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

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On 2/22/08, Randy Dunlap <randy.dunlap@xxxxxxxxxx> wrote:
> On Fri, 22 Feb 2008 19:08:15 +0100 Sam Ravnborg wrote:
>
>  > On Thu, Feb 21, 2008 at 05:38:52PM -0800, Nish Aravamudan wrote:
>  > > 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...
>  >
>  > I really do not see what problem you are trying to address.
>  >
>  > STANDALONE is there as an easy way to turn of the options that requires
>  > sensible input to make a kernel compile.
>  >
>  > And that makes _perfect_ sense when you do randconfig builds.
>
>
>  > CONFIG_ACPI_CUSTOM_DSDT=y
>  > CONFIG_ACPI_CUSTOM_DSDT_FILE=""
>
>
> Is there a way to generate (in Kconfig language) the boolean
>  CONFIG_ACPI_CUSTOM_DSDT based on whether CONFIG_ACPI_CUSTOM_DSDT_FILE
>  == "" or != "" ?  I tried to muck around with that last night but
>  couldn't get it to work.  I.e., just present the ACPI_CUSTOM_DSDT_FILE
>  config symbol to the user and then generate the ACPI_CUSTOM_DSDT bool
>  based on the string value.

Thanks for re-expressing my question, Randy, this is exactly what I'm wondering.

Thanks,
Nish
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