131 lines
3.9 KiB
Makefile
131 lines
3.9 KiB
Makefile
# AsterOS build systém
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ARCH := x86_64
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# Prefer dedicated cross toolchain, fallback to host toolchain when unavailable.
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CROSS ?= $(shell if command -v x86_64-elf-gcc >/dev/null 2>&1; then echo x86_64-elf-; else echo; fi)
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CC := $(CROSS)gcc
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LD := $(CROSS)ld
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OBJCOPY := $(CROSS)objcopy
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AS := nasm
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CFLAGS := -std=gnu11 -ffreestanding -fno-stack-protector -fno-pic -m64 -Wall -Wextra -Iinclude
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LDFLAGS := -nostdlib -T linker.ld
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BUILD := build
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IMG := $(BUILD)/aster.img
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DATA_DISK := asterfs.img
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BRIDGE_IF ?= br0
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SYSAPP_SRCS := $(wildcard sysapps/*.c)
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SYSAPP_OBJS := $(patsubst sysapps/%.c,$(BUILD)/sysapps/%.o,$(SYSAPP_SRCS))
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SYSAPP_REGISTRY_SRC := $(BUILD)/kernel/sysapps_registry.c
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SYSAPP_REGISTRY_OBJ := $(BUILD)/kernel/sysapps_registry.o
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KERNEL_OBJS := \
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$(BUILD)/arch/x86_64/entry.o \
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$(BUILD)/arch/x86_64/gdt.o \
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$(BUILD)/arch/x86_64/idt.o \
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$(BUILD)/arch/x86_64/interrupts.o \
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$(BUILD)/arch/x86_64/cpu.o \
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$(BUILD)/kernel/main.o \
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$(BUILD)/kernel/bootlog.o \
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$(BUILD)/kernel/panic.o \
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$(BUILD)/kernel/printk.o \
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$(BUILD)/kernel/memory.o \
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$(BUILD)/kernel/process.o \
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$(BUILD)/kernel/scheduler.o \
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$(BUILD)/kernel/syscall.o \
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$(BUILD)/kernel/aster_api.o \
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$(BUILD)/kernel/string.o \
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$(BUILD)/drivers/display.o \
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$(BUILD)/drivers/keyboard.o \
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$(BUILD)/drivers/serial.o \
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$(BUILD)/drivers/timer.o \
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$(BUILD)/drivers/storage.o \
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$(BUILD)/apps/calc_app.o \
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$(BUILD)/apps/tetris_app.o \
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$(SYSAPP_REGISTRY_OBJ) \
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$(SYSAPP_OBJS)
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all: $(IMG)
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$(BUILD):
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mkdir -p $(BUILD)/boot $(BUILD)/kernel $(BUILD)/arch/x86_64 $(BUILD)/drivers $(BUILD)/apps $(BUILD)/sysapps
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$(BUILD)/boot/boot.bin: boot/boot.asm | $(BUILD)
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$(AS) -f bin $< -o $@
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$(BUILD)/boot/kernel_sectors.inc: $(BUILD)/kernel.bin | $(BUILD)
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mkdir -p $(dir $@)
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@size=$$(wc -c < $(BUILD)/kernel.bin); \
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sectors=$$(( (size + 511) / 512 )); \
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if [ $$sectors -lt 1 ]; then sectors=1; fi; \
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echo "; auto-generated from build/kernel.bin" > $@; \
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echo "KERNEL_SECTORS equ $$sectors" >> $@
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$(BUILD)/boot/stage2.bin: boot/stage2.asm boot/disk.asm $(BUILD)/boot/kernel_sectors.inc | $(BUILD)
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$(AS) -I boot/ -I $(BUILD)/boot/ -f bin $< -o $@
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$(BUILD)/arch/x86_64/%.o: arch/x86_64/%.asm | $(BUILD)
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$(AS) -f elf64 $< -o $@
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$(BUILD)/arch/x86_64/%.o: arch/x86_64/%.c | $(BUILD)
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$(CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/kernel/%.o: kernel/%.c | $(BUILD)
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$(CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/drivers/%.o: drivers/%.c | $(BUILD)
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$(CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/apps/%.o: apps/%.c | $(BUILD)
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$(CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/sysapps/%.o: sysapps/%.c | $(BUILD)
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mkdir -p $(dir $@)
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$(CC) $(CFLAGS) -Dinit=sysapp_init_$* -c $< -o $@
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$(SYSAPP_REGISTRY_SRC): $(SYSAPP_SRCS) | $(BUILD)
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mkdir -p $(dir $@)
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@{ \
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echo '#include "sysapps_runtime.h"'; \
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for f in $(SYSAPP_SRCS); do \
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n=$${f##*/}; n=$${n%.c}; \
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echo "extern void sysapp_init_$${n}(void);"; \
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done; \
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echo 'const sysapp_entry_t g_sysapps[] = {'; \
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for f in $(SYSAPP_SRCS); do \
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n=$${f##*/}; n=$${n%.c}; \
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echo " {\"$${n}\", sysapp_init_$${n}},"; \
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done; \
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echo ' {0, 0}'; \
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echo '};'; \
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} > $@
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$(SYSAPP_REGISTRY_OBJ): $(SYSAPP_REGISTRY_SRC)
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$(CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/kernel.elf: $(KERNEL_OBJS) linker.ld
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$(LD) $(LDFLAGS) -o $@ $(KERNEL_OBJS)
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$(BUILD)/kernel.bin: $(BUILD)/kernel.elf
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$(OBJCOPY) -O binary $< $@
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$(IMG): $(BUILD)/boot/boot.bin $(BUILD)/boot/stage2.bin $(BUILD)/kernel.bin
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dd if=/dev/zero of=$(IMG) bs=512 count=2880
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dd if=$(BUILD)/boot/boot.bin of=$(IMG) conv=notrunc
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dd if=$(BUILD)/boot/stage2.bin of=$(IMG) bs=512 seek=1 conv=notrunc
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dd if=$(BUILD)/kernel.bin of=$(IMG) bs=512 seek=17 conv=notrunc
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$(DATA_DISK):
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if [ -f $(BUILD)/asterfs.img ] && [ ! -f $(DATA_DISK) ]; then cp $(BUILD)/asterfs.img $(DATA_DISK); fi
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test -f $(DATA_DISK) || dd if=/dev/zero of=$(DATA_DISK) bs=512 count=8192
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run: $(IMG) $(DATA_DISK)
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qemu-system-x86_64 -drive format=raw,file=$(IMG),if=ide,index=0 -drive format=raw,file=$(DATA_DISK),if=ide,index=1
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clean:
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rm -rf $(BUILD)
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.PHONY: all run clean
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