makefile: add cscope target

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>

3 files changed, 31 insertions, 0 deletions

diff --git a/rtos/Rules.mk b/rtos/Rules.mk
new file mode 100644
index 0000000..dc059a1
--- /dev/null
+++ b/rtos/Rules.mk
@@ -0,0 +1,28 @@
+# cscope.rules
+
+FULL_CSRCS = $(foreach f,$(CSRCS),$(firstword $(wildcard $(VPATH:%=%/$f)) not-found:$f))
+
+.PHONY: cscope build_deps
+cscope: build_deps
+        @rm -f cscope.*
+        @for F in $(FULL_CSRCS); do echo $$F >> cscope.files; done
+        @cat .headers.1.dep >> cscope.files
+        @sort -u cscope.files > .headers.dep
+        @mv .headers.dep cscope.files
+        @rm -f .headers.dep .headers.1.dep
+        @cscope -b -k
+        @echo "cscope.out has been built"
+
+DEPS = $(patsubst %.c,%.d,$(CSRCS))
+
+build_deps:
+        @rm -f *.dep
+        @for F in $(DEPS); do \
+                $(MAKE) $$F; \
+                done
+        @grep -v "\.o:" .headers.dep | sort -u | cut -f2 -d' ' > .headers.1.dep
+
+%.d: %.c
+        $(CC) $(CFLAGS) -MM $< -MF $(notdir $@)
+        @cat $(notdir $@) >> .headers.dep
+        @rm -f $(notdir $@)
diff --git a/rtos/ethercat_slave_demo/Makefile b/rtos/ethercat_slave_demo/Makefile
index 40816a1..e5d91e0 100644
--- a/rtos/ethercat_slave_demo/Makefile
+++ b/rtos/ethercat_slave_demo/Makefile
@@ -114,3 +114,5 @@ clean:
 install: $(EXE).bin
         cp $(EXE).bin $(INSTALL_DIR)
 
+-include ../Rules.mk
+
diff --git a/rtos/icss_emac/Makefile b/rtos/icss_emac/Makefile
index a522c95..83ecb07 100644
--- a/rtos/icss_emac/Makefile
+++ b/rtos/icss_emac/Makefile
@@ -71,3 +71,4 @@ clean:
 install: $(EXE).bin
         cp $(EXE).bin $(INSTALL_DIR)
 
+-include ../Rules.mk