完善内核build系统

.gitignore

@@ -3,3 +3,4 @@
 *.o
 *.map
 *.elf
+metaverse_kernel

Makefile

@@ -1,13 +1,27 @@
-.PHONY: all clear run debug
+SOURCE := $(shell pwd)/src/scripts
 
-all:
+.PHONY: all clear run debug config
+
+all: config
 	@make -C src all --no-print-directory
 
-clear:
+clear: config
 	@make -C src clear --no-print-directory
 
-run:
+run: config
 	@make -C test run --no-print-directory
 
-debug:
+debug: config
 	@make -C test debug --no-print-directory
+
+config:
+	@if [ "${shell uname -s}" != "Linux" ]; then \
+		echo -e "\e[1;33mMetaverse\e[0m must build under \e[1;35mLinux\e[0m or itself."; \
+		exit -1; \
+	fi
+	@if [ -f "metaverse_kernel" ]; then \
+		echo; \
+	else \
+		touch metaverse_kernel; \
+		"${SOURCE}/depcheck"; \
+	fi

src/kernel/Makefile

@@ -56,8 +56,10 @@ VPATH = memm/ memm/allocator tty/ klog/ arch/${ARCH}
 
 %.32.o: arch/${ARCH}/%.s
 	@echo -e "\e[1m\e[33m${ASM}\e[0m \e[32m$<\e[0m \e[34m-->\e[0m \e[1m\e[32m$@\e[0m"
-	@${ASM} ${ASMFLAGS32} -o $@ $< 2>&1 | "${SOURCE}/colorize" "warning:=pink" "error:=red"
-	@objcopy -I elf32-i386 -O elf64-x86-64 $@ $@ 2>&1 | "${SOURCE}/colorize" "warning:=pink" "error:=red" "objcopy=lyellow"
+	@${ASM} ${ASMFLAGS32} -o $@ $< 2>&1 \
+		| "${SOURCE}/colorize" "warning:=pink" "error:=red"
+	@objcopy -I elf32-i386 -O elf64-x86-64 $@ $@ 2>&1 \
+		| "${SOURCE}/colorize" "warning:=pink" "error:=red" "objcopy=lyellow"
 
 %.o: arch/${ARCH}/%.s
 	@echo -e "\e[1m\e[33m${ASM}\e[0m \e[32m$<\e[0m \e[34m-->\e[0m \e[1m\e[32m$@\e[0m"

src/scripts/depcheck

@@ -0,0 +1,79 @@
+#!/usr/bin/python
+
+import subprocess
+import os
+
+color = {
+    'black': '\033[30m',
+    'red': '\033[31m',
+    'green': '\033[32m',
+    'yellow': '\033[33m',
+    'blue': '\033[34m',
+    'pink': '\033[35m',
+    'cyan': '\033[36m',
+    'white': '\033[37m',
+    'lblack': '\033[1;30m',
+    'lred': '\033[1;31m',
+    'lgreen': '\033[1;32m',
+    'lyellow': '\033[1;33m',
+    'lblue': '\033[1;34m',
+    'lpink': '\033[1;35m',
+    'lcyan': '\033[1;36m',
+    'lwhite': '\033[1;37m',
+    'reset': '\033[0m',
+}
+
+arch = subprocess.check_output("uname -m", shell=True).decode().strip()
+
+
+kernel_modules = [
+    "nbd",
+]
+
+softwares = {
+    "doas": ["doas"],
+    "gcc": ["gcc"],
+    "nasm": ["nasm"],
+    "rust": ["rustc", "rustdoc", "rust-lldb"],
+    "qemu": ["qemu-img", "qemu-nbd", "qemu-system-"+arch],
+}
+
+
+# 检查内核模块
+lsmodoutput = subprocess.check_output("lsmod", shell=True).decode()
+print("Checking kernel modules ...")
+for mod in kernel_modules:
+    mmod = "\n" + mod
+    mmod += " "
+    if mmod in lsmodoutput:
+        print("  " + color['lpink'] + f"{mod}" + color['reset'] + " exists.")
+    else:
+        print("  " + color['lred'] + f"{mod}" + color['reset'] + " not found.")
+        print("Kernel module " +
+              color['lred'] + f"{mod}" + color['reset'] + " is not installed.")
+        exit(-1)
+
+# 检查软件依赖
+pathsenv = os.environ.get("PATH").split(":")
+for software, progs in softwares.items():
+    print("Checking " + color['lcyan'] +
+          f"{software}" + color['reset'] + " ...")
+    for program in progs:
+        exists = False
+        for path in pathsenv:
+            if os.path.isfile(os.path.join(path, program)):
+                exists = True
+                break
+        if exists:
+            print("  " + color['lyellow'] +
+                  f"{program}" + color['reset'] + " existed.")
+        else:
+            print("  " + color['lred'] +
+                  f"{program}" + color['reset'] + " not found.")
+
+            print("Software " + color['lred'] + f"{software}" +
+                  color['reset'] + " is not installed or completed.")
+            exit(-2)
+
+print("All dependencies are " +
+      color['lgreen'] + "satisfied." + color['reset'])

test/Makefile

@@ -6,45 +6,45 @@ ARCH := $(shell uname -m)
 BIOS = bios/${ARCH}/OVMF_CODE.fd
 
 run:
-	@sudo modprobe nbd
+	@doas modprobe nbd
 	@make load
-	@qemu-system-x86_64 -m 4G metaverse.img -bios ${BIOS}
+	@qemu-system-${ARCH} -m 4G metaverse.img -bios ${BIOS}
 
 debug:
 	@echo "在gdb中连接远程目标'localhost:1234'即可"
-	@sudo modprobe nbd
+	@doas modprobe nbd
 	@make load
-	@qemu-system-x86_64 -m 4G metaverse.img -bios ${BIOS} -s -S
+	@qemu-system-${ARCH} -m 4G metaverse.img -bios ${BIOS} -s -S
 
 create:
 	@qemu-img create -f qcow2 metaverse.img 512M
-	@sudo modprobe nbd
-	@sudo qemu-nbd --connect=/dev/nbd0 metaverse.img
-	@sudo partprobe /dev/nbd0
+	@doas modprobe nbd
+	@doas qemu-nbd --connect=/dev/nbd0 metaverse.img
+	@doas partprobe /dev/nbd0
 	@echo "你需要为这个虚拟磁盘写入一个GPT分区表并分出efi分区和根分区。"
-	@sudo fdisk /dev/nbd0
-	@sudo mkfs.fat -F 32 /dev/nbd0p1
-	@sudo mkfs.fat -F 32 /dev/nbd0p2
-	@sudo mount /dev/nbd0p2 mnt/
-	@sudo mount -m /dev/nbd0p1 mnt/boot/
-	@sudo mkdir mnt/boot/EFI/
+	@doas fdisk /dev/nbd0
+	@doas mkfs.fat -F 32 /dev/nbd0p1
+	@doas mkfs.fat -F 32 /dev/nbd0p2
+	@doas mount /dev/nbd0p2 mnt/
+	@doas mount -m /dev/nbd0p1 mnt/boot/
+	@doas mkdir mnt/boot/EFI/
 	@make unmount
 
 load:
 	@echo loading kernel ...
 	@make mount
-	@sudo cp ${TARGET} mnt/boot/
+	@doas cp ${TARGET} mnt/boot/
 	@make unmount
 
 mount:
-	@sudo modprobe nbd
-	@sudo qemu-nbd --connect=/dev/nbd0 metaverse.img
-	@sudo partprobe /dev/nbd0
-	@sudo mount /dev/nbd0p2 mnt/
-	@sudo mount /dev/nbd0p1 mnt/boot/
+	@doas modprobe nbd
+	@doas qemu-nbd --connect=/dev/nbd0 metaverse.img
+	@doas partprobe /dev/nbd0
+	@doas mount /dev/nbd0p2 mnt/
+	@doas mount /dev/nbd0p1 mnt/boot/
 
 unmount:
 	@sync
-	@sudo umount /dev/nbd0p1
-	@sudo umount /dev/nbd0p2
-	@sudo qemu-nbd --disconnect /dev/nbd0
+	@doas umount /dev/nbd0p1
+	@doas umount /dev/nbd0p2
+	@doas qemu-nbd --disconnect /dev/nbd0