Region 'Flash' overflowed when linking bootloader_secure debug project

[CurtisHx]

I'm using GCC and trying to build the debug bootloader_secure project in SDK12. No changes at all to the source code. The linker is erroring with

section '.text'will not fit in region 'FLASH'
region 'FLASH overflowed by 1332 bytes.

What do I need to do to fix this?

[Vidar Berg]

Hi, which version of GCC are you using? I can't reproduce this linker error here with the 4.9 2015q3 release.

[CurtisHx]

GCC v 5.3. It's the toolchain that came with VisualGDB.

[Vidar Berg]

Is the size of your uECC lib about the same as the one I have here:

I wouldn't expect any significant difference in code size with different toolchain versions as there is no code optimization in this project, but I still think it may be worth trying the toolchain from launchpad.net/.../ download to narrow down the problem.

Edit 28/10:

Just assumed the debug project would build without optimization, but it actually requires it to be built with -Os (default option in makefile). You can allocate more flash for the bootlaoder if you want to debug without optimization as explained here: devzone.nordicsemi.com/.../

[emdi]

Which optimization level are you using? Have you tried optimizing for size?

[CurtisHx]

I'm compiling with -Os. I haven't made any changes to the makefile. My uEEC lib size is dec 9622 (0x2596)