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<title>GDB - C</title>
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<a href="index.html">Development Index</a>
<h1>GDB - C</h1>
<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>
</p>
<pre>
$ touch NEWS README AUTHORS ChangeLog
$ mkdir -p src/bin src/lib
</pre>
<p>
<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>
</p>
<p>To use gdb you need to compile program with -g flag. To
debug a program;</p>
<pre>
gdb program
</pre>
<p>If the program needs arguments you can set it;</p>
<pre>
(gdb)set args -parameter1 -parameter2
</pre>
<p>To start the program you can type run, this way gdb
will try to run the program until the end. If program
crash, gdb will stop it for debuging.</p>
<pre>
(gdb) run
</pre>
<pre>
n - execute next line
s - step in next line
b - backtrace
info locals
print
x
</pre>
<h2>SysCalls</h2>
<pre>catch syscall open</pre>
<h2>Threads</h2>
<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>
<p><a href=" http://ftp.gnu.org/old-gnu/Manuals/gdb/html_node/gdb_39.html#SEC40">Stopping and Starting</a>
multi-thread programs</p>
<pre>
break linespec thread threadno
</pre>
<h2>Strace</h2>
<pre>
strace -c ./program
</pre>
<a href="index.html">Development Index</a>
<p>This is part of the c9-doc Manual.
Copyright (C) 2016
c9 Team.
See the file <a href="../fdl-1.3-standalone.html">Gnu Free Documentation License</a>
for copying conditions.</p>
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