使用Linaro工具链交叉编译Android (Mako)内核

Question

我使用以下提示成功编译并引导了我自己的内核：

http://astro.temple.edu/~tue68607/project/articles/customized-android-aospsystem-nexus4.html

所以现在我想使用Linaro工具链。

我用谷歌的方法测试了设置路径，但不能工作。我得到了这个错误

najmi@raden-aufa-qistina:~/android/kernel/msm$ export ARCH=arm
najmi@raden-aufa-qistina:~/android/kernel/msm$ export SUBARCH=arm
najmi@raden-aufa-qistina:~/android/kernel/msm$ export CROSS_COMPILE=arm-linux-androideabi-
najmi@raden-aufa-qistina:~/android/kernel/msm$ make mako_defconfig
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
warning: (ARCH_MSM_KRAITMP && ARCH_MSM_CORTEX_A5) selects HAVE_HW_BRKPT_RESERVED_RW_ACCESS which has unmet direct dependencies (HAVE_HW_BREAKPOINT)
warning: (ARCH_MSM_KRAITMP && ARCH_MSM_CORTEX_A5) selects HAVE_HW_BRKPT_RESERVED_RW_ACCESS which has unmet direct dependencies (HAVE_HW_BREAKPOINT)
#
# configuration written to .config
#
najmi@raden-aufa-qistina:~/android/kernel/msm$ make -j8
scripts/kconfig/conf --silentoldconfig Kconfig
warning: (ARCH_MSM_KRAITMP && ARCH_MSM_CORTEX_A5) selects HAVE_HW_BRKPT_RESERVED_RW_ACCESS which has unmet direct dependencies (HAVE_HW_BREAKPOINT)
warning: (ARCH_MSM_KRAITMP && ARCH_MSM_CORTEX_A5) selects HAVE_HW_BRKPT_RESERVED_RW_ACCESS which has unmet direct dependencies (HAVE_HW_BREAKPOINT)
  CHK     include/linux/version.h
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/bin2c
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
arm-linux-androideabi-gcc: No such file or directory
Is your PATH set correctly?
make[2]: *** [scripts/mod/empty.o] Error 2
make[2]: *** Waiting for unfinished jobs....
  HOSTCC  scripts/selinux/genheaders/genheaders
  HOSTCC  scripts/selinux/mdp/mdp
make[1]: *** [scripts/mod] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [scripts] Error 2
make: *** Waiting for unfinished jobs....

我已经正确设置了指向此处的路径：

/home/najmi/android/toolchain/linaro-git/android-toolchain-eabi/arm-linux-androideabi/bin

Answer 1

显然，正如错误所说的那样

arm-linux-androideabi-gcc: No such file or directory

这意味着您正在使用的NDK的当前版本不包含在gcc。所以，试试老版本的android NDK吧(我推荐15c版，里面包含了gcc)。https://developer.android.com/ndk/downloads/older_releases.html

然后，按相同的顺序尝试以下操作：

$ export ARCH=arm
$ export CROSS_COMPILE=<your path >/android-ndk-r15c/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-
$ make mako_defconfig
$ make -j4

在运行compile anything之前，请确保运行以下代码以清除之前的任何编译。如果你没有编译任何东西。那么就不需要运行这个代码了

$ make clean && make mrproper

我之前已经测试过了，它是有效的。