Big include file move breaks user mode

Big include file move breaks user mode

[Sean MacLennan]

Almost all of the includes in include/asm-powerpc where moved to
arch/powerpc/include/asm. This is breaking almost all of my user mode
code... so I assume I am doing something very wrong.

Here is a simple program that flushes stdout for no apparent reason ;)

#include <stdio.h>
#include <sys/ioctl.h>

int main(int argc, char *argv[])
{
	ioctl(1, TCFLSH, 1);
	return 0;
}

This builds and runs fine under x86 and ppc before the include file
move. After the move, the compile fails because gcc can't find
asm/ioctls.h which is needed by /usr/include/bits/ioctls.h (let's
ignore the cross-compile path for now).

The other big one I am hitting is that /usr/include/bits/errno.h
includes linux/errno.h which includes asm/errno.h which no longer
exists.

Anybody know how to fix this? I am using the DENX 4.1 toolchain if that
helps. Also, if there is a better place to post this, let me know. I
posted here since it only affects powerpc cross compiles... x86 still
has all the includes in "the right place".

Should include/asm be a link to arch/powerpc/include/asm?

Cheers,
   Sean

Re: Big include file move breaks user mode

[Kumar Gala]

On Aug 5, 2008, at 11:09 AM, Sean MacLennan wrote:

> Almost all of the includes in include/asm-powerpc where moved to
> arch/powerpc/include/asm. This is breaking almost all of my user mode
> code... so I assume I am doing something very wrong.
>
> Here is a simple program that flushes stdout for no apparent reason ;)
>
> #include <stdio.h>
> #include <sys/ioctl.h>
>
> int main(int argc, char *argv[])
> {
> 	ioctl(1, TCFLSH, 1);
> 	return 0;
> }
>
> This builds and runs fine under x86 and ppc before the include file
> move. After the move, the compile fails because gcc can't find
> asm/ioctls.h which is needed by /usr/include/bits/ioctls.h (let's
> ignore the cross-compile path for now).
>
> The other big one I am hitting is that /usr/include/bits/errno.h
> includes linux/errno.h which includes asm/errno.h which no longer
> exists.
>
> Anybody know how to fix this? I am using the DENX 4.1 toolchain if  
> that
> helps. Also, if there is a better place to post this, let me know. I
> posted here since it only affects powerpc cross compiles... x86 still
> has all the includes in "the right place".
>
> Should include/asm be a link to arch/powerpc/include/asm?

Are you using the headers_install option?  or just point to a kernel  
tree.

- k

Re: Big include file move breaks user mode

[Arnd Bergmann]

On Tuesday 05 August 2008, Sean MacLennan wrote:
> Should include/asm be a link to arch/powerpc/include/asm?

The user space headers are provided by your distribution, not
by the kernel, so include/asm should be a directory, not a symlink.
If you are building your own distro, don't just copy the files
but rather use 'make headers_install' to get a sanitized version.

	Arnd <><

Re: Big include file move breaks user mode

[Sean MacLennan]

On Wed, 6 Aug 2008 16:51:40 +0200
"Arnd Bergmann" <arnd@arndb.de> wrote:

> The user space headers are provided by your distribution, not
> by the kernel, so include/asm should be a directory, not a symlink.
> If you are building your own distro, don't just copy the files
> but rather use 'make headers_install' to get a sanitized version.

Sorry, I forgot to reply to the list :( Kumar mentioned the "make
headers_install" and I got it working with our build system. So
everything is back on track.

Cheers,
   Sean

Re: Big include file move breaks user mode

[René Rebe]

Hi,

Sean MacLennan wrote:
> On Wed, 6 Aug 2008 16:51:40 +0200
> "Arnd Bergmann" <arnd@arndb.de> wrote:
>
>   
>> The user space headers are provided by your distribution, not
>> by the kernel, so include/asm should be a directory, not a symlink.
>> If you are building your own distro, don't just copy the files
>> but rather use 'make headers_install' to get a sanitized version.
>>     
>
> Sorry, I forgot to reply to the list :( Kumar mentioned the "make
> headers_install" and I got it working with our build system. So
> everything is back on track.
>   
Heh, you might also consider using "off the shelf" build systems, such
as the T2 SDE:

  http://t2-project.org

To avoid re-inventing the whell again and again.

Yours,

-- 
  René Rebe - ExactCODE GmbH - Europe, Germany, Berlin
  http://exactcode.de | http://t2-project.org | http://rene.rebe.name

Re: Big include file move breaks user mode

[René Rebe]

Hi,

Sean MacLennan wrote:
> On Wed, 6 Aug 2008 16:51:40 +0200
> "Arnd Bergmann" <arnd@arndb.de> wrote:
>
>   
>> The user space headers are provided by your distribution, not
>> by the kernel, so include/asm should be a directory, not a symlink.
>> If you are building your own distro, don't just copy the files
>> but rather use 'make headers_install' to get a sanitized version.
>>     
>
> Sorry, I forgot to reply to the list :( Kumar mentioned the "make
> headers_install" and I got it working with our build system. So
> everything is back on track.
>   

Heh, you might also consider using "off the shelf" build systems, such
as the T2 SDE:

  http://t2-project.org

To avoid re-inventing the wheel again and again.

Yours,

-- 
  René Rebe - ExactCODE GmbH - Europe, Germany, Berlin
  http://exactcode.de | http://t2-project.org | http://rene.rebe.name

Re: Big include file move breaks user mode

[Kumar Gala]

On Aug 6, 2008, at 12:44 PM, Ren=E9 Rebe wrote:

>
> Heh, you might also consider using "off the shelf" build systems, such
> as the T2 SDE:
>
> http://t2-project.org
>
> To avoid re-inventing the wheel again and again.
>
> Yours,
>

Whee.. another rootfs build system.  Why we can't converge some of =20
these towards so we have a larger community is beyond me.

- k=