The 12K-per-thread necessary on arm64 linux systems caused an
unnecessary 180K increase in RAM usage on the hibyos hosted ports. So
back off to the old size unless we know it was needed.
Change-Id: I1e25417433052027ae02a51903b0f5245819db44
This dir is suitable for stuff that doesn't fit the target tree, e.g. because
it also builds on hosted or otherwise. It also has a generic subfolder for
fallback C implementations so that not all archs need to provide asm files.
SOURCES should only contain "foo.c" where foo.c includes the specific
<arch>/foo.c files from the subdirs using the preprocessor. This way automatic
selection of asm versions or generic C verion is possible.
For the start, the thread support files are moved, since ASM threads can
be used on hosted platforms as well. Since core_sleep() remains platform
specific it's moved to the corresponding system.h headers.
Change-Id: Iebff272f3407a6eaafeb7656ceb0ae9eca3f7cb9