使用cmake构建工具链以交叉编译为android

Question

gcc (GCC) 4.8.1 
android-ndk-r9 

你好,

我的主机是Fedora 19,我想创建一个工具链,用于编译在android上运行的程序,稍后我想为iOS扩展它.

我收到以下错误:

Check for working C compiler: /opt/ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc -- broken

我不知道为什么我会收到此错误,因为已经安装了所有内容.我也安装了binutils-arm-linux-gnu.然而,这是我第一次做这类事情,所以我有很多东西混淆了.

我正在尝试使用cmake创建一个工具链文件到croos-compile以在Android设备上运行库.

我已经在以下位置安装了android-ndk-r9和编译器的路径:

/opt/ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin

arm-linux-androideabi-addr2line
arm-linux-androideabi-ar
arm-linux-androideabi-as
arm-linux-androideabi-c++
arm-linux-androideabi-c++filt
arm-linux-androideabi-cpp
arm-linux-androideabi-elfedit
arm-linux-androideabi-g++
arm-linux-androideabi-gcc
arm-linux-androideabi-gcc-4.8
arm-linux-androideabi-gcc-ar
arm-linux-androideabi-gcc-nm
arm-linux-androideabi-gcc-ranlib
arm-linux-androideabi-gcov
arm-linux-androideabi-gdb
arm-linux-androideabi-gprof
arm-linux-androideabi-ld
arm-linux-androideabi-ld.bfd
arm-linux-androideabi-ld.gold
arm-linux-androideabi-ld.mcld
arm-linux-androideabi-nm
arm-linux-androideabi-objcopy
arm-linux-androideabi-objdump
arm-linux-androideabi-ranlib
arm-linux-androideabi-readelf
arm-linux-androideabi-run
arm-linux-androideabi-size
arm-linux-androideabi-strings
arm-linux-androideabi-strip

我的交叉编译文件是:

include(CMakeForceCompiler)

set(toolchain_path /opt/ndk/toolchains)

# Target system
set(CMAKE_SYSTEM_NAME Linux)

set(CMAKE_SYSTEM_PROCESSOR arm)

set(CMAKE_SYSTEM_VERSION 1)

# Compiler to build for the target
set(CMAKE_C_COMPILER /opt/ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc)

set(CMAKE_FIND_ROOT_PATH /opt/ndk/toolchains)

我从我的build/debug目录运行它,我的工具链在根目录中.

[ant@localhost debug]$ cmake -DCMAKE_TOOLCHAIN_FILE=arm-eabi-gcc.cmake ../..

产量

-- The C compiler identification is GNU 4.8.0
-- Check for working C compiler: /opt/ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
-- Check for working C compiler: /opt/ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc -- broken
CMake Error at /usr/share/cmake/Modules/CMakeTestCCompiler.cmake:61 (message):
  The C compiler
  "/opt/ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc"
  is not able to compile a simple test program.

  It fails with the following output:

   Change Dir: /home/steve/mobile_progs/linux_pjsip/build/debug/CMakeFiles/CMakeTmp

  Run Build Command:/usr/bin/gmake "cmTryCompileExec379796592/fast"

  /usr/bin/gmake -f CMakeFiles/cmTryCompileExec379796592.dir/build.make
  CMakeFiles/cmTryCompileExec379796592.dir/build

  gmake[1]: Entering directory
  `/home/steve/mobile_progs/linux_pjsip/build/debug/CMakeFiles/CMakeTmp'

  /usr/bin/cmake -E cmake_progress_report
  /home/steve/mobile_progs/linux_pjsip/build/debug/CMakeFiles/CMakeTmp/CMakeFiles
  1

  Building C object
  CMakeFiles/cmTryCompileExec379796592.dir/testCCompiler.c.o

  /opt/ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
  -o CMakeFiles/cmTryCompileExec379796592.dir/testCCompiler.c.o -c
  /home/steve/mobile_progs/linux_pjsip/build/debug/CMakeFiles/CMakeTmp/testCCompiler.c

  Linking C executable cmTryCompileExec379796592

  /usr/bin/cmake -E cmake_link_script
  CMakeFiles/cmTryCompileExec379796592.dir/link.txt --verbose=1

  /opt/ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
  CMakeFiles/cmTryCompileExec379796592.dir/testCCompiler.c.o -o
  cmTryCompileExec379796592 -rdynamic 

  /opt/android-ndk-r9/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld:
  error: cannot open crtbegin_dynamic.o: No such file or directory


  /opt/android-ndk-r9/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld:
  error: cannot open crtend_android.o: No such file or directory

  /opt/android-ndk-r9/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld:
  error: cannot find -lc

  /opt/android-ndk-r9/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld:
  error: cannot find -ldl

  collect2: error: ld returned 1 exit status

  gmake[1]: *** [cmTryCompileExec379796592] Error 1

  gmake[1]: Leaving directory
  `/home/steve/mobile_progs/linux_pjsip/build/debug/CMakeFiles/CMakeTmp'

  gmake: *** [cmTryCompileExec379796592/fast] Error 2

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:4 (project)

提前谢谢了,

Answer 1

我设法通过首先访问这个网站解决了这个问题:

http://developer.android.com/tools/sdk/ndk/index.html

有一个使用NDK附带的独立工具链的示例.

make-standalone-toolchain.sh --toolchain=arm-linux-androideabi-4.8

提取到我的/ opt目录中.

并使用此示例工具链cmake文件

# Target system
set(CMAKE_SYSTEM_NAME  Android)

set(CMAKE_SYSTEM_VERSION 1)

# Compiler to build for the target
set(CMAKE_C_COMPILER /opt/arm-linux-androideabi-4.8/bin/arm-linux-androideabi-gcc)
set(CMAKE_CXX_COMPILER /opt/arm-linux-androideabi-4.8/bin/arm-linux-androideabi-g++)

一切都在那之后起作用.但是,我无法解决上一个问题.也许我已经错误地将一些环境变量设置为错误的路径.

希望这有助于其他人.