IPv6 Support

IPv6 Support

[Armánd Scholtes]

Dear Madam, Sir

First of all i hope I am asking this question at the right location. If not
sorry for the inconvenience.

Does GDB support IPv6 for cross platform/remote debugging.

I have searched on the internet to obtain a definitive answer but i can find
any. (Results are related to patches etc)

I am working on a project with a device that has IPv6 by default. IPv4 must be
activated on manually.

I did some testing with a cross platform version/build V7.5 of GDB but this one
did not seem to accept IPv6 addresses. I would like to know if IPv6 is supported
so i can determine if i need to invest time in building a version for this
project or should work something out to revert to ipv4.

b.r.

Armand

Re: IPv6 Support

[Jan Kratochvil]

On Tue, 08 May 2018 17:17:34 +0200, Armánd Scholtes wrote:
> Does GDB support IPv6 for cross platform/remote debugging.

Not yet. Sergio Durigan Junior was recently talking about possibly working on
it.


> I have searched on the internet to obtain a definitive answer but i can find
> any. (Results are related to patches etc)

There were some patches in the past on gdb-patches mailing list so you may be
able to apply those but they will probably need some rebases/adjustments.


> should work something out to revert to ipv4.

It may be now easier to rather configure IPv4 on the device.


Jan

Re: IPv6 Support

[Sergio Durigan Junior]

On Wednesday, May 09 2018, Jan Kratochvil wrote:

> On Tue, 08 May 2018 17:17:34 +0200, Armánd Scholtes wrote:
>> Does GDB support IPv6 for cross platform/remote debugging.
>
> Not yet. Sergio Durigan Junior was recently talking about possibly working on
> it.

Thanks for the reply, Jan.

Yes, I am working on it.  Currently implementing IPv6 on gdbserver.

>> I have searched on the internet to obtain a definitive answer but i can find
>> any. (Results are related to patches etc)
>
> There were some patches in the past on gdb-patches mailing list so you may be
> able to apply those but they will probably need some rebases/adjustments.

Most of the patches available only implement IPv6 on GDB, not
gdbserver.  Not sure if that's enough for Armánd, but by all means,
feel free to take a look.

I expect to have something working in the next week.

Cheers,

-- 
Sergio
GPG key ID: 237A 54B1 0287 28BF 00EF  31F4 D0EB 7628 65FC 5E36
Please send encrypted e-mail if possible
http://sergiodj.net/

Re: IPv6 Support

[Armánd Scholtes]

Hello Sergio,

In the end i would need gdbserver and gdb to have IPv6 support for my solution. I assume that after gdbserver has been fitted with IPv6, gdb will be next. I'll monitor the site for updates. I still have some time before i must pick up this issue in our project.

B.r. 

Armánd

> Op 11 mei 2018 om 20:28 schreef Sergio Durigan Junior <sergiodj@redhat.com>:
> 
> On Wednesday, May 09 2018, Jan Kratochvil wrote:
> 
> > On Tue, 08 May 2018 17:17:34 +0200, Armánd Scholtes wrote:
> > 
> > > Does GDB support IPv6 for cross platform/remote debugging.
> > 
> > Not yet. Sergio Durigan Junior was recently talking about possibly working on
> > it.
> 
> Thanks for the reply, Jan.
> 
> Yes, I am working on it. Currently implementing IPv6 on gdbserver.
> 
> > > I have searched on the internet to obtain a definitive answer but i can find
> > > any. (Results are related to patches etc)
> > 
> > There were some patches in the past on gdb-patches mailing list so you may be
> > able to apply those but they will probably need some rebases/adjustments.
> 
> Most of the patches available only implement IPv6 on GDB, not
> gdbserver. Not sure if that's enough for Armánd, but by all means,
> feel free to take a look.
> 
> I expect to have something working in the next week.
> 
> Cheers,
> 
> --
> Sergio
> GPG key ID: 237A 54B1 0287 28BF 00EF 31F4 D0EB 7628 65FC 5E36
> Please send encrypted e-mail if possible
> http://sergiodj.net/

IPv6 support

[Ashutosh Pal]

Hi Experts,

Could anyone please confirm if gdb today has support for connecting to IPv6 RSP targets? In the code (7.12), I still see references to old API's like gethostbyname(..) etc. and no use of types like sockaddr_in6 etc. Searching over internet, I found the following mail thread talking about a patch for supporting IPv6: https://sourceware.org/ml/gdb-patches/2014-02/msg00253.html

Is this patch or any other fixes related to IPv6 included in any latest gdb releases?

Thanks and Regards,
Ashutosh

Re: IPv6 support

[Ruslan Kabatsayev]

Hi,

On 4 July 2018 at 15:43, Ashutosh Pal <Ashutosh.Pal@synopsys.com> wrote:
> Hi Experts,
>
> Could anyone please confirm if gdb today has support for connecting to IPv6 RSP targets? In the code (7.12), I still see references to old API's like gethostbyname(..) etc. and no use of types like sockaddr_in6 etc. Searching over internet, I found the following mail thread talking about a patch for supporting IPv6: https://sourceware.org/ml/gdb-patches/2014-02/msg00253.html

Here're the newer threads related to IPv6 support:
patch v1: https://sourceware.org/ml/gdb-patches/2018-05/msg00629.html
patch v2: https://sourceware.org/ml/gdb-patches/2018-06/msg00384.html .

>
> Is this patch or any other fixes related to IPv6 included in any latest gdb releases?

AFAICT, previous attempts have not been finished. Maybe the current one will...

>
> Thanks and Regards,
> Ashutosh
>

Regards,
Ruslan

Re: IPv6 support

[Sergio Durigan Junior]

On Wednesday, July 04 2018, Ruslan Kabatsayev wrote:

> Hi,
>
> On 4 July 2018 at 15:43, Ashutosh Pal <Ashutosh.Pal@synopsys.com> wrote:
>> Hi Experts,
>>
>> Could anyone please confirm if gdb today has support for connecting
>> to IPv6 RSP targets? In the code (7.12), I still see references to
>> old API's like gethostbyname(..) etc. and no use of types like
>> sockaddr_in6 etc. Searching over internet, I found the following
>> mail thread talking about a patch for supporting IPv6:
>> https://sourceware.org/ml/gdb-patches/2014-02/msg00253.html
>
> Here're the newer threads related to IPv6 support:
> patch v1: https://sourceware.org/ml/gdb-patches/2018-05/msg00629.html
> patch v2: https://sourceware.org/ml/gdb-patches/2018-06/msg00384.html .
>
>>
>> Is this patch or any other fixes related to IPv6 included in any latest gdb releases?
>
> AFAICT, previous attempts have not been finished. Maybe the current one will...

Yeah, I intend to submit a v3 today.

Cheers,

-- 
Sergio
GPG key ID: 237A 54B1 0287 28BF 00EF  31F4 D0EB 7628 65FC 5E36
Please send encrypted e-mail if possible
http://sergiodj.net/

Re: IPv6 support

[Sergio Durigan Junior]

On Wednesday, July 04 2018, Ashutosh Pal wrote:

> Hi Experts,
>
> Could anyone please confirm if gdb today has support for connecting to
> IPv6 RSP targets? In the code (7.12), I still see references to old
> API's like gethostbyname(..) etc. and no use of types like
> sockaddr_in6 etc. Searching over internet, I found the following mail
> thread talking about a patch for supporting IPv6:
> https://sourceware.org/ml/gdb-patches/2014-02/msg00253.html
>
> Is this patch or any other fixes related to IPv6 included in any latest gdb releases?

FWIW, the patch has been recently pushed upstream.  Unfortunately it
won't be present in the 8.2 release, but you can always compile GDB.

Thanks,

-- 
Sergio
GPG key ID: 237A 54B1 0287 28BF 00EF  31F4 D0EB 7628 65FC 5E36
Please send encrypted e-mail if possible
http://sergiodj.net/