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| <title>STABS: Overview</title> |
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| Next: <a href="Program-Structure.html#Program-Structure" accesskey="n" rel="next">Program Structure</a>, Previous: <a href="index.html#Top" accesskey="p" rel="prev">Top</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Symbol-Types-Index.html#Symbol-Types-Index" title="Index" rel="index">Index</a>]</p> |
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| <a name="Overview-of-Stabs"></a> |
| <h2 class="chapter">1 Overview of Stabs</h2> |
| |
| <p><em>Stabs</em> refers to a format for information that describes a program |
| to a debugger. This format was apparently invented by |
| Peter Kessler at |
| the University of California at Berkeley, for the <code>pdx</code> Pascal |
| debugger; the format has spread widely since then. |
| </p> |
| <p>This document is one of the few published sources of documentation on |
| stabs. It is believed to be comprehensive for stabs used by C. The |
| lists of symbol descriptors (see <a href="Symbol-Descriptors.html#Symbol-Descriptors">Symbol Descriptors</a>) and type |
| descriptors (see <a href="Type-Descriptors.html#Type-Descriptors">Type Descriptors</a>) are believed to be completely |
| comprehensive. Stabs for COBOL-specific features and for variant |
| records (used by Pascal and Modula-2) are poorly documented here. |
| </p> |
| |
| <p>Other sources of information on stabs are <cite>Dbx and Dbxtool |
| Interfaces</cite>, 2nd edition, by Sun, 1988, and <cite>AIX Version 3.2 Files |
| Reference</cite>, Fourth Edition, September 1992, "dbx Stabstring Grammar" in |
| the a.out section, page 2-31. This document is believed to incorporate |
| the information from those two sources except where it explicitly directs |
| you to them for more information. |
| </p> |
| <table class="menu" border="0" cellspacing="0"> |
| <tr><td align="left" valign="top">• <a href="Flow.html#Flow" accesskey="1">Flow</a>:</td><td> </td><td align="left" valign="top">Overview of debugging information flow |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Stabs-Format.html#Stabs-Format" accesskey="2">Stabs Format</a>:</td><td> </td><td align="left" valign="top">Overview of stab format |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="String-Field.html#String-Field" accesskey="3">String Field</a>:</td><td> </td><td align="left" valign="top">The string field |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="C-Example.html#C-Example" accesskey="4">C Example</a>:</td><td> </td><td align="left" valign="top">A simple example in C source |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Assembly-Code.html#Assembly-Code" accesskey="5">Assembly Code</a>:</td><td> </td><td align="left" valign="top">The simple example at the assembly level |
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