On Thu, Jul 13, 2023 at 1:13 PM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > > > > On 7/13/23 09:36, Jim Cromie wrote: > > Add some basic info on classmap usage and api > > > > Signed-off-by: Jim Cromie <jim.cromie@xxxxxxxxx> > > --- > > .../admin-guide/dynamic-debug-howto.rst | 64 ++++++++++++++++++- > > 1 file changed, 63 insertions(+), 1 deletion(-) > > > > diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst > > index 8dc668cc1216..878750ce8c1d 100644 > > --- a/Documentation/admin-guide/dynamic-debug-howto.rst > > +++ b/Documentation/admin-guide/dynamic-debug-howto.rst > > > @@ -374,3 +373,66 @@ just a shortcut for ``print_hex_dump(KERN_DEBUG)``. > > For ``print_hex_dump_debug()``/``print_hex_dump_bytes()``, format string is > > its ``prefix_str`` argument, if it is constant string; or ``hexdump`` > > in case ``prefix_str`` is built dynamically. > > + > > +Dynamic Debug classmaps > > +======================= > > + > > +Dyndbg generally selects *prdbg* callsites using structural info: > > +module, file, function, line. Using classmaps, user modules can > > +organize/select pr_debug()s as they like. > > + > > +- classes coordinates/spans multiple modules > > +- complements the mod,file,func attrs > > +- keeps pr_debug's 0-off-cost JUMP_LABEL goodness > > +- isolates from other class'd and un-class'd pr_debugs() > > + (one doesnt mix 2 clients bank accounts) > > doesn't > thanks Randy, got this, and the rest.
