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68 lines
2.2 KiB
68 lines
2.2 KiB
# Used to generated .d file that deal with header dependencies
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CPPFLAGS = -MMD
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AS=nasm
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ASFLAGS += -f elf32
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#LDFLAGS += -m32 -nostdlib -mkernel -fno-stack-protector
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LDFLAGS += -m32 -nostdlib -static -fno-common -fno-use-cxa-atexit -fno-exceptions -fno-non-call-exceptions -fno-weak -fno-rtti -fno-stack-protector
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CFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-pie -fno-stack-protector -fno-tree-vectorize
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CXXFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-rtti -fno-pie
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DEBUG_FLAGS += -g -Og -DDEBUG -fno-omit-frame-pointer -fno-inline
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QEMU_OPT += -hda disk.img
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ARCH?=x86
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SUBDIRS := core drivers tests arch/$(ARCH)
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CPPFLAGS += $(foreach dir, $(SUBDIRS), -I$(dir))
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asmsrc=$(wildcard arch/$(ARCH)/boot/*.asm)
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asmobj=$(asmsrc:%.asm=%.o)
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csrc=$(shell find $(SUBDIRS) -type f -name "*.c")# $(wildcard *.c)
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cobj=$(csrc:%.c=%.o) arch/$(ARCH)/cpu_context_switch.o arch/$(ARCH)/irq_pit.o arch/$(ARCH)/irq_wrappers.o arch/$(ARCH)/exception_wrappers.o
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deps = $(csrc:%.c=%.d)
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kernel kernel.sym &: $(asmobj) $(cobj) linker.ld
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$(CC) -m32 -ffreestanding -nostdlib $(cobj) $(asmobj) -o kernel -T linker.ld -lgcc
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objcopy --only-keep-debug kernel kernel.sym
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objcopy --strip-debug kernel
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fd.iso: kernel
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mkdir -p isodir/boot/grub
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cp $< isodir/boot/
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@printf "menuentry \"myos\" {\n\tmultiboot /boot/kernel\n}" > isodir/boot/grub/grub.cfg
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grub-mkrescue -o $@ isodir
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disk.img:
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qemu-img create -f qcow2 disk.img 32M
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%.o:%.asm
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$(AS) $(ASFLAGS) -o $@ $<
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%.o: %.S
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$(CC) "-I$(PWD)" -c "$<" $(CFLAGS) -o "$@"
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test: CFLAGS += -DRUN_TEST
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test: clean kernel disk.img
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qemu-system-x86_64 -kernel kernel -serial stdio -m 32M $(QEMU_OPT)
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run:kernel disk.img
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qemu-system-x86_64 -kernel $< $(QEMU_OPT)
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debug: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST
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debug: CXXFLAGS += $(DEBUG_FLAGS)
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debug:kernel kernel.sym
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#qemu-system-x86_64 -s -S -kernel kernel&
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#qemu-system-i386 -s -S -kernel kernel&
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#gdb -s kernel.sym -ex "target remote localhost:1234" -ex "dir core:driver:arch/$(ARCH))'"
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gdb -x debug.gdb
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debug_test: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST
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debug_test: debug
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clean:
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$(RM) kernel $(asmobj) $(cobj) $(deps) fd.iso kernel.sym
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$(RM) -r isodir
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ifneq ($(MAKECMDGOALS),clean)
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-include $(deps)
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endif
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