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+<!DOCTYPE html>
+<html dir="ltr" lang="en">
+    <head>
+        <meta charset='utf-8'>
+        <title>Debugging</title>
+    </head>
+    <body>
+        <a href="../index.html">Development Index</a>
+
+        <h1>Debugging</h1>
+
+        <p>If the program needs arguments you can set it;</p>
+
+        <pre>
+        (gdb)set args -parameter1 -parameter2
+        </pre>
+
+        <p>To start gdb in TUI mode press;</p>
+
+        <dl>
+            <dt>Ctrl-x A</dt>
+            <dd>Enter or leave TUI.</dd>
+            <dt>Ctrl-x 0</dt>
+            <dd>TUI with only one window.</dd>
+            <dt>Ctrl-x 2</dt>
+            <dd>TUI with more than two windows.</dd>
+            <dt>Ctrl-x o</dt>
+            <dd>Change active window.</dd>
+            <dt>Ctrl-x s</dt>
+            <dd>TUI single key mode.</dd>
+            <dt>Ctrl-L s</dt>
+            <dd>Refresh screen.</dd>
+            <dt>Up</dt>
+            <dd>Scroll</dd>
+            <dt>Down</dt>
+            <dd>Scroll</dd>
+            <dt>Left</dt>
+            <dd>Scroll</dd>
+            <dt>Right</dt>
+            <dd>Scroll</dd>
+        </dl>
+
+        <pre>
+        (gdb) info win
+        (gdb) fs next
+        (gdb) fs SRC
+        </pre>
+
+
+        <pre>
+        b - backtrace
+        info locals
+        display
+        print
+        x
+        catch syscall open
+        </pre>
+
+        <p>When new thread is created you receive
+        a notification. To get information about
+        threads;</p>
+
+        <pre>
+        info threads
+        </pre>
+
+        <p>To select thread;</p>
+
+        <pre>
+        thread 1
+        </pre>
+
+        <pre>
+        break linespec thread threadno
+        </pre>
+
+        <pre>
+        strace -c ./program
+        </pre>
+
+
+        <p><a href="http://blog.fourthbit.com/2013/06/18/creating-an-open-source-program-in-c-with-autotools-part-1-of-2/">C program with autotools</a>
+        <a href="http://web.eecs.umich.edu/~sugih/pointers/gdbQS.html">GDB Quick Start</a>,
+        <a href="https://www.hackerschool.com/blog/5-learning-c-with-gdb">Learning C with GDB</a>
+        and <a href="http://www.dirac.org/linux/gdb/02a-Memory_Layout_And_The_Stack.php">Memory Layout and the Stack</a>
+        are great sources of introductory information.
+        <a href="http://ftp.gnu.org/old-gnu/Manuals/gdb/html_node/gdb_39.html#SEC40">Stopping and Starting</a>
+        multi-thread programs</p>
+
+        <a href="../index.html">Development Index</a>
+
+        <p>
+        This is part of the c9-doc Manual.
+        Copyright (C) 2018
+        c9 team.
+        See the file <a href="../../fdl-1.3-standalone.html">Gnu Free Documentation License</a>
+        for copying conditions.</p>
+    </body>
+</html>