On 05/16/17 03:57, Pavel Machek wrote: > On Sun 2017-03-12 16:38:02, Drew DeVault wrote: >> I'm in the research stage of making it so something to the effect of >> `make setconfig OPTION="CONFIG_E100E=y"` will work, bringing it up here >> for some discussion first. >> >> Digging into the kconfig code, this seems feasible, but complicated. A >> simple solver of some sort will be necessary to make the Depends expr >> true, and this tool would also have to hit up the Selects and Implies >> lines. >> >> I expect there will be edge cases that this tool can't cope with, and >> I'm okay with just letting that be the case. >> >> Any thoughts? > > You can prepend (or append?) desired config option to .config, then > run make oldconfig. And yes, script for automatically modifying > .config would be nice... as would be script to automatically do > "configuration bisect" (because some bugs are config dependend and > nasty).
tools/testing/ktest/ktest.pl has some support for config bisecting. (I have not tried it.) -- ~Randy
