1 /* Linker script for Silicon Labs EFM32GG devices */
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3 /* This file is subject to the license terms as defined in ARM's */
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4 /* CMSIS END USER LICENSE AGREEMENT.pdf, governing the use of */
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7 /* Silicon Laboratories, Inc. 2015 */
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14 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 1048576
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15 RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 131072
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18 /* Linker script to place sections and symbol values. Should be used together
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19 * with other linker script that defines memory regions FLASH and RAM.
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20 * It references following symbols, which must be defined in code:
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21 * Reset_Handler : Entry of reset handler
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23 * It defines following symbols, which code can use without definition:
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26 * __copy_table_start__
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27 * __copy_table_end__
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28 * __zero_table_start__
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29 * __zero_table_end__
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32 * __preinit_array_start
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33 * __preinit_array_end
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34 * __init_array_start
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36 * __fini_array_start
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50 ENTRY(Reset_Handler)
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58 __Vectors_Size = __Vectors_End - __Vectors;
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68 *crtbegin?.o(.ctors)
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69 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
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75 *crtbegin?.o(.dtors)
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76 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
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87 *(.ARM.extab* .gnu.linkonce.armextab.*)
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93 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
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97 /* To copy multiple ROM to RAM sections,
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98 * uncomment .copy.table section and,
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99 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
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104 __copy_table_start__ = .;
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106 LONG (__data_start__)
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107 LONG (__data_end__ - __data_start__)
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109 LONG (__data2_start__)
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110 LONG (__data2_end__ - __data2_start__)
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111 __copy_table_end__ = .;
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115 /* To clear multiple BSS sections,
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116 * uncomment .zero.table section and,
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117 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
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122 __zero_table_start__ = .;
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123 LONG (__bss_start__)
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124 LONG (__bss_end__ - __bss_start__)
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125 LONG (__bss2_start__)
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126 LONG (__bss2_end__ - __bss2_start__)
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127 __zero_table_end__ = .;
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133 .data : AT (__etext)
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135 __data_start__ = .;
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143 PROVIDE_HIDDEN (__preinit_array_start = .);
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144 KEEP(*(.preinit_array))
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145 PROVIDE_HIDDEN (__preinit_array_end = .);
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149 PROVIDE_HIDDEN (__init_array_start = .);
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150 KEEP(*(SORT(.init_array.*)))
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151 KEEP(*(.init_array))
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152 PROVIDE_HIDDEN (__init_array_end = .);
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156 PROVIDE_HIDDEN (__fini_array_start = .);
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157 KEEP(*(SORT(.fini_array.*)))
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158 KEEP(*(.fini_array))
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159 PROVIDE_HIDDEN (__fini_array_end = .);
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188 /* .stack_dummy section doesn't contains any symbols. It is only
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189 * used for linker to calculate size of stack sections, and assign
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190 * values to stack symbols later */
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191 .stack_dummy (COPY):
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196 /* Set stack top to end of RAM, and stack limit move down by
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197 * size of stack_dummy section */
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198 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
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199 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
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200 PROVIDE(__stack = __StackTop);
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202 /* Check if data + heap + stack exceeds RAM limit */
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203 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
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205 /* Check if FLASH usage exceeds FLASH size */
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206 ASSERT( LENGTH(FLASH) >= (__etext + SIZEOF(.data)), "FLASH memory overflowed !")
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