# Makefile for simple C program, running from SDRAM on W90N740.
# Hugo Vincent (hugo@bluewatersys.com), Bluewater Systems, 19 Nov 2004.

# Relevant Files- add extra files here (keep boot.o, it is needed).
OBJS    = boot.o example.o
ELF     = example.elf
BIN 	= example.bin
DISASM	= $(ELF).txt

# Flags to tools (tells C compiler and assembler to generate big-endian 
# ARM7TDMI code, and tells the linker to make big-endian binaries, with 
# no start files (i.e. no standard library), and to use the memory map
# defined in w90n740-ram.ld).
CFLAGS 	= -Os -I. -mcpu=arm7tdmi -mbig-endian
ASFLAGS	= -mcpu=arm7tdmi -gstabs -mbig-endian
LDFLAGS	= -Tw90n740-ram.ld -nostartfiles -Lgcc -L. -EB

# Rules- default is to make the ELF and BIN binaries, and the disassembly.
all: $(ELF) $(BIN) $(DISASM)

$(ELF): $(OBJS)
	arm-elf-ld $(LDFLAGS) -o $(ELF) $(OBJS)

$(BIN): $(ELF)
	arm-elf-objcopy -S -O binary $(ELF) $(BIN) 

%.o:%.c
	arm-elf-gcc -c $(CFLAGS) $< -o $@

%.o:%.s
	arm-elf-as $(ASFLAGS) $< -o $@

clean:
	rm -f $(OBJS) $(ELF) $(BIN) $(DISASM)

$(DISASM): $(ELF)
	arm-elf-objdump -d $(ELF) > $(DISASM)