Ubuntu上通过android toolchain交叉编译Valgrind操作步骤-蒲公英云

Ubuntu上通过android toolchain交叉编译Valgrind操作步骤

  关于Valgrind的介绍可以参考：[https://blog.csdn.net/fengbingchun/article/details/50196189][https_blog.csdn.net_fengbingchun_article_details_50196189].
  这里介绍下在Ubuntu 16.04上通过android toolchain如android-ndk-r14b交叉编译Valgrind源码的操作步骤：
  1. 从 https://valgrind.org/ 下载最新的版本3.17.0，解压缩，并将终端定位到主目录；
  2. 从官网https://developer.android.com/ndk/downloads/older\_releases\#ndk-14b-downloads下载android-ndk-r14b并解压缩；
  3. 编写脚本build\_android.sh，内容如下：此脚本既支持armv7也支持aarch64，在valgrind主目录下执行此脚本
#! /bin/bash
if [ $# != 1 ]; then
    echo "usage: $0 system_architect"
    echo "e.g: build armv7: $0 0; build aarch64: $0 1"
    exit 1
fi
if [ $1 != 0 -a $1 != 1 ]; then
    echo "input param can only be 0 or 1: \"$0 0\" or \"$0 1\""
    exit 1
fi
toolchain_path=${HOME}/Disk/Soft/android-ndk-r14b
echo "toolchain path: ${toolchain_path}"
if [ $1 == 0 ]; then
    echo "build android armv7"
    export AR=${toolchain_path}/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ar
    export LD=${toolchain_path}/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld
    export CC=${toolchain_path}/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
    export CXX=${toolchain_path}/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-g++
    export RANLIB=${toolchain_path}/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ranlib
    export STRIP=${toolchain_path}/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-strip
    bash autogen.sh
    CPPFLAGS="--sysroot=${toolchain_path}/platforms/android-21/arch-arm" \
    CFLAGS="--sysroot=${toolchain_path}/platforms/android-21/arch-arm" \
    ./configure \
        --prefix=/ \
        --host=armv7-unknown-linux \
        --target=armv7-unknown-linux \
        --with-tmpdir=/sdcard
    make -j4
    make install DESTDIR=`pwd`/install_armv7
fi
if [ $1 == 1 ]; then
    echo "build android aarch64"
    export AR=${toolchain_path}/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-ar
    export LD=${toolchain_path}/ttoolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-ld
    export CC=${toolchain_path}/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-gcc
    export CXX=${toolchain_path}/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-g++
    export RANLIB=${toolchain_path}/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-ranlib
    export STRIP=${toolchain_path}/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-strip
    bash autogen.sh
    CPPFLAGS="--sysroot=${toolchain_path}/platforms/android-21/arch-arm64" \
    CFLAGS="--sysroot=${toolchain_path}/platforms/android-21/arch-arm64" \
    ./configure \
        --prefix=/ \
        --host=aarch64-unknown-linux \
        --target=aarch64-unknown-linux \
        --with-tmpdir=/sdcard
    make -j4
    make install DESTDIR=`pwd`/install_aarch64
fi
  4. 解决编译时的error:oredump-elf.c:149:4: error: conflicting types for 'Elf32\_Nhdr',修改源码coregrind/m\_coredump/coredump-elf.c，将文件中结构体名Elf32\_Nhdr调整为Elf32\_Nhdr\_,此结构体好像并没有用到
  5. 执行完脚本后，会在valgrind主目录下生成install\_armv7和install\_aarch64目录，结构如下：bin目录下存放着valgrind可执行文件，libexec/valgrind目录下存放着所需的动态库。注意：(1).valgrind的旧版本动态库的存放位置是lib/valgrind目录；(2).在编译完armv7或aarch64后，如继续编译另一个架构，需先执行make clean，再执行./build\_android.sh 0或./build\_android.sh 1

   6. 将install\_armv7或install\_aarch64拷贝到手机上，查看valgrind版本，结果如下：可见valgrind执行正确。注意：(1).新版本valgrind的VALGRIND\_LIB为./install\_aarch64/libexec/valgrind，在旧版本中为./install\_aarch64/lib/valgrind；(2).当测试的可执行文件依赖其它动态库时，需要用LD\_LIBRARY\_PATH指定依赖动态库所在的目录；(3).如在执行过程中，遇到类似以下错误时"valgrind: Can't create client cmdline file in /data/local/tmp/valgrind\_proc\_xxxx\_cmdline\_yyyyyyyy",在原有命令基础上，添加TMPDIR=. 即可，如TMPDIR=. VALGRIND\_LIB=./install\_aarch64/libexec/valgrind LD\_LIBRARY\_PATH=target/android-aarch64/ ./install\_aarch64/bin/valgrind --leak-check=full --log-file=log.txt ./build/CppBaseTest