Building Ubuntu Kernels with Debug Symbols (by quqi99)

作者：张华  发表于：2016-02-25

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( http://blog.csdn.net/quqi99 )

使用gdb或者crash时需要debug symbols, 可以从http://ddebs.ubuntu.com/pool/main/l/linux/下载，但有时候里面没有需要自己生成，下需方法使用了debian/rules脚本来为Ubuntu Kernel生成debug symbols, 所以它不需要注释的那些make命令， 这个脚本会自动生成.config文件，如果要修改可以使用fakeroot debian/rules editconfigs命令。如果使用的是社区的Kernel, 默认的.config文件应该已经包括了生成debug symbols的配置(CONFIG_KALLSYMS=y & CONFIG_KALLSYMS_ALL=y)。

sudo apt-get build-dep linux-image-$(uname -r)   #需要添加附录中的deb-src源

git clone git://kernel.ubuntu.com/ubuntu/linux.git ubuntu-linux
#git clone --reference ubuntu-linux git://kernel.ubuntu.com/ubuntu/ubuntu-vivid.git
git clone --reference ubuntu-linux git://kernel.ubuntu.com/ubuntu/ubuntu-xenial.git
cd ubuntu-xenial
git tag -l Ubuntu-*
git checkout -b Ubuntu-4.4.0-0.10 Ubuntu-4.4.0-0.10

sudo apt-get install fakeroot pkg-config-dbgsym git build-essential kernel-package kernel-wedge
sudo apt-get install libncurses5-dev qt4-dev-tools

sudo apt-get install libncurses5-dev kernel-package fakeroot build-essential crash kexec-tools makedumpfile kernel-wedge libelf-dev asciidoc binutils-dev pkg-config-dbgsym

#make xconfig             #or make menuconfig
#make localmodconfig      #speed compliling time for test
#make-kpkg                #a script which automates and replaces the sequence "make dep; make clean; make bzImage; make modules"
#make mrproper
#git reset --hard HEAD
fakeroot debian/rules clean
#fakeroot debian/rules editconfigs
fakeroot debian/rules DEB_BUILD_OPTIONS=parallel=4 clean binary-generic binary-headers skipdbg=false

附录, source.list：

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://no.archive.ubuntu.com/ubuntu/ vivid main restricted
deb-src http://no.archive.ubuntu.com/ubuntu/ vivid main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://no.archive.ubuntu.com/ubuntu/ vivid-updates main restricted
deb-src http://no.archive.ubuntu.com/ubuntu/ vivid-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://no.archive.ubuntu.com/ubuntu/ vivid universe
deb-src http://no.archive.ubuntu.com/ubuntu/ vivid universe
deb http://no.archive.ubuntu.com/ubuntu/ vivid-updates universe
deb-src http://no.archive.ubuntu.com/ubuntu/ vivid-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://no.archive.ubuntu.com/ubuntu/ vivid multiverse
deb-src http://no.archive.ubuntu.com/ubuntu/ vivid multiverse
deb http://no.archive.ubuntu.com/ubuntu/ vivid-updates multiverse
deb-src http://no.archive.ubuntu.com/ubuntu/ vivid-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://no.archive.ubuntu.com/ubuntu/ vivid-backports main restricted universe multiverse
deb-src http://no.archive.ubuntu.com/ubuntu/ vivid-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu vivid-security main restricted
deb-src http://security.ubuntu.com/ubuntu vivid-security main restricted
deb http://security.ubuntu.com/ubuntu vivid-security universe
deb-src http://security.ubuntu.com/ubuntu vivid-security universe
deb http://security.ubuntu.com/ubuntu vivid-security multiverse
deb-src http://security.ubuntu.com/ubuntu vivid-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu vivid partner
# deb-src http://archive.canonical.com/ubuntu vivid partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
# deb http://extras.ubuntu.com/ubuntu vivid main
# deb-src http://extras.ubuntu.com/ubuntu vivid main

## Debugging symbols
deb http://ddebs.ubuntu.com vivid main restricted universe multiverse
deb http://ddebs.ubuntu.com vivid-updates main restricted universe multiverse
deb http://ddebs.ubuntu.com vivid-proposed main restricted universe multiverse