LLVM_PATH = /home/pfalcon/projects-3rdparty/llvm-3.0.src/Debug/bin
OPT = $(LLVM_PATH)/opt
LLC = $(LLVM_PATH)/llc
CROSS_COMPILE = msp430-

MCU = msp430g2553
TARGET_FLAGS = -mmcu=$(MCU)
# Can select specific device if multiple connected at the same time,
# format "-s <device_serial>" or "-U <usb_port_id>", see mspdebug --help
DEVICE_SELECT ?=

CLANGFLAGS = -ccc-host-triple msp430 -D__MSP430G2553__ -I/usr/msp430/include -m32 -emit-llvm
OPTFLAGS = -std-compile-opts -strip-debug -disable-simplify-libcalls
LLCFLAGS = -march=msp430

OVERRIDE_RULES = 1

$(TARGETDIR)/%.o: %.cpp
	mkdir -p $(TARGETDIR)
	clang $(ALL_CXXFLAGS) $(CLANGFLAGS) -S -c $^ -o $@.ll
	$(OPT) $(OPTFLAGS) -S $@.ll -f -o $@.opt.ll
	
	$(LLC) $(LLCFLAGS) $@.opt.ll -o $@.opt.s_
	
	awk '/.globl\tmain/      { print "\t.section\t.init9,\"ax\",@progbits"; } \
	                         { print }' $@.opt.s_ > $@.opt.s
	msp430-as $@.opt.s -o $@

deploy-%: $(TARGETDIR)/%
	mspdebug $(DEVICE_SELECT) rf2500 "prog $^"