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ecoff_machdep.h revision 1.1 
      1 /*	$NetBSD: ecoff_machdep.h,v 1.1 2002/02/23 21:32:28 gmcgarry 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_MIPSEB	0x0160	/* mips1, big-endian */
     54 #define ECOFF_MAGIC_MIPSEL	0x0162	/* mips1, little-endian */
     55 #define ECOFF_MAGIC_MIPSEL3	0x0142	/* mips3, little-endian */
     56 
     57 #if BYTE_ORDER == LITTLE_ENDIAN
     58 #define ECOFF_BADMAG(ep) \
     59     (!								\
     60 	((ep)->f.f_magic == ECOFF_MAGIC_MIPSEL ||		\
     61 	 (_MIPS3_OK() && (ep)->f.f_magic == ECOFF_MAGIC_MIPSEL3)) \
     62     )
     63 #endif
     64 #if BYTE_ORDER == BIG_ENDIAN
     65 #define ECOFF_BADMAG(ep) ((ep)->f.f_magic != ECOFF_MAGIC_MIPSEB)
     66 #endif
     67 
     68 
     69 #define ECOFF_SEGMENT_ALIGNMENT(ep) ((ep)->a.vstamp < 23 ? 8 : 16)
     70 
     71 #ifdef _KERNEL
     72 struct proc;
     73 struct exec_package;
     74 void	cpu_exec_ecoff_setregs __P((
     75     struct proc *, struct exec_package *, u_long));
     76 #endif	/* _KERNEL */
     77 
     78 
     79 /*
     80  * ECOFF symbol definitions for 32-bit mips.
     81  * XXX 64-bit (mips3?) may be different.
     82  */
     83 struct ecoff_symhdr {
     84 	int16_t		magic;
     85 	int16_t		vstamp;
     86 	int32_t		ilineMax;
     87 	int32_t		cbLine;
     88 	int32_t		cbLineOffset;
     89 	int32_t		idnMax;
     90 	int32_t		cbDnOffset;
     91 	int32_t		ipdMax;
     92 	int32_t		cbPdOffset;
     93 	int32_t		isymMax;
     94 	int32_t		cbSymOffset;
     95 	int32_t		ioptMax;
     96 	int32_t		cbOptOffset;
     97 	int32_t		iauxMax;
     98 	int32_t		cbAuxOffset;
     99 	int32_t		issMax;
    100 	int32_t		cbSsOffset;
    101 	int32_t		issExtMax;
    102 	int32_t		cbSsExtOffset;
    103 	int32_t		ifdMax;
    104 	int32_t		cbFdOffset;
    105 	int32_t		crfd;
    106 	int32_t		cbRfdOffset;
    107 	int32_t		iextMax;
    108 	int32_t		cbExtOffset;
    109 };
    110 
    111 /* Macro for field name used by cgd's Alpha-derived code */
    112 #define esymMax iextMax
    113 
    114 
    115 struct ecoff_extsym {
    116 	u_int16_t	es_flags;
    117 	u_int16_t	es_ifd;
    118 	int32_t		es_strindex;
    119 	int32_t		es_value;
    120 	unsigned	es_type:6;
    121 	unsigned	es_class:5;
    122 	unsigned	:1;
    123 	unsigned	es_symauxindex:20;
    124 };
    125