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<h4 class="subsection">9.24.3 Directives for debugging information</h4>

<p><a name="index-MIPS-debugging-directives-1270"></a><span class="sc">mips</span> <span class="sc">ecoff</span> <code>as</code> supports several directives used for
generating debugging information which are not support by traditional <span class="sc">mips</span>
assemblers.  These are <code>.def</code>, <code>.endef</code>, <code>.dim</code>, <code>.file</code>,
<code>.scl</code>, <code>.size</code>, <code>.tag</code>, <code>.type</code>, <code>.val</code>,
<code>.stabd</code>, <code>.stabn</code>, and <code>.stabs</code>.  The debugging information
generated by the three <code>.stab</code> directives can only be read by <span class="sc">gdb</span>,
not by traditional <span class="sc">mips</span> debuggers (this enhancement is required to fully
support C++ debugging).  These directives are primarily used by compilers, not
assembly language programmers!

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