bfd/libhppa.h

   1 /* HP PA-RISC SOM object file format:  definitions internal to BFD.
   2    Copyright (C) 1990-1991 Free Software Foundation, Inc.
   3
   4    Contributed by the Center for Software Science at the
   5    University of Utah (pa-gdb-bugs@cs.utah.edu).
   6
   7 This file is part of BFD, the Binary File Descriptor library.
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program; if not, write to the Free Software
  21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  22
  23 #ifndef _LIBHPPA_H
  24 #define _LIBHPPA_H
  25
  26 #include "../bfd/sysdep.h"
  27
  28 #ifdef HOST_HPPAHPUX
  29
  30 #include <sys/core.h>
  31 #include <sys/utsname.h>
  32
  33 #endif /* HOST_HPPAHPUX */
  34
  35 #ifdef HOST_HPPABSD
  36
  37 /* BSD uses a completely different scheme for object file identification.
  38    so for now, define _PA_RISC_ID to accept any random value for a model
  39    number.  */
  40
  41 #include <a.out.h>
  42
  43 /* Not a very swift place to put it, but that's where the BSD port
  44    puts them.  */
  45 #include "/hpux/usr/include/sys/core.h"
  46 #ifndef _PA_RISC_ID
  47 #define _PA_RISC_ID(__m_num) 1
  48 #endif
  49
  50 #endif /* HOST_HPPABSD */
  51
  52 /* Defining MAXCOMLEN avoids bringing in several (7 or 8) otherwise
  53    useless include files which tend to clutter up the namespace.  */
  54
  55 #define MAXCOMLEN 16
  56
  57 #define BYTES_IN_WORD 4
  58
  59 struct header;
  60 struct som_exec_auxhdr;
  61 struct subspace_dictionary;
  62
  63 #define FILE_HDR_SIZE sizeof(struct header)
  64 #define AUX_HDR_SIZE sizeof(struct som_exec_auxhdr)
  65
  66 typedef struct hppa_symbol
  67 {
  68   asymbol symbol;
  69   short desc;
  70   char other;
  71   unsigned char type;
  72 } hppa_symbol_type;
  73
  74 struct hppadata
  75 {
  76   struct header *file_hdr;
  77   struct som_exec_auxhdr *aux_hdr;
  78   hppa_symbol_type *symbols;
  79
  80   /* We remember these offsets so that after check_file_format, we have
  81      no dependencies on the particular format of the exec_hdr.  */
  82
  83   file_ptr sym_filepos;
  84   file_ptr str_filepos;
  85
  86   unsigned stringtab_size;
  87
  88   /* Size of a symbol table entry in external form */
  89   unsigned hp_symbol_entry_size;
  90 };
  91
  92 struct hppa_data_struct {
  93   struct hppadata a;
  94 };
  95
  96 #define padata(bfd)             ((bfd)->tdata.hppa_data->a)
  97 #define obj_file_hdr(bfd)       (padata(bfd).file_hdr)
  98 #define obj_aux_hdr(bfd)        (padata(bfd).aux_hdr)
  99 #define obj_pa_symbols(bfd)     (padata(bfd).symbols)
 100 #define obj_sym_filepos(bfd)    (padata(bfd).sym_filepos)
 101 #define obj_str_filepos(bfd)    (padata(bfd).str_filepos)
 102 #define obj_stringtab_size(bfd) (padata(bfd).stringtab_size)
 103
 104 /* We take the address of the first element of an asymbol to ensure that the
 105    macro is only ever applied to an asymbol */
 106 #define hppa_symbol(asymbol) ((hppa_symbol_type *)(&(asymbol)->the_bfd))
 107
 108
 109 /* These are stored in the bfd's tdata */
 110
 111 struct hppa_core_struct
 112 {
 113   int sig;
 114   char cmd[MAXCOMLEN + 1];
 115   asection *data_section;
 116   asection *stack_section;
 117   asection *reg_section;
 118 };
 119
 120 #define core_hdr(bfd) ((bfd)->tdata.hppa_core_data)
 121 #define core_signal(bfd) (core_hdr(bfd)->sig)
 122 #define core_command(bfd) (core_hdr(bfd)->cmd)
 123 #define core_datasec(bfd) (core_hdr(bfd)->data_section)
 124 #define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
 125 #define core_regsec(bfd) (core_hdr(bfd)->reg_section)
 126
 127 /* HP PA-RISC relocation types */
 128
 129 enum hppa_reloc_field_selector_type
 130 {
 131         R_HPPA_FSEL     = 0x0,
 132         R_HPPA_LSSEL    = 0x1,
 133         R_HPPA_RSSEL    = 0x2,
 134         R_HPPA_LSEL     = 0x3,
 135         R_HPPA_RSEL     = 0x4,
 136         R_HPPA_LDSEL    = 0x5,
 137         R_HPPA_RDSEL    = 0x6,
 138         R_HPPA_LRSEL    = 0x7,
 139         R_HPPA_RRSEL    = 0x8,
 140         R_HPPA_PSEL     = 0x9,  /* P'   : procedure address for shlib's */
 141         R_HPPA_LPSEL    = 0xa,  /* LP'  : L' for procedure addresses    */
 142         R_HPPA_RPSEL    = 0xb,  /* RP'  : R' for procedure addresses    */
 143
 144         R_HPPA_TSEL     = 0xc,  /* T'   : DLT-relative offset for shlib's       */
 145         R_HPPA_LTSEL    = 0xd,  /* LT'  : L' for DLT-relative offsets   */
 146         R_HPPA_RTSEL    = 0xe   /* RT'  : R' for DLT-relative offsets   */
 147
 148 };
 149
 150 /* Need to undefine things defined in <machine/som.h> */
 151
 152 #undef e_fsel
 153 #undef e_lssel
 154 #undef e_rssel
 155 #undef e_lsel
 156 #undef e_rsel
 157 #undef e_ldsel
 158 #undef e_rdsel
 159 #undef e_lrsel
 160 #undef e_rrsel
 161 #undef e_psel
 162 #undef e_lpsel
 163 #undef e_rpsel
 164 #undef e_tsel
 165 #undef e_ltsel
 166 #undef e_rtsel
 167 #undef e_one
 168 #undef e_two
 169 #undef e_pcrel
 170 #undef e_con
 171 #undef e_plabel
 172 #undef e_abs
 173
 174 /* for compatibility */
 175 enum hppa_reloc_field_selector_type_alt
 176 {
 177         e_fsel  = R_HPPA_FSEL,
 178         e_lssel = R_HPPA_LSSEL,
 179         e_rssel = R_HPPA_RSSEL,
 180         e_lsel  = R_HPPA_LSEL,
 181         e_rsel  = R_HPPA_RSEL,
 182         e_ldsel = R_HPPA_LDSEL,
 183         e_rdsel = R_HPPA_RDSEL,
 184         e_lrsel = R_HPPA_LRSEL,
 185         e_rrsel = R_HPPA_RRSEL,
 186         e_psel  = R_HPPA_PSEL,  /* P'   : procedure address for shlib's */
 187         e_lpsel = R_HPPA_LPSEL, /* LP'  : L' for procedure addresses    */
 188         e_rpsel = R_HPPA_RPSEL, /* RP'  : R' for procedure addresses    */
 189
 190         e_tsel  = R_HPPA_TSEL,  /* T'   : DLT-relative offset for shlib's       */
 191         e_ltsel = R_HPPA_LTSEL, /* LT'  : L' for DLT-relative offsets   */
 192         e_rtsel = R_HPPA_RTSEL  /* RT'  : R' for DLT-relative offsets   */
 193 };
 194
 195 enum hppa_reloc_expr_type
 196 {
 197         R_HPPA_E_ONE    = 0,
 198         R_HPPA_E_TWO    = 1,
 199         R_HPPA_E_PCREL  = 2,
 200         R_HPPA_E_CON    = 3,
 201         R_HPPA_E_PLABEL = 7,
 202         R_HPPA_E_ABS    = 18
 203 };
 204
 205 /* for compatibility */
 206 enum hppa_reloc_expr_type_alt
 207 {
 208         e_one   = R_HPPA_E_ONE,
 209         e_two   = R_HPPA_E_TWO,
 210         e_pcrel = R_HPPA_E_PCREL,
 211         e_con   = R_HPPA_E_CON,
 212         e_plabel = R_HPPA_E_PLABEL,
 213         e_abs   = R_HPPA_E_ABS
 214 };
 215
 216 #endif /* _LIBHPPA_H */