We can expand the list of supported musl architectures by
letting libucontext provide required context API's.
Use the following table to determine which architectures require
libucontext for BR2_PACKAGE_LIBUNWIND_MUSL_CONTEXT_REQUIRED:
https://github.com/libunwind/libunwind/tree/v1.6.2#libc-requirements
Enable BR2_PACKAGE_LIBUNWIND_ARCH_SUPPORTS if we have
BR2_PACKAGE_LIBUCONTEXT_ARCH_SUPPORTS or if context is not required
by checking for !BR2_PACKAGE_LIBUNWIND_MUSL_CONTEXT_REQUIRED.
Select BR2_PACKAGE_LIBUCONTEXT when selecting BR2_PACKAGE_LIBUNWIND
if we have BR2_PACKAGE_LIBUNWIND_MUSL_CONTEXT_REQUIRED.
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
6ea2a27f90