1/* 2****************************************************************************** 3** 4 5** File : LinkerScript.ld 6** 7** Author : Auto-generated by System Workbench for STM32 8** 9** Abstract : Linker script for STM32L451REIx series 10** 512Kbytes FLASH and 160Kbytes 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 = 0x20028000; /* 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 = 160K 65FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 512K 66} 67 68/* Define output sections */ 69SECTIONS 70{ 71 /* The startup code goes first into FLASH */ 72 .isr_vector : 73 { 74 . = ALIGN(8); 75 KEEP(*(.isr_vector)) /* Startup code */ 76 . = ALIGN(8); 77 } >FLASH 78 79 /* The program code and other data goes into FLASH */ 80 .text : 81 { 82 . = ALIGN(8); 83 *(.text) /* .text sections (code) */ 84 *(.text*) /* .text* sections (code) */ 85 *(.glue_7) /* glue arm to thumb code */ 86 *(.glue_7t) /* glue thumb to arm code */ 87 *(.eh_frame) 88 89 KEEP (*(.init)) 90 KEEP (*(.fini)) 91 92 . = ALIGN(8); 93 _etext = .; /* define a global symbols at end of code */ 94 } >FLASH 95 96 /* Constant data goes into FLASH */ 97 .rodata : 98 { 99 . = ALIGN(8); 100 *(.rodata) /* .rodata sections (constants, strings, etc.) */ 101 *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ 102 . = ALIGN(8); 103 } >FLASH 104 105 .ARM.extab : 106 { 107 . = ALIGN(8); 108 *(.ARM.extab* .gnu.linkonce.armextab.*) 109 . = ALIGN(8); 110 } >FLASH 111 .ARM : { 112 . = ALIGN(8); 113 __exidx_start = .; 114 *(.ARM.exidx*) 115 __exidx_end = .; 116 . = ALIGN(8); 117 } >FLASH 118 119 .preinit_array : 120 { 121 . = ALIGN(8); 122 PROVIDE_HIDDEN (__preinit_array_start = .); 123 KEEP (*(.preinit_array*)) 124 PROVIDE_HIDDEN (__preinit_array_end = .); 125 . = ALIGN(8); 126 } >FLASH 127 128 .init_array : 129 { 130 . = ALIGN(8); 131 PROVIDE_HIDDEN (__init_array_start = .); 132 KEEP (*(SORT(.init_array.*))) 133 KEEP (*(.init_array*)) 134 PROVIDE_HIDDEN (__init_array_end = .); 135 . = ALIGN(8); 136 } >FLASH 137 .fini_array : 138 { 139 . = ALIGN(8); 140 PROVIDE_HIDDEN (__fini_array_start = .); 141 KEEP (*(SORT(.fini_array.*))) 142 KEEP (*(.fini_array*)) 143 PROVIDE_HIDDEN (__fini_array_end = .); 144 . = ALIGN(8); 145 } >FLASH 146 147 /* used by the startup to initialize data */ 148 _sidata = LOADADDR(.data); 149 150 /* Initialized data sections goes into RAM, load LMA copy after code */ 151 .data : 152 { 153 . = ALIGN(8); 154 _sdata = .; /* create a global symbol at data start */ 155 *(.data) /* .data sections */ 156 *(.data*) /* .data* sections */ 157 158 . = ALIGN(8); 159 _edata = .; /* define a global symbol at data end */ 160 } >RAM AT> FLASH 161 162 163 /* Uninitialized data section */ 164 . = ALIGN(4); 165 .bss : 166 { 167 /* This is used by the startup in order to initialize the .bss secion */ 168 _sbss = .; /* define a global symbol at bss start */ 169 __bss_start__ = _sbss; 170 *(.bss) 171 *(.bss*) 172 *(COMMON) 173 174 . = ALIGN(4); 175 _ebss = .; /* define a global symbol at bss end */ 176 __bss_end__ = _ebss; 177 } >RAM 178 179 /* User_heap_stack section, used to check that there is enough RAM left */ 180 ._user_heap_stack : 181 { 182 . = ALIGN(8); 183 PROVIDE ( end = . ); 184 PROVIDE ( _end = . ); 185 . = . + _Min_Heap_Size; 186 . = . + _Min_Stack_Size; 187 . = ALIGN(8); 188 } >RAM 189 190 191 192 /* Remove information from the standard libraries */ 193 /DISCARD/ : 194 { 195 libc.a ( * ) 196 libm.a ( * ) 197 libgcc.a ( * ) 198 } 199 200 .ARM.attributes 0 : { *(.ARM.attributes) } 201} 202 203 204