[Buildroot] Buildroot Udev Compiling

[Buildroot] Buildroot Udev Compiling

[Jonas Keidel]

Hey guys,

it's me again. I have problems with udev compuiling in builroot...It 
stops with the following error message. I use the current git version of 
buildroot.

Here ist my config file:
http://pastebin.com/UU3HedKC

This is the error message:

>>> udev 182 Building
PATH="/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/host/bin:/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/host/usr/bin:/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/host/usr/sbin/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" 
PERLLIB="/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/host/usr/lib/perl" 
  /usr/bin/make -j8  -C 
/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/build/udev-182/
make[1]: Entering directory 
`/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/build/udev-182'
/usr/bin/make --no-print-directory all-recursive
Making all in .
   CCLD   udevadm
   CCLD   udevd
/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/host/usr/x86_64-unknown-linux-uclibc/sysroot/usr/lib/libblkid.so: 
file not recognized: Is a directory
collect2: ld returned 1 exit status
/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/host/usr/x86_64-unknown-linux-uclibc/sysroot/usr/lib/libblkid.so: 
file not recognized: Is a directory
collect2: ld returned 1 exit status
make[3]: *** [udevd] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: *** [udevadm] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all] Error 2
make[1]: Leaving directory 
`/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/build/udev-182'
make: *** 
[/usr/src/rescue-src/initramfs/busybox/building/git/buildroot/output/build/udev-182/.stamp_built] 
Error 2

Thx a lot!

[Buildroot] Buildroot Udev Compiling

[Arnout Vandecappelle]

On 06/29/12 07:52, Jonas Keidel wrote:
> it's me again. I have problems with udev compuiling in builroot...It stops with the following error message. I use the
> current git version of buildroot.
>
> Here ist my config file:
> http://pastebin.com/UU3HedKC

  I can't find the root cause of the problem (in fact, in my case it already
fails when compiling attr), but my guess is that BR2_PREFER_STATIC_LIB is
causing trouble.  Do you really need it?

  Regards,
  Arnout
-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium                BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F

[Buildroot] Buildroot Udev Compiling

[Jonas Keidel]

Hi Arnout,

>  I can't find the root cause of the problem (in fact, in my case it
already fails when compiling attr), but my guess is that
BR2_PREFER_STATIC_LIB is causing trouble.  Do you really need it?

Yes I really need it, because i build an special initramfs booting script
and for that I need udev static build.
But maybe it is possible to use it in another way. How can I do it? How can
I implement udev in my busybox environment?

Thx for answer.

[Buildroot] Buildroot Udev Compiling

[Baruch Siach]

Hi Jonas,

On Sat, Jun 30, 2012 at 03:12:27PM +0200, Jonas Keidel wrote:
> >  I can't find the root cause of the problem (in fact, in my case it
> already fails when compiling attr), but my guess is that
> BR2_PREFER_STATIC_LIB is causing trouble.  Do you really need it?
> 
> Yes I really need it, because i build an special initramfs booting script
> and for that I need udev static build.
> But maybe it is possible to use it in another way. How can I do it? How can
> I implement udev in my busybox environment?

Busybox includes mdev which is a simplified udev. Note, however, that mdev 
relies on the old hotplug mechanism to get device information from the kernel 
at run-time. This hostplug mechanism is inherently racy. For the initramfs use 
case this should be enough, though.

You may also consider using devtmpfs.

baruch

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
   - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -

[Buildroot] Buildroot Udev Compiling

[Jonas Keidel]

Hey Baruch,

> Busybox includes mdev which is a simplified udev. Note, however, that 
> mdev
> relies on the old hotplug mechanism to get device information from
> the kernel
> at run-time. This hostplug mechanism is inherently racy. For the
> initramfs use
> case this should be enough, though.

I know that it is implemented and I already tested that in my script. 
But I also want to try the udev variant because it is more flexible.
I've tested buildig today again and i got the same error as on the days 
before. Nothing changed. What can I do?