sys/arch/mips/include/ecoff_machdep.h

   1 /*      $NetBSD: ecoff_machdep.h,v 1.19 2003/01/17 23:36:08 thorpej 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(struct lwp *, struct exec_package *, vaddr_t);
  75 #endif  /* _KERNEL */
  76
  77
  78 /*
  79  * ECOFF symbol definitions for 32-bit mips.
  80  * XXX 64-bit (mips3?) may be different.
  81  */
  82 struct ecoff_symhdr {
  83         int16_t         magic;
  84         int16_t         vstamp;
  85         int32_t         ilineMax;
  86         int32_t         cbLine;
  87         int32_t         cbLineOffset;
  88         int32_t         idnMax;
  89         int32_t         cbDnOffset;
  90         int32_t         ipdMax;
  91         int32_t         cbPdOffset;
  92         int32_t         isymMax;
  93         int32_t         cbSymOffset;
  94         int32_t         ioptMax;
  95         int32_t         cbOptOffset;
  96         int32_t         iauxMax;
  97         int32_t         cbAuxOffset;
  98         int32_t         issMax;
  99         int32_t         cbSsOffset;
 100         int32_t         issExtMax;
 101         int32_t         cbSsExtOffset;
 102         int32_t         ifdMax;
 103         int32_t         cbFdOffset;
 104         int32_t         crfd;
 105         int32_t         cbRfdOffset;
 106         int32_t         iextMax;
 107         int32_t         cbExtOffset;
 108 };
 109
 110 /* Macro for field name used by cgd's Alpha-derived code */
 111 #define esymMax iextMax
 112
 113
 114 struct ecoff_extsym {
 115         u_int16_t       es_flags;
 116         u_int16_t       es_ifd;
 117         int32_t         es_strindex;
 118         int32_t         es_value;
 119         unsigned        es_type:6;
 120         unsigned        es_class:5;
 121         unsigned        :1;
 122         unsigned        es_symauxindex:20;
 123 };