TOP_DIR?=../..
ML_SETUP_DISABLE_USER_CONFIGS=y
ML_SETUP_EXTENSION=modules

include $(TOP_DIR)/Makefile.setup

# should we define a platform for modules? for now use 'all' platform
PLATFORM_INC=$(TOP_DIR)/platform/all
CFLAGS += -DMODULE -DMODULE_NAME=$(MODULE_NAME) -DCONFIG_MAGICLANTERN $(MODULE_CFLAGS) -I.

MODULE_SRC    = $(MODULE_NAME).c
MODULE_OUTPUT = $(MODULE_NAME).mo
MODULE_SYM    = $(MODULE_NAME).sym
MODULE_DEP    = $(MODULE_NAME).dep
MODULE_DEPS   = $(MODULE_NAME).d

MODULE_STRINGS   = module_strings.h

HGDIFF_OBJS = hgdiff.tmp

all:: $(MODULE_OUTPUT) $(MODULE_SYM) $(MODULE_DEP)
nodep:: $(MODULE_OUTPUT) $(MODULE_SYM)
delete_if_failed:
	@echo ""
	@echo "Building module $(MODULE_NAME)..."
	@make all --no-print-directory || { \
		echo ""; \
		echo "********************************************************"; \
		echo "WARNING: module $(MODULE_NAME) failed to build, deleting"; \
		echo "********************************************************"; \
		echo ""; \
		make clean; \
	 }

-include $(MODULE_DEPS)

clean::
	$(call rm_files, $(MODULE_OBJS) $(MODULE_OUTPUT) $(MODULE_SYM) $(MODULE_DEP) $(MODULE_STRINGS) $(HGDIFF_OBJS) *.o *.d *.dep *.sym hgstamp)

module_strings.h: README.rst hgstamp
	$(call build,README, $(PYTHON) ../readme2modulestrings.py > $@)

README.rst:
	$(call build,README,echo -e "$(MODULE_NAME)\n========\n\nPlease write a one-page description for your module here.\n\nYou may also add some metadata:\n\n:Author: <your name here>\n:License: <your license here>\n:Website: <your website here>\n\n" > $@)

$(MODULE_OUTPUT): $(MODULE_STRINGS) $(MODULE_OBJS) $(HGDIFF_OBJS)
	$(call build,MODULE,$(LD) -r -o $@ $(MODULE_OBJS))
	$(call build,STRIP,$(STRIP) --strip-debug --strip-unneeded --discard-all --discard-locals $@)
#~ 	$(call build,OBJCOPY,$(OBJCOPY) --add-section .module_hginfo=hginfo.tmp $@)
	$(call build,OBJCOPY,$(OBJCOPY) --add-section .module_hgdiff=hgdiff.tmp $@)


# tag any function with DUMP_ASM, then run "make dump_asm" from module directory
dump_asm: all
	$(OBJDUMP) -d -M reg-names-raw --section=.dump_asm $(MODULE_OBJS)

hginfo.tmp: FORCE
	$(call build,HGDIFF,(echo "Repo path:"; hg root; echo "\nSource:"; hg paths; echo "\nDir state:"; hg log --limit 1) | gzip > $@)
hgdiff.tmp: FORCE
	$(call build,HGDIFF,(hg diff --nodates .) | gzip > $@)
%.sym: %.mo
	$(call build,EXPORTS,$(READELF) -sW $< | grep GLOBAL | grep -v UND | grep -v COM | grep -v "__module_.*$(MODULE_NAME)" | $(AWK) "{print \$$2 \" \" \$$8;}" | sort > $@ && cat $@)
%.dep: %.mo
	$(call build,DEPENDS,$(READELF) -sW $< | $(GREP) GLOBAL | $(GREP) 00000000 | $(GREP) UND | $(AWK) "{print \$$8;}" | sort > $@ && cd $(MODULES_DIR) && $(PYTHON) checkdep.py $(MODULE_NAME))

# redefine this in module makefile to install additional data along with your module
install_user_data::

modules_install_dir: install_prepare
	$(call build,MKDIR,$(MKDIR) -p $(INSTALL_MODULES_DIR))

install:: modules_install_dir all install_user_data
	$(call build,$(MODULE_OUTPUT),$(CP) $(PWD)/$(MODULE_OUTPUT) $(INSTALL_MODULES_DIR)/)
	$(INSTALL_FINISH)

FORCE:

include $(TOP_DIR)/Makefile.filerules

# force recompiling whenever hg history changes (for autogenerated strings)
# http://mercurial.selenic.com/wiki/VersioningWithMake
HGVERSION:= $(shell hg log . -r 'reverse(ancestors(.))' -l 1 --template 'hgid: {node|short}')
hgstamp: FORCE
	@[ -f $@ ] || touch $@
	@echo $(HGVERSION) | cmp -s $@ - || ( echo $(HGVERSION) > $@ ; echo "Updated HGVERSION" )
FORCE: ;