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5197 | serge | 1 | /* BFD back-end for Intel Hex objects. |
2 | Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
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3 | 2006, 2007, 2009, 2011 Free Software Foundation, Inc. |
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4 | Written by Ian Lance Taylor of Cygnus Support |
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5 | |||
6 | This file is part of BFD, the Binary File Descriptor library. |
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7 | |||
8 | This program is free software; you can redistribute it and/or modify |
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9 | it under the terms of the GNU General Public License as published by |
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10 | the Free Software Foundation; either version 3 of the License, or |
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11 | (at your option) any later version. |
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12 | |||
13 | This program is distributed in the hope that it will be useful, |
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14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | GNU General Public License for more details. |
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17 | |||
18 | You should have received a copy of the GNU General Public License |
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19 | along with this program; if not, write to the Free Software |
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20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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21 | MA 02110-1301, USA. */ |
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22 | |||
23 | |||
24 | /* This is what Intel Hex files look like: |
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25 | |||
26 | 1. INTEL FORMATS |
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27 | |||
28 | A. Intel 1 |
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29 | |||
30 | 16-bit address-field format, for files 64k bytes in length or less. |
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31 | |||
32 | DATA RECORD |
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33 | Byte 1 Header = colon(:) |
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34 | 2..3 The number of data bytes in hex notation |
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35 | 4..5 High byte of the record load address |
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36 | 6..7 Low byte of the record load address |
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37 | 8..9 Record type, must be "00" |
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38 | 10..x Data bytes in hex notation: |
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39 | x = (number of bytes - 1) * 2 + 11 |
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40 | x+1..x+2 Checksum in hex notation |
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41 | x+3..x+4 Carriage return, line feed |
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42 | |||
43 | END RECORD |
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44 | Byte 1 Header = colon (:) |
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45 | 2..3 The byte count, must be "00" |
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46 | 4..7 Transfer-address (usually "0000") |
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47 | the jump-to address, execution start address |
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48 | 8..9 Record type, must be "01" |
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49 | 10..11 Checksum, in hex notation |
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50 | 12..13 Carriage return, line feed |
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51 | |||
52 | B. INTEL 2 |
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53 | |||
54 | MCS-86 format, using a 20-bit address for files larger than 64K bytes. |
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55 | |||
56 | DATA RECORD |
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57 | Byte 1 Header = colon (:) |
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58 | 2..3 The byte count of this record, hex notation |
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59 | 4..5 High byte of the record load address |
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60 | 6..7 Low byte of the record load address |
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61 | 8..9 Record type, must be "00" |
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62 | 10..x The data bytes in hex notation: |
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63 | x = (number of data bytes - 1) * 2 + 11 |
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64 | x+1..x+2 Checksum in hex notation |
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65 | x+3..x+4 Carriage return, line feed |
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66 | |||
67 | EXTENDED ADDRESS RECORD |
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68 | Byte 1 Header = colon(:) |
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69 | 2..3 The byte count, must be "02" |
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70 | 4..7 Load address, must be "0000" |
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71 | 8..9 Record type, must be "02" |
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72 | 10..11 High byte of the offset address |
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73 | 12..13 Low byte of the offset address |
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74 | 14..15 Checksum in hex notation |
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75 | 16..17 Carriage return, line feed |
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76 | |||
77 | The checksums are the two's complement of the 8-bit sum |
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78 | without carry of the byte count, offset address, and the |
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79 | record type. |
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80 | |||
81 | START ADDRESS RECORD |
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82 | Byte 1 Header = colon (:) |
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83 | 2..3 The byte count, must be "04" |
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84 | 4..7 Load address, must be "0000" |
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85 | 8..9 Record type, must be "03" |
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86 | 10..13 8086 CS value |
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87 | 14..17 8086 IP value |
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88 | 18..19 Checksum in hex notation |
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89 | 20..21 Carriage return, line feed |
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90 | |||
91 | Another document reports these additional types: |
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92 | |||
93 | EXTENDED LINEAR ADDRESS RECORD |
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94 | Byte 1 Header = colon (:) |
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95 | 2..3 The byte count, must be "02" |
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96 | 4..7 Load address, must be "0000" |
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97 | 8..9 Record type, must be "04" |
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98 | 10..13 Upper 16 bits of address of subsequent records |
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99 | 14..15 Checksum in hex notation |
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100 | 16..17 Carriage return, line feed |
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101 | |||
102 | START LINEAR ADDRESS RECORD |
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103 | Byte 1 Header = colon (:) |
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104 | 2..3 The byte count, must be "02" |
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105 | 4..7 Load address, must be "0000" |
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106 | 8..9 Record type, must be "05" |
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107 | 10..13 Upper 16 bits of start address |
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108 | 14..15 Checksum in hex notation |
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109 | 16..17 Carriage return, line feed |
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110 | |||
111 | The MRI compiler uses this, which is a repeat of type 5: |
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112 | |||
113 | EXTENDED START RECORD |
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114 | Byte 1 Header = colon (:) |
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115 | 2..3 The byte count, must be "04" |
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116 | 4..7 Load address, must be "0000" |
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117 | 8..9 Record type, must be "05" |
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118 | 10..13 Upper 16 bits of start address |
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119 | 14..17 Lower 16 bits of start address |
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120 | 18..19 Checksum in hex notation |
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121 | 20..21 Carriage return, line feed. */ |
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122 | |||
123 | #include "sysdep.h" |
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124 | #include "bfd.h" |
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125 | #include "libbfd.h" |
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126 | #include "libiberty.h" |
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127 | #include "safe-ctype.h" |
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128 | |||
129 | /* The number of bytes we put on one line during output. */ |
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130 | |||
131 | #define CHUNK 16 |
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132 | |||
133 | /* Macros for converting between hex and binary. */ |
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134 | |||
135 | #define NIBBLE(x) (hex_value (x)) |
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136 | #define HEX2(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1])) |
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137 | #define HEX4(buffer) ((HEX2 (buffer) << 8) + HEX2 ((buffer) + 2)) |
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138 | #define ISHEX(x) (hex_p (x)) |
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139 | |||
140 | /* When we write out an ihex value, the values can not be output as |
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141 | they are seen. Instead, we hold them in memory in this structure. */ |
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142 | |||
143 | struct ihex_data_list |
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144 | { |
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145 | struct ihex_data_list *next; |
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146 | bfd_byte *data; |
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147 | bfd_vma where; |
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148 | bfd_size_type size; |
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149 | }; |
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150 | |||
151 | /* The ihex tdata information. */ |
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152 | |||
153 | struct ihex_data_struct |
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154 | { |
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155 | struct ihex_data_list *head; |
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156 | struct ihex_data_list *tail; |
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157 | }; |
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158 | |||
159 | /* Initialize by filling in the hex conversion array. */ |
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160 | |||
161 | static void |
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162 | ihex_init (void) |
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163 | { |
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164 | static bfd_boolean inited; |
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165 | |||
166 | if (! inited) |
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167 | { |
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168 | inited = TRUE; |
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169 | hex_init (); |
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170 | } |
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171 | } |
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172 | |||
173 | /* Create an ihex object. */ |
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174 | |||
175 | static bfd_boolean |
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176 | ihex_mkobject (bfd *abfd) |
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177 | { |
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178 | struct ihex_data_struct *tdata; |
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179 | |||
180 | tdata = (struct ihex_data_struct *) bfd_alloc (abfd, sizeof (* tdata)); |
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181 | if (tdata == NULL) |
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182 | return FALSE; |
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183 | |||
184 | abfd->tdata.ihex_data = tdata; |
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185 | tdata->head = NULL; |
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186 | tdata->tail = NULL; |
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187 | return TRUE; |
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188 | } |
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189 | |||
190 | /* Read a byte from a BFD. Set *ERRORPTR if an error occurred. |
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191 | Return EOF on error or end of file. */ |
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192 | |||
193 | static INLINE int |
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194 | ihex_get_byte (bfd *abfd, bfd_boolean *errorptr) |
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195 | { |
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196 | bfd_byte c; |
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197 | |||
198 | if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1) |
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199 | { |
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200 | if (bfd_get_error () != bfd_error_file_truncated) |
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201 | *errorptr = TRUE; |
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202 | return EOF; |
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203 | } |
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204 | |||
205 | return (int) (c & 0xff); |
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206 | } |
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207 | |||
208 | /* Report a problem in an Intel Hex file. */ |
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209 | |||
210 | static void |
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211 | ihex_bad_byte (bfd *abfd, unsigned int lineno, int c, bfd_boolean error) |
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212 | { |
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213 | if (c == EOF) |
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214 | { |
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215 | if (! error) |
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216 | bfd_set_error (bfd_error_file_truncated); |
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217 | } |
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218 | else |
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219 | { |
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220 | char buf[10]; |
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221 | |||
222 | if (! ISPRINT (c)) |
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223 | sprintf (buf, "\\%03o", (unsigned int) c); |
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224 | else |
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225 | { |
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226 | buf[0] = c; |
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227 | buf[1] = '\0'; |
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228 | } |
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229 | (*_bfd_error_handler) |
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230 | (_("%B:%d: unexpected character `%s' in Intel Hex file"), |
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231 | abfd, lineno, buf); |
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232 | bfd_set_error (bfd_error_bad_value); |
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233 | } |
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234 | } |
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235 | |||
236 | /* Read an Intel hex file and turn it into sections. We create a new |
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237 | section for each contiguous set of bytes. */ |
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238 | |||
239 | static bfd_boolean |
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240 | ihex_scan (bfd *abfd) |
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241 | { |
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242 | bfd_vma segbase; |
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243 | bfd_vma extbase; |
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244 | asection *sec; |
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245 | unsigned int lineno; |
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246 | bfd_boolean error; |
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247 | bfd_byte *buf = NULL; |
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248 | size_t bufsize; |
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249 | int c; |
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250 | |||
251 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
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252 | goto error_return; |
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253 | |||
254 | abfd->start_address = 0; |
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255 | |||
256 | segbase = 0; |
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257 | extbase = 0; |
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258 | sec = NULL; |
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259 | lineno = 1; |
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260 | error = FALSE; |
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261 | bufsize = 0; |
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262 | |||
263 | while ((c = ihex_get_byte (abfd, &error)) != EOF) |
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264 | { |
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265 | if (c == '\r') |
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266 | continue; |
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267 | else if (c == '\n') |
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268 | { |
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269 | ++lineno; |
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270 | continue; |
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271 | } |
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272 | else if (c != ':') |
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273 | { |
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274 | ihex_bad_byte (abfd, lineno, c, error); |
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275 | goto error_return; |
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276 | } |
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277 | else |
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278 | { |
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279 | file_ptr pos; |
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280 | char hdr[8]; |
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281 | unsigned int i; |
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282 | unsigned int len; |
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283 | bfd_vma addr; |
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284 | unsigned int type; |
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285 | unsigned int chars; |
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286 | unsigned int chksum; |
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287 | |||
288 | /* This is a data record. */ |
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289 | pos = bfd_tell (abfd) - 1; |
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290 | |||
291 | /* Read the header bytes. */ |
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292 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) |
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293 | goto error_return; |
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294 | |||
295 | for (i = 0; i < 8; i++) |
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296 | { |
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297 | if (! ISHEX (hdr[i])) |
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298 | { |
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299 | ihex_bad_byte (abfd, lineno, hdr[i], error); |
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300 | goto error_return; |
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301 | } |
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302 | } |
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303 | |||
304 | len = HEX2 (hdr); |
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305 | addr = HEX4 (hdr + 2); |
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306 | type = HEX2 (hdr + 6); |
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307 | |||
308 | /* Read the data bytes. */ |
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309 | chars = len * 2 + 2; |
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310 | if (chars >= bufsize) |
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311 | { |
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312 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) chars); |
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313 | if (buf == NULL) |
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314 | goto error_return; |
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315 | bufsize = chars; |
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316 | } |
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317 | |||
318 | if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars) |
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319 | goto error_return; |
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320 | |||
321 | for (i = 0; i < chars; i++) |
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322 | { |
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323 | if (! ISHEX (buf[i])) |
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324 | { |
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325 | ihex_bad_byte (abfd, lineno, hdr[i], error); |
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326 | goto error_return; |
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327 | } |
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328 | } |
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329 | |||
330 | /* Check the checksum. */ |
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331 | chksum = len + addr + (addr >> 8) + type; |
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332 | for (i = 0; i < len; i++) |
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333 | chksum += HEX2 (buf + 2 * i); |
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334 | if (((- chksum) & 0xff) != (unsigned int) HEX2 (buf + 2 * i)) |
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335 | { |
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336 | (*_bfd_error_handler) |
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337 | (_("%B:%u: bad checksum in Intel Hex file (expected %u, found %u)"), |
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338 | abfd, lineno, |
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339 | (- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i)); |
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340 | bfd_set_error (bfd_error_bad_value); |
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341 | goto error_return; |
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342 | } |
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343 | |||
344 | switch (type) |
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345 | { |
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346 | case 0: |
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347 | /* This is a data record. */ |
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348 | if (sec != NULL |
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349 | && sec->vma + sec->size == extbase + segbase + addr) |
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350 | { |
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351 | /* This data goes at the end of the section we are |
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352 | currently building. */ |
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353 | sec->size += len; |
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354 | } |
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355 | else if (len > 0) |
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356 | { |
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357 | char secbuf[20]; |
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358 | char *secname; |
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359 | bfd_size_type amt; |
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360 | flagword flags; |
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361 | |||
362 | sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1); |
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363 | amt = strlen (secbuf) + 1; |
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364 | secname = (char *) bfd_alloc (abfd, amt); |
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365 | if (secname == NULL) |
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366 | goto error_return; |
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367 | strcpy (secname, secbuf); |
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368 | flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC; |
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369 | sec = bfd_make_section_with_flags (abfd, secname, flags); |
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370 | if (sec == NULL) |
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371 | goto error_return; |
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372 | sec->vma = extbase + segbase + addr; |
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373 | sec->lma = extbase + segbase + addr; |
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374 | sec->size = len; |
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375 | sec->filepos = pos; |
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376 | } |
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377 | break; |
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378 | |||
379 | case 1: |
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380 | /* An end record. */ |
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381 | if (abfd->start_address == 0) |
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382 | abfd->start_address = addr; |
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383 | if (buf != NULL) |
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384 | free (buf); |
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385 | return TRUE; |
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386 | |||
387 | case 2: |
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388 | /* An extended address record. */ |
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389 | if (len != 2) |
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390 | { |
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391 | (*_bfd_error_handler) |
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392 | (_("%B:%u: bad extended address record length in Intel Hex file"), |
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393 | abfd, lineno); |
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394 | bfd_set_error (bfd_error_bad_value); |
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395 | goto error_return; |
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396 | } |
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397 | |||
398 | segbase = HEX4 (buf) << 4; |
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399 | |||
400 | sec = NULL; |
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401 | |||
402 | break; |
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403 | |||
404 | case 3: |
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405 | /* An extended start address record. */ |
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406 | if (len != 4) |
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407 | { |
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408 | (*_bfd_error_handler) |
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409 | (_("%B:%u: bad extended start address length in Intel Hex file"), |
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410 | abfd, lineno); |
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411 | bfd_set_error (bfd_error_bad_value); |
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412 | goto error_return; |
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413 | } |
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414 | |||
415 | abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4); |
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416 | |||
417 | sec = NULL; |
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418 | |||
419 | break; |
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420 | |||
421 | case 4: |
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422 | /* An extended linear address record. */ |
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423 | if (len != 2) |
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424 | { |
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425 | (*_bfd_error_handler) |
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426 | (_("%B:%u: bad extended linear address record length in Intel Hex file"), |
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427 | abfd, lineno); |
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428 | bfd_set_error (bfd_error_bad_value); |
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429 | goto error_return; |
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430 | } |
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431 | |||
432 | extbase = HEX4 (buf) << 16; |
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433 | |||
434 | sec = NULL; |
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435 | |||
436 | break; |
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437 | |||
438 | case 5: |
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439 | /* An extended linear start address record. */ |
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440 | if (len != 2 && len != 4) |
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441 | { |
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442 | (*_bfd_error_handler) |
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443 | (_("%B:%u: bad extended linear start address length in Intel Hex file"), |
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444 | abfd, lineno); |
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445 | bfd_set_error (bfd_error_bad_value); |
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446 | goto error_return; |
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447 | } |
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448 | |||
449 | if (len == 2) |
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450 | abfd->start_address += HEX4 (buf) << 16; |
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451 | else |
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452 | abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4); |
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453 | |||
454 | sec = NULL; |
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455 | |||
456 | break; |
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457 | |||
458 | default: |
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459 | (*_bfd_error_handler) |
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460 | (_("%B:%u: unrecognized ihex type %u in Intel Hex file"), |
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461 | abfd, lineno, type); |
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462 | bfd_set_error (bfd_error_bad_value); |
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463 | goto error_return; |
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464 | } |
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465 | } |
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466 | } |
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467 | |||
468 | if (error) |
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469 | goto error_return; |
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470 | |||
471 | if (buf != NULL) |
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472 | free (buf); |
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473 | |||
474 | return TRUE; |
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475 | |||
476 | error_return: |
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477 | if (buf != NULL) |
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478 | free (buf); |
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479 | return FALSE; |
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480 | } |
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481 | |||
482 | /* Try to recognize an Intel Hex file. */ |
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483 | |||
484 | static const bfd_target * |
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485 | ihex_object_p (bfd *abfd) |
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486 | { |
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487 | void * tdata_save; |
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488 | bfd_byte b[9]; |
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489 | unsigned int i; |
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490 | unsigned int type; |
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491 | |||
492 | ihex_init (); |
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493 | |||
494 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
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495 | return NULL; |
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496 | if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9) |
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497 | { |
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498 | if (bfd_get_error () == bfd_error_file_truncated) |
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499 | bfd_set_error (bfd_error_wrong_format); |
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500 | return NULL; |
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501 | } |
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502 | |||
503 | if (b[0] != ':') |
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504 | { |
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505 | bfd_set_error (bfd_error_wrong_format); |
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506 | return NULL; |
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507 | } |
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508 | |||
509 | for (i = 1; i < 9; i++) |
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510 | { |
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511 | if (! ISHEX (b[i])) |
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512 | { |
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513 | bfd_set_error (bfd_error_wrong_format); |
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514 | return NULL; |
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515 | } |
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516 | } |
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517 | |||
518 | type = HEX2 (b + 7); |
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519 | if (type > 5) |
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520 | { |
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521 | bfd_set_error (bfd_error_wrong_format); |
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522 | return NULL; |
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523 | } |
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524 | |||
525 | /* OK, it looks like it really is an Intel Hex file. */ |
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526 | tdata_save = abfd->tdata.any; |
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527 | if (! ihex_mkobject (abfd) || ! ihex_scan (abfd)) |
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528 | { |
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529 | if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL) |
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530 | bfd_release (abfd, abfd->tdata.any); |
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531 | abfd->tdata.any = tdata_save; |
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532 | return NULL; |
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533 | } |
||
534 | |||
535 | return abfd->xvec; |
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536 | } |
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537 | |||
538 | /* Read the contents of a section in an Intel Hex file. */ |
||
539 | |||
540 | static bfd_boolean |
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541 | ihex_read_section (bfd *abfd, asection *section, bfd_byte *contents) |
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542 | { |
||
543 | int c; |
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544 | bfd_byte *p; |
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545 | bfd_byte *buf = NULL; |
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546 | size_t bufsize; |
||
547 | bfd_boolean error; |
||
548 | |||
549 | if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0) |
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550 | goto error_return; |
||
551 | |||
552 | p = contents; |
||
553 | bufsize = 0; |
||
554 | error = FALSE; |
||
555 | while ((c = ihex_get_byte (abfd, &error)) != EOF) |
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556 | { |
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557 | char hdr[8]; |
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558 | unsigned int len; |
||
559 | unsigned int type; |
||
560 | unsigned int i; |
||
561 | |||
562 | if (c == '\r' || c == '\n') |
||
563 | continue; |
||
564 | |||
565 | /* This is called after ihex_scan has succeeded, so we ought to |
||
566 | know the exact format. */ |
||
567 | BFD_ASSERT (c == ':'); |
||
568 | |||
569 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) |
||
570 | goto error_return; |
||
571 | |||
572 | len = HEX2 (hdr); |
||
573 | type = HEX2 (hdr + 6); |
||
574 | |||
575 | /* We should only see type 0 records here. */ |
||
576 | if (type != 0) |
||
577 | { |
||
578 | (*_bfd_error_handler) |
||
579 | (_("%B: internal error in ihex_read_section"), abfd); |
||
580 | bfd_set_error (bfd_error_bad_value); |
||
581 | goto error_return; |
||
582 | } |
||
583 | |||
584 | if (len * 2 > bufsize) |
||
585 | { |
||
586 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) len * 2); |
||
587 | if (buf == NULL) |
||
588 | goto error_return; |
||
589 | bufsize = len * 2; |
||
590 | } |
||
591 | |||
592 | if (bfd_bread (buf, (bfd_size_type) len * 2, abfd) != len * 2) |
||
593 | goto error_return; |
||
594 | |||
595 | for (i = 0; i < len; i++) |
||
596 | *p++ = HEX2 (buf + 2 * i); |
||
597 | if ((bfd_size_type) (p - contents) >= section->size) |
||
598 | { |
||
599 | /* We've read everything in the section. */ |
||
600 | if (buf != NULL) |
||
601 | free (buf); |
||
602 | return TRUE; |
||
603 | } |
||
604 | |||
605 | /* Skip the checksum. */ |
||
606 | if (bfd_bread (buf, (bfd_size_type) 2, abfd) != 2) |
||
607 | goto error_return; |
||
608 | } |
||
609 | |||
610 | if ((bfd_size_type) (p - contents) < section->size) |
||
611 | { |
||
612 | (*_bfd_error_handler) |
||
613 | (_("%B: bad section length in ihex_read_section"), abfd); |
||
614 | bfd_set_error (bfd_error_bad_value); |
||
615 | goto error_return; |
||
616 | } |
||
617 | |||
618 | if (buf != NULL) |
||
619 | free (buf); |
||
620 | |||
621 | return TRUE; |
||
622 | |||
623 | error_return: |
||
624 | if (buf != NULL) |
||
625 | free (buf); |
||
626 | return FALSE; |
||
627 | } |
||
628 | |||
629 | /* Get the contents of a section in an Intel Hex file. */ |
||
630 | |||
631 | static bfd_boolean |
||
632 | ihex_get_section_contents (bfd *abfd, |
||
633 | asection *section, |
||
634 | void * location, |
||
635 | file_ptr offset, |
||
636 | bfd_size_type count) |
||
637 | { |
||
638 | if (section->used_by_bfd == NULL) |
||
639 | { |
||
640 | section->used_by_bfd = bfd_alloc (abfd, section->size); |
||
641 | if (section->used_by_bfd == NULL) |
||
642 | return FALSE; |
||
643 | if (! ihex_read_section (abfd, section, |
||
644 | (bfd_byte *) section->used_by_bfd)) |
||
645 | return FALSE; |
||
646 | } |
||
647 | |||
648 | memcpy (location, (bfd_byte *) section->used_by_bfd + offset, |
||
649 | (size_t) count); |
||
650 | |||
651 | return TRUE; |
||
652 | } |
||
653 | |||
654 | /* Set the contents of a section in an Intel Hex file. */ |
||
655 | |||
656 | static bfd_boolean |
||
657 | ihex_set_section_contents (bfd *abfd, |
||
658 | asection *section, |
||
659 | const void * location, |
||
660 | file_ptr offset, |
||
661 | bfd_size_type count) |
||
662 | { |
||
663 | struct ihex_data_list *n; |
||
664 | bfd_byte *data; |
||
665 | struct ihex_data_struct *tdata; |
||
666 | |||
667 | if (count == 0 |
||
668 | || (section->flags & SEC_ALLOC) == 0 |
||
669 | || (section->flags & SEC_LOAD) == 0) |
||
670 | return TRUE; |
||
671 | |||
672 | n = (struct ihex_data_list *) bfd_alloc (abfd, sizeof (* n)); |
||
673 | if (n == NULL) |
||
674 | return FALSE; |
||
675 | |||
676 | data = (bfd_byte *) bfd_alloc (abfd, count); |
||
677 | if (data == NULL) |
||
678 | return FALSE; |
||
679 | memcpy (data, location, (size_t) count); |
||
680 | |||
681 | n->data = data; |
||
682 | n->where = section->lma + offset; |
||
683 | n->size = count; |
||
684 | |||
685 | /* Sort the records by address. Optimize for the common case of |
||
686 | adding a record to the end of the list. */ |
||
687 | tdata = abfd->tdata.ihex_data; |
||
688 | if (tdata->tail != NULL |
||
689 | && n->where >= tdata->tail->where) |
||
690 | { |
||
691 | tdata->tail->next = n; |
||
692 | n->next = NULL; |
||
693 | tdata->tail = n; |
||
694 | } |
||
695 | else |
||
696 | { |
||
697 | struct ihex_data_list **pp; |
||
698 | |||
699 | for (pp = &tdata->head; |
||
700 | *pp != NULL && (*pp)->where < n->where; |
||
701 | pp = &(*pp)->next) |
||
702 | ; |
||
703 | n->next = *pp; |
||
704 | *pp = n; |
||
705 | if (n->next == NULL) |
||
706 | tdata->tail = n; |
||
707 | } |
||
708 | |||
709 | return TRUE; |
||
710 | } |
||
711 | |||
712 | /* Write a record out to an Intel Hex file. */ |
||
713 | |||
714 | static bfd_boolean |
||
715 | ihex_write_record (bfd *abfd, |
||
716 | size_t count, |
||
717 | unsigned int addr, |
||
718 | unsigned int type, |
||
719 | bfd_byte *data) |
||
720 | { |
||
721 | static const char digs[] = "0123456789ABCDEF"; |
||
722 | char buf[9 + CHUNK * 2 + 4]; |
||
723 | char *p; |
||
724 | unsigned int chksum; |
||
725 | unsigned int i; |
||
726 | size_t total; |
||
727 | |||
728 | #define TOHEX(buf, v) \ |
||
729 | ((buf)[0] = digs[((v) >> 4) & 0xf], (buf)[1] = digs[(v) & 0xf]) |
||
730 | |||
731 | buf[0] = ':'; |
||
732 | TOHEX (buf + 1, count); |
||
733 | TOHEX (buf + 3, (addr >> 8) & 0xff); |
||
734 | TOHEX (buf + 5, addr & 0xff); |
||
735 | TOHEX (buf + 7, type); |
||
736 | |||
737 | chksum = count + addr + (addr >> 8) + type; |
||
738 | |||
739 | for (i = 0, p = buf + 9; i < count; i++, p += 2, data++) |
||
740 | { |
||
741 | TOHEX (p, *data); |
||
742 | chksum += *data; |
||
743 | } |
||
744 | |||
745 | TOHEX (p, (- chksum) & 0xff); |
||
746 | p[2] = '\r'; |
||
747 | p[3] = '\n'; |
||
748 | |||
749 | total = 9 + count * 2 + 4; |
||
750 | if (bfd_bwrite (buf, (bfd_size_type) total, abfd) != total) |
||
751 | return FALSE; |
||
752 | |||
753 | return TRUE; |
||
754 | } |
||
755 | |||
756 | /* Write out an Intel Hex file. */ |
||
757 | |||
758 | static bfd_boolean |
||
759 | ihex_write_object_contents (bfd *abfd) |
||
760 | { |
||
761 | bfd_vma segbase; |
||
762 | bfd_vma extbase; |
||
763 | struct ihex_data_list *l; |
||
764 | |||
765 | segbase = 0; |
||
766 | extbase = 0; |
||
767 | for (l = abfd->tdata.ihex_data->head; l != NULL; l = l->next) |
||
768 | { |
||
769 | bfd_vma where; |
||
770 | bfd_byte *p; |
||
771 | bfd_size_type count; |
||
772 | |||
773 | where = l->where; |
||
774 | p = l->data; |
||
775 | count = l->size; |
||
776 | |||
777 | while (count > 0) |
||
778 | { |
||
779 | size_t now; |
||
780 | unsigned int rec_addr; |
||
781 | |||
782 | now = count; |
||
783 | if (count > CHUNK) |
||
784 | now = CHUNK; |
||
785 | |||
786 | if (where > segbase + extbase + 0xffff) |
||
787 | { |
||
788 | bfd_byte addr[2]; |
||
789 | |||
790 | /* We need a new base address. */ |
||
791 | if (where <= 0xfffff) |
||
792 | { |
||
793 | /* The addresses should be sorted. */ |
||
794 | BFD_ASSERT (extbase == 0); |
||
795 | |||
796 | segbase = where & 0xf0000; |
||
797 | addr[0] = (bfd_byte)(segbase >> 12) & 0xff; |
||
798 | addr[1] = (bfd_byte)(segbase >> 4) & 0xff; |
||
799 | if (! ihex_write_record (abfd, 2, 0, 2, addr)) |
||
800 | return FALSE; |
||
801 | } |
||
802 | else |
||
803 | { |
||
804 | /* The extended address record and the extended |
||
805 | linear address record are combined, at least by |
||
806 | some readers. We need an extended linear address |
||
807 | record here, so if we've already written out an |
||
808 | extended address record, zero it out to avoid |
||
809 | confusion. */ |
||
810 | if (segbase != 0) |
||
811 | { |
||
812 | addr[0] = 0; |
||
813 | addr[1] = 0; |
||
814 | if (! ihex_write_record (abfd, 2, 0, 2, addr)) |
||
815 | return FALSE; |
||
816 | segbase = 0; |
||
817 | } |
||
818 | |||
819 | extbase = where & 0xffff0000; |
||
820 | if (where > extbase + 0xffff) |
||
821 | { |
||
822 | char buf[20]; |
||
823 | |||
824 | sprintf_vma (buf, where); |
||
825 | (*_bfd_error_handler) |
||
826 | (_("%s: address 0x%s out of range for Intel Hex file"), |
||
827 | bfd_get_filename (abfd), buf); |
||
828 | bfd_set_error (bfd_error_bad_value); |
||
829 | return FALSE; |
||
830 | } |
||
831 | addr[0] = (bfd_byte)(extbase >> 24) & 0xff; |
||
832 | addr[1] = (bfd_byte)(extbase >> 16) & 0xff; |
||
833 | if (! ihex_write_record (abfd, 2, 0, 4, addr)) |
||
834 | return FALSE; |
||
835 | } |
||
836 | } |
||
837 | |||
838 | rec_addr = where - (extbase + segbase); |
||
839 | |||
840 | /* Output records shouldn't cross 64K boundaries. */ |
||
841 | if (rec_addr + now > 0xffff) |
||
842 | now = 0x10000 - rec_addr; |
||
843 | |||
844 | if (! ihex_write_record (abfd, now, rec_addr, 0, p)) |
||
845 | return FALSE; |
||
846 | |||
847 | where += now; |
||
848 | p += now; |
||
849 | count -= now; |
||
850 | } |
||
851 | } |
||
852 | |||
853 | if (abfd->start_address != 0) |
||
854 | { |
||
855 | bfd_vma start; |
||
856 | bfd_byte startbuf[4]; |
||
857 | |||
858 | start = abfd->start_address; |
||
859 | |||
860 | if (start <= 0xfffff) |
||
861 | { |
||
862 | startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff; |
||
863 | startbuf[1] = 0; |
||
864 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff; |
||
865 | startbuf[3] = (bfd_byte)start & 0xff; |
||
866 | if (! ihex_write_record (abfd, 4, 0, 3, startbuf)) |
||
867 | return FALSE; |
||
868 | } |
||
869 | else |
||
870 | { |
||
871 | startbuf[0] = (bfd_byte)(start >> 24) & 0xff; |
||
872 | startbuf[1] = (bfd_byte)(start >> 16) & 0xff; |
||
873 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff; |
||
874 | startbuf[3] = (bfd_byte)start & 0xff; |
||
875 | if (! ihex_write_record (abfd, 4, 0, 5, startbuf)) |
||
876 | return FALSE; |
||
877 | } |
||
878 | } |
||
879 | |||
880 | if (! ihex_write_record (abfd, 0, 0, 1, NULL)) |
||
881 | return FALSE; |
||
882 | |||
883 | return TRUE; |
||
884 | } |
||
885 | |||
886 | /* Set the architecture for the output file. The architecture is |
||
887 | irrelevant, so we ignore errors about unknown architectures. */ |
||
888 | |||
889 | static bfd_boolean |
||
890 | ihex_set_arch_mach (bfd *abfd, |
||
891 | enum bfd_architecture arch, |
||
892 | unsigned long mach) |
||
893 | { |
||
894 | if (! bfd_default_set_arch_mach (abfd, arch, mach)) |
||
895 | { |
||
896 | if (arch != bfd_arch_unknown) |
||
897 | return FALSE; |
||
898 | } |
||
899 | return TRUE; |
||
900 | } |
||
901 | |||
902 | /* Get the size of the headers, for the linker. */ |
||
903 | |||
904 | static int |
||
905 | ihex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, |
||
906 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
||
907 | { |
||
908 | return 0; |
||
909 | } |
||
910 | |||
911 | /* Some random definitions for the target vector. */ |
||
912 | |||
913 | #define ihex_close_and_cleanup _bfd_generic_close_and_cleanup |
||
914 | #define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info |
||
915 | #define ihex_new_section_hook _bfd_generic_new_section_hook |
||
916 | #define ihex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window |
||
917 | #define ihex_get_symtab_upper_bound bfd_0l |
||
918 | #define ihex_canonicalize_symtab ((long (*) (bfd *, asymbol **)) bfd_0l) |
||
919 | #define ihex_make_empty_symbol _bfd_generic_make_empty_symbol |
||
920 | #define ihex_print_symbol _bfd_nosymbols_print_symbol |
||
921 | #define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info |
||
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_inliner_info _bfd_nosymbols_find_inliner_info |
||
927 | #define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
||
928 | #define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols |
||
929 | #define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol |
||
930 | #define ihex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
||
931 | #define ihex_bfd_relax_section bfd_generic_relax_section |
||
932 | #define ihex_bfd_gc_sections bfd_generic_gc_sections |
||
933 | #define ihex_bfd_lookup_section_flags bfd_generic_lookup_section_flags |
||
934 | #define ihex_bfd_merge_sections bfd_generic_merge_sections |
||
935 | #define ihex_bfd_is_group_section bfd_generic_is_group_section |
||
936 | #define ihex_bfd_discard_group bfd_generic_discard_group |
||
937 | #define ihex_section_already_linked _bfd_generic_section_already_linked |
||
938 | #define ihex_bfd_define_common_symbol bfd_generic_define_common_symbol |
||
939 | #define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
||
940 | #define ihex_bfd_link_hash_table_free _bfd_generic_link_hash_table_free |
||
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 | };=>=>>>>>>><>><>><>><>><>>>>><>><> |