| 1 | /* BFD back-end for VERSAdos-E objects. | 
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| 2 | Copyright 1995, 1996, 1998, 1999, 2000 Free Software Foundation, Inc. | 
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| 3 | Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>. | 
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| 4 |  | 
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| 5 | Versados is a Motorola trademark. | 
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| 6 |  | 
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| 7 | This file is part of BFD, the Binary File Descriptor library. | 
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| 8 |  | 
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| 9 | This program is free software; you can redistribute it and/or modify | 
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| 10 | it under the terms of the GNU General Public License as published by | 
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| 11 | the Free Software Foundation; either version 2 of the License, or | 
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| 12 | (at your option) any later version. | 
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| 13 |  | 
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| 14 | This program is distributed in the hope that it will be useful, | 
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| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | 
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| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
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| 17 | GNU General Public License for more details. | 
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| 18 |  | 
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| 19 | You should have received a copy of the GNU General Public License | 
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| 20 | along with this program; if not, write to the Free Software | 
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| 21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */ | 
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| 22 |  | 
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| 23 | /* | 
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| 24 | SUBSECTION | 
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| 25 | VERSAdos-E relocateable object file format | 
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| 26 |  | 
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| 27 | DESCRIPTION | 
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| 28 |  | 
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| 29 | This module supports reading of VERSAdos relocateable | 
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| 30 | object files. | 
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| 31 |  | 
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| 32 | A VERSAdos file looks like contains | 
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| 33 |  | 
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| 34 | o Indentification Record | 
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| 35 | o External Symbol Definition Record | 
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| 36 | o Object Text Recrod | 
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| 37 | o End Record | 
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| 38 |  | 
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| 39 | */ | 
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| 40 |  | 
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| 41 | #include "bfd.h" | 
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| 42 | #include "sysdep.h" | 
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| 43 | #include "libbfd.h" | 
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| 44 | #include "libiberty.h" | 
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| 45 |  | 
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| 46 | static boolean versados_mkobject PARAMS ((bfd *)); | 
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| 47 | static boolean versados_scan PARAMS ((bfd *)); | 
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| 48 | static const bfd_target *versados_object_p PARAMS ((bfd *)); | 
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| 49 |  | 
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| 50 | #define VHEADER '1' | 
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| 51 | #define VESTDEF '2' | 
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| 52 | #define VOTR '3' | 
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| 53 | #define VEND '4' | 
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| 54 |  | 
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| 55 | #define ES_BASE 17              /* first symbol has esdid 17 */ | 
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| 56 |  | 
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| 57 | /* Per file target dependent information */ | 
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| 58 |  | 
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| 59 | /* one for each section */ | 
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| 60 | struct esdid | 
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| 61 | { | 
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| 62 | asection *section;          /* ptr to bfd version */ | 
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| 63 | unsigned char *contents;    /* used to build image */ | 
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| 64 | int pc; | 
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| 65 | int relocs;                 /* reloc count, valid end of pass 1 */ | 
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| 66 | int donerel;                /* have relocs been translated */ | 
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| 67 | }; | 
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| 68 |  | 
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| 69 | typedef struct versados_data_struct | 
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| 70 | { | 
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| 71 | int es_done;                /* count of symbol index, starts at ES_BASE */ | 
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| 72 | asymbol *symbols;           /* pointer to local symbols */ | 
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| 73 | char *strings;              /* strings of all the above */ | 
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| 74 | int stringlen;              /* len of string table (valid end of pass1) */ | 
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| 75 | int nsecsyms;               /* number of sections */ | 
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| 76 |  | 
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| 77 | int ndefs;                  /* number of exported symbols (they dont get esdids) */ | 
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| 78 | int nrefs;                  /* number of imported symbols  (valid end of pass1) */ | 
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| 79 |  | 
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| 80 | int ref_idx;                /* current processed value of the above */ | 
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| 81 | int def_idx; | 
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| 82 |  | 
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| 83 | int pass_2_done; | 
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| 84 |  | 
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| 85 | struct esdid e[16];         /* per section info */ | 
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| 86 | int alert;                  /* to see if we're trampling */ | 
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| 87 | asymbol *rest[256 - 16];    /* per symbol info */ | 
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| 88 |  | 
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| 89 | } | 
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| 90 | tdata_type; | 
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| 91 |  | 
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| 92 | #define VDATA(abfd)       (abfd->tdata.versados_data) | 
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| 93 | #define EDATA(abfd, n)    (abfd->tdata.versados_data->e[n]) | 
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| 94 | #define RDATA(abfd, n)    (abfd->tdata.versados_data->rest[n]) | 
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| 95 |  | 
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| 96 | struct ext_otr | 
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| 97 | { | 
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| 98 | unsigned char size; | 
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| 99 | char type; | 
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| 100 | unsigned char map[4]; | 
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| 101 | unsigned char esdid; | 
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| 102 | unsigned char data[200]; | 
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| 103 | }; | 
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| 104 |  | 
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| 105 | struct ext_vheader | 
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| 106 | { | 
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| 107 | unsigned char size; | 
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| 108 | char type;                  /* record type */ | 
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| 109 | char name[10];              /* module name */ | 
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| 110 | char rev;                   /* module rev number */ | 
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| 111 | char lang; | 
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| 112 | char vol[4]; | 
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| 113 | char user[2]; | 
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| 114 | char cat[8]; | 
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| 115 | char fname[8]; | 
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| 116 | char ext[2]; | 
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| 117 | char time[3]; | 
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| 118 | char date[3]; | 
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| 119 | char rest[211]; | 
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| 120 | }; | 
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| 121 |  | 
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| 122 | struct ext_esd | 
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| 123 | { | 
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| 124 | unsigned char size; | 
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| 125 | char type; | 
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| 126 | unsigned char esd_entries[1]; | 
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| 127 | }; | 
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| 128 | #define ESD_ABS         0 | 
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| 129 | #define ESD_COMMON      1 | 
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| 130 | #define ESD_STD_REL_SEC 2 | 
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| 131 | #define ESD_SHRT_REL_SEC 3 | 
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| 132 | #define ESD_XDEF_IN_SEC 4 | 
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| 133 | #define ESD_XREF_SYM    7 | 
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| 134 | #define ESD_XREF_SEC    6 | 
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| 135 | #define ESD_XDEF_IN_ABS 5 | 
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| 136 | union ext_any | 
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| 137 | { | 
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| 138 | unsigned char size; | 
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| 139 | struct ext_vheader header; | 
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| 140 | struct ext_esd esd; | 
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| 141 | struct ext_otr otr; | 
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| 142 | }; | 
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| 143 |  | 
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| 144 | /* Initialize by filling in the hex conversion array.  */ | 
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| 145 |  | 
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| 146 | /* Set up the tdata information.  */ | 
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| 147 |  | 
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| 148 | static boolean | 
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| 149 | versados_mkobject (abfd) | 
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| 150 | bfd *abfd; | 
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| 151 | { | 
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| 152 | if (abfd->tdata.versados_data == NULL) | 
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| 153 | { | 
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| 154 | tdata_type *tdata = (tdata_type *) bfd_alloc (abfd, sizeof (tdata_type)); | 
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| 155 | if (tdata == NULL) | 
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| 156 | return false; | 
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| 157 | abfd->tdata.versados_data = tdata; | 
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| 158 | tdata->symbols = NULL; | 
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| 159 | VDATA (abfd)->alert = 0x12345678; | 
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| 160 | } | 
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| 161 |  | 
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| 162 | bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0); | 
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| 163 | return true; | 
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| 164 | } | 
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| 165 |  | 
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| 166 | /* Report a problem in an S record file.  FIXME: This probably should | 
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| 167 | not call fprintf, but we really do need some mechanism for printing | 
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| 168 | error messages.  */ | 
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| 169 |  | 
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| 170 | static asymbol * | 
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| 171 | versados_new_symbol (abfd, snum, name, val, sec) | 
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| 172 | bfd *abfd; | 
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| 173 | int snum; | 
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| 174 | const char *name; | 
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| 175 | bfd_vma val; | 
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| 176 | asection *sec; | 
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| 177 | { | 
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| 178 | asymbol *n = VDATA (abfd)->symbols + snum; | 
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| 179 | n->name = name; | 
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| 180 | n->value = val; | 
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| 181 | n->section = sec; | 
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| 182 | n->the_bfd = abfd; | 
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| 183 | n->flags = 0; | 
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| 184 | return n; | 
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| 185 | } | 
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| 186 |  | 
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| 187 | static int | 
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| 188 | get_record (abfd, ptr) | 
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| 189 | bfd *abfd; | 
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| 190 | union ext_any *ptr; | 
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| 191 | { | 
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| 192 | bfd_read (&ptr->size, 1, 1, abfd); | 
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| 193 | if (bfd_read ((char *) ptr + 1, 1, ptr->size, abfd) != ptr->size) | 
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| 194 | return 0; | 
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| 195 | return 1; | 
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| 196 | } | 
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| 197 |  | 
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| 198 | int | 
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| 199 | get_4 (pp) | 
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| 200 | unsigned char **pp; | 
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| 201 | { | 
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| 202 | unsigned char *p = *pp; | 
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| 203 | *pp += 4; | 
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| 204 | return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3] << 0); | 
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| 205 | } | 
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| 206 |  | 
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| 207 | void | 
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| 208 | get_10 (pp, name) | 
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| 209 | unsigned char **pp; | 
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| 210 | char *name; | 
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| 211 | { | 
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| 212 | char *p = (char *) *pp; | 
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| 213 | int len = 10; | 
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| 214 | *pp += len; | 
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| 215 | while (*p != ' ' | 
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| 216 | && len) | 
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| 217 | { | 
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| 218 | *name++ = *p++; | 
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| 219 | len--; | 
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| 220 | } | 
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| 221 | *name = 0; | 
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| 222 | } | 
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| 223 |  | 
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| 224 | static char * | 
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| 225 | new_symbol_string (abfd, name) | 
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| 226 | bfd *abfd; | 
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| 227 | char *name; | 
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| 228 | { | 
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| 229 | char *n = VDATA (abfd)->strings; | 
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| 230 | strcpy (VDATA (abfd)->strings, name); | 
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| 231 | VDATA (abfd)->strings += strlen (VDATA (abfd)->strings) + 1; | 
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| 232 | return n; | 
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| 233 | } | 
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| 234 |  | 
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| 235 | static void | 
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| 236 | process_esd (abfd, esd, pass) | 
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| 237 | bfd *abfd; | 
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| 238 | struct ext_esd *esd; | 
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| 239 | int pass; | 
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| 240 | { | 
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| 241 | /* Read through the ext def for the est entries */ | 
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| 242 | int togo = esd->size - 2; | 
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| 243 | bfd_vma size; | 
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| 244 | bfd_vma start; | 
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| 245 | asection *sec; | 
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| 246 | char name[11]; | 
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| 247 | unsigned char *ptr = esd->esd_entries; | 
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| 248 | unsigned char *end = ptr + togo; | 
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| 249 | while (ptr < end) | 
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| 250 | { | 
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| 251 | int scn = *ptr & 0xf; | 
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| 252 | int typ = (*ptr >> 4) & 0xf; | 
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| 253 |  | 
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| 254 | /* Declare this section */ | 
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| 255 | sprintf (name, "%d", scn); | 
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| 256 | sec = bfd_make_section_old_way (abfd, strdup (name)); | 
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| 257 | sec->target_index = scn; | 
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| 258 | EDATA (abfd, scn).section = sec; | 
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| 259 | ptr++; | 
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| 260 | switch (typ) | 
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| 261 | { | 
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| 262 | default: | 
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| 263 | abort (); | 
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| 264 | case ESD_XREF_SEC: | 
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| 265 | case ESD_XREF_SYM: | 
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| 266 | { | 
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| 267 | int snum = VDATA (abfd)->ref_idx++; | 
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| 268 | get_10 (&ptr, name); | 
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| 269 | if (pass == 1) | 
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| 270 | { | 
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| 271 | VDATA (abfd)->stringlen += strlen (name) + 1; | 
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| 272 | } | 
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| 273 | else | 
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| 274 | { | 
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| 275 | int esidx; | 
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| 276 | asymbol *s; | 
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| 277 | char *n = new_symbol_string (abfd, name); | 
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| 278 | s = versados_new_symbol (abfd, snum, n, 0, | 
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| 279 | &bfd_und_section, scn); | 
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| 280 | esidx = VDATA (abfd)->es_done++; | 
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| 281 | RDATA (abfd, esidx - ES_BASE) = s; | 
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| 282 | } | 
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| 283 | } | 
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| 284 | break; | 
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| 285 |  | 
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| 286 | case ESD_ABS: | 
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| 287 | size = get_4 (&ptr); | 
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| 288 | start = get_4 (&ptr); | 
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| 289 | break; | 
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| 290 | case ESD_STD_REL_SEC: | 
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| 291 | case ESD_SHRT_REL_SEC: | 
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| 292 | { | 
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| 293 | sec->_raw_size = get_4 (&ptr); | 
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| 294 | sec->flags |= SEC_ALLOC; | 
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| 295 | } | 
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| 296 | break; | 
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| 297 | case ESD_XDEF_IN_ABS: | 
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| 298 | sec = (asection *) & bfd_abs_section; | 
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| 299 | case ESD_XDEF_IN_SEC: | 
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| 300 | { | 
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| 301 | int snum = VDATA (abfd)->def_idx++; | 
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| 302 | long val; | 
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| 303 | get_10 (&ptr, name); | 
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| 304 | val = get_4 (&ptr); | 
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| 305 | if (pass == 1) | 
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| 306 | { | 
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| 307 | /* Just remember the symbol */ | 
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| 308 | VDATA (abfd)->stringlen += strlen (name) + 1; | 
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| 309 | } | 
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| 310 | else | 
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| 311 | { | 
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| 312 | asymbol *s; | 
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| 313 | char *n = new_symbol_string (abfd, name); | 
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| 314 | s = versados_new_symbol (abfd, snum + VDATA (abfd)->nrefs, n, val, sec, scn); | 
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| 315 | s->flags |= BSF_GLOBAL; | 
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| 316 | } | 
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| 317 | } | 
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| 318 | break; | 
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| 319 | } | 
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| 320 | } | 
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| 321 | } | 
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| 322 |  | 
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| 323 | #define R_RELWORD 1 | 
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| 324 | #define R_RELLONG 2 | 
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| 325 | #define R_RELWORD_NEG 3 | 
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| 326 | #define R_RELLONG_NEG 4 | 
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| 327 |  | 
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| 328 | reloc_howto_type versados_howto_table[] = | 
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| 329 | { | 
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| 330 | HOWTO (R_RELWORD, 0, 1, 16, false, | 
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| 331 | 0, complain_overflow_dont, 0, | 
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| 332 | "+v16", true, 0x0000ffff, 0x0000ffff, false), | 
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| 333 | HOWTO (R_RELLONG, 0, 2, 32, false, | 
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| 334 | 0, complain_overflow_dont, 0, | 
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| 335 | "+v32", true, 0xffffffff, 0xffffffff, false), | 
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| 336 |  | 
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| 337 | HOWTO (R_RELWORD_NEG, 0, -1, 16, false, | 
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| 338 | 0, complain_overflow_dont, 0, | 
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| 339 | "-v16", true, 0x0000ffff, 0x0000ffff, false), | 
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| 340 | HOWTO (R_RELLONG_NEG, 0, -2, 32, false, | 
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| 341 | 0, complain_overflow_dont, 0, | 
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| 342 | "-v32", true, 0xffffffff, 0xffffffff, false), | 
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| 343 | }; | 
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| 344 |  | 
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| 345 | static int | 
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| 346 | get_offset (len, ptr) | 
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| 347 | int len; | 
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| 348 | unsigned char *ptr; | 
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| 349 | { | 
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| 350 | int val = 0; | 
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| 351 | if (len) | 
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| 352 | { | 
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| 353 | int i; | 
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| 354 | val = *ptr++; | 
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| 355 | if (val & 0x80) | 
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| 356 | val |= ~0xff; | 
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| 357 | for (i = 1; i < len; i++) | 
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| 358 | val = (val << 8) | *ptr++; | 
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| 359 | } | 
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| 360 |  | 
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| 361 | return val; | 
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| 362 | } | 
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| 363 |  | 
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| 364 | static void | 
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| 365 | process_otr (abfd, otr, pass) | 
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| 366 | bfd *abfd; | 
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| 367 | struct ext_otr *otr; | 
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| 368 | int pass; | 
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| 369 | { | 
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| 370 | unsigned long shift; | 
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| 371 | unsigned char *srcp = otr->data; | 
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| 372 | unsigned char *endp = (unsigned char *) otr + otr->size; | 
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| 373 | unsigned int bits = (otr->map[0] << 24) | 
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| 374 | | (otr->map[1] << 16) | 
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| 375 | | (otr->map[2] << 8) | 
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| 376 | | (otr->map[3] << 0); | 
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| 377 |  | 
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| 378 | struct esdid *esdid = &EDATA (abfd, otr->esdid - 1); | 
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| 379 | unsigned char *contents = esdid->contents; | 
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| 380 | int need_contents = 0; | 
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| 381 | unsigned int dst_idx = esdid->pc; | 
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| 382 |  | 
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| 383 | for (shift = (1 << 31); shift && srcp < endp; shift >>= 1) | 
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| 384 | { | 
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| 385 | if (bits & shift) | 
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| 386 | { | 
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| 387 | int flag = *srcp++; | 
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| 388 | int esdids = (flag >> 5) & 0x7; | 
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| 389 | int sizeinwords = ((flag >> 3) & 1) ? 2 : 1; | 
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| 390 | int offsetlen = flag & 0x7; | 
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| 391 | int j; | 
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| 392 |  | 
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| 393 | if (esdids == 0) | 
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| 394 | { | 
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| 395 | /* A zero esdid means the new pc is the offset given */ | 
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| 396 | dst_idx += get_offset (offsetlen, srcp); | 
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| 397 | srcp += offsetlen; | 
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| 398 | } | 
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| 399 | else | 
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| 400 | { | 
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| 401 | int val = get_offset (offsetlen, srcp + esdids); | 
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| 402 | if (pass == 1) | 
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| 403 | need_contents = 1; | 
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| 404 | else | 
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| 405 | for (j = 0; j < sizeinwords * 2; j++) | 
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| 406 | { | 
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| 407 | contents[dst_idx + (sizeinwords * 2) - j - 1] = val; | 
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| 408 | val >>= 8; | 
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| 409 | } | 
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| 410 |  | 
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| 411 | for (j = 0; j < esdids; j++) | 
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| 412 | { | 
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| 413 | int esdid = *srcp++; | 
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| 414 |  | 
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| 415 | if (esdid) | 
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| 416 | { | 
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| 417 | int rn = EDATA (abfd, otr->esdid - 1).relocs++; | 
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| 418 | if (pass == 1) | 
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| 419 | { | 
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| 420 | /* this is the first pass over the data, | 
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| 421 | just remember that we need a reloc */ | 
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| 422 | } | 
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| 423 | else | 
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| 424 | { | 
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| 425 | arelent *n = | 
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| 426 | EDATA (abfd, otr->esdid - 1).section->relocation + rn; | 
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| 427 | n->address = dst_idx; | 
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| 428 |  | 
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| 429 | n->sym_ptr_ptr = (asymbol **) esdid; | 
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| 430 | n->addend = 0; | 
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| 431 | n->howto = versados_howto_table + ((j & 1) * 2) + (sizeinwords - 1); | 
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| 432 | } | 
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| 433 | } | 
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| 434 | } | 
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| 435 | srcp += offsetlen; | 
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| 436 | dst_idx += sizeinwords * 2; | 
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| 437 | } | 
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| 438 | } | 
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| 439 | else | 
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| 440 | { | 
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| 441 | need_contents = 1; | 
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| 442 | if (dst_idx < esdid->section->_raw_size) | 
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| 443 | if (pass == 2) | 
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| 444 | { | 
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| 445 | /* absolute code, comes in 16 bit lumps */ | 
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| 446 | contents[dst_idx] = srcp[0]; | 
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| 447 | contents[dst_idx + 1] = srcp[1]; | 
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| 448 | } | 
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| 449 | dst_idx += 2; | 
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| 450 | srcp += 2; | 
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| 451 | } | 
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| 452 | } | 
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| 453 | EDATA (abfd, otr->esdid - 1).pc = dst_idx; | 
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| 454 |  | 
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| 455 | if (!contents && need_contents) | 
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| 456 | esdid->contents = (unsigned char *) bfd_alloc (abfd, esdid->section->_raw_size); | 
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| 457 |  | 
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| 458 | } | 
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| 459 |  | 
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| 460 | static boolean | 
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| 461 | versados_scan (abfd) | 
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| 462 | bfd *abfd; | 
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| 463 | { | 
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| 464 | int loop = 1; | 
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| 465 | int i; | 
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| 466 | int j; | 
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| 467 | int nsecs = 0; | 
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| 468 |  | 
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| 469 | VDATA (abfd)->stringlen = 0; | 
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| 470 | VDATA (abfd)->nrefs = 0; | 
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| 471 | VDATA (abfd)->ndefs = 0; | 
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| 472 | VDATA (abfd)->ref_idx = 0; | 
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| 473 | VDATA (abfd)->def_idx = 0; | 
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| 474 | VDATA (abfd)->pass_2_done = 0; | 
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| 475 |  | 
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| 476 | while (loop) | 
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| 477 | { | 
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| 478 | union ext_any any; | 
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| 479 | if (!get_record (abfd, &any)) | 
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| 480 | return true; | 
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| 481 | switch (any.header.type) | 
|---|
| 482 | { | 
|---|
| 483 | case VHEADER: | 
|---|
| 484 | break; | 
|---|
| 485 | case VEND: | 
|---|
| 486 | loop = 0; | 
|---|
| 487 | break; | 
|---|
| 488 | case VESTDEF: | 
|---|
| 489 | process_esd (abfd, &any.esd, 1); | 
|---|
| 490 | break; | 
|---|
| 491 | case VOTR: | 
|---|
| 492 | process_otr (abfd, &any.otr, 1); | 
|---|
| 493 | break; | 
|---|
| 494 | } | 
|---|
| 495 | } | 
|---|
| 496 |  | 
|---|
| 497 | /* Now allocate space for the relocs and sections */ | 
|---|
| 498 |  | 
|---|
| 499 | VDATA (abfd)->nrefs = VDATA (abfd)->ref_idx; | 
|---|
| 500 | VDATA (abfd)->ndefs = VDATA (abfd)->def_idx; | 
|---|
| 501 | VDATA (abfd)->ref_idx = 0; | 
|---|
| 502 | VDATA (abfd)->def_idx = 0; | 
|---|
| 503 |  | 
|---|
| 504 | abfd->symcount = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs; | 
|---|
| 505 |  | 
|---|
| 506 | for (i = 0; i < 16; i++) | 
|---|
| 507 | { | 
|---|
| 508 | struct esdid *esdid = &EDATA (abfd, i); | 
|---|
| 509 | if (esdid->section) | 
|---|
| 510 | { | 
|---|
| 511 | esdid->section->relocation | 
|---|
| 512 | = (arelent *) bfd_alloc (abfd, sizeof (arelent) * esdid->relocs); | 
|---|
| 513 |  | 
|---|
| 514 | esdid->pc = 0; | 
|---|
| 515 |  | 
|---|
| 516 | if (esdid->contents) | 
|---|
| 517 | esdid->section->flags |= SEC_HAS_CONTENTS | SEC_LOAD; | 
|---|
| 518 |  | 
|---|
| 519 | esdid->section->reloc_count = esdid->relocs; | 
|---|
| 520 | if (esdid->relocs) | 
|---|
| 521 | esdid->section->flags |= SEC_RELOC; | 
|---|
| 522 |  | 
|---|
| 523 | esdid->relocs = 0; | 
|---|
| 524 |  | 
|---|
| 525 | /* Add an entry into the symbol table for it */ | 
|---|
| 526 | nsecs++; | 
|---|
| 527 | VDATA (abfd)->stringlen += strlen (esdid->section->name) + 1; | 
|---|
| 528 | } | 
|---|
| 529 | } | 
|---|
| 530 |  | 
|---|
| 531 | abfd->symcount += nsecs; | 
|---|
| 532 |  | 
|---|
| 533 | VDATA (abfd)->symbols = (asymbol *) bfd_alloc (abfd, | 
|---|
| 534 | sizeof (asymbol) * (abfd->symcount)); | 
|---|
| 535 |  | 
|---|
| 536 | VDATA (abfd)->strings = bfd_alloc (abfd, VDATA (abfd)->stringlen); | 
|---|
| 537 |  | 
|---|
| 538 | if ((VDATA (abfd)->symbols == NULL && abfd->symcount > 0) | 
|---|
| 539 | || (VDATA (abfd)->strings == NULL && VDATA (abfd)->stringlen > 0)) | 
|---|
| 540 | return false; | 
|---|
| 541 |  | 
|---|
| 542 | /* Actually fill in the section symbols, | 
|---|
| 543 | we stick them at the end of the table */ | 
|---|
| 544 |  | 
|---|
| 545 | for (j = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs, i = 0; i < 16; i++) | 
|---|
| 546 | { | 
|---|
| 547 | struct esdid *esdid = &EDATA (abfd, i); | 
|---|
| 548 | asection *sec = esdid->section; | 
|---|
| 549 | if (sec) | 
|---|
| 550 | { | 
|---|
| 551 | asymbol *s = VDATA (abfd)->symbols + j; | 
|---|
| 552 | s->name = new_symbol_string (abfd, sec->name); | 
|---|
| 553 | s->section = sec; | 
|---|
| 554 | s->flags = BSF_LOCAL; | 
|---|
| 555 | s->value = 0; | 
|---|
| 556 | s->the_bfd = abfd; | 
|---|
| 557 | j++; | 
|---|
| 558 | } | 
|---|
| 559 | } | 
|---|
| 560 | if (abfd->symcount) | 
|---|
| 561 | abfd->flags |= HAS_SYMS; | 
|---|
| 562 |  | 
|---|
| 563 | /* Set this to nsecs - since we've already planted the section | 
|---|
| 564 | symbols */ | 
|---|
| 565 | VDATA (abfd)->nsecsyms = nsecs; | 
|---|
| 566 |  | 
|---|
| 567 | VDATA (abfd)->ref_idx = 0; | 
|---|
| 568 |  | 
|---|
| 569 | return 1; | 
|---|
| 570 | } | 
|---|
| 571 |  | 
|---|
| 572 | /* Check whether an existing file is a versados  file.  */ | 
|---|
| 573 |  | 
|---|
| 574 | static const bfd_target * | 
|---|
| 575 | versados_object_p (abfd) | 
|---|
| 576 | bfd *abfd; | 
|---|
| 577 | { | 
|---|
| 578 | struct ext_vheader ext; | 
|---|
| 579 | unsigned char len; | 
|---|
| 580 |  | 
|---|
| 581 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | 
|---|
| 582 | return NULL; | 
|---|
| 583 |  | 
|---|
| 584 | if (bfd_read (&len, 1, 1, abfd) != 1) | 
|---|
| 585 | { | 
|---|
| 586 | if (bfd_get_error () != bfd_error_system_call) | 
|---|
| 587 | bfd_set_error (bfd_error_wrong_format); | 
|---|
| 588 | return NULL; | 
|---|
| 589 | } | 
|---|
| 590 |  | 
|---|
| 591 | if (bfd_read (&ext.type, 1, len, abfd) != len) | 
|---|
| 592 | { | 
|---|
| 593 | if (bfd_get_error () != bfd_error_system_call) | 
|---|
| 594 | bfd_set_error (bfd_error_wrong_format); | 
|---|
| 595 | return NULL; | 
|---|
| 596 | } | 
|---|
| 597 |  | 
|---|
| 598 | /* We guess that the language field will never be larger than 10. | 
|---|
| 599 | In sample files, it is always either 0 or 1.  Checking for this | 
|---|
| 600 | prevents confusion with Intel Hex files.  */ | 
|---|
| 601 | if (ext.type != VHEADER | 
|---|
| 602 | || ext.lang > 10) | 
|---|
| 603 | { | 
|---|
| 604 | bfd_set_error (bfd_error_wrong_format); | 
|---|
| 605 | return NULL; | 
|---|
| 606 | } | 
|---|
| 607 |  | 
|---|
| 608 | /* OK, looks like a record, build the tdata and read in.  */ | 
|---|
| 609 |  | 
|---|
| 610 | if (!versados_mkobject (abfd) | 
|---|
| 611 | || !versados_scan (abfd)) | 
|---|
| 612 | return NULL; | 
|---|
| 613 |  | 
|---|
| 614 | return abfd->xvec; | 
|---|
| 615 | } | 
|---|
| 616 |  | 
|---|
| 617 | static boolean | 
|---|
| 618 | versados_pass_2 (abfd) | 
|---|
| 619 | bfd *abfd; | 
|---|
| 620 | { | 
|---|
| 621 | union ext_any any; | 
|---|
| 622 |  | 
|---|
| 623 | if (VDATA (abfd)->pass_2_done) | 
|---|
| 624 | return 1; | 
|---|
| 625 |  | 
|---|
| 626 | if (bfd_seek (abfd, 0, SEEK_SET) != 0) | 
|---|
| 627 | return 0; | 
|---|
| 628 |  | 
|---|
| 629 | VDATA (abfd)->es_done = ES_BASE; | 
|---|
| 630 |  | 
|---|
| 631 | /* read records till we get to where we want to be */ | 
|---|
| 632 |  | 
|---|
| 633 | while (1) | 
|---|
| 634 | { | 
|---|
| 635 | get_record (abfd, &any); | 
|---|
| 636 | switch (any.header.type) | 
|---|
| 637 | { | 
|---|
| 638 | case VEND: | 
|---|
| 639 | VDATA (abfd)->pass_2_done = 1; | 
|---|
| 640 | return 1; | 
|---|
| 641 | case VESTDEF: | 
|---|
| 642 | process_esd (abfd, &any.esd, 2); | 
|---|
| 643 | break; | 
|---|
| 644 | case VOTR: | 
|---|
| 645 | process_otr (abfd, &any.otr, 2); | 
|---|
| 646 | break; | 
|---|
| 647 | } | 
|---|
| 648 | } | 
|---|
| 649 | } | 
|---|
| 650 |  | 
|---|
| 651 | static boolean | 
|---|
| 652 | versados_get_section_contents (abfd, section, location, offset, count) | 
|---|
| 653 | bfd *abfd; | 
|---|
| 654 | asection *section; | 
|---|
| 655 | PTR location; | 
|---|
| 656 | file_ptr offset; | 
|---|
| 657 | bfd_size_type count; | 
|---|
| 658 | { | 
|---|
| 659 | if (!versados_pass_2 (abfd)) | 
|---|
| 660 | return false; | 
|---|
| 661 |  | 
|---|
| 662 | memcpy (location, | 
|---|
| 663 | EDATA (abfd, section->target_index).contents + offset, | 
|---|
| 664 | (size_t) count); | 
|---|
| 665 |  | 
|---|
| 666 | return true; | 
|---|
| 667 | } | 
|---|
| 668 |  | 
|---|
| 669 | #define versados_get_section_contents_in_window \ | 
|---|
| 670 | _bfd_generic_get_section_contents_in_window | 
|---|
| 671 |  | 
|---|
| 672 | static boolean | 
|---|
| 673 | versados_set_section_contents (abfd, section, location, offset, bytes_to_do) | 
|---|
| 674 | bfd *abfd ATTRIBUTE_UNUSED; | 
|---|
| 675 | sec_ptr section ATTRIBUTE_UNUSED; | 
|---|
| 676 | PTR location ATTRIBUTE_UNUSED; | 
|---|
| 677 | file_ptr offset ATTRIBUTE_UNUSED; | 
|---|
| 678 | bfd_size_type bytes_to_do ATTRIBUTE_UNUSED; | 
|---|
| 679 | { | 
|---|
| 680 | return false; | 
|---|
| 681 | } | 
|---|
| 682 |  | 
|---|
| 683 | static int | 
|---|
| 684 | versados_sizeof_headers (abfd, exec) | 
|---|
| 685 | bfd *abfd ATTRIBUTE_UNUSED; | 
|---|
| 686 | boolean exec ATTRIBUTE_UNUSED; | 
|---|
| 687 | { | 
|---|
| 688 | return 0; | 
|---|
| 689 | } | 
|---|
| 690 |  | 
|---|
| 691 | static asymbol * | 
|---|
| 692 | versados_make_empty_symbol (abfd) | 
|---|
| 693 | bfd *abfd; | 
|---|
| 694 | { | 
|---|
| 695 | asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol)); | 
|---|
| 696 | if (new) | 
|---|
| 697 | new->the_bfd = abfd; | 
|---|
| 698 | return new; | 
|---|
| 699 | } | 
|---|
| 700 |  | 
|---|
| 701 | /* Return the amount of memory needed to read the symbol table.  */ | 
|---|
| 702 |  | 
|---|
| 703 | static long | 
|---|
| 704 | versados_get_symtab_upper_bound (abfd) | 
|---|
| 705 | bfd *abfd; | 
|---|
| 706 | { | 
|---|
| 707 | return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *); | 
|---|
| 708 | } | 
|---|
| 709 |  | 
|---|
| 710 | /* Return the symbol table.  */ | 
|---|
| 711 |  | 
|---|
| 712 | static long | 
|---|
| 713 | versados_get_symtab (abfd, alocation) | 
|---|
| 714 | bfd *abfd; | 
|---|
| 715 | asymbol **alocation; | 
|---|
| 716 | { | 
|---|
| 717 | unsigned int symcount = bfd_get_symcount (abfd); | 
|---|
| 718 | unsigned int i; | 
|---|
| 719 | asymbol *s; | 
|---|
| 720 |  | 
|---|
| 721 | versados_pass_2 (abfd); | 
|---|
| 722 |  | 
|---|
| 723 | for (i = 0, s = VDATA (abfd)->symbols; | 
|---|
| 724 | i < symcount; | 
|---|
| 725 | s++, i++) | 
|---|
| 726 | { | 
|---|
| 727 | *alocation++ = s; | 
|---|
| 728 | } | 
|---|
| 729 |  | 
|---|
| 730 | *alocation = NULL; | 
|---|
| 731 |  | 
|---|
| 732 | return symcount; | 
|---|
| 733 | } | 
|---|
| 734 |  | 
|---|
| 735 | void | 
|---|
| 736 | versados_get_symbol_info (ignore_abfd, symbol, ret) | 
|---|
| 737 | bfd *ignore_abfd ATTRIBUTE_UNUSED; | 
|---|
| 738 | asymbol *symbol; | 
|---|
| 739 | symbol_info *ret; | 
|---|
| 740 | { | 
|---|
| 741 | bfd_symbol_info (symbol, ret); | 
|---|
| 742 | } | 
|---|
| 743 |  | 
|---|
| 744 | void | 
|---|
| 745 | versados_print_symbol (ignore_abfd, afile, symbol, how) | 
|---|
| 746 | bfd *ignore_abfd ATTRIBUTE_UNUSED; | 
|---|
| 747 | PTR afile; | 
|---|
| 748 | asymbol *symbol; | 
|---|
| 749 | bfd_print_symbol_type how; | 
|---|
| 750 | { | 
|---|
| 751 | FILE *file = (FILE *) afile; | 
|---|
| 752 | switch (how) | 
|---|
| 753 | { | 
|---|
| 754 | case bfd_print_symbol_name: | 
|---|
| 755 | fprintf (file, "%s", symbol->name); | 
|---|
| 756 | break; | 
|---|
| 757 | default: | 
|---|
| 758 | bfd_print_symbol_vandf ((PTR) file, symbol); | 
|---|
| 759 | fprintf (file, " %-5s %s", | 
|---|
| 760 | symbol->section->name, | 
|---|
| 761 | symbol->name); | 
|---|
| 762 |  | 
|---|
| 763 | } | 
|---|
| 764 | } | 
|---|
| 765 |  | 
|---|
| 766 | long | 
|---|
| 767 | versados_get_reloc_upper_bound (abfd, asect) | 
|---|
| 768 | bfd *abfd ATTRIBUTE_UNUSED; | 
|---|
| 769 | sec_ptr asect; | 
|---|
| 770 | { | 
|---|
| 771 | return (asect->reloc_count + 1) * sizeof (arelent *); | 
|---|
| 772 | } | 
|---|
| 773 |  | 
|---|
| 774 | long | 
|---|
| 775 | versados_canonicalize_reloc (abfd, section, relptr, symbols) | 
|---|
| 776 | bfd *abfd; | 
|---|
| 777 | sec_ptr section; | 
|---|
| 778 | arelent **relptr; | 
|---|
| 779 | asymbol **symbols; | 
|---|
| 780 | { | 
|---|
| 781 | unsigned int count; | 
|---|
| 782 | arelent *src; | 
|---|
| 783 |  | 
|---|
| 784 | versados_pass_2 (abfd); | 
|---|
| 785 | src = section->relocation; | 
|---|
| 786 | if (!EDATA (abfd, section->target_index).donerel) | 
|---|
| 787 | { | 
|---|
| 788 | EDATA (abfd, section->target_index).donerel = 1; | 
|---|
| 789 | /* translate from indexes to symptr ptrs */ | 
|---|
| 790 | for (count = 0; count < section->reloc_count; count++) | 
|---|
| 791 | { | 
|---|
| 792 | int esdid = (int) src[count].sym_ptr_ptr; | 
|---|
| 793 |  | 
|---|
| 794 | if (esdid == 0) | 
|---|
| 795 | { | 
|---|
| 796 | src[count].sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | 
|---|
| 797 | } | 
|---|
| 798 | else if (esdid < ES_BASE)     /* Section relative thing */ | 
|---|
| 799 | { | 
|---|
| 800 | struct esdid *e = &EDATA (abfd, esdid - 1); | 
|---|
| 801 | if (!section) | 
|---|
| 802 | { | 
|---|
| 803 | /** relocation relative to section which was | 
|---|
| 804 | never declared ! */ | 
|---|
| 805 | } | 
|---|
| 806 | src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr; | 
|---|
| 807 | } | 
|---|
| 808 | else | 
|---|
| 809 | { | 
|---|
| 810 | src[count].sym_ptr_ptr = symbols + esdid - ES_BASE; | 
|---|
| 811 | } | 
|---|
| 812 |  | 
|---|
| 813 | } | 
|---|
| 814 | } | 
|---|
| 815 |  | 
|---|
| 816 | for (count = 0; count < section->reloc_count; count++) | 
|---|
| 817 | { | 
|---|
| 818 | *relptr++ = src++; | 
|---|
| 819 | } | 
|---|
| 820 | *relptr = 0; | 
|---|
| 821 | return section->reloc_count; | 
|---|
| 822 | } | 
|---|
| 823 |  | 
|---|
| 824 | #define versados_close_and_cleanup _bfd_generic_close_and_cleanup | 
|---|
| 825 | #define versados_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | 
|---|
| 826 | #define versados_new_section_hook _bfd_generic_new_section_hook | 
|---|
| 827 |  | 
|---|
| 828 | #define versados_bfd_is_local_label_name bfd_generic_is_local_label_name | 
|---|
| 829 | #define versados_get_lineno _bfd_nosymbols_get_lineno | 
|---|
| 830 | #define versados_find_nearest_line _bfd_nosymbols_find_nearest_line | 
|---|
| 831 | #define versados_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol | 
|---|
| 832 | #define versados_read_minisymbols _bfd_generic_read_minisymbols | 
|---|
| 833 | #define versados_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | 
|---|
| 834 |  | 
|---|
| 835 | #define versados_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | 
|---|
| 836 |  | 
|---|
| 837 | #define versados_set_arch_mach bfd_default_set_arch_mach | 
|---|
| 838 |  | 
|---|
| 839 | #define versados_bfd_get_relocated_section_contents \ | 
|---|
| 840 | bfd_generic_get_relocated_section_contents | 
|---|
| 841 | #define versados_bfd_relax_section bfd_generic_relax_section | 
|---|
| 842 | #define versados_bfd_gc_sections bfd_generic_gc_sections | 
|---|
| 843 | #define versados_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | 
|---|
| 844 | #define versados_bfd_link_add_symbols _bfd_generic_link_add_symbols | 
|---|
| 845 | #define versados_bfd_final_link _bfd_generic_final_link | 
|---|
| 846 | #define versados_bfd_link_split_section _bfd_generic_link_split_section | 
|---|
| 847 |  | 
|---|
| 848 | const bfd_target versados_vec = | 
|---|
| 849 | { | 
|---|
| 850 | "versados",                   /* name */ | 
|---|
| 851 | bfd_target_versados_flavour, | 
|---|
| 852 | BFD_ENDIAN_BIG,               /* target byte order */ | 
|---|
| 853 | BFD_ENDIAN_BIG,               /* target headers byte order */ | 
|---|
| 854 | (HAS_RELOC | EXEC_P |         /* object flags */ | 
|---|
| 855 | HAS_LINENO | HAS_DEBUG | | 
|---|
| 856 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | 
|---|
| 857 | (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | 
|---|
| 858 | | SEC_ALLOC | SEC_LOAD | SEC_RELOC),         /* section flags */ | 
|---|
| 859 | 0,                            /* leading underscore */ | 
|---|
| 860 | ' ',                          /* ar_pad_char */ | 
|---|
| 861 | 16,                           /* ar_max_namelen */ | 
|---|
| 862 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | 
|---|
| 863 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | 
|---|
| 864 | bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* data */ | 
|---|
| 865 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | 
|---|
| 866 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | 
|---|
| 867 | bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* hdrs */ | 
|---|
| 868 |  | 
|---|
| 869 | { | 
|---|
| 870 | _bfd_dummy_target, | 
|---|
| 871 | versados_object_p,          /* bfd_check_format */ | 
|---|
| 872 | _bfd_dummy_target, | 
|---|
| 873 | _bfd_dummy_target, | 
|---|
| 874 | }, | 
|---|
| 875 | { | 
|---|
| 876 | bfd_false, | 
|---|
| 877 | versados_mkobject, | 
|---|
| 878 | _bfd_generic_mkarchive, | 
|---|
| 879 | bfd_false, | 
|---|
| 880 | }, | 
|---|
| 881 | {                             /* bfd_write_contents */ | 
|---|
| 882 | bfd_false, | 
|---|
| 883 | bfd_false, | 
|---|
| 884 | _bfd_write_archive_contents, | 
|---|
| 885 | bfd_false, | 
|---|
| 886 | }, | 
|---|
| 887 |  | 
|---|
| 888 | BFD_JUMP_TABLE_GENERIC (versados), | 
|---|
| 889 | BFD_JUMP_TABLE_COPY (_bfd_generic), | 
|---|
| 890 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | 
|---|
| 891 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | 
|---|
| 892 | BFD_JUMP_TABLE_SYMBOLS (versados), | 
|---|
| 893 | BFD_JUMP_TABLE_RELOCS (versados), | 
|---|
| 894 | BFD_JUMP_TABLE_WRITE (versados), | 
|---|
| 895 | BFD_JUMP_TABLE_LINK (versados), | 
|---|
| 896 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | 
|---|
| 897 |  | 
|---|
| 898 | NULL, | 
|---|
| 899 |  | 
|---|
| 900 | (PTR) 0 | 
|---|
| 901 | }; | 
|---|