[gentoo-user] linux make modules fails

[gentoo-user] linux make modules fails

[Justin Findlay]

When I try to build the 'modules' target with linux it doesn't create
the .ko files.  It seems to get stuck at 'stage 2', whatever that
means, and I am at a loss finding out what exactly stage 2 is, from
looking at scripts/Makefile.modpost, and why it doesn't build.

This happens with either a vanilla-sources or gentoo-sources kernel
and doesn't happen when I try to build the gentoo kernel from within
another system, like a knoppix liveCD.

# make V=1 modules
rm -f .kernelrelease
echo 2.6.17-rc4 > .kernelrelease
set -e; echo '  CHK     include/linux/version.h'; mkdir -p
include/linux/;      if [ `echo -n "2.6.17-rc4" | wc -c ` -gt 64 ];
then echo '"2.6.17-rc4" exceeds 64 characters' >&2; exit 1; fi; (echo
\#define UTS_RELEASE \"2.6.17-rc4\"; echo \#define LINUX_VERSION_CODE
`expr 2 \\* 65536 + 6 \\* 256 + 17`; echo '#define
KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; ) <
/usr/src/linux-2.6.17-rc4/Makefile > include/linux/version.h.tmp; if [
-r include/linux/version.h ] && cmp -s include/linux/version.h
include/linux/version.h.tmp; then rm -f include/linux/version.h.tmp;
else echo '  UPD     include/linux/version.h'; mv -f
include/linux/version.h.tmp include/linux/version.h; fi
  CHK     include/linux/version.h
make -f scripts/Makefile.build obj=scripts/basic
mkdir -p .tmp_versions
rm -f .tmp_versions/*
make -f scripts/Makefile.build obj=.
mkdir -p arch/x86_64/kernel/
make -f scripts/Makefile.build obj=scripts
...

  Building modules, stage 2.
make -rR -f /usr/src/linux-2.6.17-rc4/scripts/Makefile.modpost
  scripts/mod/modpost -m -a -o
/usr/src/linux-2.6.17-rc4/Module.symvers   vmlinux


Justin
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Re: [gentoo-user] linux make modules fails

[Ben Reubenstein]

Hi Justin ~

Read the docs on Gentoo.org.  Understand what Stage 2 is.  If not ,
you might be better off with Unbuntu.

I promise if you follow the docs you will get a wonderful, running
Gentoo system.

URL: http://www.gentoo.org/doc/en/index.xml?catid=install#doc_chap2

~ Ben

On 5/18/06, Justin Findlay <jfindlay@gmail.com> wrote:
> When I try to build the 'modules' target with linux it doesn't create
> the .ko files.  It seems to get stuck at 'stage 2', whatever that
> means, and I am at a loss finding out what exactly stage 2 is, from
> looking at scripts/Makefile.modpost, and why it doesn't build.
>
> This happens with either a vanilla-sources or gentoo-sources kernel
> and doesn't happen when I try to build the gentoo kernel from within
> another system, like a knoppix liveCD.
>
> # make V=1 modules
> rm -f .kernelrelease
> echo 2.6.17-rc4 > .kernelrelease
> set -e; echo '  CHK     include/linux/version.h'; mkdir -p
> include/linux/;      if [ `echo -n "2.6.17-rc4" | wc -c ` -gt 64 ];
> then echo '"2.6.17-rc4" exceeds 64 characters' >&2; exit 1; fi; (echo
> \#define UTS_RELEASE \"2.6.17-rc4\"; echo \#define LINUX_VERSION_CODE
> `expr 2 \\* 65536 + 6 \\* 256 + 17`; echo '#define
> KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; ) <
> /usr/src/linux-2.6.17-rc4/Makefile > include/linux/version.h.tmp; if [
> -r include/linux/version.h ] && cmp -s include/linux/version.h
> include/linux/version.h.tmp; then rm -f include/linux/version.h.tmp;
> else echo '  UPD     include/linux/version.h'; mv -f
> include/linux/version.h.tmp include/linux/version.h; fi
>   CHK     include/linux/version.h
> make -f scripts/Makefile.build obj=scripts/basic
> mkdir -p .tmp_versions
> rm -f .tmp_versions/*
> make -f scripts/Makefile.build obj=.
> mkdir -p arch/x86_64/kernel/
> make -f scripts/Makefile.build obj=scripts
> ...
>
>   Building modules, stage 2.
> make -rR -f /usr/src/linux-2.6.17-rc4/scripts/Makefile.modpost
>   scripts/mod/modpost -m -a -o
> /usr/src/linux-2.6.17-rc4/Module.symvers   vmlinux
>
>
> Justin
> --
> gentoo-user@gentoo.org mailing list
>
>


-- 
Ben Reubenstein
303-947-0446
http://www.benr75.com

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Re: [gentoo-user] linux make modules fails

[Richard Fish]

On 5/18/06, Ben Reubenstein <benr@x-cr.com> wrote:
> Hi Justin ~
>
> Read the docs on Gentoo.org.  Understand what Stage 2 is.

How is that supposed to help?  His problem is with building modules,
not installation...

-Richard

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Re: [gentoo-user] linux make modules fails

[Justin Findlay]

On 5/18/06, Ben Reubenstein <benr@x-cr.com> wrote:
>
> Read the docs on Gentoo.org.  Understand what Stage 2 is.  If not ,
> you might be better off with Unbuntu.

I'm sorry, Ben, that I haven't been more explicit.  I'm not talking
about Gentoo's stage 2, I'm talking about stage 2 of the kernel's
build proceedure of modules which gathers object files into kernel
modules, so:

# cd /usr/src/linux
# make modules
...
Building modules, stage 2.
[failure]
#

See the output of my previous email.  I've tried Ubuntu and didn't like it. (-:


Justin
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gentoo-user@gentoo.org mailing list

Re: [gentoo-user] linux make modules fails

[Richard Fish]

On 5/18/06, Justin Findlay <jfindlay@gmail.com> wrote:
> When I try to build the 'modules' target with linux it doesn't create
> the .ko files.  It seems to get stuck at 'stage 2', whatever that
> means, and I am at a loss finding out what exactly stage 2 is, from
> looking at scripts/Makefile.modpost, and why it doesn't build.

It seems to me that the stage2 is what takes the .o files for all the
modules and converts them to .ko files.  Here is an example from my
kernel build:

------
carcharias linux # make CONFIG_CC_OPTIMIZE_FOR_SIZE=1 V=1 modules
rm -f .kernelrelease
echo 2.6.16-suspend2-r5 > .kernelrelease
if test ! /usr/src/linux-2.6.16-suspend2-r5 -ef
/usr/src/linux-2.6.16-suspend2-r5; then \
        /bin/sh /usr/src/linux-2.6.16-suspend2-r5/scripts/mkmakefile
           \
            /usr/src/linux-2.6.16-suspend2-r5
/usr/src/linux-2.6.16-suspend2-r5 2 6         \
            > /usr/src/linux-2.6.16-suspend2-r5/Makefile;
                   \
            echo '  GEN
/usr/src/linux-2.6.16-suspend2-r5/Makefile';                   \
        fi
set -e; echo '  CHK     include/linux/version.h'; mkdir -p
include/linux/;      if [ `echo -n "2.6.16-suspend2-r5" | wc -c ` -gt
64 ]; then echo '"2.6.16-suspend2-r5" exceeds 64 characters' >&2; exit
1; fi; (echo \#define UTS_RELEASE \"2.6.16-suspend2-r5\"; echo
\#define LINUX_VERSION_CODE `expr 2 \\* 65536 + 6 \\* 256 + 16`; echo
'#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; ) <
/usr/src/linux-2.6.16-suspend2-r5/Makefile >
include/linux/version.h.tmp; if [ -r include/linux/version.h ] && cmp
-s include/linux/version.h include/linux/version.h.tmp; then rm -f
include/linux/version.h.tmp; else echo '  UPD
include/linux/version.h'; mv -f include/linux/version.h.tmp
include/linux/version.h; fi
  CHK     include/linux/version.h
make -f scripts/Makefile.build obj=scripts/basic
rm -rf .tmp_versions
mkdir -p .tmp_versions
make -f scripts/Makefile.build obj=.
mkdir -p arch/i386/kernel/
make -f scripts/Makefile.build obj=scripts
make -f scripts/Makefile.build obj=scripts/genksyms
make -f scripts/Makefile.build obj=scripts/mod
make -f scripts/Makefile.build obj=init
...
make -f scripts/Makefile.build obj=lib/zlib_deflate
make -f scripts/Makefile.build obj=lib/zlib_inflate
make -f scripts/Makefile.build obj=arch/i386/lib
  Building modules, stage 2.
make -rR -f /usr/src/linux-2.6.16-suspend2-r5/scripts/Makefile.modpost
  scripts/mod/modpost -m  -o
/usr/src/linux-2.6.16-suspend2-r5/Module.symvers vmlinux
arch/i386/kernel/cpuid.o arch/i386/kernel/microcode.o
arch/i386/kernel/msr.o arch/i386/oprofile/oprofile.o crypto/arc4.o
crypto/michael_mic.o crypto/sha256.o drivers/base/firmware_class.o
drivers/block/pktcdvd.o drivers/char/genrtc.o
...
------

There are a lot more "make -f scripts/" lines, and a lot more modules
on the modpost command, than what I included here.

What is interesting to me is that your build didn't iterate through
the other obj= lines that I have.

> This happens with either a vanilla-sources or gentoo-sources kernel
> and doesn't happen when I try to build the gentoo kernel from within
> another system, like a knoppix liveCD.

Hmm, I see you are building an x86_64 kernel...is this being
cross-compiled?  Are the other environments x86_64 architecture as
well?  I guess posting your emerge --info output would be useful
here...

-Richard

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Re: [gentoo-user] linux make modules fails

[Ben Reubenstein]

> How is that supposed to help?  His problem is with building modules,
> not installation...

Ah ~ Must have read too fast.  I think that it has something to do
with the 64bit compile... just a guess...

On 5/18/06, Richard Fish <bigfish@asmallpond.org> wrote:
> On 5/18/06, Ben Reubenstein <benr@x-cr.com> wrote:
> > Hi Justin ~
> >
> > Read the docs on Gentoo.org.  Understand what Stage 2 is.
>

>
> -Richard
>
> --
> gentoo-user@gentoo.org mailing list
>
>


-- 
Ben Reubenstein
303-947-0446
http://www.benr75.com

-- 
gentoo-user@gentoo.org mailing list

Re: [gentoo-user] linux make modules fails

[Justin Findlay]

On 5/18/06, Richard Fish <bigfish@asmallpond.org> wrote:
>
> There are a lot more "make -f scripts/" lines, and a lot more modules
> on the modpost command, than what I included here.

I don't get anything with modpost after this:

  Building modules, stage 2.
make -rR -f /usr/src/linux-2.6.17-rc4/scripts/Makefile.modpost
  scripts/mod/modpost -m -a -o
/usr/src/linux-2.6.17-rc4/Module.symvers   vmlinux

> What is interesting to me is that your build didn't iterate through
> the other obj= lines that I have.

It did, but I aggressively trimmed them. (-:

> Hmm, I see you are building an x86_64 kernel...is this being
> cross-compiled?  Are the other environments x86_64 architecture as
> well?  I guess posting your emerge --info output would be useful
> here...

No cross compiling.  This kernel is for the machine that's compiling
it.  I first noticed this when I tried to install
vanilla-sources-2.6.16.1, and I've also tried to compile a vanilla
2.6.14 kernel from kernel.org with the same dissapearing modules
trick, so I think this has something to do with a system utility
having been updated and not working as expected.  I've been trying to
find a clue to what it might be from the kernel's makefiles.


Justin
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gentoo-user@gentoo.org mailing list

Re: [gentoo-user] linux make modules fails

[Justin Findlay]

On 5/18/06, Richard Fish <bigfish@asmallpond.org> wrote:

> make -rR -f /usr/src/linux-2.6.16-suspend2-r5/scripts/Makefile.modpost
>   scripts/mod/modpost -m  -o
> /usr/src/linux-2.6.16-suspend2-r5/Module.symvers vmlinux
> arch/i386/kernel/cpuid.o arch/i386/kernel/microcode.o
> arch/i386/kernel/msr.o arch/i386/oprofile/oprofile.o crypto/arc4.o
> crypto/michael_mic.o crypto/sha256.o drivers/base/firmware_class.o
> drivers/block/pktcdvd.o drivers/char/genrtc.o
> ...

is this a single command?  Mine only prints out:

make -rR -f /usr/src/linux-2.6.17-rc4/scripts/Makefile.modpost
  scripts/mod/modpost -m -a -o
/usr/src/linux-2.6.17-rc4/Module.symvers   vmlinux

and that's it.  I've been looking at scripts/mod/modpost.c and I guess
it wants the object files on the command line, and they aren't being
supplied.


Justin
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gentoo-user@gentoo.org mailing list

Re: [gentoo-user] linux make modules fails

[Richard Fish]

On 5/18/06, Justin Findlay <jfindlay@gmail.com> wrote:
> is this a single command?  Mine only prints out:
>
> make -rR -f /usr/src/linux-2.6.17-rc4/scripts/Makefile.modpost
>   scripts/mod/modpost -m -a -o
> /usr/src/linux-2.6.17-rc4/Module.symvers   vmlinux

Yep, that is a single command that includes all of the module .o files
to process.

> and that's it.  I've been looking at scripts/mod/modpost.c and I guess
> it wants the object files on the command line, and they aren't being
> supplied.

I think the failing is in scripts/Makefile.modpost.  However this
makefile is quite convoluted, and beyond my understanding with only a
5-minute investement.  I know that somewhere in there is supposed to
expand a full list of modules to call modpost with.  And for some
reason, you are getting an empty list of modules here...

What version of gcc are you using?  I know 3.4.x works, not so sure
about later versions...

Again, emerge --info might provide some more insight...

-Richard

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