Makefile

all: all_targets check

UNAME := $(shell uname)

SOURCES :=
TARGETS :=
TESTS :=

include ./module.mk
include boot/module.mk
include kernel/module.mk
include tools/module.mk

# Standard Settings
CC := gcc
COMMON_CFLAGS := -I . -std=c99
COMMON_CFLAGS += -Wall -Werror-implicit-function-declaration -Werror -Wno-array-bounds
COMMON_CFLAGS += -fno-common -fno-asynchronous-unwind-tables
COMMON_CFLAGS += -mno-red-zone
COMMON_CFLAGS += -O2

FREESTANDING_CFLAGS := -fno-builtin

# Cross Compiler
CROSS_CC := x86_64-elf-gcc
CROSS_CFLAGS := -DCROSS $(FREESTANDING_CFLAGS) $(COMMON_CFLAGS)
CROSS_LD := x86_64-elf-ld

# Host Compiler without standard library
HOST_CFLAGS := -DHOST $(FREESTANDING_CFLAGS) $(COMMON_CFLAGS)

# Host Compiler for unit testing without standard library
TEST_CFLAGS := -DTEST $(FREESTANDING_CFLAGS) $(COMMON_CFLAGS)

# Host Compiler with standard library
NATIVE_CFLAGS := -DNATIVE $(COMMON_CFLAGS)

%.bin: %.asm
	nasm -f bin -o $@ $<

%.cross.o: %.asm
	nasm -f elf64 -o $@ $<

%.cross.o: %.c
	$(CROSS_CC) -c -MD $(CROSS_CFLAGS) $< -o $@

%.host.o: %.c
	$(CC) -c -MD $(HOST_CFLAGS) $< -o $@

%.test.o: %.c
	$(CC) -c -MD $(TEST_CFLAGS) $< -o $@

%.native.o: %.c
	$(CC) -c -MMD $(NATIVE_CFLAGS) $< -o $@

%.exe.run: %.exe
	$^
	@echo > $@

all_targets: $(TARGETS)

check: $(TESTS:=.run)

usb_boot_c:
	@echo "Unable to make the C: drive a PDOS boot disk"

usb_boot_%: tools/set_boot.exe boot/boot.bin boot/loader.bin kernel/kernel.bin
	tools/set_boot.exe //./$*: boot/boot.bin

usb_kernel_%: boot/loader.bin kernel/kernel.bin
	cp boot/loader.bin $*:/
	cp kernel/kernel.bin $*:/

clean:
	rm -f */*.bin */*.exe */*.exe.run */*.o */*.d

-include $(SOURCES:.c=.host.d)
-include $(SOURCES:.c=.cross.d)
-include $(SOURCES:.c=.test.d)
-include $(SOURCES:.c=.native.d)