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Rev | Author | Line No. | Line |
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5197 | serge | 1 | /* BFD back-end for Intel Hex objects. |
6324 | serge | 2 | Copyright (C) 1995-2015 Free Software Foundation, Inc. |
5197 | serge | 3 | Written by Ian Lance Taylor of Cygnus Support |
4 | |||
5 | This file is part of BFD, the Binary File Descriptor library. |
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6 | |||
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 | |||
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 | |||
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 | |||
22 | |||
23 | /* This is what Intel Hex files look like: |
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24 | |||
25 | 1. INTEL FORMATS |
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26 | |||
27 | A. Intel 1 |
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28 | |||
29 | 16-bit address-field format, for files 64k bytes in length or less. |
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30 | |||
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 | |||
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 | |||
51 | B. INTEL 2 |
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52 | |||
53 | MCS-86 format, using a 20-bit address for files larger than 64K bytes. |
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54 | |||
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 | |||
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 | |||
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 | |||
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 | |||
90 | Another document reports these additional types: |
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91 | |||
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 | |||
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 | |||
110 | The MRI compiler uses this, which is a repeat of type 5: |
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111 | |||
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 | |||
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 | |||
128 | /* The number of bytes we put on one line during output. */ |
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129 | |||
130 | #define CHUNK 16 |
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131 | |||
132 | /* Macros for converting between hex and binary. */ |
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133 | |||
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 | |||
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 | |||
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 | |||
150 | /* The ihex tdata information. */ |
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151 | |||
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 | |||
158 | /* Initialize by filling in the hex conversion array. */ |
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159 | |||
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 | |||
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 | |||
172 | /* Create an ihex object. */ |
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173 | |||
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 | |||
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 | |||
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 | |||
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 | |||
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 | |||
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 | |||
204 | return (int) (c & 0xff); |
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205 | } |
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206 | |||
207 | /* Report a problem in an Intel Hex file. */ |
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208 | |||
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 | |||
221 | if (! ISPRINT (c)) |
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6324 | serge | 222 | sprintf (buf, "\\%03o", (unsigned int) c & 0xff); |
5197 | serge | 223 | else |
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 | |||
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 | |||
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 | |||
250 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
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251 | goto error_return; |
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252 | |||
253 | abfd->start_address = 0; |
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254 | |||
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 | |||
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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6324 | serge | 279 | unsigned char hdr[8]; |
5197 | serge | 280 | unsigned int i; |
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 | |||
287 | /* This is a data record. */ |
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288 | pos = bfd_tell (abfd) - 1; |
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289 | |||
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 | |||
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 | |||
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 | |||
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 | |||
317 | if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars) |
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318 | goto error_return; |
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319 | |||
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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6324 | serge | 324 | ihex_bad_byte (abfd, lineno, buf[i], error); |
5197 | serge | 325 | goto error_return; |
326 | } |
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327 | } |
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328 | |||
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 | |||
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 | |||
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 | |||
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 | |||
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 | |||
397 | segbase = HEX4 (buf) << 4; |
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398 | |||
399 | sec = NULL; |
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400 | |||
401 | break; |
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402 | |||
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 | |||
414 | abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4); |
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415 | |||
416 | sec = NULL; |
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417 | |||
418 | break; |
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419 | |||
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 | |||
431 | extbase = HEX4 (buf) << 16; |
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432 | |||
433 | sec = NULL; |
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434 | |||
435 | break; |
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436 | |||
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 | |||
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 | |||
453 | sec = NULL; |
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454 | |||
455 | break; |
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456 | |||
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 | } |
||
466 | |||
467 | if (error) |
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468 | goto error_return; |
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469 | |||
470 | if (buf != NULL) |
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471 | free (buf); |
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472 | |||
473 | return TRUE; |
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474 | |||
475 | error_return: |
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476 | if (buf != NULL) |
||
477 | free (buf); |
||
478 | return FALSE; |
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479 | } |
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480 | |||
481 | /* Try to recognize an Intel Hex file. */ |
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482 | |||
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; |
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489 | unsigned int type; |
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490 | |||
491 | ihex_init (); |
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492 | |||
493 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
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494 | return NULL; |
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495 | if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9) |
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496 | { |
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497 | if (bfd_get_error () == bfd_error_file_truncated) |
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498 | bfd_set_error (bfd_error_wrong_format); |
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499 | return NULL; |
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500 | } |
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501 | |||
502 | if (b[0] != ':') |
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503 | { |
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504 | bfd_set_error (bfd_error_wrong_format); |
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505 | return NULL; |
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506 | } |
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507 | |||
508 | for (i = 1; i < 9; i++) |
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509 | { |
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510 | if (! ISHEX (b[i])) |
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511 | { |
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512 | bfd_set_error (bfd_error_wrong_format); |
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513 | return NULL; |
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514 | } |
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515 | } |
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516 | |||
517 | type = HEX2 (b + 7); |
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518 | if (type > 5) |
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519 | { |
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520 | bfd_set_error (bfd_error_wrong_format); |
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521 | return NULL; |
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522 | } |
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523 | |||
524 | /* OK, it looks like it really is an Intel Hex file. */ |
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525 | tdata_save = abfd->tdata.any; |
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526 | if (! ihex_mkobject (abfd) || ! ihex_scan (abfd)) |
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527 | { |
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528 | if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL) |
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529 | bfd_release (abfd, abfd->tdata.any); |
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530 | abfd->tdata.any = tdata_save; |
||
531 | return NULL; |
||
532 | } |
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533 | |||
534 | return abfd->xvec; |
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535 | } |
||
536 | |||
537 | /* Read the contents of a section in an Intel Hex file. */ |
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538 | |||
539 | static bfd_boolean |
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540 | ihex_read_section (bfd *abfd, asection *section, bfd_byte *contents) |
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541 | { |
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542 | int c; |
||
543 | bfd_byte *p; |
||
544 | bfd_byte *buf = NULL; |
||
545 | size_t bufsize; |
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546 | bfd_boolean error; |
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547 | |||
548 | if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0) |
||
549 | goto error_return; |
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550 | |||
551 | p = contents; |
||
552 | bufsize = 0; |
||
553 | error = FALSE; |
||
554 | while ((c = ihex_get_byte (abfd, &error)) != EOF) |
||
555 | { |
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6324 | serge | 556 | unsigned char hdr[8]; |
5197 | serge | 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 |
||
6324 | serge | 921 | #define ihex_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string |
5197 | serge | 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 |
||
6324 | serge | 926 | #define ihex_find_line _bfd_nosymbols_find_line |
5197 | serge | 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 \ |
||
944 | _bfd_generic_copy_link_hash_symbol_type |
||
945 | #define ihex_bfd_final_link _bfd_generic_final_link |
||
946 | #define ihex_bfd_link_split_section _bfd_generic_link_split_section |
||
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 | };=>=>>>>>>><>><>><>><>><>>>>><>><> |