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freebsd_exec.h revision 1.13 
      1 /*	$NetBSD: freebsd_exec.h,v 1.13 2005/02/26 23:10:18 perry Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	from: @(#)exec.h	8.1 (Berkeley) 6/11/93
     32  *	from: imgact_aout.h,v 1.2 1994/12/30 08:06:19 bde Exp
     33  */
     34 
     35 #ifndef	_FREEBSD_EXEC_H
     36 #define	_FREEBSD_EXEC_H
     37 
     38 #ifdef EXEC_AOUT
     39 #define FREEBSD_N_GETMAGIC(ex) \
     40 	( (ex).a_midmag & 0xffff )
     41 #define FREEBSD_N_GETMID(ex) \
     42 	( ((ex).a_midmag >> 16) & 0x03ff )
     43 #define FREEBSD_N_GETFLAG(ex) \
     44 	( ((ex).a_midmag >> 26) & 0x3f )
     45 #define FREEBSD_N_SETMAGIC(ex,mag,mid,flag) \
     46 	( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
     47 	((mag) & 0xffff) )
     48 
     49 #define FREEBSD_N_ALIGN(ex,x) \
     50 	(FREEBSD_N_GETMAGIC(ex) == ZMAGIC || \
     51 	 FREEBSD_N_GETMAGIC(ex) == QMAGIC ? \
     52 	 ((x) + FREEBSD___LDPGSZ - 1) & \
     53 	 ~(unsigned long)(FREEBSD___LDPGSZ - 1) : (x))
     54 
     55 /* Valid magic number check. */
     56 #define	FREEBSD_N_BADMAG(ex) \
     57 	(FREEBSD_N_GETMAGIC(ex) != OMAGIC && \
     58 	 FREEBSD_N_GETMAGIC(ex) != NMAGIC && \
     59 	 FREEBSD_N_GETMAGIC(ex) != ZMAGIC && \
     60 	 FREEBSD_N_GETMAGIC(ex) != QMAGIC)
     61 
     62 /* Address of the bottom of the text segment. */
     63 #define FREEBSD_N_TXTADDR(ex) \
     64 	((FREEBSD_N_GETMAGIC(ex) == OMAGIC || \
     65 	  FREEBSD_N_GETMAGIC(ex) == NMAGIC || \
     66 	  FREEBSD_N_GETMAGIC(ex) == ZMAGIC) ? 0 : AOUT_LDPGSZ)
     67 
     68 /* Address of the bottom of the data segment. */
     69 #define FREEBSD_N_DATADDR(ex) \
     70 	FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTADDR(ex) + (ex).a_text)
     71 
     72 /* Text segment offset. */
     73 #define	FREEBSD_N_TXTOFF(ex) \
     74 	(FREEBSD_N_GETMAGIC(ex) == ZMAGIC ? AOUT_LDPGSZ : \
     75 	 FREEBSD_N_GETMAGIC(ex) == QMAGIC ? 0 : sizeof(struct exec))
     76 
     77 /* Data segment offset. */
     78 #define	FREEBSD_N_DATOFF(ex) \
     79 	FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTOFF(ex) + (ex).a_text)
     80 
     81 /* Relocation table offset. */
     82 #define FREEBSD_N_RELOFF(ex) \
     83 	FREEBSD_N_ALIGN(ex, FREEBSD_N_DATOFF(ex) + (ex).a_data)
     84 
     85 /* Symbol table offset. */
     86 #define FREEBSD_N_SYMOFF(ex) \
     87 	(FREEBSD_N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
     88 
     89 /* String table offset. */
     90 #define	FREEBSD_N_STROFF(ex) 	(FREEBSD_N_SYMOFF(ex) + (ex).a_syms)
     91 
     92 #define	FREEBSD_AOUT_HDR_SIZE	sizeof(struct exec)
     93 
     94 int exec_freebsd_aout_makecmds __P((struct proc *, struct exec_package *));
     95 
     96 #endif /* EXEC_AOUT */
     97 
     98 #ifdef EXEC_ELF32
     99 #define FREEBSD_ELF_BRAND_STRING "FreeBSD"
    100 #define FREEBSD_ELF_INTERP_PREFIX_STRING "/usr/libexec/ld-elf.so"
    101 
    102 int freebsd_elf32_probe __P((struct proc *, struct exec_package *, void *,
    103     char *, vaddr_t *));
    104 #endif /* EXEC_ELF32 */
    105 
    106 void freebsd_setregs __P((struct lwp *, struct exec_package *, u_long));
    107 
    108 extern char freebsd_sigcode[], freebsd_esigcode[];
    109 extern const struct emul emul_freebsd;
    110 
    111 #endif /* !_FREEBSD_EXEC_H */
    112