tools/amiga-aout2bb/sys/exec_aout.h

   1 /*      $NetBSD: exec_aout.h,v 1.33 2004/02/11 01:03:35 matt Exp $      */
   2
   3 /*
   4  * Copyright (c) 1993, 1994 Christopher G. Demetriou
   5  * 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. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Christopher G. Demetriou.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #ifndef _SYS_EXEC_AOUT_H_
  34 #define _SYS_EXEC_AOUT_H_
  35
  36 #ifndef N_PAGSIZ
  37 #define N_PAGSIZ(ex)    (AOUT_LDPGSZ)
  38 #endif
  39
  40 /*
  41  * Header prepended to each a.out file.
  42  * only manipulate the a_midmag field via the
  43  * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below.
  44  */
  45 struct exec {
  46         u_long  a_midmag;       /* htonl(flags<<26 | mid<<16 | magic) */
  47         u_long  a_text;         /* text segment size */
  48         u_long  a_data;         /* initialized data size */
  49         u_long  a_bss;          /* uninitialized data size */
  50         u_long  a_syms;         /* symbol table size */
  51         u_long  a_entry;        /* entry point */
  52         u_long  a_trsize;       /* text relocation size */
  53         u_long  a_drsize;       /* data relocation size */
  54 };
  55
  56 /* a_magic */
  57 #define OMAGIC          0407    /* old impure format */
  58 #define NMAGIC          0410    /* read-only text */
  59 #define ZMAGIC          0413    /* demand load format */
  60 #define QMAGIC          0314    /* "compact" demand load format; deprecated */
  61
  62 /*
  63  * a_mid - keep sorted in numerical order for sanity's sake
  64  * ensure that: 0 < mid < 0x3ff
  65  */
  66 #define MID_ZERO        0       /* unknown - implementation dependent */
  67 #define MID_SUN010      1       /* sun 68010/68020 binary */
  68 #define MID_SUN020      2       /* sun 68020-only binary */
  69 #define MID_PC386       100     /* 386 PC binary. (so quoth BFD) */
  70 #define MID_HP200       200     /* hp200 (68010) BSD binary */
  71 #define MID_I386        134     /* i386 BSD binary */
  72 #define MID_M68K        135     /* m68k BSD binary with 8K page sizes */
  73 #define MID_M68K4K      136     /* m68k BSD binary with 4K page sizes */
  74 #define MID_NS32532     137     /* ns32532 */
  75 #define MID_SPARC       138     /* sparc */
  76 #define MID_PMAX        139     /* pmax */
  77 #define MID_VAX1K       140     /* VAX 1K page size binaries */
  78 #define MID_ALPHA       141     /* Alpha BSD binary */
  79 #define MID_MIPS        142     /* big-endian MIPS */
  80 #define MID_ARM6        143     /* ARM6 */
  81 #define MID_M680002K    144     /* m68000 with 2K page sizes */
  82 #define MID_SH3         145     /* SH3 */
  83 #define MID_POWERPC     149     /* big-endian PowerPC */
  84 #define MID_VAX         150     /* VAX */
  85                                 /* 151 - MIPS1 */
  86                                 /* 152 - MIPS2 */
  87 #define MID_M88K        153     /* m88k BSD */
  88 #define MID_HPPA        154     /* HP PARISC */
  89 #define MID_SH5_64      155     /* LP64 SH5 */
  90 #define MID_SPARC64     156     /* LP64 sparc */
  91 #define MID_X86_64      157     /* AMD x86-64 */
  92 #define MID_SH5_32      158     /* ILP32 SH5 */
  93 #define MID_HP200       200     /* hp200 (68010) BSD binary */
  94 #define MID_HP300       300     /* hp300 (68020+68881) BSD binary */
  95 #define MID_HPUX        0x20C   /* hp200/300 HP-UX binary */
  96 #define MID_HPUX800     0x20B   /* hp800 HP-UX binary */
  97
  98 /*
  99  * a_flags
 100  */
 101 #define EX_DYNAMIC      0x20
 102 #define EX_PIC          0x10
 103 #define EX_DPMASK       0x30
 104 /*
 105  * Interpretation of the (a_flags & EX_DPMASK) bits:
 106  *
 107  *      00              traditional executable or object file
 108  *      01              object file contains PIC code (set by `as -k')
 109  *      10              dynamic executable
 110  *      11              position independent executable image
 111  *                      (eg. a shared library)
 112  *
 113  */
 114
 115 /*
 116  * The a.out structure's a_midmag field is a network-byteorder encoding
 117  * of this int
 118  *      FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM
 119  * Where `F' is 6 bits of flag like EX_DYNAMIC,
 120  *       `m' is 10 bits of machine-id like MID_I386, and
 121  *       `M' is 16 bits worth of magic number, ie. ZMAGIC.
 122  * The macros below will set/get the needed fields.
 123  */
 124 #define N_GETMAGIC(ex) \
 125     ((((ex).a_midmag)&0xffff0000) ? \
 126     (ntohl((u_int32_t)((ex).a_midmag))&0xffff) : ((ex).a_midmag))
 127 #define N_GETMAGIC2(ex) \
 128     ((((ex).a_midmag)&0xffff0000) ? \
 129     (ntohl((u_int32_t)((ex).a_midmag))&0xffff) : (((ex).a_midmag) | 0x10000))
 130 #define N_GETMID(ex) \
 131     ((((ex).a_midmag)&0xffff0000) ? \
 132     ((ntohl((u_int32_t)((ex).a_midmag))>>16)&0x03ff) : MID_ZERO)
 133 #define N_GETFLAG(ex) \
 134     ((((ex).a_midmag)&0xffff0000) ? \
 135     ((ntohl((u_int32_t)((ex).a_midmag))>>26)&0x3f) : 0)
 136 #define N_SETMAGIC(ex,mag,mid,flag) \
 137     ((ex).a_midmag = htonl((u_int32_t) \
 138     ((((flag)&0x3f)<<26)|(((mid)&0x03ff)<<16)|(((mag)&0xffff)))))
 139
 140 #define N_ALIGN(ex,x) \
 141         (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ? \
 142         ((x) + AOUT_LDPGSZ - 1) & ~(AOUT_LDPGSZ - 1) : (x))
 143
 144 /* Valid magic number check. */
 145 #define N_BADMAG(ex) \
 146         (N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \
 147         N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC)
 148
 149 /* Address of the bottom of the text segment. */
 150 #define N_TXTADDR(ex)   (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : AOUT_LDPGSZ)
 151
 152 /* Address of the bottom of the data segment. */
 153 #define N_DATADDR(ex) \
 154         (N_GETMAGIC(ex) == OMAGIC ? N_TXTADDR(ex) + (ex).a_text : \
 155         (N_TXTADDR(ex) + (ex).a_text + AOUT_LDPGSZ - 1) & ~(AOUT_LDPGSZ - 1))
 156
 157 /* Address of the bottom of the bss segment. */
 158 #define N_BSSADDR(ex) \
 159         (N_DATADDR(ex) + (ex).a_data)
 160
 161 /* Text segment offset. */
 162 #define N_TXTOFF(ex) \
 163         ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
 164         0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? AOUT_LDPGSZ : \
 165         sizeof(struct exec)) )
 166
 167 /* Data segment offset. */
 168 #define N_DATOFF(ex) \
 169         N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
 170
 171 /* Text relocation table offset. */
 172 #define N_TRELOFF(ex) \
 173         (N_DATOFF(ex) + (ex).a_data)
 174
 175 /* Data relocation table offset. */
 176 #define N_DRELOFF(ex) \
 177         (N_TRELOFF(ex) + (ex).a_trsize)
 178
 179 /* Symbol table offset. */
 180 #define N_SYMOFF(ex) \
 181         (N_DRELOFF(ex) + (ex).a_drsize)
 182
 183 /* String table offset. */
 184 #define N_STROFF(ex) \
 185         (N_SYMOFF(ex) + (ex).a_syms)
 186
 187 #include <machine/aout_machdep.h>
 188
 189 #ifdef _KERNEL
 190
 191 /* the "a.out" format's entry in the exec switch */
 192 int     exec_aout_makecmds __P((struct proc *, struct exec_package *));
 193
 194 /* functions which prepare various a.out executable types */
 195 /*
 196  * MI portion
 197  */
 198 int     exec_aout_prep_zmagic __P((struct proc *, struct exec_package *));
 199 int     exec_aout_prep_nmagic __P((struct proc *, struct exec_package *));
 200 int     exec_aout_prep_omagic __P((struct proc *, struct exec_package *));
 201
 202 /* For compatibility modules */
 203 int     exec_aout_prep_oldzmagic __P((struct proc *, struct exec_package *));
 204 int     exec_aout_prep_oldnmagic __P((struct proc *, struct exec_package *));
 205 int     exec_aout_prep_oldomagic __P((struct proc *, struct exec_package *));
 206
 207 /*
 208  * MD portion
 209  */
 210 int     cpu_exec_aout_makecmds __P((struct proc *, struct exec_package *));
 211
 212 #endif /* _KERNEL */
 213
 214 #endif /* !_SYS_EXEC_AOUT_H_ */