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| <h3 class="section">19.3 Choosing Target Byte Order</h3> |
| |
| <p><a name="index-choosing-target-byte-order-1328"></a><a name="index-target-byte-order-1329"></a> |
| Some types of processors, such as the <acronym>MIPS</acronym>, PowerPC, and Renesas SH, |
| offer the ability to run either big-endian or little-endian byte |
| orders. Usually the executable or symbol will include a bit to |
| designate the endian-ness, and you will not need to worry about |
| which to use. However, you may still find it useful to adjust |
| <span class="sc">gdb</span>'s idea of processor endian-ness manually. |
| |
| |
| <a name="index-set-endian-1330"></a> |
| <dl><dt><code>set endian big</code><dd>Instruct <span class="sc">gdb</span> to assume the target is big-endian. |
| |
| <br><dt><code>set endian little</code><dd>Instruct <span class="sc">gdb</span> to assume the target is little-endian. |
| |
| <br><dt><code>set endian auto</code><dd>Instruct <span class="sc">gdb</span> to use the byte order associated with the |
| executable. |
| |
| <br><dt><code>show endian</code><dd>Display <span class="sc">gdb</span>'s current idea of the target byte order. |
| |
| </dl> |
| |
| <p>If the <code>set endian auto</code> mode is in effect and no executable has |
| been selected, then the endianness used is the last one chosen either |
| by one of the <code>set endian big</code> and <code>set endian little</code> |
| commands or by inferring from the last executable used. If no |
| endianness has been previously chosen, then the default for this mode |
| is inferred from the target <span class="sc">gdb</span> has been built for, and is |
| <code>little</code> if the name of the target CPU has an <code>el</code> suffix |
| and <code>big</code> otherwise. |
| |
| <p>Note that these commands merely adjust interpretation of symbolic |
| data on the host, and that they have absolutely no effect on the |
| target system. |
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