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netbsd32_exec.h revision 1.32 
      1 /*	$NetBSD: netbsd32_exec.h,v 1.32 2014/10/24 21:07:55 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  *
     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, cpp +
     98 	    1 +				/* int argc */
     99 	    argc +			/* char *argv[] */
    100 	    1 +				/* \0 */
    101 	    envc +			/* char *env[] */
    102 	    1 +				/* \0 */
    103 	    /* XXX auxinfo multiplied by ptr size? */
    104 	    pack->ep_esch->es_arglen);	/* auxinfo */
    105 	sp = argp;
    106 
    107 	if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0)
    108 		return error;
    109 
    110 	/* XXX don't copy them out, remap them! */
    111 	/* remember location of argv for later */
    112 	arginfo->ps_argvstr = (char **)(u_long)cpp;
    113 
    114 	for (; --argc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
    115 		if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0)
    116 			return error;
    117 		if ((error = copyoutstr(sp, NETBSD32PTR64(dp),
    118 		    ARG_MAX, &len)) != 0)
    119 			return error;
    120 	}
    121 	if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
    122 		return error;
    123 
    124 	/* remember location of envp for later */
    125 	arginfo->ps_envstr = (char **)(u_long)cpp;
    126 
    127 	for (; --envc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
    128 		if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0)
    129 			return error;
    130 		if ((error = copyoutstr(sp, NETBSD32PTR64(dp),
    131 		    ARG_MAX, &len)) != 0)
    132 			return error;
    133 	}
    134 	if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
    135 		return error;
    136 
    137 	*stackp = (char *)cpp;
    138 	return 0;
    139 }
    140 
    141 #endif /* !_NETBSD32_EXEC_H_ */
    142