| <html> |
| <head> |
| <style type="text/css"> |
| body { background-color: #ffffff; |
| color: #000000; |
| font-family: Times, Helvetica, Arial; |
| font-size: 14pt} |
| h4 { margin-bottom: 0.3em} |
| code { color: #000000; |
| font-family: Courier; |
| font-size: 13pt } |
| pre { color: #000000; |
| font-family: Courier; |
| font-size: 13pt } |
| a:link { color: #0000C0; |
| text-decoration: none; } |
| a:visited { color: #0000C0; |
| text-decoration: none; } |
| a:active { color: #0000C0; |
| text-decoration: none; } |
| </style> |
| <title>Cachegrind</title> |
| </head> |
| |
| <body bgcolor="#ffffff"> |
| |
| <a name="title"></a> |
| <h1 align=center>CoreCheck</h1> |
| <center>This manual was last updated on 2002-10-03</center> |
| <p> |
| |
| <center> |
| <a href="mailto:njn25@cam.ac.uk">njn25@cam.ac.uk</a><br> |
| Copyright © 2000-2004 Nicholas Nethercote |
| <p> |
| CoreCheck is licensed under the GNU General Public License, |
| version 2<br> |
| CoreCheck is a Valgrind tool that does very basic error checking. |
| </center> |
| |
| <p> |
| |
| <h2>1 CoreCheck</h2> |
| |
| CoreCheck is a very simple tool for Valgrind. It adds no instrumentation to |
| the program's code, and only reports the few kinds of errors detected by |
| Valgrind's core. It is mainly of use for Valgrind's developers for debugging |
| and regression testing. |
| <p> |
| The errors detected are those found by the core when |
| <code>VG_(needs).core_errors</code> is set. These include: |
| |
| <ul> |
| <li>Pthread API errors (many; eg. unlocking a non-locked mutex)<p> |
| <li>Silly arguments to <code>malloc() </code> et al (eg. negative size)<p> |
| <li>Invalid file descriptors to blocking syscalls <code>read()</code> and |
| <code>write()</code><p> |
| <li>Bad signal numbers passed to <code>sigaction()</code><p> |
| <li>Attempts to install signal handler for <code>SIGKILL</code> or |
| <code>SIGSTOP</code> <p> |
| </ul> |
| |
| <hr width="100%"> |
| </body> |
| </html> |
| |