On Wed, 2020-06-17 at 10:25 -0600, Jim Cromie wrote: > 1. Add a user-flag [u] which works like the [pfmlt] flags, but has no > effect on callsite behavior; it allows incremental marking of > arbitrary sets of callsites. > > 2. Add [PFMLTU] flags, which negate their counterparts; P===!p etc. > And in ddebug_read_flags(): > current code does: [pfmltu_] -> flags > copy it to: [PFMLTU_] -> mask > > also disallow both of a pair: ie no 'pP', no true & false. > > 3. Add filtering ops into ddebug_change(), right after all the > callsite-property selections are complete. These filter on the > callsite's current flagstate before applying modflags. > > Why ? > > The u-flag & filter flags > > The 'u' flag lets the user assemble an arbitary set of callsites. > Then using filter flags, user can activate the 'u' callsite set. > > #> echo 'file foo.c +u; file bar.c +u' > control # and repeat > #> echo 'u+p' > control > > Of course, you can continue to just activate your set without ever > marking it 1st, but you could trivially add the markup as you go, then > be able to use it as a constraint later, to undo or modify your set. Does this set selection also allow for selection by increasing decimal level? Can sites be enabled for a value less than x?
