		if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0 ||
    104 		    (error = copyoutstr(sp, (char *)(u_long)dp,
    105 		    ARG_MAX, &len)) != 0)
    106 			return error;
    107 	}
    108 	if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
    109 		return error;
    110 
    111 	/* remember location of envp for later */
    112 	arginfo->ps_envstr = (char **)(u_long)cpp;
    113 
    114 	for (; --envc >= 0; sp += len, dp += len) {
    115 		if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0 ||
    116 		    (error = copyoutstr(sp, (char *)(u_long)dp,
    117 		    ARG_MAX, &len)) != 0)
    118 			return error;
    119 	}
    120 	if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
    121 		return error;
    122 
    123 	*stackp = (char *)cpp;
    124 	return 0;
    125 }
    126 
    127 #endif /* !_NETBSD32_EXEC_H_ */
    128