1 | /* BFD back-end for Intel Hex objects.
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2 | Copyright (C) 1995-2016 Free Software Foundation, Inc.
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3 | Written by Ian Lance Taylor of Cygnus Support <ian@cygnus.com>.
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4 |
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5 | This file is part of BFD, the Binary File Descriptor library.
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6 |
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7 | This program is free software; you can redistribute it and/or modify
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8 | it under the terms of the GNU General Public License as published by
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9 | the Free Software Foundation; either version 3 of the License, or
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10 | (at your option) any later version.
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11 |
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12 | This program is distributed in the hope that it will be useful,
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | GNU General Public License for more details.
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16 |
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17 | You should have received a copy of the GNU General Public License
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18 | along with this program; if not, write to the Free Software
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19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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20 | MA 02110-1301, USA. */
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21 |
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22 |
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23 | /* This is what Intel Hex files look like:
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24 |
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25 | 1. INTEL FORMATS
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26 |
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27 | A. Intel 1
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28 |
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29 | 16-bit address-field format, for files 64k bytes in length or less.
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30 |
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31 | DATA RECORD
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32 | Byte 1 Header = colon(:)
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33 | 2..3 The number of data bytes in hex notation
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34 | 4..5 High byte of the record load address
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35 | 6..7 Low byte of the record load address
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36 | 8..9 Record type, must be "00"
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37 | 10..x Data bytes in hex notation:
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38 | x = (number of bytes - 1) * 2 + 11
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39 | x+1..x+2 Checksum in hex notation
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40 | x+3..x+4 Carriage return, line feed
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41 |
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42 | END RECORD
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43 | Byte 1 Header = colon (:)
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44 | 2..3 The byte count, must be "00"
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45 | 4..7 Transfer-address (usually "0000")
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46 | the jump-to address, execution start address
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47 | 8..9 Record type, must be "01"
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48 | 10..11 Checksum, in hex notation
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49 | 12..13 Carriage return, line feed
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50 |
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51 | B. INTEL 2
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52 |
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53 | MCS-86 format, using a 20-bit address for files larger than 64K bytes.
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54 |
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55 | DATA RECORD
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56 | Byte 1 Header = colon (:)
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57 | 2..3 The byte count of this record, hex notation
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58 | 4..5 High byte of the record load address
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59 | 6..7 Low byte of the record load address
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60 | 8..9 Record type, must be "00"
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61 | 10..x The data bytes in hex notation:
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62 | x = (number of data bytes - 1) * 2 + 11
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63 | x+1..x+2 Checksum in hex notation
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64 | x+3..x+4 Carriage return, line feed
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65 |
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66 | EXTENDED ADDRESS RECORD
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67 | Byte 1 Header = colon(:)
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68 | 2..3 The byte count, must be "02"
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69 | 4..7 Load address, must be "0000"
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70 | 8..9 Record type, must be "02"
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71 | 10..11 High byte of the offset address
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72 | 12..13 Low byte of the offset address
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73 | 14..15 Checksum in hex notation
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74 | 16..17 Carriage return, line feed
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75 |
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76 | The checksums are the two's complement of the 8-bit sum
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77 | without carry of the byte count, offset address, and the
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78 | record type.
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79 |
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80 | START ADDRESS RECORD
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81 | Byte 1 Header = colon (:)
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82 | 2..3 The byte count, must be "04"
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83 | 4..7 Load address, must be "0000"
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84 | 8..9 Record type, must be "03"
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85 | 10..13 8086 CS value
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86 | 14..17 8086 IP value
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87 | 18..19 Checksum in hex notation
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88 | 20..21 Carriage return, line feed
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89 |
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90 | Another document reports these additional types:
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91 |
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92 | EXTENDED LINEAR ADDRESS RECORD
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93 | Byte 1 Header = colon (:)
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94 | 2..3 The byte count, must be "02"
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95 | 4..7 Load address, must be "0000"
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96 | 8..9 Record type, must be "04"
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97 | 10..13 Upper 16 bits of address of subsequent records
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98 | 14..15 Checksum in hex notation
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99 | 16..17 Carriage return, line feed
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100 |
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101 | START LINEAR ADDRESS RECORD
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102 | Byte 1 Header = colon (:)
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103 | 2..3 The byte count, must be "02"
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104 | 4..7 Load address, must be "0000"
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105 | 8..9 Record type, must be "05"
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106 | 10..13 Upper 16 bits of start address
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107 | 14..15 Checksum in hex notation
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108 | 16..17 Carriage return, line feed
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109 |
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110 | The MRI compiler uses this, which is a repeat of type 5:
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111 |
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112 | EXTENDED START RECORD
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113 | Byte 1 Header = colon (:)
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114 | 2..3 The byte count, must be "04"
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115 | 4..7 Load address, must be "0000"
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116 | 8..9 Record type, must be "05"
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117 | 10..13 Upper 16 bits of start address
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118 | 14..17 Lower 16 bits of start address
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119 | 18..19 Checksum in hex notation
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120 | 20..21 Carriage return, line feed. */
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121 |
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122 | #include "sysdep.h"
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123 | #include "bfd.h"
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124 | #include "libbfd.h"
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125 | #include "libiberty.h"
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126 | #include "safe-ctype.h"
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127 |
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128 | /* The number of bytes we put on one line during output. */
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129 |
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130 | #define CHUNK 16
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131 |
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132 | /* Macros for converting between hex and binary. */
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133 |
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134 | #define NIBBLE(x) (hex_value (x))
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135 | #define HEX2(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1]))
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136 | #define HEX4(buffer) ((HEX2 (buffer) << 8) + HEX2 ((buffer) + 2))
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137 | #define ISHEX(x) (hex_p (x))
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138 |
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139 | /* When we write out an ihex value, the values can not be output as
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140 | they are seen. Instead, we hold them in memory in this structure. */
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141 |
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142 | struct ihex_data_list
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143 | {
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144 | struct ihex_data_list *next;
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145 | bfd_byte *data;
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146 | bfd_vma where;
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147 | bfd_size_type size;
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148 | };
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149 |
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150 | /* The ihex tdata information. */
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151 |
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152 | struct ihex_data_struct
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153 | {
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154 | struct ihex_data_list *head;
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155 | struct ihex_data_list *tail;
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156 | };
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157 |
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158 | /* Initialize by filling in the hex conversion array. */
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159 |
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160 | static void
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161 | ihex_init (void)
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162 | {
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163 | static bfd_boolean inited;
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164 |
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165 | if (! inited)
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166 | {
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167 | inited = TRUE;
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168 | hex_init ();
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169 | }
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170 | }
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171 |
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172 | /* Create an ihex object. */
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173 |
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174 | static bfd_boolean
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175 | ihex_mkobject (bfd *abfd)
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176 | {
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177 | struct ihex_data_struct *tdata;
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178 |
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179 | tdata = (struct ihex_data_struct *) bfd_alloc (abfd, sizeof (* tdata));
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180 | if (tdata == NULL)
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181 | return FALSE;
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182 |
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183 | abfd->tdata.ihex_data = tdata;
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184 | tdata->head = NULL;
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185 | tdata->tail = NULL;
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186 | return TRUE;
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187 | }
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188 |
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189 | /* Read a byte from a BFD. Set *ERRORPTR if an error occurred.
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190 | Return EOF on error or end of file. */
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191 |
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192 | static INLINE int
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193 | ihex_get_byte (bfd *abfd, bfd_boolean *errorptr)
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194 | {
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195 | bfd_byte c;
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196 |
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197 | if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1)
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198 | {
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199 | if (bfd_get_error () != bfd_error_file_truncated)
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200 | *errorptr = TRUE;
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201 | return EOF;
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202 | }
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203 |
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204 | return (int) (c & 0xff);
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205 | }
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206 |
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207 | /* Report a problem in an Intel Hex file. */
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208 |
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209 | static void
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210 | ihex_bad_byte (bfd *abfd, unsigned int lineno, int c, bfd_boolean error)
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211 | {
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212 | if (c == EOF)
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213 | {
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214 | if (! error)
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215 | bfd_set_error (bfd_error_file_truncated);
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216 | }
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217 | else
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218 | {
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219 | char buf[10];
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220 |
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221 | if (! ISPRINT (c))
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222 | sprintf (buf, "\\%03o", (unsigned int) c & 0xff);
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223 | else
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224 | {
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225 | buf[0] = c;
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226 | buf[1] = '\0';
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227 | }
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228 | (*_bfd_error_handler)
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229 | (_("%B:%d: unexpected character `%s' in Intel Hex file"),
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230 | abfd, lineno, buf);
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231 | bfd_set_error (bfd_error_bad_value);
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232 | }
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233 | }
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234 |
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235 | /* Read an Intel hex file and turn it into sections. We create a new
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236 | section for each contiguous set of bytes. */
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237 |
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238 | static bfd_boolean
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239 | ihex_scan (bfd *abfd)
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240 | {
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241 | bfd_vma segbase;
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242 | bfd_vma extbase;
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243 | asection *sec;
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244 | unsigned int lineno;
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245 | bfd_boolean error;
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246 | bfd_byte *buf = NULL;
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247 | size_t bufsize;
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248 | int c;
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249 |
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250 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
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251 | goto error_return;
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252 |
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253 | abfd->start_address = 0;
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254 |
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255 | segbase = 0;
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256 | extbase = 0;
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257 | sec = NULL;
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258 | lineno = 1;
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259 | error = FALSE;
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260 | bufsize = 0;
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261 |
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262 | while ((c = ihex_get_byte (abfd, &error)) != EOF)
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263 | {
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264 | if (c == '\r')
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265 | continue;
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266 | else if (c == '\n')
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267 | {
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268 | ++lineno;
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269 | continue;
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270 | }
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271 | else if (c != ':')
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272 | {
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273 | ihex_bad_byte (abfd, lineno, c, error);
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274 | goto error_return;
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275 | }
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276 | else
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277 | {
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278 | file_ptr pos;
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279 | unsigned char hdr[8];
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280 | unsigned int i;
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281 | unsigned int len;
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282 | bfd_vma addr;
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283 | unsigned int type;
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284 | unsigned int chars;
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285 | unsigned int chksum;
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286 |
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287 | /* This is a data record. */
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288 | pos = bfd_tell (abfd) - 1;
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289 |
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290 | /* Read the header bytes. */
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291 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8)
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292 | goto error_return;
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293 |
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294 | for (i = 0; i < 8; i++)
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295 | {
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296 | if (! ISHEX (hdr[i]))
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297 | {
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298 | ihex_bad_byte (abfd, lineno, hdr[i], error);
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299 | goto error_return;
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300 | }
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301 | }
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302 |
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303 | len = HEX2 (hdr);
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304 | addr = HEX4 (hdr + 2);
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305 | type = HEX2 (hdr + 6);
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306 |
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307 | /* Read the data bytes. */
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308 | chars = len * 2 + 2;
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309 | if (chars >= bufsize)
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310 | {
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311 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) chars);
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312 | if (buf == NULL)
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313 | goto error_return;
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314 | bufsize = chars;
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315 | }
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316 |
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317 | if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars)
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318 | goto error_return;
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319 |
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320 | for (i = 0; i < chars; i++)
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321 | {
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322 | if (! ISHEX (buf[i]))
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323 | {
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324 | ihex_bad_byte (abfd, lineno, buf[i], error);
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325 | goto error_return;
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326 | }
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327 | }
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328 |
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329 | /* Check the checksum. */
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330 | chksum = len + addr + (addr >> 8) + type;
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331 | for (i = 0; i < len; i++)
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332 | chksum += HEX2 (buf + 2 * i);
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333 | if (((- chksum) & 0xff) != (unsigned int) HEX2 (buf + 2 * i))
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334 | {
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335 | (*_bfd_error_handler)
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336 | (_("%B:%u: bad checksum in Intel Hex file (expected %u, found %u)"),
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337 | abfd, lineno,
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338 | (- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i));
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339 | bfd_set_error (bfd_error_bad_value);
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340 | goto error_return;
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341 | }
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342 |
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343 | switch (type)
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344 | {
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345 | case 0:
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346 | /* This is a data record. */
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347 | if (sec != NULL
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348 | && sec->vma + sec->size == extbase + segbase + addr)
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349 | {
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350 | /* This data goes at the end of the section we are
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351 | currently building. */
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352 | sec->size += len;
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353 | }
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354 | else if (len > 0)
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355 | {
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356 | char secbuf[20];
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357 | char *secname;
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358 | bfd_size_type amt;
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359 | flagword flags;
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360 |
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361 | sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1);
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362 | amt = strlen (secbuf) + 1;
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363 | secname = (char *) bfd_alloc (abfd, amt);
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364 | if (secname == NULL)
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365 | goto error_return;
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366 | strcpy (secname, secbuf);
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367 | flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
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368 | sec = bfd_make_section_with_flags (abfd, secname, flags);
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369 | if (sec == NULL)
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370 | goto error_return;
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371 | sec->vma = extbase + segbase + addr;
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372 | sec->lma = extbase + segbase + addr;
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373 | sec->size = len;
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374 | sec->filepos = pos;
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375 | }
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376 | break;
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377 |
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378 | case 1:
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379 | /* An end record. */
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380 | if (abfd->start_address == 0)
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381 | abfd->start_address = addr;
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382 | if (buf != NULL)
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383 | free (buf);
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384 | return TRUE;
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385 |
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386 | case 2:
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387 | /* An extended address record. */
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388 | if (len != 2)
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389 | {
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390 | (*_bfd_error_handler)
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391 | (_("%B:%u: bad extended address record length in Intel Hex file"),
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392 | abfd, lineno);
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393 | bfd_set_error (bfd_error_bad_value);
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394 | goto error_return;
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395 | }
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396 |
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397 | segbase = HEX4 (buf) << 4;
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398 |
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399 | sec = NULL;
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400 |
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401 | break;
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402 |
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403 | case 3:
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404 | /* An extended start address record. */
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405 | if (len != 4)
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406 | {
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407 | (*_bfd_error_handler)
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408 | (_("%B:%u: bad extended start address length in Intel Hex file"),
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409 | abfd, lineno);
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410 | bfd_set_error (bfd_error_bad_value);
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411 | goto error_return;
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412 | }
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413 |
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414 | abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4);
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415 |
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416 | sec = NULL;
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417 |
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418 | break;
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419 |
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420 | case 4:
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421 | /* An extended linear address record. */
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422 | if (len != 2)
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423 | {
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424 | (*_bfd_error_handler)
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425 | (_("%B:%u: bad extended linear address record length in Intel Hex file"),
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426 | abfd, lineno);
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427 | bfd_set_error (bfd_error_bad_value);
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428 | goto error_return;
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429 | }
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430 |
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431 | extbase = HEX4 (buf) << 16;
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432 |
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433 | sec = NULL;
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434 |
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435 | break;
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436 |
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437 | case 5:
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438 | /* An extended linear start address record. */
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439 | if (len != 2 && len != 4)
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440 | {
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441 | (*_bfd_error_handler)
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442 | (_("%B:%u: bad extended linear start address length in Intel Hex file"),
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443 | abfd, lineno);
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444 | bfd_set_error (bfd_error_bad_value);
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445 | goto error_return;
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446 | }
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447 |
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448 | if (len == 2)
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449 | abfd->start_address += HEX4 (buf) << 16;
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450 | else
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451 | abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4);
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452 |
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453 | sec = NULL;
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454 |
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455 | break;
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456 |
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457 | default:
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458 | (*_bfd_error_handler)
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459 | (_("%B:%u: unrecognized ihex type %u in Intel Hex file"),
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460 | abfd, lineno, type);
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461 | bfd_set_error (bfd_error_bad_value);
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462 | goto error_return;
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463 | }
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464 | }
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465 | }
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466 |
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467 | if (error)
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468 | goto error_return;
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469 |
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470 | if (buf != NULL)
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471 | free (buf);
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472 |
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473 | return TRUE;
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474 |
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475 | error_return:
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476 | if (buf != NULL)
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477 | free (buf);
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478 | return FALSE;
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479 | }
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480 |
|
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481 | /* Try to recognize an Intel Hex file. */
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482 |
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483 | static const bfd_target *
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484 | ihex_object_p (bfd *abfd)
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485 | {
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486 | void * tdata_save;
|
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487 | bfd_byte b[9];
|
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488 | unsigned int i;
|
---|
489 | unsigned int type;
|
---|
490 |
|
---|
491 | ihex_init ();
|
---|
492 |
|
---|
493 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
|
---|
494 | return NULL;
|
---|
495 | if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9)
|
---|
496 | {
|
---|
497 | if (bfd_get_error () == bfd_error_file_truncated)
|
---|
498 | bfd_set_error (bfd_error_wrong_format);
|
---|
499 | return NULL;
|
---|
500 | }
|
---|
501 |
|
---|
502 | if (b[0] != ':')
|
---|
503 | {
|
---|
504 | bfd_set_error (bfd_error_wrong_format);
|
---|
505 | return NULL;
|
---|
506 | }
|
---|
507 |
|
---|
508 | for (i = 1; i < 9; i++)
|
---|
509 | {
|
---|
510 | if (! ISHEX (b[i]))
|
---|
511 | {
|
---|
512 | bfd_set_error (bfd_error_wrong_format);
|
---|
513 | return NULL;
|
---|
514 | }
|
---|
515 | }
|
---|
516 |
|
---|
517 | type = HEX2 (b + 7);
|
---|
518 | if (type > 5)
|
---|
519 | {
|
---|
520 | bfd_set_error (bfd_error_wrong_format);
|
---|
521 | return NULL;
|
---|
522 | }
|
---|
523 |
|
---|
524 | /* OK, it looks like it really is an Intel Hex file. */
|
---|
525 | tdata_save = abfd->tdata.any;
|
---|
526 | if (! ihex_mkobject (abfd) || ! ihex_scan (abfd))
|
---|
527 | {
|
---|
528 | if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL)
|
---|
529 | bfd_release (abfd, abfd->tdata.any);
|
---|
530 | abfd->tdata.any = tdata_save;
|
---|
531 | return NULL;
|
---|
532 | }
|
---|
533 |
|
---|
534 | return abfd->xvec;
|
---|
535 | }
|
---|
536 |
|
---|
537 | /* Read the contents of a section in an Intel Hex file. */
|
---|
538 |
|
---|
539 | static bfd_boolean
|
---|
540 | ihex_read_section (bfd *abfd, asection *section, bfd_byte *contents)
|
---|
541 | {
|
---|
542 | int c;
|
---|
543 | bfd_byte *p;
|
---|
544 | bfd_byte *buf = NULL;
|
---|
545 | size_t bufsize;
|
---|
546 | bfd_boolean error;
|
---|
547 |
|
---|
548 | if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0)
|
---|
549 | goto error_return;
|
---|
550 |
|
---|
551 | p = contents;
|
---|
552 | bufsize = 0;
|
---|
553 | error = FALSE;
|
---|
554 | while ((c = ihex_get_byte (abfd, &error)) != EOF)
|
---|
555 | {
|
---|
556 | unsigned char hdr[8];
|
---|
557 | unsigned int len;
|
---|
558 | unsigned int type;
|
---|
559 | unsigned int i;
|
---|
560 |
|
---|
561 | if (c == '\r' || c == '\n')
|
---|
562 | continue;
|
---|
563 |
|
---|
564 | /* This is called after ihex_scan has succeeded, so we ought to
|
---|
565 | know the exact format. */
|
---|
566 | BFD_ASSERT (c == ':');
|
---|
567 |
|
---|
568 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8)
|
---|
569 | goto error_return;
|
---|
570 |
|
---|
571 | len = HEX2 (hdr);
|
---|
572 | type = HEX2 (hdr + 6);
|
---|
573 |
|
---|
574 | /* We should only see type 0 records here. */
|
---|
575 | if (type != 0)
|
---|
576 | {
|
---|
577 | (*_bfd_error_handler)
|
---|
578 | (_("%B: internal error in ihex_read_section"), abfd);
|
---|
579 | bfd_set_error (bfd_error_bad_value);
|
---|
580 | goto error_return;
|
---|
581 | }
|
---|
582 |
|
---|
583 | if (len * 2 > bufsize)
|
---|
584 | {
|
---|
585 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) len * 2);
|
---|
586 | if (buf == NULL)
|
---|
587 | goto error_return;
|
---|
588 | bufsize = len * 2;
|
---|
589 | }
|
---|
590 |
|
---|
591 | if (bfd_bread (buf, (bfd_size_type) len * 2, abfd) != len * 2)
|
---|
592 | goto error_return;
|
---|
593 |
|
---|
594 | for (i = 0; i < len; i++)
|
---|
595 | *p++ = HEX2 (buf + 2 * i);
|
---|
596 | if ((bfd_size_type) (p - contents) >= section->size)
|
---|
597 | {
|
---|
598 | /* We've read everything in the section. */
|
---|
599 | if (buf != NULL)
|
---|
600 | free (buf);
|
---|
601 | return TRUE;
|
---|
602 | }
|
---|
603 |
|
---|
604 | /* Skip the checksum. */
|
---|
605 | if (bfd_bread (buf, (bfd_size_type) 2, abfd) != 2)
|
---|
606 | goto error_return;
|
---|
607 | }
|
---|
608 |
|
---|
609 | if ((bfd_size_type) (p - contents) < section->size)
|
---|
610 | {
|
---|
611 | (*_bfd_error_handler)
|
---|
612 | (_("%B: bad section length in ihex_read_section"), abfd);
|
---|
613 | bfd_set_error (bfd_error_bad_value);
|
---|
614 | goto error_return;
|
---|
615 | }
|
---|
616 |
|
---|
617 | if (buf != NULL)
|
---|
618 | free (buf);
|
---|
619 |
|
---|
620 | return TRUE;
|
---|
621 |
|
---|
622 | error_return:
|
---|
623 | if (buf != NULL)
|
---|
624 | free (buf);
|
---|
625 | return FALSE;
|
---|
626 | }
|
---|
627 |
|
---|
628 | /* Get the contents of a section in an Intel Hex file. */
|
---|
629 |
|
---|
630 | static bfd_boolean
|
---|
631 | ihex_get_section_contents (bfd *abfd,
|
---|
632 | asection *section,
|
---|
633 | void * location,
|
---|
634 | file_ptr offset,
|
---|
635 | bfd_size_type count)
|
---|
636 | {
|
---|
637 | if (section->used_by_bfd == NULL)
|
---|
638 | {
|
---|
639 | section->used_by_bfd = bfd_alloc (abfd, section->size);
|
---|
640 | if (section->used_by_bfd == NULL)
|
---|
641 | return FALSE;
|
---|
642 | if (! ihex_read_section (abfd, section,
|
---|
643 | (bfd_byte *) section->used_by_bfd))
|
---|
644 | return FALSE;
|
---|
645 | }
|
---|
646 |
|
---|
647 | memcpy (location, (bfd_byte *) section->used_by_bfd + offset,
|
---|
648 | (size_t) count);
|
---|
649 |
|
---|
650 | return TRUE;
|
---|
651 | }
|
---|
652 |
|
---|
653 | /* Set the contents of a section in an Intel Hex file. */
|
---|
654 |
|
---|
655 | static bfd_boolean
|
---|
656 | ihex_set_section_contents (bfd *abfd,
|
---|
657 | asection *section,
|
---|
658 | const void * location,
|
---|
659 | file_ptr offset,
|
---|
660 | bfd_size_type count)
|
---|
661 | {
|
---|
662 | struct ihex_data_list *n;
|
---|
663 | bfd_byte *data;
|
---|
664 | struct ihex_data_struct *tdata;
|
---|
665 |
|
---|
666 | if (count == 0
|
---|
667 | || (section->flags & SEC_ALLOC) == 0
|
---|
668 | || (section->flags & SEC_LOAD) == 0)
|
---|
669 | return TRUE;
|
---|
670 |
|
---|
671 | n = (struct ihex_data_list *) bfd_alloc (abfd, sizeof (* n));
|
---|
672 | if (n == NULL)
|
---|
673 | return FALSE;
|
---|
674 |
|
---|
675 | data = (bfd_byte *) bfd_alloc (abfd, count);
|
---|
676 | if (data == NULL)
|
---|
677 | return FALSE;
|
---|
678 | memcpy (data, location, (size_t) count);
|
---|
679 |
|
---|
680 | n->data = data;
|
---|
681 | n->where = section->lma + offset;
|
---|
682 | n->size = count;
|
---|
683 |
|
---|
684 | /* Sort the records by address. Optimize for the common case of
|
---|
685 | adding a record to the end of the list. */
|
---|
686 | tdata = abfd->tdata.ihex_data;
|
---|
687 | if (tdata->tail != NULL
|
---|
688 | && n->where >= tdata->tail->where)
|
---|
689 | {
|
---|
690 | tdata->tail->next = n;
|
---|
691 | n->next = NULL;
|
---|
692 | tdata->tail = n;
|
---|
693 | }
|
---|
694 | else
|
---|
695 | {
|
---|
696 | struct ihex_data_list **pp;
|
---|
697 |
|
---|
698 | for (pp = &tdata->head;
|
---|
699 | *pp != NULL && (*pp)->where < n->where;
|
---|
700 | pp = &(*pp)->next)
|
---|
701 | ;
|
---|
702 | n->next = *pp;
|
---|
703 | *pp = n;
|
---|
704 | if (n->next == NULL)
|
---|
705 | tdata->tail = n;
|
---|
706 | }
|
---|
707 |
|
---|
708 | return TRUE;
|
---|
709 | }
|
---|
710 |
|
---|
711 | /* Write a record out to an Intel Hex file. */
|
---|
712 |
|
---|
713 | static bfd_boolean
|
---|
714 | ihex_write_record (bfd *abfd,
|
---|
715 | size_t count,
|
---|
716 | unsigned int addr,
|
---|
717 | unsigned int type,
|
---|
718 | bfd_byte *data)
|
---|
719 | {
|
---|
720 | static const char digs[] = "0123456789ABCDEF";
|
---|
721 | char buf[9 + CHUNK * 2 + 4];
|
---|
722 | char *p;
|
---|
723 | unsigned int chksum;
|
---|
724 | unsigned int i;
|
---|
725 | size_t total;
|
---|
726 |
|
---|
727 | #define TOHEX(buf, v) \
|
---|
728 | ((buf)[0] = digs[((v) >> 4) & 0xf], (buf)[1] = digs[(v) & 0xf])
|
---|
729 |
|
---|
730 | buf[0] = ':';
|
---|
731 | TOHEX (buf + 1, count);
|
---|
732 | TOHEX (buf + 3, (addr >> 8) & 0xff);
|
---|
733 | TOHEX (buf + 5, addr & 0xff);
|
---|
734 | TOHEX (buf + 7, type);
|
---|
735 |
|
---|
736 | chksum = count + addr + (addr >> 8) + type;
|
---|
737 |
|
---|
738 | for (i = 0, p = buf + 9; i < count; i++, p += 2, data++)
|
---|
739 | {
|
---|
740 | TOHEX (p, *data);
|
---|
741 | chksum += *data;
|
---|
742 | }
|
---|
743 |
|
---|
744 | TOHEX (p, (- chksum) & 0xff);
|
---|
745 | p[2] = '\r';
|
---|
746 | p[3] = '\n';
|
---|
747 |
|
---|
748 | total = 9 + count * 2 + 4;
|
---|
749 | if (bfd_bwrite (buf, (bfd_size_type) total, abfd) != total)
|
---|
750 | return FALSE;
|
---|
751 |
|
---|
752 | return TRUE;
|
---|
753 | }
|
---|
754 |
|
---|
755 | /* Write out an Intel Hex file. */
|
---|
756 |
|
---|
757 | static bfd_boolean
|
---|
758 | ihex_write_object_contents (bfd *abfd)
|
---|
759 | {
|
---|
760 | bfd_vma segbase;
|
---|
761 | bfd_vma extbase;
|
---|
762 | struct ihex_data_list *l;
|
---|
763 |
|
---|
764 | segbase = 0;
|
---|
765 | extbase = 0;
|
---|
766 | for (l = abfd->tdata.ihex_data->head; l != NULL; l = l->next)
|
---|
767 | {
|
---|
768 | bfd_vma where;
|
---|
769 | bfd_byte *p;
|
---|
770 | bfd_size_type count;
|
---|
771 |
|
---|
772 | where = l->where;
|
---|
773 | p = l->data;
|
---|
774 | count = l->size;
|
---|
775 |
|
---|
776 | while (count > 0)
|
---|
777 | {
|
---|
778 | size_t now;
|
---|
779 | unsigned int rec_addr;
|
---|
780 |
|
---|
781 | now = count;
|
---|
782 | if (count > CHUNK)
|
---|
783 | now = CHUNK;
|
---|
784 |
|
---|
785 | if (where > segbase + extbase + 0xffff)
|
---|
786 | {
|
---|
787 | bfd_byte addr[2];
|
---|
788 |
|
---|
789 | /* We need a new base address. */
|
---|
790 | if (where <= 0xfffff)
|
---|
791 | {
|
---|
792 | /* The addresses should be sorted. */
|
---|
793 | BFD_ASSERT (extbase == 0);
|
---|
794 |
|
---|
795 | segbase = where & 0xf0000;
|
---|
796 | addr[0] = (bfd_byte)(segbase >> 12) & 0xff;
|
---|
797 | addr[1] = (bfd_byte)(segbase >> 4) & 0xff;
|
---|
798 | if (! ihex_write_record (abfd, 2, 0, 2, addr))
|
---|
799 | return FALSE;
|
---|
800 | }
|
---|
801 | else
|
---|
802 | {
|
---|
803 | /* The extended address record and the extended
|
---|
804 | linear address record are combined, at least by
|
---|
805 | some readers. We need an extended linear address
|
---|
806 | record here, so if we've already written out an
|
---|
807 | extended address record, zero it out to avoid
|
---|
808 | confusion. */
|
---|
809 | if (segbase != 0)
|
---|
810 | {
|
---|
811 | addr[0] = 0;
|
---|
812 | addr[1] = 0;
|
---|
813 | if (! ihex_write_record (abfd, 2, 0, 2, addr))
|
---|
814 | return FALSE;
|
---|
815 | segbase = 0;
|
---|
816 | }
|
---|
817 |
|
---|
818 | extbase = where & 0xffff0000;
|
---|
819 | if (where > extbase + 0xffff)
|
---|
820 | {
|
---|
821 | char buf[20];
|
---|
822 |
|
---|
823 | sprintf_vma (buf, where);
|
---|
824 | (*_bfd_error_handler)
|
---|
825 | (_("%s: address 0x%s out of range for Intel Hex file"),
|
---|
826 | bfd_get_filename (abfd), buf);
|
---|
827 | bfd_set_error (bfd_error_bad_value);
|
---|
828 | return FALSE;
|
---|
829 | }
|
---|
830 | addr[0] = (bfd_byte)(extbase >> 24) & 0xff;
|
---|
831 | addr[1] = (bfd_byte)(extbase >> 16) & 0xff;
|
---|
832 | if (! ihex_write_record (abfd, 2, 0, 4, addr))
|
---|
833 | return FALSE;
|
---|
834 | }
|
---|
835 | }
|
---|
836 |
|
---|
837 | rec_addr = where - (extbase + segbase);
|
---|
838 |
|
---|
839 | /* Output records shouldn't cross 64K boundaries. */
|
---|
840 | if (rec_addr + now > 0xffff)
|
---|
841 | now = 0x10000 - rec_addr;
|
---|
842 |
|
---|
843 | if (! ihex_write_record (abfd, now, rec_addr, 0, p))
|
---|
844 | return FALSE;
|
---|
845 |
|
---|
846 | where += now;
|
---|
847 | p += now;
|
---|
848 | count -= now;
|
---|
849 | }
|
---|
850 | }
|
---|
851 |
|
---|
852 | if (abfd->start_address != 0)
|
---|
853 | {
|
---|
854 | bfd_vma start;
|
---|
855 | bfd_byte startbuf[4];
|
---|
856 |
|
---|
857 | start = abfd->start_address;
|
---|
858 |
|
---|
859 | if (start <= 0xfffff)
|
---|
860 | {
|
---|
861 | startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff;
|
---|
862 | startbuf[1] = 0;
|
---|
863 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff;
|
---|
864 | startbuf[3] = (bfd_byte)start & 0xff;
|
---|
865 | if (! ihex_write_record (abfd, 4, 0, 3, startbuf))
|
---|
866 | return FALSE;
|
---|
867 | }
|
---|
868 | else
|
---|
869 | {
|
---|
870 | startbuf[0] = (bfd_byte)(start >> 24) & 0xff;
|
---|
871 | startbuf[1] = (bfd_byte)(start >> 16) & 0xff;
|
---|
872 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff;
|
---|
873 | startbuf[3] = (bfd_byte)start & 0xff;
|
---|
874 | if (! ihex_write_record (abfd, 4, 0, 5, startbuf))
|
---|
875 | return FALSE;
|
---|
876 | }
|
---|
877 | }
|
---|
878 |
|
---|
879 | if (! ihex_write_record (abfd, 0, 0, 1, NULL))
|
---|
880 | return FALSE;
|
---|
881 |
|
---|
882 | return TRUE;
|
---|
883 | }
|
---|
884 |
|
---|
885 | /* Set the architecture for the output file. The architecture is
|
---|
886 | irrelevant, so we ignore errors about unknown architectures. */
|
---|
887 |
|
---|
888 | static bfd_boolean
|
---|
889 | ihex_set_arch_mach (bfd *abfd,
|
---|
890 | enum bfd_architecture arch,
|
---|
891 | unsigned long mach)
|
---|
892 | {
|
---|
893 | if (! bfd_default_set_arch_mach (abfd, arch, mach))
|
---|
894 | {
|
---|
895 | if (arch != bfd_arch_unknown)
|
---|
896 | return FALSE;
|
---|
897 | }
|
---|
898 | return TRUE;
|
---|
899 | }
|
---|
900 |
|
---|
901 | /* Get the size of the headers, for the linker. */
|
---|
902 |
|
---|
903 | static int
|
---|
904 | ihex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
|
---|
905 | struct bfd_link_info *info ATTRIBUTE_UNUSED)
|
---|
906 | {
|
---|
907 | return 0;
|
---|
908 | }
|
---|
909 |
|
---|
910 | /* Some random definitions for the target vector. */
|
---|
911 |
|
---|
912 | #define ihex_close_and_cleanup _bfd_generic_close_and_cleanup
|
---|
913 | #define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
|
---|
914 | #define ihex_new_section_hook _bfd_generic_new_section_hook
|
---|
915 | #define ihex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
|
---|
916 | #define ihex_get_symtab_upper_bound bfd_0l
|
---|
917 | #define ihex_canonicalize_symtab ((long (*) (bfd *, asymbol **)) bfd_0l)
|
---|
918 | #define ihex_make_empty_symbol _bfd_generic_make_empty_symbol
|
---|
919 | #define ihex_print_symbol _bfd_nosymbols_print_symbol
|
---|
920 | #define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info
|
---|
921 | #define ihex_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string
|
---|
922 | #define ihex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
|
---|
923 | #define ihex_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
|
---|
924 | #define ihex_get_lineno _bfd_nosymbols_get_lineno
|
---|
925 | #define ihex_find_nearest_line _bfd_nosymbols_find_nearest_line
|
---|
926 | #define ihex_find_line _bfd_nosymbols_find_line
|
---|
927 | #define ihex_find_inliner_info _bfd_nosymbols_find_inliner_info
|
---|
928 | #define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
|
---|
929 | #define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols
|
---|
930 | #define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
|
---|
931 | #define ihex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
|
---|
932 | #define ihex_bfd_relax_section bfd_generic_relax_section
|
---|
933 | #define ihex_bfd_gc_sections bfd_generic_gc_sections
|
---|
934 | #define ihex_bfd_lookup_section_flags bfd_generic_lookup_section_flags
|
---|
935 | #define ihex_bfd_merge_sections bfd_generic_merge_sections
|
---|
936 | #define ihex_bfd_is_group_section bfd_generic_is_group_section
|
---|
937 | #define ihex_bfd_discard_group bfd_generic_discard_group
|
---|
938 | #define ihex_section_already_linked _bfd_generic_section_already_linked
|
---|
939 | #define ihex_bfd_define_common_symbol bfd_generic_define_common_symbol
|
---|
940 | #define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
|
---|
941 | #define ihex_bfd_link_add_symbols _bfd_generic_link_add_symbols
|
---|
942 | #define ihex_bfd_link_just_syms _bfd_generic_link_just_syms
|
---|
943 | #define ihex_bfd_copy_link_hash_symbol_type _bfd_generic_copy_link_hash_symbol_type
|
---|
944 | #define ihex_bfd_final_link _bfd_generic_final_link
|
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945 | #define ihex_bfd_link_split_section _bfd_generic_link_split_section
|
---|
946 | #define ihex_bfd_link_check_relocs _bfd_generic_link_check_relocs
|
---|
947 |
|
---|
948 | /* The Intel Hex target vector. */
|
---|
949 |
|
---|
950 | const bfd_target ihex_vec =
|
---|
951 | {
|
---|
952 | "ihex", /* Name. */
|
---|
953 | bfd_target_ihex_flavour,
|
---|
954 | BFD_ENDIAN_UNKNOWN, /* Target byte order. */
|
---|
955 | BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */
|
---|
956 | 0, /* Object flags. */
|
---|
957 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD), /* Section flags. */
|
---|
958 | 0, /* Leading underscore. */
|
---|
959 | ' ', /* AR_pad_char. */
|
---|
960 | 16, /* AR_max_namelen. */
|
---|
961 | 0, /* match priority. */
|
---|
962 | bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
---|
963 | bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
---|
964 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
|
---|
965 | bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
---|
966 | bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
---|
967 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
|
---|
968 |
|
---|
969 | {
|
---|
970 | _bfd_dummy_target,
|
---|
971 | ihex_object_p, /* bfd_check_format. */
|
---|
972 | _bfd_dummy_target,
|
---|
973 | _bfd_dummy_target,
|
---|
974 | },
|
---|
975 | {
|
---|
976 | bfd_false,
|
---|
977 | ihex_mkobject,
|
---|
978 | _bfd_generic_mkarchive,
|
---|
979 | bfd_false,
|
---|
980 | },
|
---|
981 | { /* bfd_write_contents. */
|
---|
982 | bfd_false,
|
---|
983 | ihex_write_object_contents,
|
---|
984 | _bfd_write_archive_contents,
|
---|
985 | bfd_false,
|
---|
986 | },
|
---|
987 |
|
---|
988 | BFD_JUMP_TABLE_GENERIC (ihex),
|
---|
989 | BFD_JUMP_TABLE_COPY (_bfd_generic),
|
---|
990 | BFD_JUMP_TABLE_CORE (_bfd_nocore),
|
---|
991 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
|
---|
992 | BFD_JUMP_TABLE_SYMBOLS (ihex),
|
---|
993 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
|
---|
994 | BFD_JUMP_TABLE_WRITE (ihex),
|
---|
995 | BFD_JUMP_TABLE_LINK (ihex),
|
---|
996 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
|
---|
997 |
|
---|
998 | NULL,
|
---|
999 |
|
---|
1000 | NULL
|
---|
1001 | };
|
---|