[Fwd: Re: make install on ppc]

[Fwd: Re: make install on ppc]

[Hans Fugal]

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Is there something that stops us from having a make install target for ppc?

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From: Sam Ravnborg <sam@ravnborg.org>
To: Hans Fugal <hans@fugal.net>
Cc: kai@germaschewski.name
Subject: Re: make install on ppc
Date: Tue, 21 Mar 2006 07:29:43 +0100
Message-ID: <20060321062943.GA3677@mars.ravnborg.org>

On Sat, Mar 18, 2006 at 05:19:19PM -0700, Hans Fugal wrote:
> I apologize if you are not the right people to send this to. On i386
> there is a make install target, but on ppc there is not. The
> distribution is Debian in both cases, and the sources are plain vanilla.
> 
> Is this an oversight?
This is up to the arch maintainers to add as required.
Please ask the at relevant ppc mailing list.

	Sam

Re: make install on ppc

[Hollis Blanchard]

On Mar 21, 2006, at 8:08 AM, Hans Fugal wrote:

> Is there something that stops us from having a make install target for 
> ppc?

Why do you want it, and what would it do? Clearly not many people have 
needed it so far...

-Hollis

Re: make install on ppc

[Arnd Bergmann]

Am Sunday 26 March 2006 21:26 schrieb Hollis Blanchard:
> On Mar 21, 2006, at 8:08 AM, Hans Fugal wrote:
> > Is there something that stops us from having a make install target for
> > ppc?
>
> Why do you want it, and what would it do? Clearly not many people have
> needed it so far...

I've missed it a few times, typing 'make install' by habit, but thought
it was a bug in my own setup, so I didn't bother looking what was
missing.

	Arnd <><

Re: make install on ppc

[Hans Fugal]

Hollis Blanchard wrote:
> On Mar 21, 2006, at 8:08 AM, Hans Fugal wrote:
> 
>> Is there something that stops us from having a make install target for 
>> ppc?
> 
> Why do you want it, and what would it do? Clearly not many people have 
> needed it so far...

I bet a lot of people have typed it, wished it was there, then worked 
around it. That's what I've been doing for a year now.

It doesn't do much - basically it has the proper dependencies and runs 
installkernel with the appropriate arguments (as indicated by `make help`).

Thanks

Re: make install on ppc

[Jin Qi Huang]

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I also think the 'make install' is very useful, now on ia32, the 'make 
install' provided by the latest kernel linux-2.6.16 not only create 
initrd, copy vmlinuz and System.map to /boot directory, but also update 
grub, ppc32 does not provide this useful feature, maybe it is a pity!

--
Regards,

MCP Test, Linux Technology Center, China Systems & Technology Lab
China Development Labs, Beijing      Email: huangjq@cn.ibm.com



Hans Fugal <hans@fugal.net> 
Sent by: linuxppc-dev-bounces+huangjq=cn.ibm.com@ozlabs.org
2006-03-27 05:44

To
Hollis Blanchard <hollis@penguinppc.org>
cc
linuxppc-dev list <linuxppc-dev@ozlabs.org>
Subject
Re: make install on ppc






Hollis Blanchard wrote:
> On Mar 21, 2006, at 8:08 AM, Hans Fugal wrote:
> 
>> Is there something that stops us from having a make install target for 
>> ppc?
> 
> Why do you want it, and what would it do? Clearly not many people have 
> needed it so far...

I bet a lot of people have typed it, wished it was there, then worked 
around it. That's what I've been doing for a year now.

It doesn't do much - basically it has the proper dependencies and runs 
installkernel with the appropriate arguments (as indicated by `make 
help`).

Thanks
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev


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Re: make install on ppc

[Brent Cook]

On Sunday 26 March 2006 19:42, Jin Qi Huang wrote:
> I also think the 'make install' is very useful, now on ia32, the 'make
> install' provided by the latest kernel linux-2.6.16 not only create
> initrd, copy vmlinuz and System.map to /boot directory, but also update
> grub, ppc32 does not provide this useful feature, maybe it is a pity!
>

Maybe narrow it to define 'make install' for new world/old world Macintoshes, 
or IBM machines? I can't see a generic make install being useful for the 
wider range of platforms that fall under ppc.

'make install' appears to me to be very platform dependent. Sure, on x86, you 
can reasonably assume that the majority of systems have the kernel on a disk 
under /boot and the bootloader is grub or lilo. I have 5 ppc machines 
currently, and no two use the same bootloader or kernel image. I've seen 
u-boot, yaboot, quik, powerboot (Motorola/Force), xmon (XES) and more, and 
they all required different post-processing to the kernel image to boot. For 
most of these, there is no way to programmatically guess where a particular 
kernel image should go to work with the boot loader.

 - Brent

Re: make install on ppc

[Hollis Blanchard]

On Mar 26, 2006, at 7:56 PM, Brent Cook wrote:

> On Sunday 26 March 2006 19:42, Jin Qi Huang wrote:
>> I also think the 'make install' is very useful, now on ia32, the 'make
>> install' provided by the latest kernel linux-2.6.16 not only create
>> initrd, copy vmlinuz and System.map to /boot directory, but also 
>> update
>> grub, ppc32 does not provide this useful feature, maybe it is a pity!

The feature sounds like a good idea to me, even if it's just the 
copying files part. Do any PPC distros provide a working installkernel 
script?

> Maybe narrow it to define 'make install' for new world/old world 
> Macintoshes,
> or IBM machines? I can't see a generic make install being useful for 
> the
> wider range of platforms that fall under ppc.
>
> 'make install' appears to me to be very platform dependent. Sure, on 
> x86, you
> can reasonably assume that the majority of systems have the kernel on 
> a disk
> under /boot and the bootloader is grub or lilo. I have 5 ppc machines
> currently, and no two use the same bootloader or kernel image. I've 
> seen
> u-boot, yaboot, quik, powerboot (Motorola/Force), xmon (XES) and more, 
> and
> they all required different post-processing to the kernel image to 
> boot. For
> most of these, there is no way to programmatically guess where a 
> particular
> kernel image should go to work with the boot loader.

If you have an unusual platform, don't run make install and you have 
lost nothing... :)

-Hollis

Re: make install on ppc

[Jin Qi Huang]

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Now on ia32, there are also a lot of bootloaders, currently 'make install' 
can update lilo and grub, on ppc desktop and enterprise computing, we 
mainly use yaboot as the bootloader, I think ppc 'make install' can at 
least support yaboot.

--
Regards,

MCP Test, Linux Technology Center, China Systems & Technology Lab
China Development Labs, Beijing      Email: huangjq@cn.ibm.com



Hollis Blanchard <hollis@penguinppc.org> 
Sent by: linuxppc-dev-bounces+huangjq=cn.ibm.com@ozlabs.org
2006-03-28 11:43

To
linuxppc-dev list <linuxppc-dev@ozlabs.org>
cc

Subject
Re: make install on ppc






On Mar 26, 2006, at 7:56 PM, Brent Cook wrote:

> On Sunday 26 March 2006 19:42, Jin Qi Huang wrote:
>> I also think the 'make install' is very useful, now on ia32, the 'make
>> install' provided by the latest kernel linux-2.6.16 not only create
>> initrd, copy vmlinuz and System.map to /boot directory, but also 
>> update
>> grub, ppc32 does not provide this useful feature, maybe it is a pity!

The feature sounds like a good idea to me, even if it's just the 
copying files part. Do any PPC distros provide a working installkernel 
script?

> Maybe narrow it to define 'make install' for new world/old world 
> Macintoshes,
> or IBM machines? I can't see a generic make install being useful for 
> the
> wider range of platforms that fall under ppc.
>
> 'make install' appears to me to be very platform dependent. Sure, on 
> x86, you
> can reasonably assume that the majority of systems have the kernel on 
> a disk
> under /boot and the bootloader is grub or lilo. I have 5 ppc machines
> currently, and no two use the same bootloader or kernel image. I've 
> seen
> u-boot, yaboot, quik, powerboot (Motorola/Force), xmon (XES) and more, 
> and
> they all required different post-processing to the kernel image to 
> boot. For
> most of these, there is no way to programmatically guess where a 
> particular
> kernel image should go to work with the boot loader.

If you have an unusual platform, don't run make install and you have 
lost nothing... :)

-Hollis

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Re: make install on ppc

[Geoff Levand]

Hollis Blanchard wrote:
> On Mar 26, 2006, at 7:56 PM, Brent Cook wrote:
> 
>> On Sunday 26 March 2006 19:42, Jin Qi Huang wrote:
>>> I also think the 'make install' is very useful, now on ia32, the
> 'make
>>> install' provided by the latest kernel linux-2.6.16 not only create
>>> initrd, copy vmlinuz and System.map to /boot directory, but also 
>>> update
>>> grub, ppc32 does not provide this useful feature, maybe it is a pity!
> 
> The feature sounds like a good idea to me, even if it's just the 
> copying files part. Do any PPC distros provide a working installkernel 
> script?

Problem is for multi-platform binary builds, 'install' could mean different
things for the different platforms, so to support install, there needs
to be some way to tell the build system what 'install' means that also
works with the muti-platform makefile logic.  The current powerpc makefiles
don't have this, and it would take some non-trivial rework to add it.

There is also the question of what install means when cross building.

I run make from a script that I tell the platform.  The script does
what's needed for that platform to get it built and installed.

-Geoff

Re: make install on ppc

[Hollis Blanchard]

On Tuesday 28 March 2006 13:06, you wrote:
> Problem is for multi-platform binary builds, 'install' could mean differe=
nt
> things for the different platforms, so to support install, there needs
> to be some way to tell the build system what 'install' means that also
> works with the muti-platform makefile logic. =C2=A0The current powerpc ma=
kefiles
> don't have this, and it would take some non-trivial rework to add it.

That is for the distribution- or user-supplied installkernel script to deal=
=20
with.

> There is also the question of what install means when cross building.

So don't run make install when cross-compiling (unless of course your=20
installkernel script supports that).

I don't understand these objections. If someone's platform is so super-spec=
ial=20
that a script couldn't possibly know how to install a kernel, just don't ru=
n=20
make install!

=2DHollis

Re: make install on ppc

[Geoff Levand]

Hollis Blanchard wrote:
> On Tuesday 28 March 2006 13:06, you wrote:
>> Problem is for multi-platform binary builds, 'install' could mean different
>> things for the different platforms, so to support install, there needs
>> to be some way to tell the build system what 'install' means that also
>> works with the muti-platform makefile logic.  The current powerpc makefiles
>> don't have this, and it would take some non-trivial rework to add it.
> 
> That is for the distribution- or user-supplied installkernel script to deal 
> with.


To handle the situation I mentioned, the build system would need to either tell
the installkernel script what to do, or call different installkernel scripts,
so the build system itself needs to have some notion of what install means,
but as I mentioned, that is currently missing from the makefiles.


>> There is also the question of what install means when cross building.
> 
> So don't run make install when cross-compiling (unless of course your 
> installkernel script supports that).


But I would like to...


> I don't understand these objections. If someone's platform is so super-special 
> that a script couldn't possibly know how to install a kernel, just don't run 
> make install!


I guess you misunderstood me.  I'm not objecting nor saying it shouldn't be
done, just stating some of what needs to be done to make it work properly.
The logic needed is not trivial, and more work is needed than just adding
an 'install' target line to a makefile.


-Geoff

Re: make install on ppc

[Paul Mackerras]

Hollis Blanchard writes:

> I don't understand these objections. If someone's platform is so super-special 
> that a script couldn't possibly know how to install a kernel, just don't run 
> make install!

I don't see any problem either.  If someone had bothered to produce a
patch, it would have been applied by now. :)

Paul.