From f8f9cde34fb3f4fb6b290acf8cfc34a468bf0243 Mon Sep 17 00:00:00 2001
From: Adrian Edwards <17362949+MoralCode@users.noreply.github.com>
Date: Fri, 27 Jun 2025 01:52:54 -0400
Subject: [PATCH 1/2] first pass at multiple debug shells docs
---
docs/debugging.rst | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/docs/debugging.rst b/docs/debugging.rst
index 1c213098..c5bbba04 100644
--- a/docs/debugging.rst
+++ b/docs/debugging.rst
@@ -115,6 +115,7 @@ to be installed)::
Using other debugging tools
---------------------------
+
``org.freedesktop.Sdk`` also includes other debugging tools like
`Valgrind `_ which is useful to find memory leaks.
Once inside the :ref:`debugging:Debug shell`, it can be run with::
@@ -131,6 +132,37 @@ access to ``--filesystem=/sys`` to run::
$ flatpak run --command=perf --filesystem=/sys --filesystem=$(pwd) --devel $FLATPAK_ID record -v --
+
+
+Multiple Debug shells in one sandbox
+---------------------------
+
+Sometimes it can be helpful to have multiple debugging shells at a time.
+
+For example, some debugging commands such as `dotnet-dump `_
+expect to be given an identifier for a running process that it will connect to for debugging.
+
+This essentially requires multiple instances of the :ref:`debugging:Debug shell`,
+one to run the app, and one for running the debugging tool.
+
+To accomplish this, locate either the instance or process ID of an existing debug shell with::
+
+ $ flatpak ps
+
+Then you can enter this same sandbox from a new terminal window using::
+
+ $ flatpak enter /bin/bash
+
+
+Note that this second shell likely will not not be configured identically to the original debug
+shell (for example it will likely have different environment variables such as PATH).
+
+
+It may be possible to check whether both shells are indeed in the same sandbox by `checking the namespace `_
+for each debug shell.
+
+
+
Creating a Debug extension
---------------------------
From bd980daa0e8cebdab8eda8e19ee2bf531e936b5a Mon Sep 17 00:00:00 2001
From: Adrian Edwards <17362949+MoralCode@users.noreply.github.com>
Date: Fri, 27 Jun 2025 09:14:40 -0400
Subject: [PATCH 2/2] Include explaination for listing namespaces
---
docs/debugging.rst | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/docs/debugging.rst b/docs/debugging.rst
index c5bbba04..f529a9f0 100644
--- a/docs/debugging.rst
+++ b/docs/debugging.rst
@@ -135,7 +135,7 @@ access to ``--filesystem=/sys`` to run::
Multiple Debug shells in one sandbox
----------------------------
+------------------------------------
Sometimes it can be helpful to have multiple debugging shells at a time.
@@ -154,13 +154,16 @@ Then you can enter this same sandbox from a new terminal window using::
$ flatpak enter /bin/bash
-Note that this second shell likely will not not be configured identically to the original debug
+Note that this second shell likely will not be configured identically to the original debug
shell (for example it will likely have different environment variables such as PATH).
-It may be possible to check whether both shells are indeed in the same sandbox by `checking the namespace `_
-for each debug shell.
+You can check whether both shells are indeed in the same sandbox by `checking the namespaces `_
+visible in each debug shell and verifying that they are the same.
+
+The easiest way to do this is to list the visible namespaces using::
+ $ lsns --type pid
Creating a Debug extension