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annotate packages/hal/cortexm/arch/current/src/cortexm.ld @ 2580:07fc475e1c28

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Add Cortex-M architecture HAL, STM32 variant and STM3210E platform HALs. Add STM32 serial driver and on-chip flash driver. Fix some compile problems with dlmalloc. See the various ChangeLogs for details.
author nickg
date Mon, 03 Nov 2008 14:53:50 +0000
parents
children 74dbf4c3f2e1
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rev   line source
2580
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1 //=============================================================================
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2 //
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3 // MLT linker script for Cortex-M
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4 //
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5 //=============================================================================
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6 //####ECOSGPLCOPYRIGHTBEGIN####
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7 // -------------------------------------------
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8 // This file is part of eCos, the Embedded Configurable Operating System.
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9 // Copyright (C) 2008 eCosCentric Limited.
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10 //
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11 // eCos is free software; you can redistribute it and/or modify it under
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12 // the terms of the GNU General Public License as published by the Free
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13 // Software Foundation; either version 2 or (at your option) any later version.
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14 //
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15 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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16 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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18 // for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License along
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21 // with eCos; if not, write to the Free Software Foundation, Inc.,
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22 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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23 //
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24 // As a special exception, if other files instantiate templates or use macros
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25 // or inline functions from this file, or you compile this file and link it
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26 // with other works to produce a work based on this file, this file does not
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27 // by itself cause the resulting work to be covered by the GNU General Public
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28 // License. However the source code for this file must still be made available
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29 // in accordance with section (3) of the GNU General Public License.
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30 //
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31 // This exception does not invalidate any other reasons why a work based on
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32 // this file might be covered by the GNU General Public License.
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33 // -------------------------------------------
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34 //####ECOSGPLCOPYRIGHTEND####
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35 //=============================================================================
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36
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37 #include <pkgconf/system.h>
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38 #include <pkgconf/hal.h>
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39
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40 STARTUP(vectors.o)
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41 ENTRY(reset_vector)
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42 INPUT(extras.o)
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43 GROUP(libtarget.a libgcc.a libsupc++.a)
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44
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45 #if defined(__ARMEB__)
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46 OUTPUT_FORMAT(elf32-bigarm)
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47 #endif
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48
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49 // ALIGN_LMA is 4, but the AAPCS now requires that double word types
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50 // be aligned to 8, which means some input sections can be marked as needing
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51 // 8-byte alignment, even text ones (consider literal data).
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52
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53 #define ALIGN_LMA 4
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54 #define AAPCS_ALIGN 8
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55 #define FOLLOWING_ALIGNED(_section_, _align_) AT ((LOADADDR (_section_) + SIZEOF (_section_) + (_align_) - 1) & ~ ((_align_) - 1))
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56 #define FOLLOWING(_section_) FOLLOWING_ALIGNED(_section_, ALIGN_LMA)
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57
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58 #define LMA_EQ_VMA
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59 #define FORCE_OUTPUT . = .
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60
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61 // Some versions of gcc define "arm" which causes problems with .note.arm.ident
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62 #undef arm
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63 #define SECTIONS_BEGIN \
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64 /* Debug information */ \
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65 .debug_aranges 0 : { *(.debug_aranges) } \
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66 .debug_pubnames 0 : { *(.debug_pubnames) } \
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67 .debug_info 0 : { *(.debug_info) } \
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68 .debug_abbrev 0 : { *(.debug_abbrev) } \
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69 .debug_line 0 : { *(.debug_line) } \
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70 .debug_frame 0 : { *(.debug_frame) } \
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71 .debug_str 0 : { *(.debug_str) } \
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72 .debug_loc 0 : { *(.debug_loc) } \
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73 .debug_macinfo 0 : { *(.debug_macinfo) } \
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74 .note.arm.ident 0 : { KEEP (*(.note.arm.ident)) } \
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75 /DISCARD/ 0 : { *(.fini_array*) }
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76
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77
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78 // Following not used unless CYGHWR_HAL_ARM_SEPARATE_VSR_TABLE
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79 // defined in hal_platform_setup.h. Otherwise vsr table
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80 // goes in .fixed_vectors.
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81 #define SECTION_hal_vsr_table(_region_, _vma_, _lma_) \
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82 .hal_vsr_table _vma_ : _lma_ \
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83 { FORCE_OUTPUT; KEEP (*(.hal_vsr_table)) } \
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84 > _region_
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85
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86 #define SECTION_fixed_vectors(_region_, _vma_, _lma_) \
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87 .fixed_vectors _vma_ : _lma_ \
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88 { FORCE_OUTPUT; KEEP (*(.fixed_vectors)) } \
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89 > _region_
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90
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91 #define SECTION_rom_vectors(_region_, _vma_, _lma_) \
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92 .rom_vectors _vma_ : _lma_ \
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93 { __rom_vectors_vma = ABSOLUTE(.); \
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94 FORCE_OUTPUT; KEEP (*(.vectors)) } \
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95 > _region_ \
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96 __rom_vectors_lma = LOADADDR(.rom_vectors);
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97
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98 // We slot in the .ARM.extab and .ARM.exidx sections first. They
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99 // need to be close to .text due to their relocations which may
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100 // want small offsets - .rodata may be somewhere very different.
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101 // This approach also allows forward compatibility with targets
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102 // which haven't used the EABI before (no new SECTION_xxx definition
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103 // to use).
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104 // One glitch is that the AAPCS can require up to 8-byte alignment
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105 // for double word types. For sections after the first (for which we
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106 // "trust" the MLT files (probably a mistake)), we need to
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107 // ensure the subsequent sections' VMA and LMA move in sync, which
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108 // means keeping the same alignment, and thus since for example literal
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109 // data in .text can require up to 8 byte alignment, the LMA must also
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110 // be 8 byte aligned.
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111 #define SECTION_text(_region_, _vma_, _lma_) \
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112 .ARM.extab _vma_ : _lma_ \
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113 { PROVIDE (__stext = ABSOLUTE(.));_stext = ABSOLUTE(.) ; \
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114 FORCE_OUTPUT; \
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115 *(.ARM.extab* .gnu.linkonce.armextab.*) } > _region_ \
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116 . = ALIGN(AAPCS_ALIGN); \
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117 __exidx_start = ABSOLUTE(.); \
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118 .ARM.exidx ALIGN(AAPCS_ALIGN) : FOLLOWING_ALIGNED(.ARM.extab, AAPCS_ALIGN) { \
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119 *(.ARM.exidx* .gnu.linkonce.armexidx.*) \
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120 FORCE_OUTPUT; \
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121 } > _region_ \
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122 __exidx_end = ABSOLUTE(.);\
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123 .text ALIGN(AAPCS_ALIGN) : FOLLOWING_ALIGNED(.ARM.exidx, AAPCS_ALIGN) \
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124 { \
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125 *(.text*) *(.gnu.warning) *(.gnu.linkonce.t.*) *(.init) \
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126 *(.glue_7) *(.glue_7t) \
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127 __CTOR_LIST__ = ABSOLUTE (.); KEEP (*(SORT (.ctors*))) __CTOR_END__ = ABSOLUTE (.); \
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128 __DTOR_LIST__ = ABSOLUTE (.); KEEP (*(SORT (.dtors*))) __DTOR_END__ = ABSOLUTE (.); \
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129 } > _region_ \
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130 _etext = .; PROVIDE (__etext = .);
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131
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132 #define SECTION_fini(_region_, _vma_, _lma_) \
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133 .fini _vma_ : _lma_ \
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134 { FORCE_OUTPUT; *(.fini) } \
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135 > _region_
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136
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137 #define SECTION_rodata(_region_, _vma_, _lma_) \
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138 .rodata _vma_ : _lma_ \
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139 { FORCE_OUTPUT; *(.rodata*) *(.gnu.linkonce.r.*) } \
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140 > _region_
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141
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142 #define SECTION_rodata1(_region_, _vma_, _lma_) \
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143 .rodata1 _vma_ : _lma_ \
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144 { FORCE_OUTPUT; *(.rodata1) } \
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145 > _region_
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146
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147 #define SECTION_fixup(_region_, _vma_, _lma_) \
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148 .fixup _vma_ : _lma_ \
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149 { FORCE_OUTPUT; *(.fixup) } \
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150 > _region_
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151
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152 #define SECTION_gcc_except_table(_region_, _vma_, _lma_) \
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153 .gcc_except_table _vma_ : _lma_ \
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154 { FORCE_OUTPUT; \
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155 KEEP(*(.gcc_except_table)) \
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156 *(.gcc_except_table.*) \
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157 } > _region_
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158
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159 #define SECTION_eh_frame(_region_, _vma_, _lma_) \
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160 .eh_frame _vma_ : _lma_ \
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161 { \
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162 FORCE_OUTPUT; __EH_FRAME_BEGIN__ = .; \
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163 KEEP(*(.eh_frame)) \
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164 __FRAME_END__ = .; \
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165 . = . + 8; \
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166 } > _region_ = 0
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167
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168 #define SECTION_RELOCS(_region_, _vma_, _lma_) \
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169 .rel.text : \
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170 { \
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171 *(.rel.text) \
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172 *(.rel.text.*) \
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173 *(.rel.gnu.linkonce.t*) \
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174 } > _region_ \
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175 .rela.text : \
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176 { \
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177 *(.rela.text) \
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178 *(.rela.text.*) \
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179 *(.rela.gnu.linkonce.t*) \
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180 } > _region_ \
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181 .rel.data : \
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182 { \
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183 *(.rel.data) \
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184 *(.rel.data.*) \
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185 *(.rel.gnu.linkonce.d*) \
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186 } > _region_ \
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187 .rela.data : \
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188 { \
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189 *(.rela.data) \
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190 *(.rela.data.*) \
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191 *(.rela.gnu.linkonce.d*) \
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192 } > _region_ \
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193 .rel.rodata : \
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194 { \
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195 *(.rel.rodata) \
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196 *(.rel.rodata.*) \
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197 *(.rel.gnu.linkonce.r*) \
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198 } > _region_ \
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199 .rela.rodata : \
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200 { \
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201 *(.rela.rodata) \
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202 *(.rela.rodata.*) \
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203 *(.rela.gnu.linkonce.r*) \
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204 } > _region_ \
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205 .rel.got : { *(.rel.got) } > _region_ \
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206 .rela.got : { *(.rela.got) } > _region_ \
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207 .rel.ctors : { *(.rel.ctors) } > _region_ \
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208 .rela.ctors : { *(.rela.ctors) } > _region_ \
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209 .rel.dtors : { *(.rel.dtors) } > _region_ \
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210 .rela.dtors : { *(.rela.dtors) } > _region_ \
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211 .rel.init : { *(.rel.init) } > _region_ \
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212 .rela.init : { *(.rela.init) } > _region_ \
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213 .rel.fini : { *(.rel.fini) } > _region_ \
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214 .rela.fini : { *(.rela.fini) } > _region_ \
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215 .rel.bss : { *(.rel.bss) } > _region_ \
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216 .rela.bss : { *(.rela.bss) } > _region_ \
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217 .rel.plt : { *(.rel.plt) } > _region_ \
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218 .rela.plt : { *(.rela.plt) } > _region_ \
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219 .rel.dyn : { *(.rel.dyn) } > _region_
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220
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221 #define SECTION_got(_region_, _vma_, _lma_) \
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222 .got _vma_ : _lma_ \
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223 { \
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224 FORCE_OUTPUT; *(.got.plt) *(.got) \
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225 _GOT1_START_ = ABSOLUTE (.); *(.got1) _GOT1_END_ = ABSOLUTE (.); \
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226 _GOT2_START_ = ABSOLUTE (.); *(.got2) _GOT2_END_ = ABSOLUTE (.); \
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227 } > _region_
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228
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229 #define SECTION_mmu_tables(_region_, _vma_, _lma_) \
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230 .mmu_tables _vma_ : _lma_ \
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231 { FORCE_OUTPUT; *(.mmu_tables) } \
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232 > _region_
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233
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234 #define SECTION_sram(_region_, _vma_, _lma_) \
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235 .sram _vma_ : _lma_ \
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236 { FORCE_OUTPUT; *(.sram*) } \
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237 > _region_
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238
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239 #define SECTION_data(_region_, _vma_, _lma_) \
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240 .data _vma_ : _lma_ \
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241 { __ram_data_start = ABSOLUTE (.); \
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242 *(.data*) *(.data1) *(.gnu.linkonce.d.*) \
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243 . = ALIGN (4); \
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244 KEEP(*( SORT (.ecos.table.*))) ; \
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245 . = ALIGN (4); \
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246 __init_array_start__ = ABSOLUTE (.); KEEP (*(SORT (.init_array.*))) \
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247 KEEP (*(SORT (.init_array))) __init_array_end__ = ABSOLUTE (.); \
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248 *(.dynamic) *(.sdata*) *(.gnu.linkonce.s.*) \
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249 . = ALIGN (4); *(.2ram.*) } \
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250 > _region_ \
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251 __rom_data_start = LOADADDR (.data); \
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252 __ram_data_end = .; PROVIDE (__ram_data_end = .); _edata = .; PROVIDE (edata = .); \
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253 PROVIDE (__rom_data_end = LOADADDR (.data) + SIZEOF(.data));
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254
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255 #define SECTION_bss(_region_, _vma_, _lma_) \
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256 .bss _vma_ : _lma_ \
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257 { __bss_start = ABSOLUTE (.); \
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258 *(.scommon) *(.dynsbss) *(.sbss*) *(.gnu.linkonce.sb.*) \
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259 *(.dynbss) *(.bss*) *(.gnu.linkonce.b.*) *(COMMON) \
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260 __bss_end = ABSOLUTE (.); } \
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261 > _region_
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262
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263 #define SECTIONS_END . = ALIGN(4); _end = .; PROVIDE (end = .);
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264
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265 #include <pkgconf/hal_cortexm.h>
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266 #include CYGHWR_MEMORY_LAYOUT_LDI