[ptxdist] Patched glibc in a ptxdist BSP

[ptxdist] Patched glibc in a ptxdist BSP

[Guillermo Rodriguez Garcia]

[-- Attachment #1.1: Type: text/plain, Size: 361 bytes --]

Hello all,

I need to include a patched version of glibc in a ptxdist BSP. I know that
glibc itself is not compiled as part of the BSP, but as part of the
toolchain. What is the best way to generate a patched glibc without
recompiling the toolchain ? Is there a recommended procedure for this?

Thank you,

Guillermo Rodriguez Garcia
guille.rodriguez@gmail.com

[-- Attachment #1.2: Type: text/html, Size: 586 bytes --]

[-- Attachment #2: Type: text/plain, Size: 91 bytes --]

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Patched glibc in a ptxdist BSP

[Michael Olbrich]

Hi,

On Tue, Aug 02, 2016 at 07:06:55PM +0200, Guillermo Rodriguez Garcia wrote:
> I need to include a patched version of glibc in a ptxdist BSP. I know that
> glibc itself is not compiled as part of the BSP, but as part of the
> toolchain. What is the best way to generate a patched glibc without
> recompiling the toolchain ? Is there a recommended procedure for this?

There is no procedure for this. The libc is part of toolchain, and mixing
different versions is not a good idea.
And at least with an OSELAS.Toolchain, rebuilding it isn't really a
problem. It's just a PTXdist project.

Michael

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Patched glibc in a ptxdist BSP

[Robert Schwebel]

On Wed, Aug 03, 2016 at 10:04:37AM +0200, Michael Olbrich wrote:
> On Tue, Aug 02, 2016 at 07:06:55PM +0200, Guillermo Rodriguez Garcia wrote:
> > I need to include a patched version of glibc in a ptxdist BSP. I know that
> > glibc itself is not compiled as part of the BSP, but as part of the
> > toolchain. What is the best way to generate a patched glibc without
> > recompiling the toolchain ? Is there a recommended procedure for this?
> 
> There is no procedure for this. The libc is part of toolchain, and mixing
> different versions is not a good idea.
> And at least with an OSELAS.Toolchain, rebuilding it isn't really a
> problem. It's just a PTXdist project.

Can you elaborate why you need to patch the toolchain? If it's of
general interest, we might be interested in the patches.

rsc
-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Patched glibc in a ptxdist BSP

[Guillermo Rodriguez Garcia]

[-- Attachment #1.1: Type: text/plain, Size: 1327 bytes --]

Hi Michael,

2016-08-03 10:04 GMT+02:00 Michael Olbrich <m.olbrich@pengutronix.de>:

> Hi,
>
> On Tue, Aug 02, 2016 at 07:06:55PM +0200, Guillermo Rodriguez Garcia wrote:
> > I need to include a patched version of glibc in a ptxdist BSP. I know
> that
> > glibc itself is not compiled as part of the BSP, but as part of the
> > toolchain. What is the best way to generate a patched glibc without
> > recompiling the toolchain ? Is there a recommended procedure for this?
>
> There is no procedure for this. The libc is part of toolchain, and mixing
> different versions is not a good idea.
> And at least with an OSELAS.Toolchain, rebuilding it isn't really a
> problem. It's just a PTXdist project.
>

Thank you for your answer. Probably I did not explain my problem correctly.
Rebuilding the toolchain per se is not a problem; the problem is how to
deploy the patched library. The process of rebuilding the toolchain
basically installs the (fixed) toolchain in my development machine. This is
perfect for the regular development cycle, however in this case what I
really need is a way to deploy a hotfix with the patched library on the
target systems (that are already running). So I was looking for a way to
generate an ipkg/opkg or something that I can easily deploy.

Guillermo Rodriguez Garcia
guille.rodriguez@gmail.com

[-- Attachment #1.2: Type: text/html, Size: 1874 bytes --]

[-- Attachment #2: Type: text/plain, Size: 91 bytes --]

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Patched glibc in a ptxdist BSP

[Guillermo Rodriguez Garcia]

[-- Attachment #1.1: Type: text/plain, Size: 1098 bytes --]

2016-08-03 11:37 GMT+02:00 Robert Schwebel <r.schwebel@pengutronix.de>:

> On Wed, Aug 03, 2016 at 10:04:37AM +0200, Michael Olbrich wrote:
> > On Tue, Aug 02, 2016 at 07:06:55PM +0200, Guillermo Rodriguez Garcia
> wrote:
> > > I need to include a patched version of glibc in a ptxdist BSP. I know
> that
> > > glibc itself is not compiled as part of the BSP, but as part of the
> > > toolchain. What is the best way to generate a patched glibc without
> > > recompiling the toolchain ? Is there a recommended procedure for this?
> >
> > There is no procedure for this. The libc is part of toolchain, and mixing
> > different versions is not a good idea.
> > And at least with an OSELAS.Toolchain, rebuilding it isn't really a
> > problem. It's just a PTXdist project.
>
> Can you elaborate why you need to patch the toolchain? If it's of
> general interest, we might be interested in the patches.
>

Hi Robert,

I need to deploy a hotfix for a known glibc bug that affected glibc-2.16.
This will not be needed for more recent glibc versions.

Guillermo Rodriguez Garcia
guille.rodriguez@gmail.com

[-- Attachment #1.2: Type: text/html, Size: 1709 bytes --]

[-- Attachment #2: Type: text/plain, Size: 91 bytes --]

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Patched glibc in a ptxdist BSP

[Juergen Borleis]

Hi,

On Wednesday 03 August 2016 11:45:57 Guillermo Rodriguez Garcia wrote:
> 2016-08-03 10:04 GMT+02:00 Michael Olbrich <m.olbrich@pengutronix.de>:
> > On Tue, Aug 02, 2016 at 07:06:55PM +0200, Guillermo Rodriguez Garcia wrote:
> > > I need to include a patched version of glibc in a ptxdist BSP. I know
> > > that glibc itself is not compiled as part of the BSP, but as part of the
> > > toolchain. What is the best way to generate a patched glibc without
> > > recompiling the toolchain ? Is there a recommended procedure for this?
> >
> > There is no procedure for this. The libc is part of toolchain, and mixing
> > different versions is not a good idea.
> > And at least with an OSELAS.Toolchain, rebuilding it isn't really a
> > problem. It's just a PTXdist project.
>
> Thank you for your answer. Probably I did not explain my problem correctly.
> Rebuilding the toolchain per se is not a problem; the problem is how to
> deploy the patched library. The process of rebuilding the toolchain
> basically installs the (fixed) toolchain in my development machine. This is
> perfect for the regular development cycle, however in this case what I
> really need is a way to deploy a hotfix with the patched library on the
> target systems (that are already running). So I was looking for a way to
> generate an ipkg/opkg or something that I can easily deploy.

There should be a "platform-<name>/packages/glibc_2.16.0_*.ipk" which could do 
this job.

Cheers
Juergen

-- 
Pengutronix e.K.                              | Juergen Borleis             |
Industrial Linux Solutions                    | http://www.pengutronix.de/  |

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Patched glibc in a ptxdist BSP

[Guillermo Rodriguez Garcia]

[-- Attachment #1.1: Type: text/plain, Size: 3643 bytes --]

Hello,

2016-08-03 12:06 GMT+02:00 Juergen Borleis <jbe@pengutronix.de>:

> Hi,
>
> On Wednesday 03 August 2016 11:45:57 Guillermo Rodriguez Garcia wrote:
> > 2016-08-03 10:04 GMT+02:00 Michael Olbrich <m.olbrich@pengutronix.de>:
> > > On Tue, Aug 02, 2016 at 07:06:55PM +0200, Guillermo Rodriguez Garcia
> wrote:
> > > > I need to include a patched version of glibc in a ptxdist BSP. I know
> > > > that glibc itself is not compiled as part of the BSP, but as part of
> the
> > > > toolchain. What is the best way to generate a patched glibc without
> > > > recompiling the toolchain ? Is there a recommended procedure for
> this?
> > >
> > > There is no procedure for this. The libc is part of toolchain, and
> mixing
> > > different versions is not a good idea.
> > > And at least with an OSELAS.Toolchain, rebuilding it isn't really a
> > > problem. It's just a PTXdist project.
> >
> > Thank you for your answer. Probably I did not explain my problem
> correctly.
> > Rebuilding the toolchain per se is not a problem; the problem is how to
> > deploy the patched library. The process of rebuilding the toolchain
> > basically installs the (fixed) toolchain in my development machine. This
> is
> > perfect for the regular development cycle, however in this case what I
> > really need is a way to deploy a hotfix with the patched library on the
> > target systems (that are already running). So I was looking for a way to
> > generate an ipkg/opkg or something that I can easily deploy.
>
> There should be a "platform-<name>/packages/glibc_2.16.0_*.ipk" which
> could do
> this job.
>

Perfect, this is (almost) what I need. Thank you.

I think ptxdist installs ipkg utils on the host by default, but I cannot
find them. Perhaps it is a private copy?

-- 
Guillermo Rodriguez Garcia
guille.rodriguez@gmail.com

2016-08-03 12:06 GMT+02:00 Juergen Borleis <jbe@pengutronix.de>:

> Hi,
>
> On Wednesday 03 August 2016 11:45:57 Guillermo Rodriguez Garcia wrote:
> > 2016-08-03 10:04 GMT+02:00 Michael Olbrich <m.olbrich@pengutronix.de>:
> > > On Tue, Aug 02, 2016 at 07:06:55PM +0200, Guillermo Rodriguez Garcia
> wrote:
> > > > I need to include a patched version of glibc in a ptxdist BSP. I know
> > > > that glibc itself is not compiled as part of the BSP, but as part of
> the
> > > > toolchain. What is the best way to generate a patched glibc without
> > > > recompiling the toolchain ? Is there a recommended procedure for
> this?
> > >
> > > There is no procedure for this. The libc is part of toolchain, and
> mixing
> > > different versions is not a good idea.
> > > And at least with an OSELAS.Toolchain, rebuilding it isn't really a
> > > problem. It's just a PTXdist project.
> >
> > Thank you for your answer. Probably I did not explain my problem
> correctly.
> > Rebuilding the toolchain per se is not a problem; the problem is how to
> > deploy the patched library. The process of rebuilding the toolchain
> > basically installs the (fixed) toolchain in my development machine. This
> is
> > perfect for the regular development cycle, however in this case what I
> > really need is a way to deploy a hotfix with the patched library on the
> > target systems (that are already running). So I was looking for a way to
> > generate an ipkg/opkg or something that I can easily deploy.
>
> There should be a "platform-<name>/packages/glibc_2.16.0_*.ipk" which
> could do
> this job.
>
> Cheers
> Juergen
>
> --
> Pengutronix e.K.                              | Juergen Borleis
>   |
> Industrial Linux Solutions                    | http://www.pengutronix.de/
>  |
>



-- 
Guillermo Rodriguez Garcia
guille.rodriguez@gmail.com

[-- Attachment #1.2: Type: text/html, Size: 5383 bytes --]

[-- Attachment #2: Type: text/plain, Size: 91 bytes --]

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Patched glibc in a ptxdist BSP

[Juergen Borleis]

Hi,

On Wednesday 03 August 2016 13:29:07 Guillermo Rodriguez Garcia wrote:
> [...]
> > > Rebuilding the toolchain per se is not a problem; the problem is how to
> > > deploy the patched library. The process of rebuilding the toolchain
> > > basically installs the (fixed) toolchain in my development machine.
> > > This is perfect for the regular development cycle, however in this case
> > > what I really need is a way to deploy a hotfix with the patched library
> > > on the target systems (that are already running). So I was looking for a
> > > way to generate an ipkg/opkg or something that I can easily deploy.
> >
> > There should be a "platform-<name>/packages/glibc_2.16.0_*.ipk" which
> > could do this job.
>
> Perfect, this is (almost) what I need. Thank you.
>
> I think ptxdist installs ipkg utils on the host by default, but I cannot
> find them. Perhaps it is a private copy?

?

$ l platform-<name>/sysroot-host/bin/opkg
-rwxr-xr-x 2 jbe ptx 38824 Jul 19 15:34 platform-<name>/sysroot-host/bin/opkg

HOST_PACKAGE_MANAGEMENT_OPKG=y (and thus HOST_OPKG=y and HOST_OPKG_UTILS=y
-> but I'm using ptxdist master)

And this IPK-package ("platform-<name>/packages/glibc_2.16.0_*.ipk") is
generated by the regular rule "rules/glibc.make" for every PTXdist project.

Cheers,
Juergen

-- 
Pengutronix e.K.                              | Juergen Borleis             |
Industrial Linux Solutions                    | http://www.pengutronix.de/  |

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Patched glibc in a ptxdist BSP

[Guillermo Rodriguez Garcia]

[-- Attachment #1.1: Type: text/plain, Size: 1510 bytes --]

Hi Juergen,

2016-08-03 14:48 GMT+02:00 Juergen Borleis <jbe@pengutronix.de>:

> Hi,
>
> On Wednesday 03 August 2016 13:29:07 Guillermo Rodriguez Garcia wrote:
> > [...]
> > > > Rebuilding the toolchain per se is not a problem; the problem is how
> to
> > > > deploy the patched library. The process of rebuilding the toolchain
> > > > basically installs the (fixed) toolchain in my development machine.
> > > > This is perfect for the regular development cycle, however in this
> case
> > > > what I really need is a way to deploy a hotfix with the patched
> library
> > > > on the target systems (that are already running). So I was looking
> for a
> > > > way to generate an ipkg/opkg or something that I can easily deploy.
> > >
> > > There should be a "platform-<name>/packages/glibc_2.16.0_*.ipk" which
> > > could do this job.
> >
> > Perfect, this is (almost) what I need. Thank you.
> >
> > I think ptxdist installs ipkg utils on the host by default, but I cannot
> > find them. Perhaps it is a private copy?
>
> ?
>
> $ l platform-<name>/sysroot-host/bin/opkg
> -rwxr-xr-x 2 jbe ptx 38824 Jul 19 15:34
> platform-<name>/sysroot-host/bin/opkg
>
> HOST_PACKAGE_MANAGEMENT_OPKG=y (and thus HOST_OPKG=y and HOST_OPKG_UTILS=y
> -> but I'm using ptxdist master)
>
> And this IPK-package ("platform-<name>/packages/glibc_2.16.0_*.ipk") is
> generated by the regular rule "rules/glibc.make" for every PTXdist project.
>

Great. Thank you for your help!

Guillermo Rodriguez Garcia
guille.rodriguez@gmail.com

[-- Attachment #1.2: Type: text/html, Size: 2251 bytes --]

[-- Attachment #2: Type: text/plain, Size: 91 bytes --]

_______________________________________________
ptxdist mailing list
ptxdist@pengutronix.de