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 #include <sys/core.h>
  24 #include <sys/utsname.h>
  25
  26 #define BYTES_IN_WORD 4
  27
  28 struct header;
  29 struct som_exec_auxhdr;
  30 struct subspace_dictionary;
  31
  32 #define FILE_HDR_SIZE sizeof(struct header)
  33 #define AUX_HDR_SIZE sizeof(struct som_exec_auxhdr)
  34
  35 typedef struct hppa_symbol
  36 {
  37   asymbol symbol;
  38   short desc;
  39   char other;
  40   unsigned char type;
  41 } hppa_symbol_type;
  42
  43 struct hppadata
  44 {
  45   struct header *file_hdr;
  46   struct som_exec_auxhdr *aux_hdr;
  47   hppa_symbol_type *symbols;
  48
  49   /* We remember these offsets so that after check_file_format, we have
  50      no dependencies on the particular format of the exec_hdr.  */
  51
  52   file_ptr sym_filepos;
  53   file_ptr str_filepos;
  54
  55   unsigned stringtab_size;
  56
  57   /* Size of a symbol table entry in external form */
  58   unsigned hp_symbol_entry_size;
  59 };
  60
  61 struct hppa_data_struct {
  62   struct hppadata a;
  63 };
  64
  65 #define padata(bfd)             ((bfd)->tdata.hppa_data->a)
  66 #define obj_file_hdr(bfd)       (padata(bfd).file_hdr)
  67 #define obj_aux_hdr(bfd)        (padata(bfd).aux_hdr)
  68 #define obj_pa_symbols(bfd)     (padata(bfd).symbols)
  69 #define obj_sym_filepos(bfd)    (padata(bfd).sym_filepos)
  70 #define obj_str_filepos(bfd)    (padata(bfd).str_filepos)
  71 #define obj_stringtab_size(bfd) (padata(bfd).stringtab_size)
  72
  73 /* We take the address of the first element of an asymbol to ensure that the
  74    macro is only ever applied to an asymbol */
  75 #define hppa_symbol(asymbol) ((hppa_symbol_type *)(&(asymbol)->the_bfd))
  76
  77
  78 /* These are stored in the bfd's tdata */
  79
  80 struct hppa_core_struct
  81 {
  82   int sig;
  83   char cmd[MAXCOMLEN + 1];
  84   asection *data_section;
  85   asection *stack_section;
  86   asection *reg_section;
  87 };
  88
  89 #define core_hdr(bfd) ((bfd)->tdata.hppa_core_data)
  90 #define core_signal(bfd) (core_hdr(bfd)->sig)
  91 #define core_command(bfd) (core_hdr(bfd)->cmd)
  92 #define core_datasec(bfd) (core_hdr(bfd)->data_section)
  93 #define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
  94 #define core_regsec(bfd) (core_hdr(bfd)->reg_section)
  95
  96 /* HP PA-RISC relocation types */
  97
  98 enum hppa_reloc_field_selector_type
  99 {
 100         R_HPPA_FSEL     = 0x0,
 101         R_HPPA_LSSEL    = 0x1,
 102         R_HPPA_RSSEL    = 0x2,
 103         R_HPPA_LSEL     = 0x3,
 104         R_HPPA_RSEL     = 0x4,
 105         R_HPPA_LDSEL    = 0x5,
 106         R_HPPA_RDSEL    = 0x6,
 107         R_HPPA_LRSEL    = 0x7,
 108         R_HPPA_RRSEL    = 0x8,
 109         R_HPPA_PSEL     = 0x9,  /* P'   : procedure address for shlib's */
 110         R_HPPA_LPSEL    = 0xa,  /* LP'  : L' for procedure addresses    */
 111         R_HPPA_RPSEL    = 0xb,  /* RP'  : R' for procedure addresses    */
 112
 113         R_HPPA_TSEL     = 0xc,  /* T'   : DLT-relative offset for shlib's       */
 114         R_HPPA_LTSEL    = 0xd,  /* LT'  : L' for DLT-relative offsets   */
 115         R_HPPA_RTSEL    = 0xe   /* RT'  : R' for DLT-relative offsets   */
 116
 117 };
 118
 119 /* for compatibility */
 120 enum hppa_reloc_field_selector_type_alt
 121 {
 122         e_fsel  = R_HPPA_FSEL,
 123         e_lssel = R_HPPA_LSSEL,
 124         e_rssel = R_HPPA_RSSEL,
 125         e_lsel  = R_HPPA_LSEL,
 126         e_rsel  = R_HPPA_RSEL,
 127         e_ldsel = R_HPPA_LDSEL,
 128         e_rdsel = R_HPPA_RDSEL,
 129         e_lrsel = R_HPPA_LRSEL,
 130         e_rrsel = R_HPPA_RRSEL,
 131         e_psel  = R_HPPA_PSEL,  /* P'   : procedure address for shlib's */
 132         e_lpsel = R_HPPA_LPSEL, /* LP'  : L' for procedure addresses    */
 133         e_rpsel = R_HPPA_RPSEL, /* RP'  : R' for procedure addresses    */
 134
 135         e_tsel  = R_HPPA_TSEL,  /* T'   : DLT-relative offset for shlib's       */
 136         e_ltsel = R_HPPA_LTSEL, /* LT'  : L' for DLT-relative offsets   */
 137         e_rtsel = R_HPPA_RTSEL  /* RT'  : R' for DLT-relative offsets   */
 138 };
 139
 140 enum hppa_reloc_expr_type
 141 {
 142         R_HPPA_E_ONE    = 0,
 143         R_HPPA_E_TWO    = 1,
 144         R_HPPA_E_PCREL  = 2,
 145         R_HPPA_E_CON    = 3,
 146         R_HPPA_E_PLABEL = 7,
 147         R_HPPA_E_ABS    = 18
 148 };
 149
 150 /* for compatibility */
 151 enum hppa_reloc_expr_type_alt
 152 {
 153         e_one   = R_HPPA_E_ONE,
 154         e_two   = R_HPPA_E_TWO,
 155         e_pcrel = R_HPPA_E_PCREL,
 156         e_con   = R_HPPA_E_CON,
 157         e_plabel = R_HPPA_E_PLABEL,
 158         e_abs   = R_HPPA_E_ABS
 159 };