nachos 5.0j（java版）學(xué)習(xí)筆記一:環(huán)境搭建

梗概：

jdk安裝配置

proj1運(yùn)行

mips交叉編譯器(附完整代碼記錄）

proj2運(yùn)行(附完整代碼記錄）

nachos整理(包括proj1/2，項(xiàng)目源碼/使用說明/實(shí)驗(yàn)報(bào)告)

寫在前面：

nachos 5.0j可以在windows和Linux系統(tǒng)上運(yùn)行；
對(duì)于proj1，可以直接導(dǎo)入eclipse進(jìn)行編譯；
project2需要交叉編譯，而對(duì)于win系統(tǒng)中的此類的資料比較少，所以還是投向了linux的懷抱;（修改：后來，我發(fā)現(xiàn)，可以在Linux系統(tǒng)中交叉編譯，然后將coff文件拷貝到eclipse里就行。）
但是筆者的筆記本過于垃圾，不想和虛擬機(jī)作斗爭(zhēng)了，筆者最后用的是阿里云學(xué)生輕量級(jí)服務(wù)器(無圖形界面)；
下面我的環(huán)境搭建其實(shí)是針對(duì)無圖形界面的Linux系統(tǒng)的，當(dāng)然也適用于有圖形界面的Linux系統(tǒng)；

1.java開發(fā)環(huán)境：jdk的安裝配置

筆者用的是jdk-13_linux-x64_bin.tar.gz

解壓文件
$tar -xzvf jdk-13_linux-x64_bin.tar.gz
ps：為了保持接下來目錄一致，建議將解壓文件移動(dòng)到/root/usr/local/java目錄下

配置環(huán)境變量
$vi /etc/profile
在最后面添加幾句話:

# jdkexport JAVA_HOME=/root/usr/local/java/jdk-13export CLASSPATH=.:$JAVA_HOME/jre/bin/lib.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$PATH:$JAVA_HOME/bin

保存后，更新一下
#source /etc/profile

驗(yàn)證安裝是否成功
$ java -version
$ javac -version
以上兩個(gè)指令返回相應(yīng)的版本信息，即為安裝成功

2.運(yùn)行proj1

將nachos-java.tar.gz解壓

#tar -xzvf jdk-8u211-linux-x86.tar.gz

將nachos文件移動(dòng)到root/usr/wp文件夾下，為了方便配置環(huán)境變量，建議跟我的目錄一致，移動(dòng)完之后用pwd和ls命令檢驗(yàn)一下

# pwd /root/usr/wp/nachos # ls ag bin machine Makefile network proj1 proj2 proj3 proj4 README security test threads userprog vm

添加nochos/bin目錄到PATH環(huán)境變量

回到根目錄，用vi編輯器編輯/etc/profile

#vi /etc/profile

在/etc/profile文件尾部添加

# nachos excutation export PATH=$PATH:/root/usr/wp/nachos/bin

保存文件，更新一下

# source /etc/profile

在nochos/proj1目錄下，執(zhí)行編譯make、運(yùn)行nachos

root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/proj1# ls Makefile nachos nachos.conf root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/proj1# make javac -classpath . -d . -sourcepath ../.. -g ../threads/ThreadedKernel.java ../../nachos/threads/KThread.java:311: warning: 'yield' may become a restricted identifier in a future releasepublic void run() { while (true) yield(); }^(to invoke a method called yield, qualify the yield with a receiver or type name) Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: ../../nachos/machine/Lib.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 1 warning javac -classpath . -d . -sourcepath ../.. -g ../threads/Boat.java root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/proj1# nachos nachos 5.0j initializing... config interrupt timer user-check grader *** thread 0 looped 0 times *** thread 1 looped 0 times *** thread 0 looped 1 times *** thread 1 looped 1 times *** thread 0 looped 2 times *** thread 1 looped 2 times *** thread 0 looped 3 times *** thread 1 looped 3 times *** thread 0 looped 4 times *** thread 1 looped 4 times Machine halting!Ticks: total 2130, kernel 2130, user 0 Disk I/O: reads 0, writes 0 Console I/O: reads 0, writes 0 Paging: page faults 0, TLB misses 0 Network I/O: received 0, sent 0

此后，便可以修改代碼，完成proj1的相關(guān)問題了，make命令-對(duì)整個(gè)項(xiàng)目進(jìn)行編譯，nachos命令-運(yùn)行項(xiàng)目

3.mips交叉編譯器

將mips-x86.linux-xgcc.tgz解壓到nachos目錄下
進(jìn)入nachos/test目錄下，配置環(huán)境變量

# export ARCHDIR=../mips-x86.linux-xgcc # export PATH=/root/usr/wp/nachos/mips-x86.linux-xgcc:$PATH

檢驗(yàn)一下

# echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/root/usr/local/java/jdk-13/bin:/root/usr/wp/nachos/bin

編譯

#make clean #make

完整操作記錄：

root@iZ2ze1vavqma9q8lhrqq6wZ:~# echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/root/usr/local/java/jdk-13/bin:/root/usr/wp/nachos/bin root@iZ2ze1vavqma9q8lhrqq6wZ:~# cd usr/wp/nachos root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos# ls ag bin machine Makefile mips-x86.linux-xgcc mips-x86.linux-xgcc.tgz network proj1 proj2 proj3 proj4 README security test threads userprog vm root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos# cd test root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/test# echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/root/usr/local/java/jdk-13/bin:/root/usr/wp/nachos/bin root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/test# export ARCHDIR=../mips-x86.linux-xgcc root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/test# export PATH=/root/usr/wp/nachos/mips-x86.linux-xgcc:$PATH root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/test# echo $PATH /root/usr/wp/nachos/mips-x86.linux-xgcc:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/root/usr/local/java/jdk-13/bin:/root/usr/wp/nachos/bin root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/test# make clean rm -f strt.s *.o *.coff libnachos.a root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/test# make ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c assert.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a assert.o a - assert.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c atoi.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a atoi.o a - atoi.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c printf.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a printf.o a - printf.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c readline.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a readline.o a - readline.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c stdio.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a stdio.o a - stdio.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c strncmp.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a strncmp.o a - strncmp.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c strcat.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a strcat.o a - strcat.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c strcmp.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a strcmp.o a - strcmp.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c strcpy.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a strcpy.o a - strcpy.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c strlen.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a strlen.o a - strlen.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c memcpy.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a memcpy.o a - memcpy.o ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c memset.c ../mips-x86.linux-xgcc/mips-ar rv libnachos.a memset.o a - memset.o ../mips-x86.linux-xgcc/mips-cpp start.s > strt.s ../mips-x86.linux-xgcc/mips-as -mips1 -o start.o strt.s rm strt.s ../mips-x86.linux-xgcc/mips-ranlib libnachos.a ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c halt.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o halt.coff halt.o start.o -lnachos ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c sh.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o sh.coff sh.o start.o -lnachos ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c matmult.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o matmult.coff matmult.o start.o -lnachos ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c sort.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o sort.coff sort.o start.o -lnachos ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c echo.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o echo.coff echo.o start.o -lnachos ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c cat.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o cat.coff cat.o start.o -lnachos ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c cp.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o cp.coff cp.o start.o -lnachos ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c mv.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o mv.coff mv.o start.o -lnachos ../mips-x86.linux-xgcc/mips-gcc -O2 -B../mips-x86.linux-xgcc/mips- -G 0 -Wa,-mips1 -nostdlib -ffreestanding -c rm.c ../mips-x86.linux-xgcc/mips-ld -s -T script -N -warn-common -warn-constructors -warn-multiple-gp -o rm.coff rm.o start.o -lnachos

4.運(yùn)行proj2

進(jìn)入proj2
編譯

#make

將test中的halt.coff復(fù)制到proj2

# cp ../test/halt.coff ../proj2

運(yùn)行

# nachos -x halt.coff

完整記錄如下：

root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/test# cd ../proj2 root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/proj2# make javac -classpath . -d . -sourcepath ../.. -g ../userprog/UserKernel.java ../../nachos/threads/KThread.java:311: warning: 'yield' may become a restricted identifier in a future releasepublic void run() { while (true) yield(); }^(to invoke a method called yield, qualify the yield with a receiver or type name) Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: ../../nachos/machine/Lib.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 1 warning javac -classpath . -d . -sourcepath ../.. -g ../threads/Boat.java root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/proj2# cp ../test/halt.coff ../proj2 root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/proj2# ls halt.coff Makefile nachos nachos.conf root@iZ2ze1vavqma9q8lhrqq6wZ:~/usr/wp/nachos/proj2# nachos -x halt.coff nachos 5.0j initializing... config interrupt timer processor console user-check grader *** thread 0 looped 0 times *** thread 1 looped 0 times *** thread 0 looped 1 times *** thread 1 looped 1 times *** thread 0 looped 2 times *** thread 1 looped 2 times *** thread 0 looped 3 times *** thread 1 looped 3 times *** thread 0 looped 4 times *** thread 1 looped 4 times Testing the console device. Typed characters will be echoed until q is typed.

接下來就可以開始著手proj2的相關(guān)問題了。

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