Hello,
You can inspire from one of the linker scripts generated by TouchGFX Designer starring from TBS board (in this case STM32H750I-DISCO board):
/*
******************************************************************************
**
** File : LinkerScript.ld
**
** Author : STM32CubeMX
**
** Abstract : Linker script for STM32H750XBHx series
** 128Kbytes FLASH and 1056Kbytes 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
**
** Distribution: The file is distributed “as is,” without any warranty
** of any kind.
**
*****************************************************************************
** @attention
**
** <h2><center>© COPYRIGHT(c) 2025 STMicroelectronics</center></h2>
**
** Redistribution and use in source and binary forms, with or without modification,
** are permitted provided that the following conditions are met:
** 1. Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright notice,
** this list of conditions and the following disclaimer in the documentation
** and/or other materials provided with the distribution.
** 3. Neither the name of STMicroelectronics nor the names of its contributors
** may be used to endorse or promote products derived from this software
** without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
*****************************************************************************
*/
/* Entry Point */
ENTRY(Reset_Handler)
/* Specify the memory areas */
MEMORY
{
DTCMRAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
ITCMRAM (xrw) : ORIGIN = 0x00000000, LENGTH = 64K
RAM_D1 (xrw) : ORIGIN = 0x24000000, LENGTH = 512K
RAM_D2 (xrw) : ORIGIN = 0x30000000, LENGTH = 288K
RAM_D3 (xrw) : ORIGIN = 0x38000000, LENGTH = 64K
SDRAM (xrw) : ORIGIN = 0xD0000000, LENGTH = 8M
FLASH (rx) : ORIGIN = 0x90000000, LENGTH = 2048K
ASSETS_FLASH (r) : ORIGIN = 0x90200000, LENGTH = 126M
BOOTLOADER (xrw) : ORIGIN = 0x08000000, LENGTH = 128k
}
/* Highest address of the user mode stack */
_estack = ORIGIN(DTCMRAM) + LENGTH(DTCMRAM); /* end of RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x1000; /* required amount of heap */
_Min_Stack_Size = 0x1000; /* required amount of stack */
/* Link ISR vectors */
SECTIONS
{
/* The startup code into "FLASH" Rom type memory */
.isr_vector :
{
__ICFEDIT_intvec_start__ = .;
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH
}
/* Define specific placement of memory areas */
SECTIONS
{
TextFlashSection :
{
*(TextFlashSection TextFlashSection.*)
*(.gnu.linkonce.r.*)
. = ALIGN(0x4);
} >ASSETS_FLASH
FontFlashSection :
{
*(FontFlashSection FontFlashSection.*)
*(.gnu.linkonce.r.*)
. = ALIGN(0x4);
} >ASSETS_FLASH
ExtFlashSection :
{
*(ExtFlashSection ExtFlashSection.*)
*(.gnu.linkonce.r.*)
. = ALIGN(0x4);
} >ASSETS_FLASH
}
/* Define output sections */
SECTIONS
{
.bootloader :
{
. = ALIGN(4);
ExtMem_Boot/bootloader.o(*)
} >BOOTLOADER
/* The program code and other data goes into FLASH */
.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))
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >FLASH
/* Constant data goes into FLASH */
.rodata :
{
. = ALIGN(4);
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
} >FLASH
.ARM.extab (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
*(.ARM.extab* .gnu.linkonce.armextab.*)
. = ALIGN(4);
} >FLASH
.ARM (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
. = ALIGN(4);
} >FLASH
.preinit_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
. = ALIGN(4);
} >FLASH
.init_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
. = ALIGN(4);
} >FLASH
.fini_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = 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 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 */
*(.RamFunc) /* .RamFunc sections */
*(.RamFunc*) /* .RamFunc* sections */
. = ALIGN(4);
} >RAM_D1 AT> FLASH
/* Initialized TLS data section */
.tdata : ALIGN(4)
{
*(.tdata .tdata.* .gnu.linkonce.td.*)
. = ALIGN(4);
_edata = .; /* define a global symbol at data end */
PROVIDE(__data_end = .);
PROVIDE(__tdata_end = .);
} >RAM_D1 AT> FLASH
PROVIDE( __tdata_start = ADDR(.tdata) );
PROVIDE( __tdata_size = __tdata_end - __tdata_start );
PROVIDE( __data_start = ADDR(.data) );
PROVIDE( __data_size = __data_end - __data_start );
PROVIDE( __tdata_source = LOADADDR(.tdata) );
PROVIDE( __tdata_source_end = LOADADDR(.tdata) + SIZEOF(.tdata) );
PROVIDE( __tdata_source_size = __tdata_source_end - __tdata_source );
PROVIDE( __data_source = LOADADDR(.data) );
PROVIDE( __data_source_end = __tdata_source_end );
PROVIDE( __data_source_size = __data_source_end - __data_source );
/* Uninitialized data section */
.tbss (NOLOAD) : ALIGN(4)
{
/* This is used by the startup in order to initialize the .bss secion */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.tbss .tbss.*)
. = ALIGN(4);
PROVIDE( __tbss_end = . );
} >RAM_D1
PROVIDE( __tbss_start = ADDR(.tbss) );
PROVIDE( __tbss_size = __tbss_end - __tbss_start );
PROVIDE( __tbss_offset = ADDR(.tbss) - ADDR(.tdata) );
PROVIDE( __tls_base = __tdata_start );
PROVIDE( __tls_end = __tbss_end );
PROVIDE( __tls_size = __tls_end - __tls_base );
PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
PROVIDE( __tls_size_align = (__tls_size + __tls_align - 1) & ~(__tls_align - 1) );
PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
PROVIDE( __arm64_tls_tcb_offset = MAX(16, __tls_align) );
.bss (NOLOAD) : ALIGN(4)
{
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
PROVIDE( __bss_end = .);
} >RAM_D1
PROVIDE( __non_tls_bss_start = ADDR(.bss) );
PROVIDE( __bss_start = __tbss_start );
PROVIDE( __bss_size = __bss_end - __bss_start );
/* User_heap_stack section, used to check that there is enough RAM left */
._user_heap_stack (NOLOAD) :
{
. = ALIGN(8);
PROVIDE ( end = . );
PROVIDE ( _end = . );
. = . + _Min_Heap_Size;
. = . + _Min_Stack_Size;
. = ALIGN(8);
} >DTCMRAM
/* Remove information from the standard libraries */
/DISCARD/ :
{
libc.a:* ( * )
libm.a:* ( * )
libgcc.a:* ( * )
}
BmpCacheSection (NOLOAD) :
{
*(BmpCacheSection)
} >SDRAM
TouchGFX_Framebuffer (NOLOAD) :
{
*(TouchGFX_Framebuffer)
} >SDRAM
TouchGFX_Framebuffer1 (NOLOAD) :
{
*(TouchGFX_Framebuffer1)
} >SDRAM
TouchGFX_Framebuffer2 (NOLOAD) :
{
*(TouchGFX_Framebuffer2)
} >SDRAM
Video_RGB_Buffer (NOLOAD) :
{
*(Video_RGB_Buffer)
} >SDRAM
}
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