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+Next: <a href="Microsoft-Windows-Function-Attributes.html#Microsoft-Windows-Function-Attributes" accesskey="n" rel="next">Microsoft Windows Function Attributes</a>, Previous: <a href="MCORE-Function-Attributes.html#MCORE-Function-Attributes" accesskey="p" rel="previous">MCORE Function Attributes</a>, Up: <a href="Function-Attributes.html#Function-Attributes" accesskey="u" rel="up">Function Attributes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
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+<hr>
+<a name="MicroBlaze-Function-Attributes-1"></a>
+<h4 class="subsection">6.33.17 MicroBlaze Function Attributes</h4>
+
+<p>These function attributes are supported on MicroBlaze targets:
+</p>
+<dl compact="compact">
+<dd><a name="index-save_005fvolatiles-function-attribute_002c-MicroBlaze"></a>
+</dd>
+<dt><code>save_volatiles</code></dt>
+<dd><p>Use this attribute to indicate that the function is
+an interrupt handler.  All volatile registers (in addition to non-volatile
+registers) are saved in the function prologue.  If the function is a leaf
+function, only volatiles used by the function are saved.  A normal function
+return is generated instead of a return from interrupt.
+</p>
+<a name="index-break_005fhandler-function-attribute_002c-MicroBlaze"></a>
+<a name="index-break-handler-functions"></a>
+</dd>
+<dt><code>break_handler</code></dt>
+<dd><p>Use this attribute to indicate that
+the specified function is a break handler.  The compiler generates function
+entry and exit sequences suitable for use in an break handler when this
+attribute is present. The return from <code>break_handler</code> is done through
+the <code>rtbd</code> instead of <code>rtsd</code>.
+</p>
+<div class="smallexample">
+<pre class="smallexample">void f () __attribute__ ((break_handler));
+</pre></div>
+
+<a name="index-interrupt_005fhandler-function-attribute_002c-MicroBlaze"></a>
+<a name="index-fast_005finterrupt-function-attribute_002c-MicroBlaze"></a>
+</dd>
+<dt><code>interrupt_handler</code></dt>
+<dt><code>fast_interrupt</code></dt>
+<dd><p>These attributes indicate that the specified function is an interrupt
+handler.  Use the <code>fast_interrupt</code> attribute to indicate handlers
+used in low-latency interrupt mode, and <code>interrupt_handler</code> for
+interrupts that do not use low-latency handlers.  In both cases, GCC
+emits appropriate prologue code and generates a return from the handler
+using <code>rtid</code> instead of <code>rtsd</code>.
+</p></dd>
+</dl>
+
+
+
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