linux資料整理- kernel patch file (修補檔) 的入門~

整理自http://zhidao.baidu.com/question/1925815098992816627.html

-如何製作patch文件

比如基於kernel做了修改,修改了LCD原始碼，修改前的內容放在資料夾kernel下，修改後的內容放在資料夾kernel_new下，那麼製作patch文件的命令為diff -Naur kernel/ kernel_new/ > zwx-lcd.patch ，產生patch文件zwx-lcd.patch。

這個patch文件是描述文件的路徑信息和將第幾行內容刪除，在第幾行添加內容，刪除用減號，添加用加號~

-如何patch文件

整理自http://linux.byexamples.com/archives/163/how-to-create-patch-file-using-patch-and-diff/

patch --dry-run -p1 -i Tb02.patch

The success output looks like this:

patching file TbApi.cpp
patching file TbApi.h
patching file TbCard.cpp
...

The failure ouptut looks like this:

patching file TbCard.cpp
Hunk #2 FAILED at 585.
1 out of 2 hunks FAILED -- saving rejects to file TbCard.cpp.rej
patching file TbCard.h
Hunk #1 FAILED at 57.
Hunk #2 FAILED at 77.
Hunk #3 succeeded at 83 with fuzz 1 (offset -21 lines).
....

At last, if the dry-run is giving good result, do this and enjoy the compilation.

patch -p1 -i Tb02.patch