Flash offset for custom bootloader

[VitorBoss]

Recently I'm working on a project which will use sboot_stm32 encryption, the current problem is the linker script uses LD_FLASH_OFFSET but I can't set this flag from PlatformIO, I had tried put the file "platform.local.txt" with the build.flash_offset=0x2000 definition, the -DLD_FLASH_OFFSET=0x2000 on compilation flags and on file "build_opt.h" as the wiki says.

The problem is, don't matter what I do, the offset never get applied and the elf file always point to 0x08000000 as starting address.
What I'm missing? I dug the wiki with no luck

[fpistm]

We don't support pio. You should ask to their GitHub

[fpistm]

Hi @VitorBoss
Currently working on flash_offset, see #1993

You can use boards.local.txt feature:
https://arduino.github.io/arduino-cli/0.31/platform-specification/#boardslocaltxt

For your case, it should contains something like this, depending of your board:

GenF1.menu.pnum.GENERIC_F103C8TX.build.flash_offset=0x2000

And define VECT_TAB_OFFSET using build_opt.h

[VitorBoss]

Which IDE you used? Legacy 1.8.x or 2.x?

I had 1.8.13 since I last used it in 2020

[VitorBoss]

Forgive me if I didn't understood correctly, but those changes(very welcomed) don't change the linker offset right?

[fpistm]

Chande made in the PR will change also the linker offset.

[VitorBoss]

That is perfect, thank you very much for your support