can kprobes be modular?

[Roland McGrath]

I was reading over some things, and it occurred to me that kprobes ought to
be a loadable kernel module.  I don't have any special motivation for this.
It just seems like an unclean situation that it can't be a module now.
Perhaps many kernels will want to build it in anyway, but I can't see why
it isn't a module.  It's not very big, but neither are many other things
that are used much more often and are built as modules.

The #ifdef CONFIG_KPROBES sections in e.g. arch/i386/kernel/traps.c look to
me like things that ought to be enabled unconditionally, so kprobes or any
other module could use them.  Things like register_page_fault_notifier
ought to just be enabled and exported by default.

Thoughts?


Thanks,
Roland