More work towards hybrid support

* All packaging architecture dependent variables do now have a
respective suffix and are set up for each configured packaging
architecture, save for the kernel and boot loader variables, which
are still only set up for the primary architecture.
For convenience TARGET_PACKAGING_ARCH, TARGET_ARCH, TARGET_LIBSUPC++,
and TARGET_LIBSTDC++ are set to the respective values for the primary
packaging architecture by default.
* Introduce a set of MultiArch* rules to help with building targets for
multiple packaging architectures. Generally the respective targets are
(additionally) gristed with the packaging architecture. For libraries
the additional grist is usually omitted for the primary architecture
(e.g. libroot.so and <x86>libroot.so for x86_gcc2/x86 hybrid), so that
Jamfiles for targets built only for the primary architecture don't
need to be changed.
* Add multi-arch build support for all targets needed for the stage 1
cross devel package as well as for libbe (untested).

* Added a framework for unit tests in the kernel. The beast is implemented as
a driver which publishes a device as "/dev/kernel_unit_tests". Commands
can be issued by writing to the device (e.g.
"echo help > /dev/kernel_unit_tests"), output is written to serial port/
syslog.
* Added a few tests for rw_lock.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34827 a95241bf-73f2-0310-859d-f6bbb57e9c96

More work towards hybrid support

* All packaging architecture dependent variables do now have a
respective suffix and are set up for each configured packaging
architecture, save for the kernel and boot loader variables, which
are still only set up for the primary architecture.
For convenience TARGET_PACKAGING_ARCH, TARGET_ARCH, TARGET_LIBSUPC++,
and TARGET_LIBSTDC++ are set to the respective values for the primary
packaging architecture by default.
* Introduce a set of MultiArch* rules to help with building targets for
multiple packaging architectures. Generally the respective targets are
(additionally) gristed with the packaging architecture. For libraries
the additional grist is usually omitted for the primary architecture
(e.g. libroot.so and <x86>libroot.so for x86_gcc2/x86 hybrid), so that
Jamfiles for targets built only for the primary architecture don't
need to be changed.
* Add multi-arch build support for all targets needed for the stage 1
cross devel package as well as for libbe (untested).

* Added a framework for unit tests in the kernel. The beast is implemented as
a driver which publishes a device as "/dev/kernel_unit_tests". Commands
can be issued by writing to the device (e.g.
"echo help > /dev/kernel_unit_tests"), output is written to serial port/
syslog.
* Added a few tests for rw_lock.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34827 a95241bf-73f2-0310-859d-f6bbb57e9c96