Re: [PATCH 0/6] Add vDefaultInferiorFd feature

[Alexandra Petlanova Hajkova <ahajkova@redhat.com>]

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Ping

On Fri, Nov 17, 2023 at 12:18 PM Alexandra Hájková <ahajkova@redhat.com>
wrote:

> Currently, when GDBserver is run locally using stdio, the inferior
> is unable to read from STDIN so we can't give it any input.
> The main motivation to address this issue is to use GDB together
> with Valgrind, using vgdb --multi feature which allows to run
> Valgrind from inside GDB. Valgrind then acts as a locally run
> GDBserver that uses stdio.
>
> Add a new DefaultInferiorFd feature and the corresponding packet.
> This feature allows GDB to send, to GDBserver, the file descriptor
> numbers of the terminal to which GDB is connected. The inferior is
> then started connected to the same terminal as GDB. This allows the
> inferior run by local GDBserver to read from GDB's STDIN and write
> its output to GDB's STOUT/ERR the same way as native target.
>
>
>
> Alexandra Hájková (6):
>   gdb.server/non-existing-program.exp: Use gdbserver_start.
>   gdb/ser-pipe.c: Duplicate the file descriptors
>   Add new vDefaultInferiorFd packet
>   gdbserver/linux-low.cc: Connect the inferior to the terminal
>   remote.c: Add terminal handling functions
>   Add defaultinf.exp test to the testsuite
>
>  gdb/doc/gdb.texinfo                           |  32 +++++
>  gdb/remote.c                                  |  83 +++++++++++
>  gdb/ser-pipe.c                                |  25 ++++
>  gdb/serial.c                                  |   4 +
>  gdb/serial.h                                  |   4 +
>  gdb/testsuite/gdb.server/defaultinf.c         |  39 ++++++
>  gdb/testsuite/gdb.server/defaultinf.exp       |  59 ++++++++
>  .../gdb.server/non-existing-program.exp       |  54 ++-----
>  gdb/testsuite/lib/gdbserver-support.exp       |  62 +++++---
>  gdbserver/linux-low.cc                        |  32 ++++-
>  gdbserver/server.cc                           | 132 +++++++++++++++++-
>  gdbserver/server.h                            |  12 ++
>  12 files changed, 476 insertions(+), 62 deletions(-)
>  create mode 100644 gdb/testsuite/gdb.server/defaultinf.c
>  create mode 100644 gdb/testsuite/gdb.server/defaultinf.exp
>
> --
> 2.41.0
>
>

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