一. Android根目录下 建立 .gitignore文件，内容为：

*.bak
*.[o]
*~
*.swp
*.swo
*.bak
out/
v8.log
R.java
*.img
*.log
default.properties
bin/
gen/
*.tmp
*.db
*.classpath
packages/apps/*/.classpath
packages/apps/Settings/tests/.classpath
packages/apps/Launcher2/lint.xml
&1
.svn/
.goutputstream*
project.properties
.project

二. kernel目录，可再建一个单独的 .gitignore

#
# NOTE! Don't add files that are generated in specific
# subdirectories here. Add them in the ".gitignore" file
# in that subdirectory instead.
#
# NOTE! Please use 'git ls-files -i --exclude-standard'
# command after changing this file, to see if there are
# any tracked files which get ignored after the change.
#
# Normal rules
#
.*
*.o
*.o.*
*.a
*.s
*.ko
*.so
*.so.dbg
*.mod.c
*.i
*.lst
*.symtypes
*.order
modules.builtin
*.elf
*.bin
*.gz
*.bz2
*.lzma
*.lzo
*.patch
*.gcno

#
# Top-level generic files
#
/tags
/TAGS
/linux
/vmlinux
/vmlinuz
/System.map
/module.markers
/Module.symvers

#
# git files that we don't want to ignore even it they are dot-files
#
!.gitignore
!.mailmap

#
# Generated include files
#
include/config
include/linux/version.h
include/generated

# stgit generated dirs
patches-*

# quilt's files
patches
series

# cscope files
cscope.*
ncscope.*

# gnu global files
GPATH
GRTAGS
GSYMS
GTAGS

*.orig
*~
\#*#

Android Git忽略规则