Change how vendor hooks are instantiated to promote
more complete structure definition in the ABI XML
description without complicating hook definition for
partners.
We don't want to force partners to include all
headers as part of the hook definition in include/trace/hooks/
since that causes extra headers to be included in
source files that runs the risk of changing visibility
resulting in CRC changes to KMI symbols. Instead continue
the practice of using forward declarations in the hook
header files.
Instead of instantiating all hook tracepoints globally in
drivers/android/vendor_hooks.c, use subsystem-specific
vendor_hooks.c if inclusion of subsystem-specific
header files is required. This avoids namespace collisions
between internal header files and limits the exposure
to the internal headers to the instantiation, not the
call sites.
In this patch, all of the scheduler related hooks are
instantiated in kernel/sched/vendor_hooks.c which can
cleanly include scheduler-related header files to
provide full type visibility.
Bug: 233047575
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: Ife5a66c2968de73e3f6d05840411310611e2e175
b6dace455e