Re: [BUILD_FAILURE] 2.6.25-rc2-mm1 - Build Failure at acpi_os

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On 2/21/08, Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
> On Thu, Feb 21, 2008 at 10:54:40AM -0800, Nish Aravamudan wrote:
>  > On 2/20/08, Len Brown <lenb@xxxxxxxxxx> wrote:
>  > > On Saturday 16 February 2008 14:47, Kamalesh Babulal wrote:
>  > >  > Hi Andrew,
>  > >  >
>  > >  > The 2.6.25-rc2-mm1 kernel with randconfig build option, fails
>  > >  > to build on x86_64 machine
>  > >  >
>  > >  >   CC      drivers/acpi/osl.o
>  > >  > drivers/acpi/osl.c:60:38: error: empty filename in #include
>  > >  > drivers/acpi/osl.c: In function 'acpi_os_table_override':
>  > >  > drivers/acpi/osl.c:399: error: 'AmlCode' undeclared (first use in this function)
>  > >  > drivers/acpi/osl.c:399: error: (Each undeclared identifier is reported only once
>  > >  > drivers/acpi/osl.c:399: error: for each function it appears in.)
>  > >  > make[2]: *** [drivers/acpi/osl.o] Error 1
>  > >  > make[1]: *** [drivers/acpi] Error 2
>  > >  > make: *** [drivers] Error 2
>  > >  >
>  > >  > #
>  > >  > # Automatically generated make config: don't edit
>  > >  > # Linux kernel version: 2.6.25-rc2-mm1
>  > >  > # Sun Feb 17 08:07:17 2008
>  > >  > #
>  > >
>  > >
>  > > > CONFIG_ACPI_CUSTOM_DSDT=y
>  > >  > CONFIG_ACPI_CUSTOM_DSDT_FILE=""
>  > >
>  > >
>  > > garbage in, garbage out.
>  >
>  > garbage explicitly *allowed* by Kconfig in this case, though.
>  >
>  > >  If you don't give this build option a file name where AmlCode lives,
>  > >  then the build will be unable to find AmlCode[].
>  > >
>  > >  http://www.lesswatts.org/projects/acpi/overridingDSDT.php
>  >
>  > So we have a .config option whose sole purpose is to use another
>  > .config option? That seems ... less than ideal. Is there not some
>  > Kconfig voodoo we can do to only require the one option? Maybe
>  > something like how CONFIG_INITRAMFS_SOURCE is done? Adding Sam to the
>  > Cc, in case he has any ideas.
>
>
> Make sure STANDALONE is y for your randconfig builds.
>  See README for examples.

Hrm, if this is needed for randconfig to work, perhaps randconfig
itself should somehow be specifying it?

>  STANALONE is there exactly to prevent the above but we cannot
>  control randconfig.

While setting STANDALONE does fix the above, it doesn't answer the
more basic question I had -- do we really need both .config options in
this case? If it's simply a case of "That's how it is, won't be fixed,
there are higher priorities", that's good enough by me. Just seems a
shame that we have an option to enable another option, which is
required for the first option to be sensible -- seems like we should
only need the second option...

Thanks,
Nish
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