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netbsd32_exec.h revision 1.16 
      1 /*	$NetBSD: netbsd32_exec.h,v 1.16 2003/09/26 18:10:32 christos 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 proc *, struct exec_package *,
     67     struct ps_strings *, char **, void *));
     68 #endif /* EXEC_ELF32 */
     69 
     70 static __inline int netbsd32_copyargs __P((struct proc *, struct exec_package *,
     71     struct ps_strings *, char **, void *));
     72 
     73 void netbsd32_setregs (struct lwp *, struct exec_package *, u_long stack);
     74 int netbsd32_sigreturn (struct proc *, void *, register_t *);
     75 void netbsd32_sendsig (int, const sigset_t *, u_long);
     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(p, pack, arginfo, stackp, argp)
     84 	struct proc *p;
     85 	struct exec_package *pack;
     86 	struct ps_strings *arginfo;
     87 	char **stackp;
     88 	void *argp;
     89 {
     90 	u_int32_t *cpp = (u_int32_t *)*stackp;
     91 	u_int32_t dp;
     92 	u_int32_t nullp = 0;
     93 	char *sp;
     94 	size_t len;
     95 	int argc = arginfo->ps_nargvstr;
     96 	int envc = arginfo->ps_nenvstr;
     97 	int error;
     98 
     99 	if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0)
    100 		return error;
    101 
    102 	dp = (u_long) (cpp + argc + envc + 2 + pack->ep_esch->es_arglen);
    103 	sp = argp;
    104 
    105 	/* XXX don't copy them out, remap them! */
    106 	/* remember location of argv for later */
    107 	arginfo->ps_argvstr = (char **)(u_long)cpp;
    108 
    109 	for (; --argc >= 0; sp += len, dp += len) {
    110 		if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0 ||
    111 		    (error = copyoutstr(sp, (char *)NETBSD32PTR64(dp),
    112 		    ARG_MAX, &len)) != 0)
    113 			return error;
    114 	}
    115 	if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
    116 		return error;
    117 
    118 	/* remember location of envp for later */
    119 	arginfo->ps_envstr = (char **)(u_long)cpp;
    120 
    121 	for (; --envc >= 0; sp += len, dp += len) {
    122 		if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0 ||
    123 		    (error = copyoutstr(sp, (char *)NETBSD32PTR64(dp),
    124 		    ARG_MAX, &len)) != 0)
    125 			return error;
    126 	}
    127 	if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
    128 		return error;
    129 
    130 	*stackp = (char *)cpp;
    131 	return 0;
    132 }
    133 
    134 #endif /* !_NETBSD32_EXEC_H_ */
    135