1/* 2****************************************************************************** 3** 4 5** File : LinkerScript.ld 6** 7** Author : Auto-generated by System Workbench for STM32 8** 9** Abstract : Linker script for STM32L476RGTx series 10** 1024Kbytes FLASH and 128Kbytes RAM 11** 12** Set heap size, stack size and stack location according 13** to application requirements. 14** 15** Set memory bank area and size if external memory is used. 16** 17** Target : STMicroelectronics STM32 18** 19** Distribution: The file is distributed “as is,” without any warranty 20** of any kind. 21** 22***************************************************************************** 23** @attention 24** 25** <h2><center>© COPYRIGHT(c) 2019 STMicroelectronics</center></h2> 26** 27** Redistribution and use in source and binary forms, with or without modification, 28** are permitted provided that the following conditions are met: 29** 1. Redistributions of source code must retain the above copyright notice, 30** this list of conditions and the following disclaimer. 31** 2. Redistributions in binary form must reproduce the above copyright notice, 32** this list of conditions and the following disclaimer in the documentation 33** and/or other materials provided with the distribution. 34** 3. Neither the name of STMicroelectronics nor the names of its contributors 35** may be used to endorse or promote products derived from this software 36** without specific prior written permission. 37** 38** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 39** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 41** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 42** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 43** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 44** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 45** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 47** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 48** 49***************************************************************************** 50*/ 51 52/* Entry Point */ 53ENTRY(Reset_Handler) 54 55/* Highest address of the user mode stack */ 56_estack = 0x20018000; /* end of RAM */ 57/* Generate a link error if heap and stack don't fit into RAM */ 58_Min_Heap_Size = 0x200; /* required amount of heap */ 59_Min_Stack_Size = 0x400; /* required amount of stack */ 60 61/* Specify the memory areas */ 62MEMORY 63{ 64RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 96K 65RAM2 (xrw) : ORIGIN = 0x10000000, LENGTH = 32K 66FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 1024K 67} 68 69/* Define output sections */ 70SECTIONS 71{ 72 /* The startup code goes first into FLASH */ 73 .isr_vector : 74 { 75 . = ALIGN(8); 76 KEEP(*(.isr_vector)) /* Startup code */ 77 . = ALIGN(8); 78 } >FLASH 79 80 /* The program code and other data goes into FLASH */ 81 .text : 82 { 83 . = ALIGN(8); 84 *(.text) /* .text sections (code) */ 85 *(.text*) /* .text* sections (code) */ 86 *(.glue_7) /* glue arm to thumb code */ 87 *(.glue_7t) /* glue thumb to arm code */ 88 *(.eh_frame) 89 90 KEEP (*(.init)) 91 KEEP (*(.fini)) 92 93 . = ALIGN(8); 94 _etext = .; /* define a global symbols at end of code */ 95 } >FLASH 96 97 /* Constant data goes into FLASH */ 98 .rodata : 99 { 100 . = ALIGN(8); 101 *(.rodata) /* .rodata sections (constants, strings, etc.) */ 102 *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ 103 . = ALIGN(8); 104 } >FLASH 105 106 .ARM.extab : 107 { 108 . = ALIGN(8); 109 *(.ARM.extab* .gnu.linkonce.armextab.*) 110 . = ALIGN(8); 111 } >FLASH 112 .ARM : { 113 . = ALIGN(8); 114 __exidx_start = .; 115 *(.ARM.exidx*) 116 __exidx_end = .; 117 . = ALIGN(8); 118 } >FLASH 119 120 .preinit_array : 121 { 122 . = ALIGN(8); 123 PROVIDE_HIDDEN (__preinit_array_start = .); 124 KEEP (*(.preinit_array*)) 125 PROVIDE_HIDDEN (__preinit_array_end = .); 126 . = ALIGN(8); 127 } >FLASH 128 129 .init_array : 130 { 131 . = ALIGN(8); 132 PROVIDE_HIDDEN (__init_array_start = .); 133 KEEP (*(SORT(.init_array.*))) 134 KEEP (*(.init_array*)) 135 PROVIDE_HIDDEN (__init_array_end = .); 136 . = ALIGN(8); 137 } >FLASH 138 .fini_array : 139 { 140 . = ALIGN(8); 141 PROVIDE_HIDDEN (__fini_array_start = .); 142 KEEP (*(SORT(.fini_array.*))) 143 KEEP (*(.fini_array*)) 144 PROVIDE_HIDDEN (__fini_array_end = .); 145 . = ALIGN(8); 146 } >FLASH 147 148 /* used by the startup to initialize data */ 149 _sidata = LOADADDR(.data); 150 151 /* Initialized data sections goes into RAM, load LMA copy after code */ 152 .data : 153 { 154 . = ALIGN(8); 155 _sdata = .; /* create a global symbol at data start */ 156 *(.data) /* .data sections */ 157 *(.data*) /* .data* sections */ 158 159 . = ALIGN(8); 160 _edata = .; /* define a global symbol at data end */ 161 } >RAM AT> FLASH 162 163 164 /* Uninitialized data section */ 165 . = ALIGN(4); 166 .bss : 167 { 168 /* This is used by the startup in order to initialize the .bss secion */ 169 _sbss = .; /* define a global symbol at bss start */ 170 __bss_start__ = _sbss; 171 *(.bss) 172 *(.bss*) 173 *(COMMON) 174 175 . = ALIGN(4); 176 _ebss = .; /* define a global symbol at bss end */ 177 __bss_end__ = _ebss; 178 } >RAM 179 180 /* User_heap_stack section, used to check that there is enough RAM left */ 181 ._user_heap_stack : 182 { 183 . = ALIGN(8); 184 PROVIDE ( end = . ); 185 PROVIDE ( _end = . ); 186 . = . + _Min_Heap_Size; 187 . = . + _Min_Stack_Size; 188 . = ALIGN(8); 189 } >RAM 190 191 192 193 /* Remove information from the standard libraries */ 194 /DISCARD/ : 195 { 196 libc.a ( * ) 197 libm.a ( * ) 198 libgcc.a ( * ) 199 } 200 201 .ARM.attributes 0 : { *(.ARM.attributes) } 202} 203 204 205