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This project forked from run/linux0.11
Linux内核考古....
linux-0.11 development environment(linux-based) falcon <[email protected]> update: 2008-10-15 NOTE: you can download the whole dev environment from http://mirror.lzu.edu.cn/software/linux-0.11/linux-0.11-for-gcc4.3.2.tar.gz Here is just the source code of linux-0.11 for gcc 4.3.2. 1. preparation * a linux distribution: debian and ubuntu are recommended * a virtual machine: qemu(recommend) or bochs * some tools: cscope, ctags, gcc-4.3(or 4.1,4.2,3.4), vim, bash, gdb, dd, qemu, xorg-dev, xserver-xorg-dev... $ apt-get install qemu cscope exuberant-ctags gcc-4.3 vim-full bash gdb build-essential hex graphviz xorg-dev xserver-xorg-dev vgabios libxpm-dev bochs bochs-x bochsbios bximage * a linux-0.11 hardware image file: hdc-0.11-new.img, please download it from http://www.oldlinux.org, or http://mirror.lzu.edu.cn/os/oldlinux.org/, after downloading it, you'd put it in linux-0.11/fs/ directory. and you'd better install tools/calltree, tools/tree2dotx yourself: just copy them to /usr/bin, of course, you'd compile calltree at first. 2. hack linux-0.11 get help from the main Makefile of linux-0.11 and star to hack it. $ cd linux-0.11 $ make help // get help $ make // compile $ make start // boot it on qemu $ make debug // debug it via qemu & gdb, you'd start gdb to connect it. $ make tags // create the tag file from the source code $ make cscope // create the cscope index database from the source code NOTE! there is a calltree in tools/, which can help you to analyze the source code via printing the calling tree of some indicated functions. compile $ cd tools/calltree-2.3 install $ sudo cp ./calltree/OBJ/i686-linux-cc/calltree /usr/bin use $ calltree // just type calltree and get the help 3. debug start the kernel with qemu, which will listening on port 1234 $ cd linux-0.11 $ make debug open a new terminal, start gdb and connect the gdbstub in qemu $ gdb linux-0.11/tools/system (gdb) break main (gdb) target remote localhost:1234 (gdb) s // si:assembly instruction, s|n: c statement(s will enter into subfunc) (gdb) ... References & Links [1] http://oss.lzu.edu.cn/blog/article.php?tid_1693.html [2] http://oss.lzu.edu.cn/modules/newbb/viewtopic.php?topic_id=1403&forum=35
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