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DO != echo > deps.mk
CFLAGS := -fno-pie -ggdb3 -ffreestanding -nostdlib
INCLUDE_DIRS := include
all: apos.bin
ARCH ?= riscv
CROSS_COMPILE ?= riscv64-unknown-elf-
# Common programs
CC := gcc
AR := ar
CPP := cpp
OBJCOPY ?= objcopy
OBJCOPY_FLAGS ?= -Obinary
KERNEL_SOURCES :=
KERNEL_LINK :=
INIT_SOURCES :=
INIT_LINK :=
INCLUDE_DIRS := include
include arch/$(ARCH)/source.mk
INCLUDE_FLAGS != ./scripts/prepend -I $(INCLUDE_DIRS)
KERNEL_OBJECTS != ./scripts/mkobjs $(CROSS_COMPILE)$(CC) $(CFLAGS)\
$(INCLUDE_FLAGS) --kern-files $(KERNEL_SOURCES)
KERNEL_LD != ./scripts/mkobjs $(CROSS_COMPILE)$(CPP)\
$(INCLUDE_FLAGS) --kern-lds $(KERNEL_LINK)
INIT_OBJECTS != ./scripts/mkobjs $(CROSS_COMPILE)$(CC) $(CFLAGS)\
$(INCLUDE_FLAGS) --init-files $(INIT_SOURCES)
INIT_LD != ./scripts/mkobjs $(CROSS_COMPILE)$(CPP)\
$(INCLUDE_FLAGS) --init-lds $(INIT_LINK)
include deps.mk
apos.bin: kernel.elf init.elf
$(CROSS_COMPILE)$(OBJCOPY) $(OBJCOPY_FLAGS) kernel.elf kernel.bin
$(CROSS_COMPILE)$(OBJCOPY) $(OBJCOPY_FLAGS) init.elf init.bin
cat init.bin kernel.bin > $@
kernel.elf: $(KERNEL_OBJECTS) $(KERNEL_LD)
$(CROSS_COMPILE)$(CC) -T$(KERNEL_LD) $(CFLAGS) $(INCLUDE_FLAGS) $(KERNEL_OBJECTS) -o $@
init.elf: $(INIT_OBJECTS) $(INIT_LD)
$(CROSS_COMPILE)$(CC) -T$(INIT_LD) $(CFLAGS) $(INCLUDE_FLAGS) $(INIT_OBJECTS) -o $@
clean:
rm $(KERNEL_OBJECTS) $(INIT_OBJECTS) $(INIT_LD) $(KERNEL_LD) kernel.bin kernel.elf init.bin init.elf apos.bin
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