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copied!<p>How about using <a href="http://en.wikipedia.org/wiki/Strace" rel="noreferrer">strace</a> for system calls and <a href="http://en.wikipedia.org/wiki/Ltrace" rel="noreferrer">ltrace</a> for library calls to see traces instead of using gdb? <a href="http://en.wikipedia.org/wiki/Strace" rel="noreferrer">strace</a> for system calls and <a href="http://en.wikipedia.org/wiki/Ltrace" rel="noreferrer">ltrace</a> for library calls work with any application, even if you don't have the source code.</p> <p>If you have access to the source code, then you could also instrument your own code to do traces. Gcc has a mode that allows you to do that. Here's an <a href="http://ndevilla.free.fr/etrace/" rel="noreferrer">example</a>.</p> <p>Then you would only have to analyze the log files.</p> <p>If you want to use plain GDB, then you can use <a href="http://sourceware.org/gdb/current/onlinedocs/gdb_6.html#SEC40" rel="noreferrer">Breakpoint Command Lists</a></p> <blockquote> <p>You can give any breakpoint (or watchpoint or catchpoint) a series of commands to execute when your program stops due to that breakpoint. For example, you might want to print the values of certain expressions, or enable other breakpoints.</p> </blockquote> <p>And in particular:</p> <blockquote> <p>for example, here is how you could use breakpoint commands to print the value of x at entry to foo whenever x is positive. </p> </blockquote> <pre><code>break foo if x>0 commands silent printf "x is %d\n",x cont end </code></pre>

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