Change linker script and startup code.

This is my own code from my template. It is much cleaner than the old code.
This commit is contained in:
2020-08-21 23:25:03 +02:00
parent 95de84fa85
commit ec117e0627
14 changed files with 493 additions and 738 deletions

View File

@@ -1,189 +1,157 @@
/*
*****************************************************************************
**
** File : stm32_flash.ld
**
** Abstract : Linker script for STM32F407VG Device with
** 1024KByte FLASH, 192KByte RAM
**
** Set heap size, stack size and stack location according
** to application requirements.
**
** Set memory bank area and size if external memory is used.
**
** Target : STMicroelectronics STM32
**
** Environment : Atollic TrueSTUDIO(R)
**
** Distribution: The file is distributed <20>as is,<2C> without any warranty
** of any kind.
**
** (c)Copyright Atollic AB.
** You may use this file as-is or modify it according to the needs of your
** project. Distribution of this file (unmodified or modified) is not
** permitted. Atollic AB permit registered Atollic TrueSTUDIO(R) users the
** rights to distribute the assembled, compiled & linked contents of this
** file as part of an application binary file, provided that it is built
** using the Atollic TrueSTUDIO(R) toolchain.
**
*****************************************************************************
*/
* STM32F407VE Linkerscript for FLASH normal flash code execution
* Copyright (C) 2017 Mario H<>ttel <mario.huettel@gmx.net>
*
* This file is part of 'STM32F407 code template'.
*
* It is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2 of the License.
*
* This code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this template. If not, see <http://www.gnu.org/licenses/>.
* --------------------------------------------------------------------
* FLASH: 512K
* RAM: 128K
* CCM RAM: 64L
* FPU: fpv4-sp-d16
*
/* Entry Point */
/* USER PARAMETERS */
__ld_stack_size = 0x3000;
__ld_heap_size = 0x2100;
/* END OF USER PARAMETERS */
ENTRY(Reset_Handler)
__ld_top_of_stack = 0x20020000; /* One byte above the end of the SRAM. Stack is pre-decrewmenting, so this is okay */
/* Highest address of the user mode stack */
_estack = 0x20020000; /* end of 128K RAM on AHB bus*/
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x2100; /* required amount of heap (DEFAULT 0) */
_Min_Stack_Size = 0x3000 ; /* required amount of stack */
/* recommended min stack size for printf=0x2000, orig = 0x400 */
/* Specify the memory areas */
/* Available memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
CCM (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K
FLASH (xr) : ORIGIN = 0x08000000, LENGTH = 512K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
CCM (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
}
/* Define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH
.vectors :
{
. = ALIGN(4);
KEEP(*(.vectors))
. = ALIGN(4);
} >FLASH
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)
KEEP(*(.init)) /* Constructors */
KEEP(*(.fini)) /* Destructors */
} >FLASH
.ARM.extab :
{
*(.ARM.extab* .gnu.linkonce.armextab.*)
} >FLASH
.ARM :
{
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >FLASH
/* Constructor/Destructor tables */
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >FLASH
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >FLASH
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(.fini_array*))
KEEP (*(SORT(.fini_array.*)))
PROVIDE_HIDDEN (__fini_array_end = .);
} >FLASH
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)
/* Initialized CCM data */
__ld_load_ccm_data = LOADADDR(.ccmdata);
.ccmdata :
{
. = ALIGN(4);
__ld_sdata_ccm = .;
*(.ccm.data)
*(.ccm.data*)
. = ALIGN(4);
__ld_edata_ccm = .;
} >CCM AT> FLASH
.ccmbss (NOLOAD) :
{
. = ALIGN(4);
__ld_sbss_ccm = .;
*(.ccm.bss)
*(.ccm.bss*)
. = ALIGN(4);
__ld_ebss_ccm = .;
} >CCM
KEEP (*(.init))
KEEP (*(.fini))
/* Initialized Data */
__ld_load_data = LOADADDR(.data);
.data :
{
. = ALIGN(4);
__ld_sdata = .;
*(.data)
*(.data*)
. = ALIGN(4);
__ld_edata = .;
} >RAM AT> FLASH
/* Uninitialized static data */
.bss (NOLOAD) :
{
. = ALIGN(4);
__ld_sbss = .;
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
__ld_ebss = .;
} >RAM
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
_exit = .;
} >FLASH
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
.ARM : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >FLASH
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >FLASH
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >FLASH
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(.fini_array*))
KEEP (*(SORT(.fini_array.*)))
PROVIDE_HIDDEN (__fini_array_end = .);
} >FLASH
_siccmram = LOADADDR(.ccmram);
/* CCM-RAM section */
.ccmram (NOLOAD):
{
. = ALIGN(4);
_sccmram = .; /* create a global symbol at ccmram start */
*(.ccmram)
*(.ccmram*)
. = ALIGN(4);
_eccmram = .; /* create a global symbol at ccmram end */
} >CCM
_sidata = LOADADDR(.data);
/* Initialized data sections goes into RAM, load LMA copy after code */
.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 */
} >RAM AT> FLASH
/* Uninitialized data section */
. = ALIGN(4);
.bss (NOLOAD):
{
/* This is used by the startup in order to initialize the .bss secion */
_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
/* User_heap_stack section, used to check that there is enough RAM left */
._user_heap_stack (NOLOAD):
{
. = ALIGN(8);
PROVIDE (heap_low = .); /* for _sbrk */
PROVIDE ( end = . );
PROVIDE ( _end = . );
. = . + _Min_Heap_Size;
PROVIDE (heap_top = .); /* for _sbrk */
. = . + _Min_Stack_Size;
. = ALIGN(8);
} >RAM
/* MEMORY_bank1 section, code must be located here explicitly */
/* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */
.memory_b1_text :
{
*(.mb1text) /* .mb1text sections (code) */
*(.mb1text*) /* .mb1text* sections (code) */
*(.mb1rodata) /* read-only data (constants) */
*(.mb1rodata*)
} >MEMORY_B1
/* Remove information from the standard libraries */
/*/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}*/
.ARM.attributes 0 : { *(.ARM.attributes) }
.heap_stack (NOLOAD) :
{
. = ALIGN(4);
__ld_sheap = .;
. = . + __ld_heap_size;
__ld_eheap = .;
. = . + __ld_stack_size;
. = ALIGN(4);
} >RAM
}