From 714548ef913f3b0c12c5381d46c8ff1e5b703865 Mon Sep 17 00:00:00 2001
From: Vadim Sychev <sychev@diakont.com>
Date: Fri, 15 Jul 2022 09:44:07 +0300
Subject: [PATCH] =?UTF-8?q?dev(UML-981):=20=D0=94=D0=BE=D0=B1=D0=B0=D0=B2?=
 =?UTF-8?q?=D0=B8=D0=BB=20=D1=81=D0=BA=D1=80=D0=B8=D0=BF=D1=82=20=D0=BE?=
 =?UTF-8?q?=D0=B1=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1=8F=20gdb?=
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---
 debug_support/gdb_update.sh | 37 +++++++++++++++++++++++++++++++++++++
 debug_support/readme.txt    |  5 +++++
 2 files changed, 42 insertions(+)
 create mode 100755 debug_support/gdb_update.sh

diff --git a/debug_support/gdb_update.sh b/debug_support/gdb_update.sh
new file mode 100755
index 0000000..8a70330
--- /dev/null
+++ b/debug_support/gdb_update.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env sh
+
+# Motivation: build gdb 12.1 from source because of this issue: https://github.com/Gallopsled/pwntools/issues/1783
+
+# Optional: remove existing gdb
+echo ">>>> remove existing gdb:"
+echo ">>>> sudo apt remove gdb gdbserver"
+#sudo apt remove gdb gdbserver
+
+# Get latest source from https://ftp.gnu.org/gnu/gdb/
+echo ">>>> Get latest source from https://ftp.gnu.org/gnu/gdb/:"
+echo ">>>> wget https://ftp.gnu.org/gnu/gdb/gdb-12.1.tar.xz"
+wget https://ftp.gnu.org/gnu/gdb/gdb-12.1.tar.xz
+
+echo ">>>> tar xf gdb-12.1.tar.xz"
+tar xf gdb-12.1.tar.xz
+
+# Install necessary build tools
+echo ">>>> Install necessary build tools:"
+echo ">>>> sudo apt install -y build-essential texinfo bison flex"
+sudo apt install -y build-essential texinfo bison flex python3-dev libgmp-dev
+echo ">>>> cd gdb-12.1"
+cd gdb-12.1
+echo ">>>> Configure with python3 support"
+echo ">>>> ./configure --with-python=/usr/bin/python3"
+# Configure with python3 support
+./configure --with-python=/usr/bin/python3
+
+# Build (this takes a while)
+echo ">>>> Build (this takes a while)"
+echo ">>>> make -j8"
+make -j8
+
+# Install binary
+echo ">>>> Install binary:"
+echo ">>>> sudo make install"
+sudo make install
diff --git a/debug_support/readme.txt b/debug_support/readme.txt
index d85447e..49f5501 100644
--- a/debug_support/readme.txt
+++ b/debug_support/readme.txt
@@ -13,3 +13,8 @@ sudo chmod -x debug_support/gdb
 -i - eth-интерфейс к которому подключен Profinet мастер
 -v - уровень логов, чтобы был Debug нужно указать 4 раза
 -p - папка для хранения настроечных файлов
+
+
+Если версия Ubuntu 22.04, то там есть баг с gdb - он падает при переключении на другой поток в отлажеваемом ПО
+Для исправления нужно либо установить Ubuntu 22.10, либо собрать gdb 12.1.
+Для сборки запустить скрипт gdb_update.sh