Move src/*.{c,h} to src/core/

This way we have all libosmocore.so in an own subdir instead of having
lots of files in the parent dir, which also contains subdirs to other
libraries.
This also matches the schema under include/osmocom/.

Change-Id: I6c76fafebdd5e961aed88bbecd2c16bc69d580e2
diff --git a/src/core/Makefile.am b/src/core/Makefile.am
new file mode 100644
index 0000000..2c73af6
--- /dev/null
+++ b/src/core/Makefile.am
@@ -0,0 +1,108 @@
+# This is _NOT_ the library release version, it's an API version.
+# Please read chapter "Library interface versions" of the libtool documentation
+# before making any modifications: https://www.gnu.org/software/libtool/manual/html_node/Versioning.html
+LIBVERSION=19:0:0
+
+AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include
+AM_CFLAGS = -Wall $(TALLOC_CFLAGS) $(PTHREAD_CFLAGS) $(LIBSCTP_CFLAGS) $(LIBMNL_CFLAGS)
+
+if ENABLE_PSEUDOTALLOC
+AM_CPPFLAGS += -I$(top_srcdir)/src/pseudotalloc
+endif
+
+lib_LTLIBRARIES = libosmocore.la
+
+libosmocore_la_LIBADD = $(BACKTRACE_LIB) $(TALLOC_LIBS) $(LIBRARY_RT) $(PTHREAD_LIBS) $(LIBSCTP_LIBS)
+libosmocore_la_SOURCES = context.c timer.c timer_gettimeofday.c timer_clockgettime.c \
+			 select.c signal.c msgb.c bits.c \
+			 bitvec.c bitcomp.c counter.c fsm.c \
+			 write_queue.c utils.c socket.c \
+			 logging.c logging_syslog.c logging_gsmtap.c rate_ctr.c \
+			 gsmtap_util.c crc16.c panic.c backtrace.c \
+			 conv.c application.c rbtree.c strrb.c \
+			 loggingrb.c crc8gen.c crc16gen.c crc32gen.c crc64gen.c \
+			 macaddr.c stat_item.c stats.c stats_statsd.c prim.c \
+			 stats_tcp.c \
+			 conv_acc.c conv_acc_generic.c sercomm.c prbs.c \
+			 isdnhdlc.c \
+			 tdef.c \
+			 thread.c \
+			 time_cc.c \
+			 sockaddr_str.c \
+			 use_count.c \
+			 exec.c \
+			 it_q.c \
+			 probes.d \
+			 base64.c \
+			 $(NULL)
+
+if HAVE_SSSE3
+libosmocore_la_SOURCES += conv_acc_sse.c
+if HAVE_SSE4_1
+conv_acc_sse.lo : AM_CFLAGS += -mssse3 -msse4.1
+else
+conv_acc_sse.lo : AM_CFLAGS += -mssse3
+endif
+
+if HAVE_AVX2
+libosmocore_la_SOURCES += conv_acc_sse_avx.c
+if HAVE_SSE4_1
+conv_acc_sse_avx.lo : AM_CFLAGS += -mssse3 -mavx2 -msse4.1
+else
+conv_acc_sse_avx.lo : AM_CFLAGS += -mssse3 -mavx2
+endif
+endif
+endif
+
+if HAVE_NEON
+libosmocore_la_SOURCES += conv_acc_neon.c
+# conv_acc_neon.lo : AM_CFLAGS += -mfpu=neon no, could as well be vfp with neon
+endif
+
+BUILT_SOURCES = crc8gen.c crc16gen.c crc32gen.c crc64gen.c
+
+EXTRA_DIST = \
+	conv_acc_sse_impl.h \
+	conv_acc_neon_impl.h \
+	crcXXgen.c.tpl \
+	stat_item_internal.h \
+	$(NULL)
+
+libosmocore_la_LDFLAGS = -version-info $(LIBVERSION) -no-undefined
+
+if ENABLE_PLUGIN
+libosmocore_la_SOURCES += plugin.c
+libosmocore_la_LIBADD += $(LIBRARY_DLOPEN)
+endif
+
+if ENABLE_MSGFILE
+libosmocore_la_SOURCES += msgfile.c
+endif
+
+if ENABLE_SERIAL
+libosmocore_la_SOURCES += serial.c
+endif
+
+if ENABLE_SYSTEMD_LOGGING
+libosmocore_la_SOURCES += logging_systemd.c
+libosmocore_la_LIBADD += $(SYSTEMD_LIBS)
+endif
+
+if ENABLE_LIBMNL
+libosmocore_la_SOURCES += mnl.c
+libosmocore_la_LIBADD += $(LIBMNL_LIBS)
+endif
+
+if ENABLE_SYSTEMTAP
+probes.h: probes.d
+	$(DTRACE) -C -h -s $< -o $@
+
+probes.lo: probes.d
+	$(LIBTOOL) --mode=compile $(AM_V_lt) --tag=CC env CFLAGS="$(CFLAGS)" $(DTRACE) -C -G -s $< -o $@
+
+BUILT_SOURCES += probes.h probes.lo
+libosmocore_la_LIBADD += probes.lo
+endif
+
+crc%gen.c: crcXXgen.c.tpl
+	$(AM_V_GEN)sed -e's/XX/$*/g' $< > $@