nexus-am/Makefile.compile

AS  = $(CROSS_COMPILE)gcc
CC  = $(CROSS_COMPILE)gcc
CXX = $(CROSS_COMPILE)g++
LD  = $(CROSS_COMPILE)ld
OBJDUMP = $(CROSS_COMPILE)objdump
OBJCOPY = $(CROSS_COMPILE)objcopy
READELF = $(CROSS_COMPILE)readelf

ISA_DEF  = __ISA_$(shell echo $(ISA) | tr a-z A-Z)__
ARCH_DEF = __ARCH_$(shell echo $(ARCH) | tr a-z A-Z | tr - _)

INCLUDES  = $(addprefix -I, $(INC_DIR)) -I$(AM_HOME)/am/
INCLUDES += -I$(AM_HOME)/am/include

CFLAGS += -O2 -MMD -Wall -Werror -ggdb $(INCLUDES) -D$(ISA_DEF) -D__ISA__=\"$(ISA)\" \
          -D__ARCH__=$(ARCH) -D$(ARCH_DEF) \
          -fno-asynchronous-unwind-tables -fno-builtin -fno-stack-protector

# Files to be compiled
OBJS = $(addprefix $(DST_DIR)/, $(addsuffix .o, $(basename $(SRCS))))

# Compilation patterns
$(DST_DIR)/%.o: %.c
	@mkdir -p $(dir $@) && echo + CC $<
	@$(CC) -std=gnu11 $(CFLAGS) -c -o $@ $(realpath $<)
$(DST_DIR)/%.o: %.cpp
	@mkdir -p $(dir $@) && echo + CXX $<
	@$(CXX) -std=c++11 -ffreestanding -fno-rtti -fno-exceptions $(CXXFLAGS) $(CFLAGS) -c -o $@ $(realpath $<)
$(DST_DIR)/%.o: %.S
	@mkdir -p $(dir $@) && echo + AS $<
	@$(AS) -MMD $(INCLUDES) -D$(ISA_DEF) $(ASFLAGS) -c -o $@ $(realpath $<)

# Depencies
DEPS = $(addprefix $(DST_DIR)/, $(addsuffix .d, $(basename $(SRCS))))
-include $(DEPS)

# Dependent AM and libraries
.PHONY: $(LIBS) am
am:
	@$(MAKE) -s -C $(AM_HOME)
$(sort $(LIBS)): %:
	@$(MAKE) -s -C $(AM_HOME)/libs/$*