kvm-userspace build break (linux/types.h)

kvm-userspace build break (linux/types.h)

[Hollis Blanchard]

A recent kernel merge breaks kvm-userspace build:
        make[1]: Entering directory `/root/hollisb/kvm-userspace.git/libkvm'
        gcc -m64 -D__x86_64__ -MMD -MF ./.libkvm.d -g -fomit-frame-pointer -Wall  -fno-stack-protector   -I /root/hollisb/kvm-userspace.git/kernel/include   -c -o libkvm.o libkvm.c
        In file included from /usr/include/bits/fcntl.h:24,
                         from /usr/include/fcntl.h:34,
                         from libkvm.c:30:
        /usr/include/sys/types.h:46: error: conflicting types for ‘loff_t’
        /usr/include/linux/types.h:30: error: previous declaration of ‘loff_t’ was here
        /usr/include/sys/types.h:62: error: conflicting types for ‘dev_t’
        /usr/include/linux/types.h:13: error: previous declaration of ‘dev_t’ was here
        [...]

I built like so:
        ./configure
        make -C kernel LINUX=/path/to/kvm.git sync
        make

The problem appears to be 00bfddaf7f68a6551319b536f052040c370756b0 and
cef3767852a9b1a7ff4a8dfe0969e2d32eb728df, both from Jaswinder Singh
Rajput <jaswinder@infradead.org>: 
        -#include <asm/types.h>
        +#include <linux/types.h>

With these changes, libkvm.c ends up
including /usr/include/linux/types.h, instead of the
intended ../kernel/include/linux/types.h.

Avi, suggestions? More "make sync" hacks?

-- 
Hollis Blanchard
IBM Linux Technology Center

Re: kvm-userspace build break (linux/types.h)

[Joerg Roedel]

On Thu, Feb 19, 2009 at 03:50:14PM -0600, Hollis Blanchard wrote:
> A recent kernel merge breaks kvm-userspace build:
>         make[1]: Entering directory `/root/hollisb/kvm-userspace.git/libkvm'
>         gcc -m64 -D__x86_64__ -MMD -MF ./.libkvm.d -g -fomit-frame-pointer -Wall  -fno-stack-protector   -I /root/hollisb/kvm-userspace.git/kernel/include   -c -o libkvm.o libkvm.c
>         In file included from /usr/include/bits/fcntl.h:24,
>                          from /usr/include/fcntl.h:34,
>                          from libkvm.c:30:
>         /usr/include/sys/types.h:46: error: conflicting types for ‘loff_t’
>         /usr/include/linux/types.h:30: error: previous declaration of ‘loff_t’ was here
>         /usr/include/sys/types.h:62: error: conflicting types for ‘dev_t’
>         /usr/include/linux/types.h:13: error: previous declaration of ‘dev_t’ was here
>         [...]
> 
> I built like so:
>         ./configure
>         make -C kernel LINUX=/path/to/kvm.git sync
>         make
> 
> The problem appears to be 00bfddaf7f68a6551319b536f052040c370756b0 and
> cef3767852a9b1a7ff4a8dfe0969e2d32eb728df, both from Jaswinder Singh
> Rajput <jaswinder@infradead.org>: 
>         -#include <asm/types.h>
>         +#include <linux/types.h>
> 
> With these changes, libkvm.c ends up
> including /usr/include/linux/types.h, instead of the
> intended ../kernel/include/linux/types.h.

I had the same problem some weeks ago. IIRC I fixed it with some include
reordering in libkvm.h.

Joerg

RE: kvm-userspace build break (linux/types.h)

[Zhang, Xiantao]

For x86 and ia64,  linux/types.h will be hacked to asm/types.h when syncing the source. 
You may consult kernel/x86/hack-module.awk to get the answer.  
Xiantao

Joerg Roedel wrote:
> On Thu, Feb 19, 2009 at 03:50:14PM -0600, Hollis Blanchard wrote:
>> A recent kernel merge breaks kvm-userspace build:
>>         make[1]: Entering directory
>>         `/root/hollisb/kvm-userspace.git/libkvm' gcc -m64
>>         -D__x86_64__ -MMD -MF ./.libkvm.d -g -fomit-frame-pointer
>>                          -Wall  -fno-stack-protector   -I
>>                         
>>         /root/hollisb/kvm-userspace.git/kernel/include   -c -o
>>         libkvm.o libkvm.c In file included from
>>         /usr/include/bits/fcntl.h:24, from /usr/include/fcntl.h:34,
>>         from libkvm.c:30: /usr/include/sys/types.h:46: error:
>> conflicting types for 'loff_t' /usr/include/linux/types.h:30: error:
>> previous declaration of 'loff_t' was here
>> /usr/include/sys/types.h:62: error: conflicting types for 'dev_t'
>> /usr/include/linux/types.h:13: error: previous declaration of
>> 'dev_t' was here         [...]     
>> 
>> I built like so:
>>         ./configure
>>         make -C kernel LINUX=/path/to/kvm.git sync
>>         make
>> 
>> The problem appears to be 00bfddaf7f68a6551319b536f052040c370756b0
>> and 
>> cef3767852a9b1a7ff4a8dfe0969e2d32eb728df, both from Jaswinder Singh
>> Rajput <jaswinder@infradead.org>:
>>         -#include <asm/types.h>
>>         +#include <linux/types.h>
>> 
>> With these changes, libkvm.c ends up
>> including /usr/include/linux/types.h, instead of the
>> intended ../kernel/include/linux/types.h.
> 
> I had the same problem some weeks ago. IIRC I fixed it with some
> include reordering in libkvm.h.
> 
> Joerg

Re: kvm-userspace build break (linux/types.h)

[Jaswinder Singh Rajput]

On Thu, 2009-02-19 at 15:50 -0600, Hollis Blanchard wrote:
> A recent kernel merge breaks kvm-userspace build:
>         make[1]: Entering directory `/root/hollisb/kvm-userspace.git/libkvm'
>         gcc -m64 -D__x86_64__ -MMD -MF ./.libkvm.d -g -fomit-frame-pointer -Wall  -fno-stack-protector   -I /root/hollisb/kvm-userspace.git/kernel/include   -c -o libkvm.o libkvm.c
>         In file included from /usr/include/bits/fcntl.h:24,
>                          from /usr/include/fcntl.h:34,
>                          from libkvm.c:30:
>         /usr/include/sys/types.h:46: error: conflicting types for ‘loff_t’
>         /usr/include/linux/types.h:30: error: previous declaration of ‘loff_t’ was here
>         /usr/include/sys/types.h:62: error: conflicting types for ‘dev_t’
>         /usr/include/linux/types.h:13: error: previous declaration of ‘dev_t’ was here
>         [...]
> 
> I built like so:
>         ./configure
>         make -C kernel LINUX=/path/to/kvm.git sync
>         make
> 
> The problem appears to be 00bfddaf7f68a6551319b536f052040c370756b0 and
> cef3767852a9b1a7ff4a8dfe0969e2d32eb728df, both from Jaswinder Singh
> Rajput <jaswinder@infradead.org>: 
>         -#include <asm/types.h>
>         +#include <linux/types.h>
> 
> With these changes, libkvm.c ends up
> including /usr/include/linux/types.h, instead of the
> intended ../kernel/include/linux/types.h.
> 
> Avi, suggestions? More "make sync" hacks?
> 

Avi, Is this already fixed, Or it is in your Magic Box (patch queue ;-)

Hollis: Do you mind testing -tip tree, may be we already fixed your
problem, Ingo is having big Magic Box :)
http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=summary

Thanks,
--
JSR

Re: kvm-userspace build break (linux/types.h)

[Hollis Blanchard]

On Fri, 2009-02-20 at 10:42 +0530, Jaswinder Singh Rajput wrote:
> On Thu, 2009-02-19 at 15:50 -0600, Hollis Blanchard wrote:
> > A recent kernel merge breaks kvm-userspace build:
> >         make[1]: Entering directory `/root/hollisb/kvm-userspace.git/libkvm'
> >         gcc -m64 -D__x86_64__ -MMD -MF ./.libkvm.d -g -fomit-frame-pointer -Wall  -fno-stack-protector   -I /root/hollisb/kvm-userspace.git/kernel/include   -c -o libkvm.o libkvm.c
> >         In file included from /usr/include/bits/fcntl.h:24,
> >                          from /usr/include/fcntl.h:34,
> >                          from libkvm.c:30:
> >         /usr/include/sys/types.h:46: error: conflicting types for ‘loff_t’
> >         /usr/include/linux/types.h:30: error: previous declaration of ‘loff_t’ was here
> >         /usr/include/sys/types.h:62: error: conflicting types for ‘dev_t’
> >         /usr/include/linux/types.h:13: error: previous declaration of ‘dev_t’ was here
> >         [...]
> > 
> > I built like so:
> >         ./configure
> >         make -C kernel LINUX=/path/to/kvm.git sync
> >         make
> > 
> > The problem appears to be 00bfddaf7f68a6551319b536f052040c370756b0 and
> > cef3767852a9b1a7ff4a8dfe0969e2d32eb728df, both from Jaswinder Singh
> > Rajput <jaswinder@infradead.org>: 
> >         -#include <asm/types.h>
> >         +#include <linux/types.h>
> > 
> > With these changes, libkvm.c ends up
> > including /usr/include/linux/types.h, instead of the
> > intended ../kernel/include/linux/types.h.
> > 
> > Avi, suggestions? More "make sync" hacks?
> > 
> 
> Avi, Is this already fixed, Or it is in your Magic Box (patch queue ;-)

Sorry, my fault... it is already fixed in the master branch of Avi's
tree.

> Hollis: Do you mind testing -tip tree, may be we already fixed your
> problem, Ingo is having big Magic Box :)
> http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=summary

Avi, would you pull kvm-userspace
05acb1ae99a8b55c9745f2e566010213cf52a819 into maint/2.6.29 branch
please?

-- 
Hollis Blanchard
IBM Linux Technology Center