nachos：nachos-3.4-SDU.tar.gz

ubuntu：ubuntu-16.04.5-desktop-i386.iso

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安裝ubuntu 32位

將nachos-3.4-SDU.tar.gz壓縮文件復(fù)制到ubuntu，并解壓縮

在nachos-3.4-SDU目錄中打開終端，進入root模式，使用命令“cp -r gcc-2.8.1-mips.tar.gz /usr/local”命令將gcc-2.8.1-mips.tar.gz復(fù)制到/usr/local目錄下

在/usr/local目錄下使用終端解壓縮gcc-2.8.1-mips.tar.gz文件：tar -xvf gcc-2.8.1-mips.tar.gz

進入Nachos的目錄code/test（簡記為../test），

（1）刪除../test/arch/unknown-i386-linux/depends目錄下的所有文件；

（2）刪除../test/arch/unknown-i386-linux/objects目錄下的所有文件

（3）刪除../test目錄下的所有擴展名為.noff的文件

（4）運行make，如果交叉編譯器安裝成功，../test目錄下幾個.c文件都產(chǎn)生了一個對應(yīng)的.noff文件，同時屏幕應(yīng)輸出下述信息：

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>>>?Linking?arch/unknown-i386-linux/objects/halt.coff?<<<

/usr/local/mips/bin/decstation-ultrix-ld?-T?script?-N?arch/unknown-i386-linux/objects/start.o?arch/unknown-i386-linux/objects/halt.o?-o?arch/unknown-i386-linux/objects/halt.coff

>>>?Converting?to?noff?file:?arch/unknown-i386-linux/bin/halt?<<<

../bin/arch/unknown-i386-linux/bin/coff2noff?arch/unknown-i386-linux/objects/halt.coff?arch/unknown-i386-linux/bin/halt

numsections?3?

Loading?3?sections:

????".text",?filepos?0xd0,?mempos?0x0,?size?0x100

????".data",?filepos?0x1d0,?mempos?0x100,?size?0x0

????".bss",?filepos?0x0,?mempos?0x100,?size?0x0

ln?-sf?arch/unknown-i386-linux/bin/halt?halt

>>>?Linking?arch/unknown-i386-linux/objects/shell.coff?<<<

/usr/local/mips/bin/decstation-ultrix-ld?-T?script?-N?arch/unknown-i386-linux/objects/start.o?arch/unknown-i386-linux/objects/shell.o?-o?arch/unknown-i386-linux/objects/shell.coff

>>>?Converting?to?noff?file:?arch/unknown-i386-linux/bin/shell?<<<

../bin/arch/unknown-i386-linux/bin/coff2noff?arch/unknown-i386-linux/objects/shell.coff?arch/unknown-i386-linux/bin/shell

numsections?3?

Loading?3?sections:

????".text",?filepos?0xd0,?mempos?0x0,?size?0x200

????".data",?filepos?0x2d0,?mempos?0x200,?size?0x0

????".bss",?filepos?0x0,?mempos?0x200,?size?0x0

ln?-sf?arch/unknown-i386-linux/bin/shell?shell

>>>?Linking?arch/unknown-i386-linux/objects/matmult.coff?<<<

/usr/local/mips/bin/decstation-ultrix-ld?-T?script?-N?arch/unknown-i386-linux/objects/start.o?arch/unknown-i386-linux/objects/matmult.o?-o?arch/unknown-i386-linux/objects/matmult.coff

>>>?Converting?to?noff?file:?arch/unknown-i386-linux/bin/matmult?<<<

../bin/arch/unknown-i386-linux/bin/coff2noff?arch/unknown-i386-linux/objects/matmult.coff?arch/unknown-i386-linux/bin/matmult

numsections?3?

Loading?3?sections:

????".text",?filepos?0xd0,?mempos?0x0,?size?0x3c0

????".data",?filepos?0x490,?mempos?0x3c0,?size?0x0

????".bss",?filepos?0x0,?mempos?0x3c0,?size?0x12c0

ln?-sf?arch/unknown-i386-linux/bin/matmult?matmult

>>>?Linking?arch/unknown-i386-linux/objects/sort.coff?<<<

/usr/local/mips/bin/decstation-ultrix-ld?-T?script?-N?arch/unknown-i386-linux/objects/start.o?arch/unknown-i386-linux/objects/sort.o?-o?arch/unknown-i386-linux/objects/sort.coff

>>>?Converting?to?noff?file:?arch/unknown-i386-linux/bin/sort?<<<

../bin/arch/unknown-i386-linux/bin/coff2noff?arch/unknown-i386-linux/objects/sort.coff?arch/unknown-i386-linux/bin/sort

numsections?3?

Loading?3?sections:

????".text",?filepos?0xd0,?mempos?0x0,?size?0x2c0

????".data",?filepos?0x390,?mempos?0x2c0,?size?0x0

????".bss",?filepos?0x0,?mempos?0x2c0,?size?0x1000

ln?-sf?arch/unknown-i386-linux/bin/sort?sort

6. 在終端窗口下進入目錄code/threads/，運行make命令，可編譯生成一個基本的Nachos內(nèi)核（多線程）。編譯時如果屏幕輸出的最后幾行信息如下：

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....>>> Linking arch/unknown-i386-linux/bin/nachos <<<

g++ arch/unknown-i386-linux/objects/main.o ........................

..................................................................

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ln -sf arch/unknown-i386-linux/bin/nachos nachos

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表示已經(jīng)成功編譯生成了一個最小的Nachos內(nèi)核。目錄threads/下的文件nachos是一鏈接到可執(zhí)行程序arch/unknown-i386-linux/bin/nachos的鏈接文件。

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