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    kbuild: add CONFIG_HEADERS_INSTALL and loosen the dependency of samples · e949f4c2
    Masahiro Yamada 提交于
    Commit 5318321d ("samples: disable CONFIG_SAMPLES for UML") used
    a big hammer to fix the build errors under the samples/ directory.
    Only some samples actually include uapi headers from usr/include.
    
    Introduce CONFIG_HEADERS_INSTALL since 'depends on HEADERS_INSTALL' is
    clearer than 'depends on !UML'. If this option is enabled, uapi headers
    are installed before starting directory descending.
    
    I added 'depends on HEADERS_INSTALL' to per-sample CONFIG options.
    This allows UML to compile some samples.
    
    $ make ARCH=um allmodconfig samples/
      [ snip ]
      CC [M]  samples/configfs/configfs_sample.o
      CC [M]  samples/kfifo/bytestream-example.o
      CC [M]  samples/kfifo/dma-example.o
      CC [M]  samples/kfifo/inttype-example.o
      CC [M]  samples/kfifo/record-example.o
      CC [M]  samples/kobject/kobject-example.o
      CC [M]  samples/kobject/kset-example.o
      CC [M]  samples/trace_events/trace-events-sample.o
      CC [M]  samples/trace_printk/trace-printk.o
      AR      samples/vfio-mdev/built-in.a
      AR      samples/built-in.a
    Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
    e949f4c2
a500_defconfig 3.7 KB