How do I override the linker script file?

BHAudio · July 18, 2023, 1:22am

Hello,

I have created a custom linker script for my project to slightly adjust the memory usage when using the Daisy Bootloader. It is based off of the Daisy xxxxx_SRAM.LDS file.

I would like to modify my Makefile to use my custom linker script.

Currently I have tried:
LDFLAGS += -T myscript.ld

This does not seem to override the file that is used. Is there a better way to do this?

Thank you for your time and help,
Brett

polyclash · July 18, 2023, 8:00am

This is the makefile section that set the app type.

github.com

electro-smith/libDaisy/blob/master/core/Makefile#L195-L235


      
          #######################################
          # Boot Management
          #######################################
          
          INTERNAL_ADDRESS = 0x08000000
          QSPI_ADDRESS ?= 0x90040000
          
          # For the time being, we'll keep the Daisy Bootloader's PID as df11
          # DAISY_PID = a360
          DAISY_PID = df11
          STM_PID = df11
          
          BOOT_BIN ?= $(wildcard $(SYSTEM_FILES_DIR)/dsy_bootloader*)
          APP_TYPE ?= BOOT_NONE
          
          ifeq ($(APP_TYPE), BOOT_NONE)
          
          LDSCRIPT ?= $(SYSTEM_FILES_DIR)/STM32H750IB_flash.lds
          USBPID = $(STM_PID)
          FLASH_ADDRESS ?= $(INTERNAL_ADDRESS)

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BHAudio · July 18, 2023, 1:07pm

@polyclash ,

Thank you,

I’ll use LDSCRIPT and set it my Makefile as then the below one should not be used.

LDSCRIPT ?= $(SYSTEM_FILES_DIR)/STM32H750IB_flash.lds

Thank you for the help, much appreciated.