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ecoff_machdep.h revision 1.13 
      1 /*	$NetBSD: ecoff_machdep.h,v 1.13 1997/10/15 00:59:01 mhitch 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 #define ECOFF_LDPGSZ 4096
     38 
     39 #define ECOFF_PAD
     40 
     41 #define ECOFF_MACHDEP \
     42         u_long gprmask; \
     43         u_long cprmask[4]; \
     44         u_long gp_value
     45 #ifdef _KERNEL
     46 #include <mips/cpu.h>		/* mips CPU architecture levels */
     47 #define _MIPS3_OK() CPUISMIPS3
     48 #else
     49 #define _MIPS3_OK() 1
     50 #endif
     51 
     52 
     53 #define ECOFF_MAGIC_MIPSEL	0x0162	/* mips1, little-endian */
     54 #define ECOFF_MAGIC_MIPSEL3	0x0142	/* mips3, little-endian */
     55 
     56 #define ECOFF_BADMAG(ep) \
     57     (!								\
     58 	((ep)->f.f_magic == ECOFF_MAGIC_MIPSEL ||		\
     59 	 (_MIPS3_OK() && (ep)->f.f_magic == ECOFF_MAGIC_MIPSEL3)) \
     60     )
     61 
     62 
     63 #define ECOFF_SEGMENT_ALIGNMENT(ep) ((ep)->a.vstamp < 23 ? 8 : 16)
     64 
     65 extern void	cpu_exec_ecoff_setregs __P((
     66     struct proc *, struct exec_package *, u_long));
     67 
     68 
     69 /*
     70  * ECOFF symbol definitions for 32-bit mips.
     71  * XXX 64-bit (mips3?) may be different.
     72  */
     73 struct ecoff_symhdr {
     74 	int16_t		magic;
     75 	int16_t		vstamp;
     76 	int32_t		ilineMax;
     77 	int32_t		cbLine;
     78 	int32_t		cbLineOffset;
     79 	int32_t		idnMax;
     80 	int32_t		cbDnOffset;
     81 	int32_t		ipdMax;
     82 	int32_t		cbPdOffset;
     83 	int32_t		isymMax;
     84 	int32_t		cbSymOffset;
     85 	int32_t		ioptMax;
     86 	int32_t		cbOptOffset;
     87 	int32_t		iauxMax;
     88 	int32_t		cbAuxOffset;
     89 	int32_t		issMax;
     90 	int32_t		cbSsOffset;
     91 	int32_t		issExtMax;
     92 	int32_t		cbSsExtOffset;
     93 	int32_t		ifdMax;
     94 	int32_t		cbFdOffset;
     95 	int32_t		crfd;
     96 	int32_t		cbRfdOffset;
     97 	int32_t		iextMax;
     98 	int32_t		cbExtOffset;
     99 };
    100 
    101 /* Macro for field name used by cgd's Alpha-derived code */
    102 #define esymMax iextMax
    103 
    104 
    105 struct ecoff_extsym {
    106 	u_int16_t	es_flags;
    107 	u_int16_t	es_ifd;
    108 	int32_t		es_strindex;
    109 	int32_t		es_value;
    110 	unsigned	es_type:6;
    111 	unsigned	es_class:5;
    112 	unsigned	:1;
    113 	unsigned	es_symauxindex:20;
    114 };
    115 
    116 
    117