77 lines
4.7 KiB
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77 lines
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<title>MIPS Features - Debugging with GDB</title>
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<a name="MIPS-Features"></a>
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Next: <a rel="next" accesskey="n" href="M68K-Features.html#M68K-Features">M68K Features</a>,
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Previous: <a rel="previous" accesskey="p" href="MicroBlaze-Features.html#MicroBlaze-Features">MicroBlaze Features</a>,
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Up: <a rel="up" accesskey="u" href="Standard-Target-Features.html#Standard-Target-Features">Standard Target Features</a>
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<h4 class="subsection">G.5.6 <acronym>MIPS</acronym> Features</h4>
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<p><a name="index-target-descriptions_002c-_0040acronym_007bMIPS_007d-features-3663"></a>
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The ‘<samp><span class="samp">org.gnu.gdb.mips.cpu</span></samp>’ feature is required for <acronym>MIPS</acronym> targets.
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It should contain registers ‘<samp><span class="samp">r0</span></samp>’ through ‘<samp><span class="samp">r31</span></samp>’, ‘<samp><span class="samp">lo</span></samp>’,
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‘<samp><span class="samp">hi</span></samp>’, and ‘<samp><span class="samp">pc</span></samp>’. They may be 32-bit or 64-bit depending
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on the target.
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<p>The ‘<samp><span class="samp">org.gnu.gdb.mips.cp0</span></samp>’ feature is also required. It should
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contain at least the ‘<samp><span class="samp">status</span></samp>’, ‘<samp><span class="samp">badvaddr</span></samp>’, and ‘<samp><span class="samp">cause</span></samp>’
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registers. They may be 32-bit or 64-bit depending on the target.
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<p>The ‘<samp><span class="samp">org.gnu.gdb.mips.fpu</span></samp>’ feature is currently required, though
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it may be optional in a future version of <span class="sc">gdb</span>. It should
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contain registers ‘<samp><span class="samp">f0</span></samp>’ through ‘<samp><span class="samp">f31</span></samp>’, ‘<samp><span class="samp">fcsr</span></samp>’, and
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‘<samp><span class="samp">fir</span></samp>’. They may be 32-bit or 64-bit depending on the target.
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<p>The ‘<samp><span class="samp">org.gnu.gdb.mips.dsp</span></samp>’ feature is optional. It should
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contain registers ‘<samp><span class="samp">hi1</span></samp>’ through ‘<samp><span class="samp">hi3</span></samp>’, ‘<samp><span class="samp">lo1</span></samp>’ through
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‘<samp><span class="samp">lo3</span></samp>’, and ‘<samp><span class="samp">dspctl</span></samp>’. The ‘<samp><span class="samp">dspctl</span></samp>’ register should
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be 32-bit and the rest may be 32-bit or 64-bit depending on the target.
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<p>The ‘<samp><span class="samp">org.gnu.gdb.mips.linux</span></samp>’ feature is optional. It should
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contain a single register, ‘<samp><span class="samp">restart</span></samp>’, which is used by the
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Linux kernel to control restartable syscalls.
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