FreeCalypso > hg > tcs211-pirelli

annotate chipsetsw/system/template/gsm_ds_k5a3281_big.template @ 22:89f63833708e

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RVT memory size drastically increased, now almost no loss with ext LCD out
author Space Falcon <falcon@ivan.Harhan.ORG>
date Sun, 06 Sep 2015 23:33:47 +0000
parents chipsetsw/system/template/gsm_ds_k5a3281_2092.template@a0c4fd5c7430
children
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1 /*
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2 * Integrated Protocol Stack Linker command file (all components)
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3 *
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4 * Target : ARM
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5 *
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6 * Copyright (c) Texas Instruments 2002, Condat 2002
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7 *
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8 * This version of the linker script template has been concocted
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9 * by Spacefalcon the Outlaw, based on gsm_ds_amd8_lj3.template,
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10 * in order to build the GSM firmware for the memory configuration
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11 * found in the Openmoko GTA0x GSM modem, which consists of the
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12 * K5A3281 flash+RAM MCP plus the 512 KiB of internal RAM in the
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13 * Calypso (PD751992A) chip itself.
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89f63833708e RVT memory size drastically increased, now almost no loss with ext LCD out
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14 *
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15 * More recent revision: the present version has been concocted in order to
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16 * squeeze TI's pdt_2092 configuration (on-board UI enabled) into the same
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17 * small physical memory config, with the additional complication that we need
89f63833708e RVT memory size drastically increased, now almost no loss with ext LCD out
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18 * a lot of RAM for our enlargement of RVT's memory bank which is in turn
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19 * needed for our external LCD output hack. We will probably have to use
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20 * this linker script version for pdt_2091 built in this tree as well,
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21 * as it's too difficult to conditionalize the RVT enlargement on pdt_2092.
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22 */
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23
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24 -c /* Autoinitialize variables at runtime */
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25
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26 /*********************************/
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27 /* SPECIFY THE SYSTEM MEMORY MAP */
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28 /*********************************/
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29
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30 MEMORY
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31 {
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32 /* CS0: Flash 4 Mbytes ****************************************************/
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33 /* Interrupt Vectors Table */
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34 I_MEM (RXI) : org = 0x00000000 len = 0x00000100
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35
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36 /* Boot Sector */
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37 B_MEM (RXI) : org = 0x00000100 len = 0x00001f00
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38
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39 /* Magic Word for Calypso Boot ROM */
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40 MWC_MEM (RXI) : org = 0x00002000 len = 0x00000004 fill = 0x0000001
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41
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42 /* Program Memory */
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43 P_MEM1 (RXI) : org = 0x00004000 len = 0x00000700
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44 P_MEM2 (RXI) : org = 0x00004700 len = 0x00000004
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45 P_MEM3 (RXI) : org = 0x00004704 len = 0x0037b8fc
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46
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47 /* FFS Area */
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48 FFS_MEM (RX) : org = 0x00380000 len = 0x00080000
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49 /**************************************************************************/
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50
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51 /* CS1: External SRAM 1 Mbytes ********************************************/
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52 /* Data Memory */
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53
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54 /*
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55 *** HACK by Spacefalcon the Outlaw ***
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56 *
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57 * The starting Leonardo version (gsm_ds_amd8_lj3.template) had two
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58 * external SRAM regions: D_MEM1 and D_MEM2. When I tried removing
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59 * D_MEM2 and keeping only D_MEM1, the linker started behaving oddly
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60 * in that the sections were emitted in the wrong order, and the
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61 * addresses printed in the map file were bogus. The resulting m0
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62 * images seemed to still work correctly, but I feel that having the
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63 * linker act "correctly" is better.
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64 *
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65 * My original hack-solution was to split the 1 MiB physical XRAM
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66 * into D_MEM1 and D_MEM2 of 512 KiB each. As it happens, the total
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67 * XRAM usage of the standard pdt_2091 firmware is a little below
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68 * 512 KiB anyway.
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69 *
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70 * Revision for pdt_2092 memory usage: D_MEM2 is now the last 64 KiB
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71 * and D_MEM1 is the rest.
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72 */
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73
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74 D_MEM1 (RW) : org = 0x01000000 len = 0x000F0000
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75 D_MEM2 (RW) : org = 0x010F0000 len = 0x00010000
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76 /**************************************************************************/
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77
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78 /* CS6: Calypso Internal SRAM 512 kbytes **********************************/
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79 /* Code & Variables Memory */
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80 S_MEM (RXW) : org = 0x00800000 len = 0x00080000
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81 /**************************************************************************/
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82 }
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83
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84 /***********************************************/
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85 /* SPECIFY THE SECTIONS ALLOCATION INTO MEMORY */
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86 /***********************************************/
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87
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88 /*
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89 * Since the bootloader directly calls the INT_Initialize() routine located
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90 * in int.s, this int.s code must always be mapped at the same address
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91 * (usually in the second flash sector). Its length is about 0x500 bytes.
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92 * Then comes the code that need to be loaded into the internal RAM.
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93 */
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94
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95 SECTIONS
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96 {
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97 .intvecs : {} > I_MEM /* Interrupt Vectors Table */
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98 .monitor : > B_MEM /* Monitor Constants & Code */
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99 {
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100 $(CONST_BOOT_LIB)
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101 }
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102
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103 .inttext : {} > P_MEM1 /* int.s Code */
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104
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105 .bss_dar : > D_MEM1 /* DAR SWE Variables */
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106 {
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107 $(BSS_DAR_LIB)
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108 }
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109
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110 /*
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111 * The .bss section should not be split to ensure it is initialized to 0
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112 * each time the SW is reset. So the whole .bss is mapped either in D_MEM1
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113 * or in D_MEM2.
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114 *
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115 * Falcon's note for K5A3281: see the comments above where the memory
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116 * regions are defined.
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117 */
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118
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119 .bss : > D_MEM1 | D_MEM2 /* Global & Static Variables */
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120 {
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121 $(BSS_BOOT_LIB)
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122 }
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123
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124 /*
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125 * All .bss sections, which must be mapped in internal RAM must be
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126 * grouped in order to initialized the corresponding memory to 0.
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127 * This initialization is done in int.s file before calling the Nucleus
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128 * routine.
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129 */
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130
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131 GROUP
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132 {
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133 S_D_Mem /* Label of start address of .bss section in Int. RAM */
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134 .DintMem
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135 {
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136
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137 /*
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138 * .bss sections of the application
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139 */
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140
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141 $(BSS_LIBS)
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142
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143 }
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144
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145 API_HISR_stack : {}
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146
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147 E_D_Mem /* Label of end address of .bss section in Int. RAM */
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148 } > S_MEM
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149
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150 /*
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151 * .text and .const sections which must be mapped in internal RAM.
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152 */
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153
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154 .ldfl : {} > P_MEM2 /* Used to know the start load address */
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155 GROUP load = P_MEM3, run = S_MEM
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156 {
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157 S_P_Mem /* Label of start address of .text & .const sections in Int. RAM */
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158 .PIntMem
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159 {
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160 /*
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161 * .text and .const sections of the application.
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162 *
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163 * The .veneer sections correspond exactly to .text:v&n sections
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164 * implementing the veneer functions. The .text:v$n -> .veneer
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165 * translation is performed by PTOOL software when PTOOL_OPTIONS
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166 * environement variable is set to veneer_section.
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167 */
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168
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169 $(CONST_LIBS)
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170
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171 }
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172 E_P_Mem /* Label of end address of .text and .const sections in Int. RAM */
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173 }
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174
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175 /*
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176 * The rest of the code is mapped in flash, however the trampolines
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177 * load address should be consistent with .text.
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178 */
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179 COMMENT2START
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180 `trampolines load = P_MEM3, run = S_MEM
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181 COMMENT2END
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182
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183 .text : {} > P_MEM3 /* Code */
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184
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185 /*
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186 * The rest of the constants is mapped in flash.
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187 * The .cinit section should not be split.
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188 */
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189
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190 .cinit : {} > P_MEM3 /* Initialization Tables */
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191 .const : {} > P_MEM3 /* Constant Data */
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192 KadaAPI : {} > P_MEM3 /* ROMized CLDC */
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193
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194 .javastack: {} >> D_MEM1 | D_MEM2 /* Java stack */
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195
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196 .stackandheap : > D_MEM1 /* System Stacks, etc... */
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197 {
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198 /* Leave 20 32bit words for register pushes. */
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199 . = align(8);
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200 . += 20 * 4;
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201
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202 /* Stack for abort and/or undefined modes. */
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203 exception_stack = .;
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204
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205 /* Leave 38 32bit words for state saving on exceptions. */
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206 _xdump_buffer = .;
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207 . += 38 * 4;
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208 . = align(8);
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209
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210 /* Beginning of stacks and heap area - 2.75 kbytes (int.s) */
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211 stack_segment = .;
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212 . += 0xB00;
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213 }
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214
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215 .data : {} > D_MEM1 /* Initialized Data */
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216 .sysmem : {} > D_MEM1 /* Dynamic Memory Allocation Area */
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217
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218 }