【P1010】 How to compile kernel module

[luyufan498]

make -C /home/yflu/linux-3.10.48 M=/home/yflu/hello modules ARCH=powerpc CROSS_COMPILE=powerpc-fsl-linux-gnuspe-

make[1]: Entering directory `/home/yflu/linux-3.10.48'

  Building modules, stage 2.

  MODPOST 1 modules

  LD [M]  /home/yflu/hello/mo.ko

powerpc-fsl-linux-gnuspe-ld: unrecognized option '-Wl,-O1'

powerpc-fsl-linux-gnuspe-ld: use the --help option for usage information

make[2]: *** [/home/yflu/hello/mo.ko] Error 1

make[1]: *** [modules] Error 2

make[1]: Leaving directory `/home/yflu/linux-3.10.48'

make: *** [all] Error 2

[bpe · Accepted solution]

Your linker for some reason receives options that should rather be interpreted by GCC. This may happen

due to wrong makefiles or environment variables. Suggestions:

1. Check the Makefile or Kbuild in your module source directory. One of them must be present. See Section 3 of this:

https://www.kernel.org/doc/Documentation/kbuild/modules.txt

2. Use the kernel and the toolchain from QorIQ SDK.

3. Make sure you successfully built the kernel for the selected target before attempting to build an external module.

4. Refer to the following links for general information:

https://www.kernel.org/doc/Documentation/kbuild/modules.txt

Compiling Kernel Modules

Have a great day,
Platon

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