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annotate gcc/config/avr/driver-avr.c @ 67:f6334be47118

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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 22 Mar 2011 17:18:12 +0900
parents 77e2b8dfacca
children 04ced10e8804
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55
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1 /* Subroutines for the gcc driver.
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2 Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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3 Contributed by Anatoly Sokolov <aesok@post.ru>
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4
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5 This file is part of GCC.
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6
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7 GCC 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, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #include "config.h"
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22 #include "system.h"
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23 #include "coretypes.h"
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24 #include "tm.h"
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25
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26 /* Current architecture. */
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27 const struct base_arch_s *avr_current_arch = NULL;
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28
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29 /* Current device. */
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30 const struct mcu_type_s *avr_current_device = NULL;
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31
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32 /* Initialize avr_current_arch and avr_current_device variables. */
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33
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34 static void
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35 avr_set_current_device (const char *name)
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36 {
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37
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38 if (NULL != avr_current_arch)
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39 return;
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40
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41 for (avr_current_device = avr_mcu_types; avr_current_device->name;
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42 avr_current_device++)
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43 {
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44 if (strcmp (avr_current_device->name, name) == 0)
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45 break;
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46 }
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47
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48 avr_current_arch = &avr_arch_types[avr_current_device->arch];
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49 }
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50
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51 /* Returns command line parameters that describe the device architecture. */
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52
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53 const char *
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54 avr_device_to_arch (int argc, const char **argv)
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55 {
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56 if (0 == argc)
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57 return NULL;
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58
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59 avr_set_current_device (argv[0]);
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60
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61 return concat ("-m ", avr_current_arch->arch_name, NULL);
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62 }
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63
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64 /* Returns command line parameters that describe start of date section. */
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65
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66 const char *
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67 avr_device_to_data_start (int argc, const char **argv)
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68 {
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69 unsigned long data_section_start;
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70 char data_section_start_str[16];
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71
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72 if (0 == argc)
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73 return NULL;
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74
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75 avr_set_current_device (argv[0]);
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76
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77 if (avr_current_device->data_section_start
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78 == avr_current_arch->default_data_section_start)
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79 return NULL;
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80
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81 data_section_start = 0x800000 + avr_current_device->data_section_start;
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82
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83 snprintf (data_section_start_str, sizeof(data_section_start_str) - 1,
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84 "0x%lX", data_section_start);
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85
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86 return concat ("-Tdata ", data_section_start_str, NULL);
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87 }
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88
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89 /* Returns command line parameters that describe the device startfile. */
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90
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91 const char *
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92 avr_device_to_startfiles (int argc, const char **argv)
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93 {
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94 if (0 == argc)
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95 return NULL;
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96
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97 avr_set_current_device (argv[0]);
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98
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99 return concat ("crt", avr_current_device->library_name, ".o%s", NULL);
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100 }
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101
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102 /* Returns command line parameters that describe the device library. */
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103
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104 const char *
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105 avr_device_to_devicelib (int argc, const char **argv)
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106 {
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107 if (0 == argc)
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108 return NULL;
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109
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110 avr_set_current_device (argv[0]);
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111
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112 return concat ("-l", avr_current_device->library_name, NULL);
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113 }
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114