genode/repos/base-okl4
Norman Feske c450ddcb3d Disambiguate kernel-specific file names
This patch removes possible ambiguities with respect to the naming of
kernel-dependent binaries and libraries. It also removes the use of
kernel-specific global side effects from the build system. The reach of
kernel-specific peculiarities has thereby become limited to the actual
users of the respective 'syscall-<kernel>' libraries.

Kernel-specific build artifacts are no longer generated at magic places
within the build directory (like okl4's includes, or the L4 build
directories of L4/Fiasco and Fiasco.OC, or the build directories of
various kernels). Instead, such artifacts have been largely moved to the
libcache. E.g., the former '<build-dir>/l4/' build directory for the L4
build system resides at '<build-dir>/var/libcache/syscall-foc/build/'.
This way, the location is unique to the kernel. Note that various tools
are still generated somewhat arbitrarily under '<build-dir>/tool/' as
there is no proper formalism for building host tools yet.

As the result of this work, it has become possible to use a joint Genode
build directory that is usable with all kernels of a given hardware
platform. E.g., on x86_32, one can now seamlessly switch between linux,
nova, sel4, okl4, fiasco, foc, and pistachio without rebuilding any
components except for core, the kernel, the dynamic linker, and the timer
driver. At the current stage, such a build directory must still be
created manually. A change of the 'create_builddir' tool will follow to
make this feature easily available.

This patch also simplifies various 'run/boot_dir' plugins by removing
the option for an externally hosted kernel. This option remained unused
for many years now.

Issue #2190
2016-12-23 16:51:32 +01:00
..
contrib/generated Move repositories to 'repos/' subdirectory 2014-05-14 16:08:00 +02:00
doc base-okl4: remove unmaintained porting steps 2016-03-07 12:34:45 +01:00
etc Disambiguate kernel-specific file names 2016-12-23 16:51:32 +01:00
lib Disambiguate kernel-specific file names 2016-12-23 16:51:32 +01:00
patches okl4: declare read-write-lock as volatile 2014-11-20 16:39:16 +01:00
ports Adapt ports that moved away from googlecode 2016-08-30 17:17:19 +02:00
run Build dynamically linked executables by default 2016-12-14 11:22:27 +01:00
src Disambiguate kernel-specific file names 2016-12-23 16:51:32 +01:00
tool Move repositories to 'repos/' subdirectory 2014-05-14 16:08:00 +02:00
README base-okl4: remove unmaintained porting steps 2016-03-07 12:34:45 +01:00

This repository contains the implementation of Genode for the OKL4
kernel version 2.1.  For further information, please refer to the
following website:

:[http://genode.org/documentation/articles/genode-on-okl4 - Bringing Genode to OKL4]:
  This article explains the OKL4-specific porting work.