# SPDX-License-Identifier: GPL-2.0-or-later

##############################################################################################
# Start of default section
#

TRGT = arm-elf-
CC   = $(TRGT)gcc
CP   = $(TRGT)objcopy
AS   = $(TRGT)gcc -x assembler-with-cpp
HEX  = $(CP) -O ihex
BIN  = $(CP) -O binary
OBJDUMP = $(TRGT)objdump

MCU  = arm7tdmi

# List all default C defines here, like -D_DEBUG=1
DDEFS =

# List all default ASM defines here, like -D_DEBUG=1
DADEFS =

# List all default directories to look for include files here
DINCDIR =

# List the default directory to look for the libraries here
DLIBDIR =

# List all default libraries here
DLIBS =

#
# End of default section
##############################################################################################

##############################################################################################
# Start of user section
#

# Define project name here
PROJECT = at91sam7x_ocl

# Define linker script file here
LDSCRIPT= at91sam7x_ram.ld

# List all user C define here, like -D_DEBUG=1
UDEFS =

# Define ASM defines here
UADEFS =

# List C source files here
SRC  = main.c dcc.c samflash.c

# List ASM source files here
ASRC = crt.s

# List all user directories here
UINCDIR =

# List the user directory to look for the libraries here
ULIBDIR =

# List all user libraries here
ULIBS =

# Define optimisation level here
OPT = -O2

#
# End of user defines
##############################################################################################


INCDIR  = $(patsubst %,-I%,$(DINCDIR) $(UINCDIR))
LIBDIR  = $(patsubst %,-L%,$(DLIBDIR) $(ULIBDIR))
DEFS    = $(DDEFS) $(UDEFS)
ADEFS   = $(DADEFS) $(UADEFS)
OBJS    = $(ASRC:.s=.o) $(SRC:.c=.o)
LIBS    = $(DLIBS) $(ULIBS)
MCFLAGS = -mcpu=$(MCU)

ASFLAGS = $(MCFLAGS) -g -gdwarf-2 -Wa,-amhls=$(<:.s=.lst) $(ADEFS)
CPFLAGS = $(MCFLAGS) $(OPT) -gdwarf-2 -mthumb-interwork -fomit-frame-pointer -Wall -Wstrict-prototypes -fverbose-asm -Wa,-ahlms=$(<:.c=.lst) $(DEFS)
LDFLAGS = $(MCFLAGS) -nostartfiles -T$(LDSCRIPT) -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch $(LIBDIR)

# Generate dependency information
#CPFLAGS += -MD -MP -MF .dep/$(@F).d

#
# makefile rules
#

all: $(OBJS) $(PROJECT).elf $(PROJECT).hex $(PROJECT).bin $(PROJECT).lst

%o : %c
	$(CC) -c $(CPFLAGS) -I . $(INCDIR) $< -o $@

%o : %s
	$(AS) -c $(ASFLAGS) $< -o $@

%elf: $(OBJS)
	$(CC) $(OBJS) $(LDFLAGS) $(LIBS) -o $@

%hex: %elf
	$(HEX) $< $@

%bin: %elf
	$(BIN) $< $@

%.lst: %.elf
	$(OBJDUMP) -h -S $< > $@

clean:
	-rm -f $(OBJS)
	-rm -f $(PROJECT).elf
	-rm -f $(PROJECT).map
	-rm -f $(PROJECT).hex
	-rm -f $(PROJECT).bin
	-rm -f $(PROJECT).lst
	-rm -f $(SRC:.c=.c.bak)
	-rm -f $(SRC:.c=.lst)
	-rm -f $(ASRC:.s=.s.bak)
	-rm -f $(ASRC:.s=.lst)
	-rm -fR .dep

#
# Include the dependency files, should be the last of the makefile
#
#-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)

# *** EOF ***
