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Re: [PATCH v8 09/16] docs/devel/testing: add -gdb option to the debuggin

From: Max Reitz
Subject: Re: [PATCH v8 09/16] docs/devel/testing: add -gdb option to the debugging section of QEMU iotests
Date: Thu, 15 Jul 2021 15:01:35 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

On 05.07.21 08:57, Emanuele Giuseppe Esposito wrote:
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
  docs/devel/testing.rst | 11 +++++++++++
  1 file changed, 11 insertions(+)

diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst
index 9d6a8f8636..8b24e6fb47 100644
--- a/docs/devel/testing.rst
+++ b/docs/devel/testing.rst
@@ -229,6 +229,17 @@ Debugging a test case
  The following options to the ``check`` script can be useful when debugging
  a failing test:
+* ``-gdb`` wraps every QEMU invocation in a ``gdbserver``, which waits for a
+  connection from a gdb client.  The options given to ``gdbserver`` (e.g. the
+  address on which to listen for connections) are taken from the 
+  environment variable.  By default (if ``$GDB_OPTIONS`` is empty), it listens 
+  ``localhost:12345``.
+  It is possible to connect to it for example with
+  ``gdb -iex "target remote $addr"``, where ``$addr`` is the address
+  ``gdbserver`` listens on.
+  If the ``-gdb`` option is not used, ``$GDB_OPTIONS`` is ignored,
+  regardless on whether it is set or not.


With that: Reviewed-by: Max Reitz <mreitz@redhat.com>

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