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[Bootloader] bootloader updater for NUCLEO-G431KB
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examples/projects/NUCLEO-G431KB/bootloader/linker/custom_bootloader_updater_script.ld
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| /** | ||
| ****************************************************************************** | ||
| * @file LinkerScript.ld | ||
| * @author Auto-generated by STM32CubeIDE | ||
| * @brief Linker script for STM32G431KBTx Device from STM32G4 series | ||
| * 128Kbytes FLASH | ||
| * 32Kbytes RAM | ||
| * | ||
| * Set heap size, stack size and stack location according | ||
| * to application requirements. | ||
| * | ||
| * Set memory bank area and size if external memory is used | ||
| ****************************************************************************** | ||
| * @attention | ||
| * | ||
| * <h2><center>© Copyright (c) 2020 STMicroelectronics. | ||
| * All rights reserved.</center></h2> | ||
| * | ||
| * This software component is licensed by ST under BSD 3-Clause license, | ||
| * the "License"; You may not use this file except in compliance with the | ||
| * License. You may obtain a copy of the License at: | ||
| * opensource.org/licenses/BSD-3-Clause | ||
| * | ||
| ****************************************************************************** | ||
| */ | ||
|
|
||
| /* Entry Point */ | ||
| ENTRY(Reset_Handler) | ||
|
|
||
| /* Highest address of the user mode stack */ | ||
| _estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */ | ||
|
|
||
| _Min_Heap_Size = 0x200; /* required amount of heap */ | ||
| _Min_Stack_Size = 0x400; /* required amount of stack */ | ||
|
|
||
| /* Memories definition */ | ||
| MEMORY | ||
| { | ||
| RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 32K | ||
| FLASH (rx) : ORIGIN = 0x800C800, LENGTH = 48K | ||
| SHRD_MEM (rx) : ORIGIN = 0x800C000, LENGTH = 2K | ||
| } | ||
|
|
||
| /* Sections */ | ||
| SECTIONS | ||
| { | ||
| /* placing my boot flags section at given address: */ | ||
| .boot_flags : | ||
| { | ||
| KEEP(*(.boot_flags)) /* keep my variable even if not referenced */ | ||
| } > SHRD_MEM | ||
|
|
||
| /* The startup code into "FLASH" Rom type memory */ | ||
| .isr_vector : | ||
| { | ||
| . = ALIGN(4); | ||
| KEEP(*(.isr_vector)) /* Startup code */ | ||
| . = ALIGN(4); | ||
| } >FLASH | ||
|
|
||
| /* The program code and other data into "FLASH" Rom type memory */ | ||
| .text : | ||
| { | ||
| . = ALIGN(4); | ||
| *(.text) /* .text sections (code) */ | ||
| *(.text*) /* .text* sections (code) */ | ||
| *(.glue_7) /* glue arm to thumb code */ | ||
| *(.glue_7t) /* glue thumb to arm code */ | ||
| *(.eh_frame) | ||
|
|
||
| KEEP (*(.init)) | ||
| KEEP (*(.fini)) | ||
|
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||
| . = ALIGN(4); | ||
| _etext = .; /* define a global symbols at end of code */ | ||
| } >FLASH | ||
|
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||
| /* Constant data into "FLASH" Rom type memory */ | ||
| .rodata : | ||
| { | ||
| . = ALIGN(4); | ||
| *(.rodata) /* .rodata sections (constants, strings, etc.) */ | ||
| *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ | ||
| . = ALIGN(4); | ||
| } >FLASH | ||
|
|
||
| .ARM.extab : { | ||
| . = ALIGN(4); | ||
| *(.ARM.extab* .gnu.linkonce.armextab.*) | ||
| . = ALIGN(4); | ||
| } >FLASH | ||
|
|
||
| .ARM : { | ||
| . = ALIGN(4); | ||
| __exidx_start = .; | ||
| *(.ARM.exidx*) | ||
| __exidx_end = .; | ||
| . = ALIGN(4); | ||
| } >FLASH | ||
|
|
||
| .preinit_array : | ||
| { | ||
| . = ALIGN(4); | ||
| PROVIDE_HIDDEN (__preinit_array_start = .); | ||
| KEEP (*(.preinit_array*)) | ||
| PROVIDE_HIDDEN (__preinit_array_end = .); | ||
| . = ALIGN(4); | ||
| } >FLASH | ||
|
|
||
| .init_array : | ||
| { | ||
| . = ALIGN(4); | ||
| PROVIDE_HIDDEN (__init_array_start = .); | ||
| KEEP (*(SORT(.init_array.*))) | ||
| KEEP (*(.init_array*)) | ||
| PROVIDE_HIDDEN (__init_array_end = .); | ||
| . = ALIGN(4); | ||
| } >FLASH | ||
|
|
||
| .fini_array : | ||
| { | ||
| . = ALIGN(4); | ||
| PROVIDE_HIDDEN (__fini_array_start = .); | ||
| KEEP (*(SORT(.fini_array.*))) | ||
| KEEP (*(.fini_array*)) | ||
| PROVIDE_HIDDEN (__fini_array_end = .); | ||
| . = ALIGN(4); | ||
| } >FLASH | ||
|
|
||
| /* Used by the startup to initialize data */ | ||
| _sidata = LOADADDR(.data); | ||
|
|
||
| /* Initialized data sections into "RAM" Ram type memory */ | ||
| .data : | ||
| { | ||
| . = ALIGN(4); | ||
| _sdata = .; /* create a global symbol at data start */ | ||
| *(.data) /* .data sections */ | ||
| *(.data*) /* .data* sections */ | ||
|
|
||
| . = ALIGN(4); | ||
| _edata = .; /* define a global symbol at data end */ | ||
|
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||
| } >RAM AT> FLASH | ||
|
|
||
| /* Uninitialized data section into "RAM" Ram type memory */ | ||
| . = ALIGN(4); | ||
| .bss : | ||
| { | ||
| /* This is used by the startup in order to initialize the .bss section */ | ||
| _sbss = .; /* define a global symbol at bss start */ | ||
| __bss_start__ = _sbss; | ||
| *(.bss) | ||
| *(.bss*) | ||
| *(COMMON) | ||
|
|
||
| . = ALIGN(4); | ||
| _ebss = .; /* define a global symbol at bss end */ | ||
| __bss_end__ = _ebss; | ||
| } >RAM | ||
|
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||
| /* User_heap_stack section, used to check that there is enough "RAM" Ram type memory left */ | ||
| ._user_heap_stack : | ||
| { | ||
| . = ALIGN(8); | ||
| PROVIDE ( end = . ); | ||
| PROVIDE ( _end = . ); | ||
| . = . + _Min_Heap_Size; | ||
| . = . + _Min_Stack_Size; | ||
| . = ALIGN(8); | ||
| } >RAM | ||
|
|
||
| /* Remove information from the compiler libraries */ | ||
| /DISCARD/ : | ||
| { | ||
| libc.a ( * ) | ||
| libm.a ( * ) | ||
| libgcc.a ( * ) | ||
| } | ||
|
|
||
| .ARM.attributes 0 : { *(.ARM.attributes) } | ||
| } |
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