环境

系统：Linux luogw-pc 3.5.0-36-generic #57~precise1-Ubuntu SMP Thu Jun 20 18:21:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

ndk: ndk-r8d

cache: ccache version 3.1.6

第一步：安装ccache

sudo apt-get install ccache

第二步：配置ccache

添加环境变量 export NDK_CCACHE=ccache

第三步：修改 android-ndk-r8e/build/core/default-build-commands.mk

注：红色部份为修改的内容，原内容被注释掉

# IMPORTANT: The following definitions must use lazy assignment because

# the value of TOOLCHAIN_PREFIX or TARGET_CFLAGS can be changed later by

# the toolchain's setup.mk script.

ifneq ($(findstring ccc-analyzer,$(CC)),)

TARGET_CC = $(CC)

else

#TARGET_CC = $(TOOLCHAIN_PREFIX)gcc

TARGET_CC = ccache $(TOOLCHAIN_PREFIX)gcc

endif

TARGET_CFLAGS =

ifneq ($(findstring c++-analyzer,$(CXX)),)

TARGET_CXX = $(CXX)

else

#TARGET_CXX = $(TOOLCHAIN_PREFIX)g++

TARGET_CXX = ccache $(TOOLCHAIN_PREFIX)g++

endif

TARGET_CXXFLAGS = $(TARGET_CFLAGS) -fno-exceptions -fno-rtti

实践对比：

使用ccache前后情况对比如下

luogw@luogw-pc:~/study/bitmap-plasma$ ccache -scache directory                     /home/luogw/.ccachecache hit (direct)                     0cache hit (preprocessed)               0cache miss                             0files in cache                         0cache size                             0 Kbytesmax cache size                       1.0 Gbytesluogw@luogw-pc:~/study/bitmap-plasma$ time ndk-buildGdbserver      : [arm-linux-androideabi-4.7] libs/armeabi/gdbserverGdbsetup       : libs/armeabi/gdb.setupGdbserver      : [arm-linux-androideabi-4.7] libs/armeabi-v7a/gdbserverGdbsetup       : libs/armeabi-v7a/gdb.setupCompile thumb  : plasma <= plasma.cSharedLibrary  : libplasma.soInstall        : libplasma.so => libs/armeabi/libplasma.soCompile thumb  : plasma <= plasma.cSharedLibrary  : libplasma.soInstall        : libplasma.so => libs/armeabi-v7a/libplasma.soreal	0m0.226suser	0m0.128ssys	0m0.032sluogw@luogw-pc:~/study/bitmap-plasma$ ccache -scache directory                     /home/luogw/.ccachecache hit (direct)                     0cache hit (preprocessed)               0cache miss                             2called for link                        2multiple source files                  2files in cache                         6cache size                           108 Kbytesmax cache size                       1.0 Gbytesluogw@luogw-pc:~/study/bitmap-plasma$ rm -r libs/ obj/luogw@luogw-pc:~/study/bitmap-plasma$ time ndk-buildGdbserver      : [arm-linux-androideabi-4.7] libs/armeabi/gdbserverGdbsetup       : libs/armeabi/gdb.setupGdbserver      : [arm-linux-androideabi-4.7] libs/armeabi-v7a/gdbserverGdbsetup       : libs/armeabi-v7a/gdb.setupCompile thumb  : plasma <= plasma.cSharedLibrary  : libplasma.soInstall        : libplasma.so => libs/armeabi/libplasma.soCompile thumb  : plasma <= plasma.cSharedLibrary  : libplasma.soInstall        : libplasma.so => libs/armeabi-v7a/libplasma.soreal	0m0.114suser	0m0.052ssys	0m0.008sluogw@luogw-pc:~/study/bitmap-plasma$ ccache -scache directory                     /home/luogw/.ccachecache hit (direct)                     2cache hit (preprocessed)               0cache miss                             2called for link                        4multiple source files                  4files in cache                         6cache size                           108 Kbytesmax cache size                       1.0 Gbytes

参考文章：

1）

2）

转载地址：http://blmbi.baihongyu.com/

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