交叉编译valgrind

客官°小女子只卖身不卖艺 2022-04-05 07:53 370阅读 0赞

**valgrind编译注意事项：**

1. --prefix的路径必须和手机上实际运行的目录是一致的，不然运行valgrind会报错：

failed to start tool 'memcheck' for platform 'arm-linux': No such file or directory"

2. 用ndk-r11c，valgrind版本3.12，编译出来在android6.0上跑，结果总是显示有泄露，运行不正确。

**todo：**

1. 需要查看具体内存泄露的代码行号，需要在编译时带上-g选项，同时执行的程序必须是带调试符号的版本。

2. /data/local/Inst/bin/valgrind -v --error-limit=no --trace-children=yes --log-file=/sdcard/valgrind.log.%p --tool=memcheck --leak-check=full --show-reachable=yes /data/local/tmp/test\_demo

**交叉编译步骤：**

**1. 编写valgrind交叉编译脚本build.sh，并执行，然后生成makefile：**

export NDKROOT=/Users/xxx/Library/Android/android-ndk-r11c
    export ABI_DIR=arm-linux-androideabi-4.9
    export ARCH=arm-linux-androideabi
    export HWKIND=generic
    #export VALGRIND_LIB=/data/local/valgrind/lib/valgrind/
    # Set up toolchain paths.
    #
    # For ARM
    
    export AR=$NDKROOT/toolchains/$ABI_DIR/prebuilt/darwin-x86_64/bin/$ARCH-ar
    export LD=$NDKROOT/toolchains/$ABI_DIR/prebuilt/darwin-x86_64/bin/$ARCH-ld
    export CC=$NDKROOT/toolchains/$ABI_DIR/prebuilt/darwin-x86_64/bin/$ARCH-gcc
    export CXX=$NDKROOT/toolchains/$ABI_DIR/prebuilt/darwin-x86_64/bin/$ARCH-g++
    
    export RANLIB=$NDKROOT/toolchains/$ABI_DIR/prebuilt/darwin-x86_64/bin/$ARCH-ranlib
    export STRIP=$NDKROOT/toolchains/$ABI_DIR/prebuilt/darwin-x86_64/bin/$ARCH-strip
    
    
    #export AR=$NDKROOT/toolchains/llvm/prebuilt/darwin-x86_64/bin/armeabi-v7a/
    #export LD=$NDKROOT/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-link
    #export CC=$NDKROOT/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang
    #export CXX=$NDKROOT/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang++
    
    #export RANLIB=$NDKROOT/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-ranlib
    #export STRIP=$NDKROOT/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-strip
    #
    
    # for ARM
    CPPFLAGS="--sysroot=$NDKROOT/platforms/android-21/arch-arm -DANDROID_HARDWARE_$HWKIND" \
    CFLAGS="--sysroot=$NDKROOT/platforms/android-21/arch-arm" \
       ./configure --prefix=/data/local/Inst --host=armv7-unknown-linux --target=armv7-unknown-linux --with-tmpdir=/sdcard
    # note: on android emulator, android-14 platform was also tested and works.
    # It is not clear what this platform nr really is.
    #CPPFLAGS="--sysroot=$NDKROOT/platforms/android-23/arch-arm64" \
       #CFLAGS="--sysroot=$NDKROOT/platforms/android-23/arch-arm64" \
       #./configure --prefix=/data/local/Inst \
       #--host=aarch64-unknown-linux --target=aarch64-unknown-linux \
       #--with-tmpdir=/sdcard

**2. make**