ADHD: Facilitate sorting of linker sets
Details
It is desirable to have an ordering applied to the threads in gavd.
One reason for this might be to ensure that the audio system is set
to the factory default at power-on, or to ensure that a 'work list'
management system is ready-to-use before any other threads are
instantiated.
To be able to provide priority to threads during startup, we need to
be able to order the set of thread descriptors, which is a linker
set.
This change adds better comments to the linker set interface, and
adds 'LINKERSET_SORT'.
To add this functionality, LINKERSET_ADD_ITEM had to be changed to
remove the const-ness on the data; without this removal, the
linker set is put into R/O memory.
Testing
Built chromiumos for tegra2_aebl
Built chromiumos for x86-mario (compilation only, gavd is a nop on x86)
Booted on tegra2_aebl, observed that the daemon runs correctly.
BUG=chromium-os:19558
TEST=See above.
Change-Id: Id119e4ad9392a1db7e1f943e341c5b0558cb8f77
Signed-off-by: Taylor Hutt <thutt@chromium.org>
1 file changed
