108 lines
4.8 KiB
HTML
108 lines
4.8 KiB
HTML
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<title>Using the GNU Compiler Collection (GCC): m68k Function Attributes</title>
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Function-Attributes.html#Function-Attributes" rel="up" title="Function Attributes">
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Next: <a href="MCORE-Function-Attributes.html#MCORE-Function-Attributes" accesskey="n" rel="next">MCORE Function Attributes</a>, Previous: <a href="M32R_002fD-Function-Attributes.html#M32R_002fD-Function-Attributes" accesskey="p" rel="prev">M32R/D Function Attributes</a>, Up: <a href="Function-Attributes.html#Function-Attributes" accesskey="u" rel="up">Function Attributes</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<a name="m68k-Function-Attributes-1"></a>
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<h4 class="subsection">6.31.13 m68k Function Attributes</h4>
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<p>These function attributes are supported by the m68k back end:
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</p>
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<dl compact="compact">
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<dt><code>interrupt</code></dt>
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<dt><code>interrupt_handler</code></dt>
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<dd><a name="index-interrupt-function-attribute_002c-m68k"></a>
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<a name="index-interrupt_005fhandler-function-attribute_002c-m68k"></a>
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<p>Use this attribute to
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indicate that the specified function is an interrupt handler. The compiler
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generates function entry and exit sequences suitable for use in an
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interrupt handler when this attribute is present. Either name may be used.
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</p>
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</dd>
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<dt><code>interrupt_thread</code></dt>
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<dd><a name="index-interrupt_005fthread-function-attribute_002c-fido"></a>
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<p>Use this attribute on fido, a subarchitecture of the m68k, to indicate
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that the specified function is an interrupt handler that is designed
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to run as a thread. The compiler omits generate prologue/epilogue
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sequences and replaces the return instruction with a <code>sleep</code>
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instruction. This attribute is available only on fido.
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</p></dd>
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</dl>
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