Introducing LunaBuild to the build flow (#36)

[lunaix-os.git] / lunaix-os / kernel.mk

diff --git a/lunaix-os/kernel.mk b/lunaix-os/kernel.mk
index 81e8921201c9aae5770b2a7aab1f5644752c8587..9399e7154c0e26cf6db7800767f57d3468576a1c 100644 (file)
--- a/lunaix-os/kernel.mk
+++ b/lunaix-os/kernel.mk
@@ -1,44 +1,53 @@
 include os.mkinc
 include toolchain.mkinc
 
-define ksrc_dirs
-       kernel
-       hal
-       debug
-       libs
-       arch/$(ARCH)
-endef
-
-define kinc_dirs
-       includes
-       includes/usr
-endef
-
+ksrc_files = $(shell cat .builder/sources.list)
+kinc_dirs  = $(shell cat .builder/includes.list)
+khdr_files = $(shell cat .builder/headers.list)
+khdr_files += .builder/configs.h
 
 kbin_dir := $(BUILD_DIR)
 kbin := $(BUILD_NAME)
 
-ksrc_files := $(foreach f, $(ksrc_dirs), $(shell find $(f) -name "*.[cS]"))
 ksrc_objs := $(addsuffix .o,$(ksrc_files))
-
+ksrc_deps := $(addsuffix .d,$(ksrc_files))
+khdr_opts := $(addprefix -include ,$(khdr_files))
 kinc_opts := $(addprefix -I,$(kinc_dirs))
 
+tmp_kbin  := $(BUILD_DIR)/tmpk.bin
+ksymtable := lunaix_ksyms.o
 
-CFLAGS += -include flags.h
+CFLAGS += $(khdr_opts)
 
-%.S.o: %.S
+-include $(ksrc_deps)
+
+%.S.o: %.S $(khdr_files) kernel.mk
        $(call status_,AS,$<)
-       @$(CC) $(kinc_opts) -c $< -o $@
+       @$(CC) $(CFLAGS) $(kinc_opts) -MMD -MP -c $< -o $@
 
-%.c.o: %.c
+%.c.o: %.c $(khdr_files) kernel.mk
        $(call status_,CC,$<)
-       @$(CC) $(CFLAGS) $(kinc_opts) -c $< -o $@
+       @$(CC) $(CFLAGS) $(kinc_opts) -MMD -MP -c $< -o $@
 
-$(kbin): $(ksrc_objs) $(kbin_dir)
+$(tmp_kbin): $(ksrc_objs)
        $(call status_,LD,$@)
-       @$(CC) -T link/linker.ld -o $(kbin) $(ksrc_objs) $(LDFLAGS)
+       @$(CC) -T link/linker.ld $(LDFLAGS) -o $@ $^
+
+$(ksymtable): $(tmp_kbin)
+       $(call status_,KSYM,$@)
+       @scripts/gen_ksymtable.sh DdRrTtAGg $< > .lunaix_ksymtable.S
+       @$(CC) $(CFLAGS) -c .lunaix_ksymtable.S -o $@
+
+.PHONY: __do_relink
+__do_relink: $(ksrc_objs) $(ksymtable)
+       $(call status_,LD,$(kbin))
+       @$(CC) -T link/linker.ld $(LDFLAGS) -o $(kbin) $^
+       @rm $(tmp_kbin)
 
-all: $(kbin)
+.PHONY: all
+all: __do_relink
 
 clean:
-       @rm -f $(ksrc_objs)
\ No newline at end of file
+       @rm -f $(ksrc_objs)
+       @rm -f $(ksrc_deps)
+       @rm -f .lunaix_ksymtable.S $(ksymtable)
\ No newline at end of file