matos/Makefile

# Used to generated .d file that deal with header dependencies
CPPFLAGS = -MMD
AS=nasm
ASFLAGS += -f elf32
LDFLAGS += -m elf_i386
CFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-pie -fno-stack-protector -fno-tree-vectorize
CXXFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-rtti -fno-pie
DEBUG_FLAGS += -g -Og -DDEBUG -fno-omit-frame-pointer -fno-inline
LIBGCC = $(shell $(CC) -print-libgcc-file-name $(CFLAGS))

QEMU_OPT += -hda disk.img
ARCH?=x86
SUBDIRS := core drivers tests arch/$(ARCH)

INCDIRS += $(foreach dir, $(SUBDIRS), -I$(dir))
CPPFLAGS += $(INCDIRS)

asmsrc=
asmobj=$(asmsrc:%.asm=%.o)
gasmsrc=$(wildcard arch/$(ARCH)/*.S arch/$(ARCH)/boot/*.S)
gasmobj=$(gasmsrc:%.S=%.o)
csrc=$(shell find $(SUBDIRS) -type f -name "*.c")#   $(wildcard *.c)
cobj=$(csrc:%.c=%.o)
deps=$(csrc:%.c=%.d) $(gasmsrc:%.S=%.d)

kernel kernel.sym &: $(asmobj) $(gasmobj) $(cobj) linker.ld
	$(LD) $(LDFLAGS) $(asmobj) $(gasmobj) $(cobj) -o kernel -T linker.ld $(LIBGCC)
	objcopy --only-keep-debug kernel kernel.sym
	objcopy --strip-debug  kernel

fd.iso: kernel
	mkdir -p isodir/boot/grub
	cp $< isodir/boot/
	@printf "menuentry \"myos\" {\n\tmultiboot /boot/kernel\n}" > isodir/boot/grub/grub.cfg
	grub-mkrescue -o $@ isodir

disk.img: disk.sfdisk
	qemu-img create -f raw $@ 32M
	sfdisk $@ < disk.sfdisk

# NASM without preprocessing
%.o:%.asm
	$(AS) $(ASFLAGS) -o $@ $<

#GNU GAS ASM with C Preprocessing
%.o: %.S
	$(CC) $(CFLAGS) $(CPPFLAGS) -c "$<" -o "$@"


test: CFLAGS += -DRUN_TEST
test: clean kernel disk.img
	qemu-system-x86_64 -kernel kernel -serial stdio -m 32M $(QEMU_OPT)

run:kernel disk.img
	qemu-system-x86_64 -kernel $< $(QEMU_OPT)

debug: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST
debug: CXXFLAGS += $(DEBUG_FLAGS)
debug:kernel kernel.sym
	gdb -q -x debug.gdb

debug_test: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST
debug_test: debug

clean:
	$(RM) kernel $(asmobj) $(gasmobj) $(cobj) $(deps) fd.iso kernel.sym
	$(RM) -r isodir

ifneq ($(MAKECMDGOALS),clean)
-include $(deps)
endif
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00			`# Used to generated .d file that deal with header dependencies`
			`CPPFLAGS = -MMD`
			`AS=nasm`
			`ASFLAGS += -f elf32`
Makefile: some simplification 2021-11-04 20:26:31 +01:00			`LDFLAGS += -m elf_i386`
Disable vect from compiler Otherwise, this may produce vectorized instruction (mmx, sse ...) that will rise a EXCEPTION_INVALID_OPCODE 2019-05-16 23:45:45 +02:00			`CFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-pie -fno-stack-protector -fno-tree-vectorize`
stack_trace try to get function arguments 2018-11-19 13:56:19 +01:00			`CXXFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-rtti -fno-pie`
			`DEBUG_FLAGS += -g -Og -DDEBUG -fno-omit-frame-pointer -fno-inline`
Makefile: some simplification 2021-11-04 20:26:31 +01:00			`LIBGCC = $(shell $(CC) -print-libgcc-file-name $(CFLAGS))`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00
Add disk image option to makefile 2021-10-05 22:01:13 +02:00			`QEMU_OPT += -hda disk.img`
organize by arch 2020-04-27 23:45:38 +02:00			`ARCH?=x86`
			`SUBDIRS := core drivers tests arch/$(ARCH)`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00
Wrap IRQ, Exception, cpu_context to be ready for user Fix ASM where ebp was push 2 times. One by pushw ebp One by pushal later 2021-10-25 23:25:31 +02:00			`INCDIRS += $(foreach dir, $(SUBDIRS), -I$(dir))`
			`CPPFLAGS += $(INCDIRS)`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00
Makefile: all asm in Gnu AS 2021-10-31 00:04:01 +02:00			`asmsrc=`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00			`asmobj=$(asmsrc:%.asm=%.o)`
Makefile: all asm in Gnu AS 2021-10-31 00:04:01 +02:00			`gasmsrc=$(wildcard arch/$(ARCH)/.S arch/$(ARCH)/boot/.S)`
			`gasmobj=$(gasmsrc:%.S=%.o)`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00			`csrc=$(shell find $(SUBDIRS) -type f -name ".c")# $(wildcard .c)`
Makefile: all asm in Gnu AS 2021-10-31 00:04:01 +02:00			`cobj=$(csrc:%.c=%.o)`
			`deps=$(csrc:%.c=%.d) $(gasmsrc:%.S=%.d)`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00
Makefile: all asm in Gnu AS 2021-10-31 00:04:01 +02:00			`kernel kernel.sym &: $(asmobj) $(gasmobj) $(cobj) linker.ld`
Makefile: some simplification 2021-11-04 20:26:31 +01:00			`$(LD) $(LDFLAGS) $(asmobj) $(gasmobj) $(cobj) -o kernel -T linker.ld $(LIBGCC)`
Makefile: grouped targets for kernel.sym 2021-08-02 15:07:45 +02:00			`objcopy --only-keep-debug kernel kernel.sym`
			`objcopy --strip-debug kernel`
Can generate symbole file 2018-07-20 17:10:58 +02:00
Can generate iso image 2018-07-20 16:55:41 +02:00			`fd.iso: kernel`
			`mkdir -p isodir/boot/grub`
Makefile correction * fix fd.iso kernel path * add debug target 2018-08-05 14:12:18 +02:00			`cp $< isodir/boot/`
Fix iso generation echo -e does not work on ubuntu echo does. It's the opposite on archlinux... Use printf! 2019-05-12 22:56:51 +02:00			`@printf "menuentry \"myos\" {\n\tmultiboot /boot/kernel\n}" > isodir/boot/grub/grub.cfg`
Can generate iso image 2018-07-20 16:55:41 +02:00			`grub-mkrescue -o $@ isodir`

Add partition table support 2021-11-04 20:14:48 +01:00			`disk.img: disk.sfdisk`
			`qemu-img create -f raw $@ 32M`
			`sfdisk $@ < disk.sfdisk`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00
Makefile: some simplification 2021-11-04 20:26:31 +01:00			`# NASM without preprocessing`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00			`%.o:%.asm`
			`$(AS) $(ASFLAGS) -o $@ $<`

Makefile: some simplification 2021-11-04 20:26:31 +01:00			`#GNU GAS ASM with C Preprocessing`
Add context switch This is taken from SOS 2019-05-15 23:22:28 +02:00			`%.o: %.S`
Makefile: all asm in Gnu AS 2021-10-31 00:04:01 +02:00			`$(CC) $(CFLAGS) $(CPPFLAGS) -c "$<" -o "$@"`
Add context switch This is taken from SOS 2019-05-15 23:22:28 +02:00

Improve make target names 2021-01-26 17:58:33 +01:00			`test: CFLAGS += -DRUN_TEST`
Add target for disk img 2021-10-05 22:07:17 +02:00			`test: clean kernel disk.img`
Add disk image option to makefile 2021-10-05 22:01:13 +02:00			`qemu-system-x86_64 -kernel kernel -serial stdio -m 32M $(QEMU_OPT)`
Add some way to test kernel 2018-11-08 22:09:12 +01:00
Add target for disk img 2021-10-05 22:07:17 +02:00			`run:kernel disk.img`
Add disk image option to makefile 2021-10-05 22:01:13 +02:00			`qemu-system-x86_64 -kernel $< $(QEMU_OPT)`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00
Improve make target names 2021-01-26 17:58:33 +01:00			`debug: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST`
Add backtrace function 2018-11-16 14:47:21 +01:00			`debug: CXXFLAGS += $(DEBUG_FLAGS)`
Makefile correction * fix fd.iso kernel path * add debug target 2018-08-05 14:12:18 +02:00			`debug:kernel kernel.sym`
VGA: could be configured from MBI 2021-10-25 21:29:02 +02:00			`gdb -q -x debug.gdb`
Makefile correction * fix fd.iso kernel path * add debug target 2018-08-05 14:12:18 +02:00
Improve make target names 2021-01-26 17:58:33 +01:00			`debug_test: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST`
			`debug_test: debug`

Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00			`clean:`
Makefile: all asm in Gnu AS 2021-10-31 00:04:01 +02:00			`$(RM) kernel $(asmobj) $(gasmobj) $(cobj) $(deps) fd.iso kernel.sym`
Makefile: clean isodir 2019-01-09 17:21:51 +01:00			`$(RM) -r isodir`
Initial import from mbr_asm project 2018-07-20 15:41:58 +02:00
			`ifneq ($(MAKECMDGOALS),clean)`
			`-include $(deps)`
			`endif`