How To Compiler udev (udevadm)

Linux 初學者, 對這邊核心程式的編譯方式一定會被搞瘋掉

有時間再寫一篇 udevadm 移殖到Eclipse中 Debug的流程

The options used usually look like:

# mkdir udev
# cd udev
# git clone git://git.kernel.org/pub/scm/linux/hotplug/udev.git git

# cd git
# apt-get install gtk-doc-tools





# ./autogen.sh --without-selinux --disable-extras --disable-introspection

# ./configure CFLAGS='-g -O1'  --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --with-selinux --enable-gtk-doc --with-rootprefix= --with-rootlibdir=/lib --bindir=/sbin --libexecdir=/lib --with-systemdsystemunitdir=/lib/systemd/system 

checking for BLKID... no
configure: error: Package requirements (blkid >= 2.20) were not met:
No package 'blkid' found

No blkid, need install libblkid-dev

# apt-get install libblkid-dev

# ./configure CFLAGS='-g -O1'  --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --with-selinux --enable-gtk-doc --with-rootprefix= --with-rootlibdir=/lib --bindir=/sbin --libexecdir=/lib --with-systemdsystemunitdir=/lib/systemd/system 

checking for KMOD... no
configure: error: Package requirements (libkmod >= 5) were not met:

No package 'libkmod' found






No 'libkmod', Need install libkmod-dev

# apt-get install libkmod-dev
# apt-get install libselinux-dev

# apt-get install libglib2.0-dev

# apt-get install libgirepository1.0-dev

# apt-get install gperf

# ./configure CFLAGS='-g -O1'  --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --with-selinux --enable-gtk-doc --with-rootprefix= --with-rootlibdir=/lib --bindir=/sbin --libexecdir=/lib --with-systemdsystemunitdir=/lib/systemd/system 

configure 完成, 會在目錄下發現一個 makefile 檔案！ 

可以開始進行 gcc make 動作

# make

編譯出現錯誤, 原來這個 mq_getattr 很久以前的功能,可以直接作廢.

# gedit /root/udev/git/src/sd-daemon.c

comment it out line 394 & 395 

 //        if (mq_getattr(fd, &attr) < 0)
 //              return -errno;

重新作執行一次 gcc make 動作
# make

# ./udevadm --version

182

請參考 Ubuntu udevadm用法

# ./udevadm info -q all -n /dev/sda | grep DEVPATH

可以使用 udevadm監控Hot Plug的狀態

# udevadm monitor