valgrind for android 编译安装

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1、配置configure脚本，由于是在linux服务器上编译的，/目录下没有权限，因此将prefix指定为自己目录下安装，

这样的话，一定要记得valgrind在手机放置的目录，必须和prefix指定的目录一致。

配置脚本build.sh见下，路径记得要改成自己的。

export NDKROOT=~/android-ndk-r8b
export HWKIND=generic
#export VALGRIND_LIB=/data/local/valgrind/lib/valgrind/
# Set up toolchain paths.
#
# For ARM
export AR=$NDKROOT/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-ar
export LD=$NDKROOT/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-ld
export CC=$NDKROOT/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc
# for ARM
CPPFLAGS="--sysroot=$NDKROOT/platforms/android-14/arch-arm -DANDROID_HARDWARE_$HWKIND" \
CFLAGS="--sysroot=$NDKROOT/platforms/android-14/arch-arm" \
./configure --prefix=/home/myname/valgrind-3.9.0/valgrind-3.9.0/Inst \
--host=armv7-unknown-linux --target=armv7-linux-androideabi \
--with-tmpdir=/sdcard
# note: on android emulator, android-14 platform was also tested and works.
# It is not clear what this platform nr really is.

2、配置、编译、安装
./build.sh
make
make install
3、在prefix指定的目录下可以看到安装好的Inst，将其拷贝到手机侧，切记：一定要和prefix定义的路径一致，对应我现在定义的prefix，需要将Inst拷贝到
/home/myname/valgrind-3.9.0/valgrind-3.9.0/。
4、测试valgrind。进入手机侧/home/myname/valgrind-3.9.0/valgrind-3.9.0/Inst/bin，执行./valgrind ls，提示没有权限，ls -l可以看出根组其他用户都没有执行权限，chmod 777 valgrind；进入/home/myname/valgrind-3.9.0/valgrind-3.9.0/Inst/lib/valgrind，chmod 777 *，将所有文件权限修改。再执行./valgrind
ls，出现如下画面。一切OK，开始使用valgrind吧。

==7624== Memcheck, a memory error detector
==7624== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==7624== Using Valgrind-3.9.0 and LibVEX; rerun with -h for copyright info
==7624== Command: ls
==7624==
valgrind
==7624==
==7624== HEAP SUMMARY:
==7624==     in use at exit: 0 bytes in 0 blocks
==7624==   total heap usage: 5 allocs, 5 frees, 6,289 bytes allocated
==7624==
==7624== All heap blocks were freed -- no leaks are possible
==7624==
==7624== For counts of detected and suppressed errors, rerun with: -v
==7624== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

 注意事项：
1、手机侧放置valgrind的路径一定要和prefix定义一致，否则会出现如下错误
failed to start tool 'memcheck' for platform 'arm-linux': No such file or directory"。参见参考1。
2、如果使用cygwin模拟linux环境编译，configure中的kernel=`uname -r`检测内核时返回的是cgywin的版本号，
需要参考2进行修改。
参考：
1、http://blog.csdn.net/foruok/article/details/20701991
2、https://webcache.googleusercontent.com/search?q=cache:6hb5lNVRBDcJ:eatmyrandom.blogspot.com/2010/10/valgrind-and-failed-to-start-tool.html+&cd=1&hl=en&ct=clnk&gl=hk