[fbkr]

I, along with everyone in the embedded space, have been using separate function sections forever for --gc-sections and I would be very surprised if they really cause any bloat and duplication at runtime. Do you mean bloat for intermediate files?

[josefx]

It may be limited to intermediate files, I assumed that the downside would be bigger since it is not a default and the description mentioned that some things may not be merged as well.