跨采用了Android工具链编译 [英] cross compiling using Android toolchains

问题描述

我需要编译为Android MPICH，我使用NDK臂Linux的andoirdeabi-4.8工具链交叉编译MPI，我做了以下

 出口PATH =$ NDK_ROOT /工具链/ ARM-Linux的androideabi-4.8 / prebuilt / Linux的x86_64的/ bin中/：$ PATH
出口SYS_ROOT =$ NDK_ROOT /平台/ Android的-8 /弓臂/
出口CC =臂Linux的androideabi-GCC --sysroot = $ SYS_ROOT
出口LD =臂Linux的androideabi-LD
出口AR =臂Linux的androideabi-AR
的./configure主机=臂Linux的androideabi  -  preFIX = / Crosscompile2 / JNI / MPICH / LIBS = -  LC -lgcc--disable共享--disable-FORTRAN --disable-CXX
 

但我得到了以下错误：

 在-lpthread检查pthread_key_create ...没有
检查点检查库...配置：错误：pthread的需要检查点，但没有被发现
配置：错误：SRC / PM /九头蛇配置失败
 

当我加-lpthread

  LIBS = -  LC -lgcc -lpthread
 

它没有编译

 检查C编译器是否工作......没有
配置：错误：C编译器不能创建可执行文件
 

解决方案

Android是特殊的，因为它实现pthreads的，但没有一个单独的libpthreads.a。最简单的解决方法是空库添加到您的工具链 usr / lib目录

  $阿Q $ SYS_ROOT / usr / lib目录/的libpthreads.a
 

运行前./配置

I need to compile mpich for android , I used NDK arm-linux-andoirdeabi-4.8 toolchain to cross compile mpi , I did the following

export PATH="$NDK_ROOT/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/:$PATH"
export SYS_ROOT="$NDK_ROOT/platforms/android-8/arch-arm/"
export CC="arm-linux-androideabi-gcc --sysroot=$SYS_ROOT"
export LD="arm-linux-androideabi-ld"
export AR="arm-linux-androideabi-ar"


./configure --host=arm-linux-androideabi  --prefix=/Crosscompile2/jni/mpich/ LIBS="-lc -lgcc " --disable-shared --disable-fortran --disable-cxx 

but I got the following error:

checking for pthread_key_create in -lpthread... no
checking checkpointing library... configure: error: pthreads is required for checkpointing, but was not found
configure: error: src/pm/hydra configure failed

when I added -lpthread

LIBS="-lc -lgcc -lpthread"

it didn't compile

checking whether the C compiler works... no
configure: error: C compiler cannot create executables

解决方案

Android is special in that it implements pthreads, but does not have a separate libpthread.a. The easy workaround is to add an empty library to your toolchain usr/lib

$AR q $SYS_ROOT/usr/lib/libpthread.a

before running ./configure

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