Enable C++ files compilation

Change-Id: I28b180a6c91165049cd7cc58a64f1e5e1698da61
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/mk/tle.cpp-pre.mk b/mk/tle.cpp-pre.mk
new file mode 100644
index 0000000..ae7748b
--- /dev/null
+++ b/mk/tle.cpp-pre.mk
@@ -0,0 +1,91 @@
+# Copyright (c) 2016 Intel Corporation.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# convert source to obj file
+src2obj = $(strip $(patsubst %.cpp,%.o,\
+        $(patsubst %.S,%_s.o,$(1))))
+
+# add a dot in front of the file name
+dotfile = $(strip $(foreach f,$(1),\
+        $(join $(dir $f),.$(notdir $f))))
+
+# convert source/obj files into dot-dep filename (does not
+# include .S files)
+src2dep = $(strip $(call dotfile,$(patsubst %.cpp,%.o.d, \
+                $(patsubst %.S,,$(1)))))
+obj2dep = $(strip $(call dotfile,$(patsubst %.o,%.o.d,$(1))))
+
+# convert source/obj files into dot-cmd filename
+src2cmd = $(strip $(call dotfile,$(patsubst %.cpp,%.o.cmd, \
+                $(patsubst %.S,%_s.o.cmd,$(1)))))
+obj2cmd = $(strip $(call dotfile,$(patsubst %.o,%.o.cmd,$(1))))
+
+OBJS-y := $(call src2obj,$(SRCS-y))
+OBJS-n := $(call src2obj,$(SRCS-n))
+OBJS-  := $(call src2obj,$(SRCS-))
+OBJS-all := $(filter-out $(SRCS-all),$(OBJS-y) $(OBJS-n) $(OBJS-))
+
+DEPS-y := $(call src2dep,$(SRCS-y))
+DEPS-n := $(call src2dep,$(SRCS-n))
+DEPS-  := $(call src2dep,$(SRCS-))
+DEPS-all := $(DEPS-y) $(DEPS-n) $(DEPS-)
+DEPSTMP-all := $(DEPS-all:%.d=%.d.tmp)
+
+CMDS-y := $(call src2cmd,$(SRCS-y))
+CMDS-n := $(call src2cmd,$(SRCS-n))
+CMDS-  := $(call src2cmd,$(SRCS-))
+CMDS-all := $(CMDS-y) $(CMDS-n) $(CMDS-)
+
+-include $(DEPS-y) $(CMDS-y)
+
+# command to compile a .cpp file to generate an object
+ifeq ($(USE_HOST),1)
+CXX_TO_O = $(HOSTCXX) -Wp,-MD,$(call obj2dep,$(@)).tmp $(HOST_CXXFLAGS) \
+	$(CXXFLAGS_$(@)) $(HOST_EXTRA_CXXFLAGS) -o $@ -c $<
+CXX_TO_O_STR = $(subst ','\'',$(CXX_TO_O)) #'# fix syntax highlight
+CXX_TO_O_DISP = $(if $(V),"$(CXX_TO_O_STR)","  HOSTCXX $(@)")
+else
+CXX_TO_O = $(CXX) -Wp,-MD,$(call obj2dep,$(@)).tmp $(CXXFLAGS) \
+	$(CXXFLAGS_$(@)) $(EXTRA_CXXFLAGS) -o $@ -c $<
+CXX_TO_O_STR = $(subst ','\'',$(CXX_TO_O)) #'# fix syntax highlight
+CXX_TO_O_DISP = $(if $(V),"$(CXX_TO_O_STR)","  CXX $(@)")
+endif
+CXX_TO_O_CMD = 'cmd_$@ = $(CXX_TO_O_STR)'
+CXX_TO_O_DO = @set -e; \
+	echo $(CXX_TO_O_DISP); \
+	$(CXX_TO_O) && \
+	echo $(CXX_TO_O_CMD) > $(call obj2cmd,$(@)) && \
+	sed 's,'$@':,dep_'$@' =,' $(call obj2dep,$(@)).tmp > $(call obj2dep,$(@)) && \
+	rm -f $(call obj2dep,$(@)).tmp
+
+#
+# Compile .cpp file if needed
+# Note: dep_$$@ is from the .d file and DEP_$$@ can be specified by
+# user (by default it is empty)
+#
+#.SECONDEXPANSION:
+%_cpp.o: %.cpp $$(wildcard $$(dep_$$@)) $$(DEP_$$(@)) FORCE
+	@[ -d $(dir $@) ] || mkdir -p $(dir $@)
+	$(if $(D),\
+		@echo -n "$< -> $@ " ; \
+		echo -n "file_missing=$(call boolean,$(file_missing)) " ; \
+		echo -n "cmdline_changed=$(call boolean,$(call cmdline_changed,$(CXX_TO_O))) " ; \
+		echo -n "depfile_missing=$(call boolean,$(depfile_missing)) " ; \
+		echo "depfile_newer=$(call boolean,$(depfile_newer))")
+	$(if $(or \
+		$(file_missing),\
+		$(call cmdline_changed,$(CXX_TO_O)),\
+		$(depfile_missing),\
+		$(depfile_newer)),\
+		$(CXX_TO_O_DO))
+