Re: Patching kernel headers

[milan radulovic <radulovic_milan at yahoo dot com>]

Hi Yann, All,
?
Thank you very much for your promptly reply. Please, let me to explain why I want to patch linux kernel.
?
I asked earlier for the help in resolving the problem with building xtools for the misp-unknown-linux-uclibc target, mips2 architecture, 32 bit, Big Endian, no threads. Arnaud and you helped me to resolve the problem since Arnaud sent me a patch to do that successfully.
?
I?am using xtools for the purpose of executing MIPS?binaries on x86 linux machine.?
?
However, I noticed the problem with some system level simulation issues, they are related to values in fcntl.h file. 
?
Actually, those values /x-tools/mips-unknown-linux-uclibc/mips-unknown-linux-uclibc/include/bits/fcntl.h?are hexadecimal values, whilst in /usr/include/bits/fcntl.h on x86 linux machine are octal values, and unfortunately they are not the same for all flags.
?
Since I would like to have the same values for the flags in /x-tools/mips-unknown-linux-uclibc/mips-unknown-linux-uclibc/include/bits/fcntl.h? like they are on my x86 linux PC in /usr/include/bits/fcntl.h, I thought that changed in linux kernel in xtool could resolve problem.
?
Then, I experienced the problem with recompiling the xtool since change in linux kernel version caused the crash in building in step Installing GMP (I sent you and on mailing list two records about that). The solution for this was to update linux on my PC and rebuilding was successful again.
?
Researching in the Internet I found out that there is no change in fcntl.h file in linux kernel version for mips, so changing linux kernel version in xtool won't help me to get fcntl.h the same like on x86 linux machine.
?
So, my question is related to find out is there any chance that by some patch on the side of xtool could help me to resolve the above mentioned problem with the flags value in fcntl.h file?

Thank you very much for your help and your time.
?
Kind regards
?
Milan


--- On Sun, 10/24/10, Yann E. MORIN <yann.morin.1998@anciens.enib.fr> wrote:


From: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Subject: Re: Patching kernel headers
To: "milan radulovic" <radulovic_milan@yahoo.com>
Cc: crossgcc@sourceware.org
Date: Sunday, October 24, 2010, 7:32 PM


Milan, All,

On Sunday 24 October 2010 18:07:34 milan radulovic wrote:
> I need to apply some patch on the kernel headers.
> Please, is there a way to do it from the patches folder ?

Yes, this is realitvely easy:
- create a directory patches/linux/VERSION
- put your patches in there

Of course, replace VERSION above with the version string of your Linux
kernel, eg:
? patches/linux/2.6.36

Patches will be applied in the order they are listed when the locale is C,
so if you want to ensure a specific order, prefix them with digits:
? 100-my-stuff-1.patch
? 200-my-stuff-2.patch
and so on...

As far as I know, headers as exported by the latest Linux kernel versions
are now in a very good shape (I recall a SCSI issue that was fixed only
recently, but I believe 2.6.34 and up do not have this issue). What are
those patches you need to apply?

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|? Yann E. MORIN? | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software? Designer | \ / CAMPAIGN? ???|? ___? ? ? ? ? ? ???|
| +33 223 225 172 `------------.-------:? X? AGAINST? ? ? |? \e/? There is no? |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL? ? |???v???conspiracy.? |
'------------------------------^-------^------------------^--------------------'







--
For unsubscribe information see http://sourceware.org/lists.html#faq