[coreboot-gerrit] Change in coreboot[master]: cbfstool: Add vboot callback function vb2ex_printf()

[Julius Werner (Code Review)]

Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/39390 )

Change subject: cbfstool: Add vboot callback function vb2ex_printf()
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Patch Set 3: Code-Review-1

Actually, I think the real problem here is different. vboot already solves this problem by containing stubs for its own callbacks when built for non-firmware use (including this one). The real problem is that cbfstool doesn't actually build the vboot library, it just cherry-picks a few random files and hopes that these files will continue to work standalone without any dependencies. That's pretty brittle and I think we would be better served by changing Makefiles so that we always build a HOSTCC version of the vboot library when building any host utilities and then link against that.