Clean up base-library structure

This patch moves the base library from src/base to src/lib/base,
flattens the library-internal directory structure, and moves the common
parts of the library-description files to base/lib/mk/base.inc and
base/lib/mk/base-common.inc.

Furthermore, the patch fixes a few cosmetic issues (whitespace and
comments only) that I encountered while browsing the result.

Fixes #1952

repos/base-foc/lib/mk/base-common.inc

@@ -4,34 +4,11 @@
 # \date   2013-02-14
 #
 
-LIBS += cxx syscall startup
+include $(BASE_DIR)/lib/mk/base-common.inc
 
-SRC_CC += ipc/ipc.cc
-SRC_CC += avl_tree/avl_tree.cc
-SRC_CC += allocator/slab.cc
-SRC_CC += allocator/allocator_avl.cc
-SRC_CC += heap/heap.cc heap/sliced_heap.cc
-SRC_CC += console/console.cc
-SRC_CC += child/child.cc
-SRC_CC += child/process.cc
-SRC_CC += elf/elf_binary.cc
-SRC_CC += lock/lock.cc
-SRC_CC += env/spin_lock.cc env/cap_map.cc
-SRC_CC += signal/signal.cc signal/common.cc signal/platform.cc
-SRC_CC += server/server.cc server/common.cc
-SRC_CC += thread/thread.cc thread/thread_bootstrap.cc thread/trace.cc
-SRC_CC += thread/myself.cc
-SRC_CC += thread/stack_allocator.cc
-SRC_CC += thread/thread_utcb.cc
-SRC_CC += sleep.cc
-SRC_CC += region_map_client.cc
-SRC_CC += rm_session_client.cc
-SRC_CC += entrypoint/entrypoint.cc
-SRC_CC += component/component.cc
+LIBS += syscall startup
 
-INC_DIR += $(REP_DIR)/src/include $(BASE_DIR)/src/include
-
-vpath %.cc $(REP_DIR)/src/base
-vpath %.cc $(BASE_DIR)/src/base
-
-# vi: set ft=make :
+SRC_CC += spin_lock.cc cap_map.cc
+SRC_CC += signal_submit.cc
+SRC_CC += rpc_dispatch_loop.cc
+SRC_CC += thread.cc thread_bootstrap.cc thread_myself.cc utcb.cc

repos/base-foc/lib/mk/base.inc

@@ -1,20 +1,4 @@
-#
-# \brief  Portions of base library that are exclusive to non-core processes
-# \author Norman Feske
-# \date   2013-02-14
-#
+include $(BASE_DIR)/lib/mk/base.inc
 
-LIBS += base-common
-
-SRC_CC += console/log_console.cc
-SRC_CC += cpu/cache.cc
-SRC_CC += env/env.cc env/stack_area.cc env/reinitialize.cc \
-          env/cap_map_remove.cc env/cap_alloc.cc
-SRC_CC += thread/thread_start.cc
-SRC_CC += irq/platform.cc
-SRC_CC += server/rpc_cap_alloc.cc
-
-INC_DIR += $(REP_DIR)/src/include $(BASE_DIR)/src/include
-
-vpath %.cc  $(REP_DIR)/src/base
-vpath %.cc $(BASE_DIR)/src/base
+SRC_CC += cap_map_remove.cc cap_alloc.cc
+SRC_CC += thread_start.cc

repos/base-foc/src/core/target.inc

@@ -65,6 +65,6 @@ vpath rom_session_component.cc    $(GEN_CORE_DIR)
 vpath trace_session_component.cc  $(GEN_CORE_DIR)
 vpath core_rpc_cap_alloc.cc       $(GEN_CORE_DIR)
 vpath core_region_map.cc          $(GEN_CORE_DIR)
-vpath core_printf.cc              $(BASE_DIR)/src/base/console
+vpath core_printf.cc              $(BASE_DIR)/src/lib/base
 vpath %.cc                        $(REP_DIR)/src/core
-vpath %.cc                        $(REP_DIR)/src/base/thread
+vpath %.cc                        $(REP_DIR)/src/lib/base