Hello Everyone, 

This is my forst post.... 
We are creating a project based on Teensy 4.1 and using visual micro as our development platform.

It so happens that we are in need to create a tiny bootloader that verifies the integrity of application before jumping.

We did changes to linker file and got the proof of concept working. 

But now I am in a situation where I want to use modified linker file to build application if it is meant for bootloader (Lets call it release_for_bootloader).
Otherwise for my development and debugging purposes I want to use the original loader (Lets call it debug).

The way I have been able to use my custom linker file is to create a Board.txt and then compile.

My board.txt looks like

build.flags.ld=-Wl,--gc-sections,--relax "-T{build.core.path}/myCustomLinker.ld"
" {build.flags.optimize} {build.flags.ld} {build.flags.ldspecs} {build.flags.cpu} -o "{build.path}/{build.project_name}.elf" {object_files} "{build.path}/{archive_file}" "-L{build.path}" {build.flags.libs}``
 

The issue that I am facing is that, the "Board.txt" is used in all project configurations.

Is there any workaround or any other ideas that could work.

Thanks for reading

Thanks Simon.

That's a very good idea... Will try it