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ecoff_machdep.h revision 1.11 
      1 /*	$NetBSD: ecoff_machdep.h,v 1.11 1997/10/08 07:36:58 jonathan Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Jonathan Stone
      5  * All rights reserved.
      6  *
      7  * Copyright (c) 1994 Adam Glass
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by Adam Glass.
     21  * 4. The name of the Author may not be used to endorse or promote products
     22  *    derived from this software without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL Adam Glass BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  */
     36 
     37 #include <mips/cpu.h>		/* mips CPU architecture levels */
     38 
     39 #define ECOFF_LDPGSZ 4096
     40 
     41 #define ECOFF_PAD
     42 
     43 #define ECOFF_MACHDEP \
     44         u_long gprmask; \
     45         u_long cprmask[4]; \
     46         u_long gp_value
     47 
     48 #define ECOFF_MAGIC_MIPSEL	0x0162	/* mips1, little-endian */
     49 #define ECOFF_MAGIC_MIPSEL3	0x0142	/* mips3, little-endian */
     50 
     51 #define ECOFF_BADMAG(ep) \
     52     (!								\
     53 	((ep)->f.f_magic == ECOFF_MAGIC_MIPSEL ||		\
     54 	 (CPUISMIPS3 && (ep)->f.f_magic == ECOFF_MAGIC_MIPSEL3)) \
     55     )
     56 
     57 
     58 #define ECOFF_SEGMENT_ALIGNMENT(ep) ((ep)->a.vstamp < 23 ? 8 : 16)
     59 
     60 extern void	cpu_exec_ecoff_setregs __P((
     61     struct proc *, struct exec_package *, u_long));
     62 
     63 
     64 /*
     65  * ECOFF symbol definitions for 32-bit mips.
     66  * XXX 64-bit (mips3?) may be different.
     67  */
     68 struct ecoff_symhdr {
     69 	int16_t		magic;
     70 	int16_t		vstamp;
     71 	int32_t		ilineMax;
     72 	int32_t		cbLine;
     73 	int32_t		cbLineOffset;
     74 	int32_t		idnMax;
     75 	int32_t		cbDnOffset;
     76 	int32_t		ipdMax;
     77 	int32_t		cbPdOffset;
     78 	int32_t		isymMax;
     79 	int32_t		cbSymOffset;
     80 	int32_t		ioptMax;
     81 	int32_t		cbOptOffset;
     82 	int32_t		iauxMax;
     83 	int32_t		cbAuxOffset;
     84 	int32_t		issMax;
     85 	int32_t		cbSsOffset;
     86 	int32_t		issExtMax;
     87 	int32_t		cbSsExtOffset;
     88 	int32_t		ifdMax;
     89 	int32_t		cbFdOffset;
     90 	int32_t		crfd;
     91 	int32_t		cbRfdOffset;
     92 	int32_t		iextMax;
     93 	int32_t		cbExtOffset;
     94 };
     95 
     96 /* Macro for field name used by cgd's Alpha-derived code */
     97 #define esymMax iextMax
     98 
     99 
    100 struct ecoff_extsym {
    101 	u_int16_t	es_flags;
    102 	u_int16_t	es_ifd;
    103 	int32_t		es_strindex;
    104 	int32_t		es_value;
    105 	unsigned	es_type:6;
    106 	unsigned	es_class:5;
    107 	unsigned	:1;
    108 	unsigned	es_symauxindex:20;
    109 };
    110 
    111 
    112