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Re: [PATCH] Implement IPv6 support for GDB/gdbserver


> From: Sergio Durigan Junior <sergiodj@redhat.com>
> Cc: Pedro Alves <palves@redhat.com>,
> 	Eli Zaretskii <eliz@gnu.org>,
> 	Jan Kratochvil <jan.kratochvil@redhat.com>,
> 	Paul Fertser <fercerpav@gmail.com>,
> 	Tsutomu Seki <sekiriki@gmail.com>,
> 	Sergio Durigan Junior <sergiodj@redhat.com>
> Date: Wed, 23 May 2018 14:57:19 -0400
> 
> gdb/ChangeLog:
> yyyy-mm-dd  Sergio Durigan Junior  <sergiodj@redhat.com>
> 	    Jan Kratochvil  <jan.kratochvil@redhat.com>
> 	    Paul Fertser  <fercerpav@gmail.com>
> 	    Tsutomu Seki  <sekiriki@gmail.com>
> 
> 	* Makefile.in (COMMON_SFILES): Add 'common/netstuff.c'.
> 	(HFILES_NO_SRCDIR): Add 'common/netstuff.h'.
> 	* NEWS (Changes since GDB 8.1): Mention IPv6 support.
> 	* common/netstuff.c: New file.
> 	* common/netstuff.h: New file.
> 	* ser-tcp.c: Include 'netstuff.h' and 'wspiapi.h'.
> 	(net_open): Handle IPv6-style hostnames; implement support for
> 	IPv6 connections.
> 
> gdb/gdbserver/ChangeLog:
> yyyy-mm-dd  Sergio Durigan Junior  <sergiodj@redhat.com>
> 	    Jan Kratochvil  <jan.kratochvil@redhat.com>
> 	    Paul Fertser  <fercerpav@gmail.com>
> 	    Tsutomu Seki  <sekiriki@gmail.com>
> 
> 	* Makefile.in (SFILES): Add '$(srcdir)/common/netstuff.c'.
> 	(OBS): Add 'common/netstuff.o'.
> 	* gdbreplay.c: Include 'wspiapi.h'.
> 	(remote_open): Implement support for IPv6
> 	connections.
> 	* remote-utils.c: Include 'netstuff.h', 'filestuff.h'
> 	and 'wspiapi.h'.
> 	(handle_accept_event): Accept connections from IPv6 sources.
> 	(remote_prepare): Handle IPv6-style hostnames; implement
> 	support for IPv6 connections.
> 	(remote_open): Implement support for printing connections from
> 	IPv6 sources.
> 
> gdb/testsuite/ChangeLog:
> yyyy-mm-dd  Sergio Durigan Junior  <sergiodj@redhat.com>
> 	    Jan Kratochvil  <jan.kratochvil@redhat.com>
> 	    Paul Fertser  <fercerpav@gmail.com>
> 	    Tsutomu Seki  <sekiriki@gmail.com>
> 
> 	* README (Testsuite Parameters): Mention new 'GDB_TEST_IPV6'
> 	parameter.
> 	* boards/gdbserver-base.exp (get_comm_port_localhost_ipv6):
> 	New procedure.
> 	* boards/native-extended-gdbserver.exp: Detect 'GDB_TEST_IPV6'
> 	and change board info accordingly.
> 	* boards/native-gdbserver.exp: Likewise.
> 	* gdb.server/run-without-local-binary.exp: Improve regexp used
> 	for detecting when a remote debugging connection succeeds.
> 
> gdb/doc/ChangeLog:
> yyyy-mm-dd  Sergio Durigan Junior  <sergiodj@redhat.com>
> 	    Jan Kratochvil  <jan.kratochvil@redhat.com>
> 	    Paul Fertser  <fercerpav@gmail.com>
> 	    Tsutomu Seki  <sekiriki@gmail.com>
> 
> 	* gdb.texinfo (Remote Connection Commands): Add explanation
> 	about new IPv6 support.  Add new connection prefixes.

The documentation parts are approved, with a couple of minor comments:

>  @item target remote @code{@var{host}:@var{port}}
> +@itemx target remote @code{@var{@r{[}host@r{]}}:@var{port}}

Isn't having 2 lines here redundant?  If the HOST part is optional,
the second line already covers the first, right?

Similarly with other forms of this command.

>  @item target remote @code{udp:@var{host}:@var{port}}
> +@itemx target remote @code{udp:@var{host}:@var{port}}

And here these two lines are exactly identical, right?

> +To connect to port 2828 on a terminal server whose address is
> +@code{2001::f8ff::67cf}, you can either use the square bracket syntax:
> +
> +@smallexample
> +target remote [2001::f8ff::67cf]:2828
> +@end smallexample
> +
> +Or explicitly specify the @acronym{IPv6} protocol:

The last sentence is actually a continuation of the one before the
example.  So it should start with a lower-case letter, and please
insert a @noindent (on its own line) before that, to prevent Texnfo
processors from indenting that line.

Thanks.


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