rewrite base linker script
This commit is contained in:
Conor Patrick
Nicolas Stalder
parent
44f96f5843
commit
f5ff6a11f0
@ -1,202 +1,74 @@
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/*
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/* Copyright 2019 SoloKeys Developers */
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*****************************************************************************
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/* */
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**
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/* Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or */
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/* http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or */
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/* http://opensource.org/licenses/MIT>, at your option. This file may not be */
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/* copied, modified, or distributed except according to those terms. */
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** File : LinkerScript.ld
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**
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** Abstract : Linker script for STM32L432KCUx Device with
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** 256KByte FLASH, 64KByte RAM
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**
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** Set heap size, stack size and stack location according
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** to application requirements.
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**
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** Set memory bank area and size if external memory is used.
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**
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** Target : STMicroelectronics STM32
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**
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**
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** Distribution: The file is distributed as is, without any warranty
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** of any kind.
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**
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** (c)Copyright Ac6.
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** You may use this file as-is or modify it according to the needs of your
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** project. Distribution of this file (unmodified or modified) is not
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** permitted. Ac6 permit registered System Workbench for MCU users the
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** rights to distribute the assembled, compiled & linked contents of this
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** file as part of an application binary file, provided that it is built
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** using the System Workbench for MCU toolchain.
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**
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*****************************************************************************
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*/
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/* Entry Point */
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ENTRY(Reset_Handler)
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ENTRY(Reset_Handler)
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/* Highest address of the user mode stack */
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/* End of RAM */
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_estack = 0x2000c000; /* end of RAM */
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_estack = 0x2000c000;
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/* Generate a link error if heap and stack don't fit into RAM */
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_Min_Heap_Size = 0x200; /* required amount of heap */
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_MIN_STACK_SIZE = 0x400;
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_Min_Stack_Size = 0x400; /* required amount of stack */
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/* Specify the memory areas */
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MEMORY
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MEMORY
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{
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{
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/* First 20 KB is bootloader */
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flash (rx) : ORIGIN = 0x08005000, LENGTH = 190K
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FLASH (rx) : ORIGIN = 0x08005000, LENGTH = 198K-8 /* Leave out 38 Kb at end for data */
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ram (xrw) : ORIGIN = 0x20000000, LENGTH = 48K
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RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 48K
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sram2 (rw) : ORIGIN = 0x10000000, LENGTH = 16K
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SRAM2 (rw) : ORIGIN = 0x10000000, LENGTH = 16K
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}
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}
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/* Define output sections */
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SECTIONS
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SECTIONS
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{
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{
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/* The startup code goes first into FLASH */
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.isr_vector :
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.isr_vector :
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{
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{
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. = ALIGN(8);
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. = ALIGN(8);
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KEEP(*(.isr_vector)) /* Startup code */
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KEEP(*(.isr_vector))
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. = ALIGN(8);
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. = ALIGN(8);
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} >FLASH
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} >flash
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/* The program code and other data goes into FLASH */
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.text :
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.text :
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{
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{
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. = ALIGN(8);
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. = ALIGN(8);
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*(.text) /* .text sections (code) */
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*(.text*)
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*(.text*) /* .text* sections (code) */
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*(.rodata*)
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*(.glue_7) /* glue arm to thumb code */
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*(.glue_7t) /* glue thumb to arm code */
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*(.eh_frame)
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KEEP(*(.init))
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KEEP(*(.init))
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KEEP (*(.fini))
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KEEP(*(.finit))
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. = ALIGN(8);
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_etext = .;
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} >flash
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. = ALIGN(8);
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_etext = .; /* define a global symbols at end of code */
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} >FLASH
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/* Constant data goes into FLASH */
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.rodata :
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{
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. = ALIGN(8);
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*(.rodata) /* .rodata sections (constants, strings, etc.) */
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*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
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. = ALIGN(8);
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} >FLASH
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.ARM.extab :
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{
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. = ALIGN(8);
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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. = ALIGN(8);
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} >FLASH
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.ARM : {
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. = ALIGN(8);
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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. = ALIGN(8);
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} >FLASH
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.preinit_array :
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{
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. = ALIGN(8);
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array*))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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. = ALIGN(8);
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} >FLASH
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.init_array :
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{
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. = ALIGN(8);
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array*))
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PROVIDE_HIDDEN (__init_array_end = .);
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. = ALIGN(8);
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} >FLASH
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.fini_array :
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{
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. = ALIGN(8);
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(SORT(.fini_array.*)))
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KEEP (*(.fini_array*))
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PROVIDE_HIDDEN (__fini_array_end = .);
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. = ALIGN(8);
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} >FLASH
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/* used by the startup to initialize data */
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_sidata = LOADADDR(.data);
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_sidata = LOADADDR(.data);
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/* Initialized data sections goes into RAM, load LMA copy after code */
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.data :
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.data :
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{
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{
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. = ALIGN(8);
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. = ALIGN(8);
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_sdata = .; /* create a global symbol at data start */
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_sdata = .;
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*(.data) /* .data sections */
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*(.data*)
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*(.data*) /* .data* sections */
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. = ALIGN(8);
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. = ALIGN(8);
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_edata = .; /* define a global symbol at data end */
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_edata = .;
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} >RAM AT> FLASH
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} >ram AT> flash
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_sisram2 = LOADADDR(.sram2);
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/* CCM-RAM section
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*
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* IMPORTANT NOTE!
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* If initialized variables will be placed in this section,
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* the startup code needs to be modified to copy the init-values.
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*/
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.sram2 :
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{
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. = ALIGN(8);
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_ssram2 = .; /* create a global symbol at sram2 start */
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*(.sram2)
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*(.sram2*)
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. = ALIGN(8);
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_esram2 = .; /* create a global symbol at sram2 end */
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} >SRAM2 AT> FLASH
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/* Uninitialized data section */
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. = ALIGN(4);
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.bss :
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.bss :
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{
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{
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/* This is used by the startup in order to initialize the .bss secion */
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. = ALIGN(4);
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_sbss = .; /* define a global symbol at bss start */
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_sbss = .;
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__bss_start__ = _sbss;
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__bss_start__ = _sbss;
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*(.bss)
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*(.bss*)
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*(.bss*)
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*(COMMON)
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*(COMMON)
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. = ALIGN(4);
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. = ALIGN(4);
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_ebss = .; /* define a global symbol at bss end */
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_ebss = .;
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__bss_end__ = _ebss;
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__bss_end__ = _ebss;
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} >RAM
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} > ram
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/* User_heap_stack section, used to check that there is enough RAM left */
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._stack :
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._user_heap_stack :
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{
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{
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. = ALIGN(8);
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. = ALIGN(8);
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PROVIDE ( end = . );
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end = .;
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PROVIDE ( _end = . );
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_end = .;
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. = . + _Min_Heap_Size;
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. = . + _MIN_STACK_SIZE;
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. = . + _Min_Stack_Size;
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. = ALIGN(8);
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. = ALIGN(8);
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} >RAM
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} > ram
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/* Remove information from the standard libraries */
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/DISCARD/ :
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{
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libc.a ( * )
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libm.a ( * )
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libgcc.a ( * )
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}
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.ARM.attributes 0 : { *(.ARM.attributes) }
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}
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}
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