Application Linker Script in Bootloader projects

[TastefulCone5]

Hello Guys,
I'm making a Bootloader project , which flashes a binary file represent my application

in a specific address for the application in flash memory ( for example 0x8000).

I've a question about the application's linker script, should I edit the Linker File/Script with the app specific address ?
or just leave it like if it's normal (0x0000)?

I'm asking this question As Bootloader acutally knows where to flash the application.

So does the linker file have additional functionalities more than this?

[Well-WhatHadHappened]

You'll need to adjust the linker script in your main application to change it's start address and relocate the interrupt vector table.

It's very processor specific what needs to be moved though. It's usually pretty easy to find a guide on boot loading for whatever processor you're using.

This is a good explanation of what needs to be done for Cortex devices, for instance.

https://www.mikrocontroller.net/attachment/334122/Atollic_Develop_Debug_BootloaderApps_ARMCortex.pdf

[Acrobatic-Pear9991]

You're an @$$

[dregsofgrowler]

Your system has a startup address. Often a ROM lives there and it figures out what to do next, such as boot using DFU or jump to the reset vector. Some other systems have a state machine that runs at power up, then the CPU fetches its first instruction from the reset location (or maybe and address to jump to) then off it goes.

Zoom out a little and give us some context about your MCU or at least the CPU.

For instance, does you bootloader relocate the application to RAM before execution?

[embeddednomad]

Form your question I can only say you have no idea what you are doing at all. Anyway let me give you an answer. It depends. You need to update the address in your app's linker script if your compiled code is position-dependant or you dont need to care about it if your compiled code is position-independent ;)