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 "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 /* Defining MAXCOMLEN avoids bringing in several (7 or 8) otherwise
  38    useless include files which tend to clutter up the namespace.
  39
  40    BSD uses a completely different scheme for object file identification.
  41    so for now, define _PA_RISC_ID to accept any random value for a model
  42    number.  */
  43 #include <a.out.h>
  44 #define MAXCOMLEN 16
  45 #define _PA_RISC_ID(__m_num) 1
  46
  47 #endif /* HOST_HPPABSD */
  48
  49 #define BYTES_IN_WORD 4
  50
  51 struct header;
  52 struct som_exec_auxhdr;
  53 struct subspace_dictionary;
  54
  55 #define FILE_HDR_SIZE sizeof(struct header)
  56 #define AUX_HDR_SIZE sizeof(struct som_exec_auxhdr)
  57
  58 typedef struct hppa_symbol
  59 {
  60   asymbol symbol;
  61   short desc;
  62   char other;
  63   unsigned char type;
  64 } hppa_symbol_type;
  65
  66 struct hppadata
  67 {
  68   struct header *file_hdr;
  69   struct som_exec_auxhdr *aux_hdr;
  70   hppa_symbol_type *symbols;
  71
  72   /* We remember these offsets so that after check_file_format, we have
  73      no dependencies on the particular format of the exec_hdr.  */
  74
  75   file_ptr sym_filepos;
  76   file_ptr str_filepos;
  77
  78   unsigned stringtab_size;
  79
  80   /* Size of a symbol table entry in external form */
  81   unsigned hp_symbol_entry_size;
  82 };
  83
  84 struct hppa_data_struct {
  85   struct hppadata a;
  86 };
  87
  88 #define padata(bfd)             ((bfd)->tdata.hppa_data->a)
  89 #define obj_file_hdr(bfd)       (padata(bfd).file_hdr)
  90 #define obj_aux_hdr(bfd)        (padata(bfd).aux_hdr)
  91 #define obj_pa_symbols(bfd)     (padata(bfd).symbols)
  92 #define obj_sym_filepos(bfd)    (padata(bfd).sym_filepos)
  93 #define obj_str_filepos(bfd)    (padata(bfd).str_filepos)
  94 #define obj_stringtab_size(bfd) (padata(bfd).stringtab_size)
  95
  96 /* We take the address of the first element of an asymbol to ensure that the
  97    macro is only ever applied to an asymbol */
  98 #define hppa_symbol(asymbol) ((hppa_symbol_type *)(&(asymbol)->the_bfd))
  99
 100
 101 /* These are stored in the bfd's tdata */
 102
 103 struct hppa_core_struct
 104 {
 105   int sig;
 106   char cmd[MAXCOMLEN + 1];
 107   asection *data_section;
 108   asection *stack_section;
 109   asection *reg_section;
 110 };
 111
 112 #define core_hdr(bfd) ((bfd)->tdata.hppa_core_data)
 113 #define core_signal(bfd) (core_hdr(bfd)->sig)
 114 #define core_command(bfd) (core_hdr(bfd)->cmd)
 115 #define core_datasec(bfd) (core_hdr(bfd)->data_section)
 116 #define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
 117 #define core_regsec(bfd) (core_hdr(bfd)->reg_section)
 118
 119 /* HP PA-RISC relocation types */
 120
 121 enum hppa_reloc_field_selector_type
 122 {
 123         R_HPPA_FSEL     = 0x0,
 124         R_HPPA_LSSEL    = 0x1,
 125         R_HPPA_RSSEL    = 0x2,
 126         R_HPPA_LSEL     = 0x3,
 127         R_HPPA_RSEL     = 0x4,
 128         R_HPPA_LDSEL    = 0x5,
 129         R_HPPA_RDSEL    = 0x6,
 130         R_HPPA_LRSEL    = 0x7,
 131         R_HPPA_RRSEL    = 0x8,
 132         R_HPPA_PSEL     = 0x9,  /* P'   : procedure address for shlib's */
 133         R_HPPA_LPSEL    = 0xa,  /* LP'  : L' for procedure addresses    */
 134         R_HPPA_RPSEL    = 0xb,  /* RP'  : R' for procedure addresses    */
 135
 136         R_HPPA_TSEL     = 0xc,  /* T'   : DLT-relative offset for shlib's       */
 137         R_HPPA_LTSEL    = 0xd,  /* LT'  : L' for DLT-relative offsets   */
 138         R_HPPA_RTSEL    = 0xe   /* RT'  : R' for DLT-relative offsets   */
 139
 140 };
 141
 142 /* Need to undefine things defined in <machine/som.h> */
 143
 144 #undef e_fsel
 145 #undef e_lssel
 146 #undef e_rssel
 147 #undef e_lsel
 148 #undef e_rsel
 149 #undef e_ldsel
 150 #undef e_rdsel
 151 #undef e_lrsel
 152 #undef e_rrsel
 153 #undef e_psel
 154 #undef e_lpsel
 155 #undef e_rpsel
 156 #undef e_tsel
 157 #undef e_ltsel
 158 #undef e_rtsel
 159 #undef e_one
 160 #undef e_two
 161 #undef e_pcrel
 162 #undef e_con
 163 #undef e_plabel
 164 #undef e_abs
 165
 166 /* for compatibility */
 167 enum hppa_reloc_field_selector_type_alt
 168 {
 169         e_fsel  = R_HPPA_FSEL,
 170         e_lssel = R_HPPA_LSSEL,
 171         e_rssel = R_HPPA_RSSEL,
 172         e_lsel  = R_HPPA_LSEL,
 173         e_rsel  = R_HPPA_RSEL,
 174         e_ldsel = R_HPPA_LDSEL,
 175         e_rdsel = R_HPPA_RDSEL,
 176         e_lrsel = R_HPPA_LRSEL,
 177         e_rrsel = R_HPPA_RRSEL,
 178         e_psel  = R_HPPA_PSEL,  /* P'   : procedure address for shlib's */
 179         e_lpsel = R_HPPA_LPSEL, /* LP'  : L' for procedure addresses    */
 180         e_rpsel = R_HPPA_RPSEL, /* RP'  : R' for procedure addresses    */
 181
 182         e_tsel  = R_HPPA_TSEL,  /* T'   : DLT-relative offset for shlib's       */
 183         e_ltsel = R_HPPA_LTSEL, /* LT'  : L' for DLT-relative offsets   */
 184         e_rtsel = R_HPPA_RTSEL  /* RT'  : R' for DLT-relative offsets   */
 185 };
 186
 187 enum hppa_reloc_expr_type
 188 {
 189         R_HPPA_E_ONE    = 0,
 190         R_HPPA_E_TWO    = 1,
 191         R_HPPA_E_PCREL  = 2,
 192         R_HPPA_E_CON    = 3,
 193         R_HPPA_E_PLABEL = 7,
 194         R_HPPA_E_ABS    = 18
 195 };
 196
 197 /* for compatibility */
 198 enum hppa_reloc_expr_type_alt
 199 {
 200         e_one   = R_HPPA_E_ONE,
 201         e_two   = R_HPPA_E_TWO,
 202         e_pcrel = R_HPPA_E_PCREL,
 203         e_con   = R_HPPA_E_CON,
 204         e_plabel = R_HPPA_E_PLABEL,
 205         e_abs   = R_HPPA_E_ABS
 206 };
 207
 208 #endif /* _LIBHPPA_H */