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- <a name="Enforcing-aligned-data"></a>
- <h4 class="subsection">9.44.2 Enforcing aligned data</h4>
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- <a name="index-data-alignment-on-SPARC"></a>
- <a name="index-SPARC-data-alignment"></a>
- <p>SPARC GAS normally permits data to be misaligned. For example, it
- permits the <code>.long</code> pseudo-op to be used on a byte boundary.
- However, the native SunOS assemblers issue an error when they see
- misaligned data.
- </p>
- <a name="index-_002d_002denforce_002daligned_002ddata"></a>
- <p>You can use the <code>--enforce-aligned-data</code> option to make SPARC GAS
- also issue an error about misaligned data, just as the SunOS
- assemblers do.
- </p>
- <p>The <code>--enforce-aligned-data</code> option is not the default because gcc
- issues misaligned data pseudo-ops when it initializes certain packed
- data structures (structures defined using the <code>packed</code> attribute).
- You may have to assemble with GAS in order to initialize packed data
- structures in your own code.
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