69 lines
3.8 KiB
HTML
69 lines
3.8 KiB
HTML
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<html lang="en">
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<head>
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<title>MIPS - Untitled</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Untitled">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Machine-Dependent.html#Machine-Dependent" title="Machine Dependent">
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<link rel="prev" href="M68K.html#M68K" title="M68K">
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<link rel="next" href="MMIX.html#MMIX" title="MMIX">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU linker LD
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(GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10))
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version 2.33.1.
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Copyright (C) 1991-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.-->
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</head>
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<body>
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<div class="node">
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<a name="MIPS"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="MMIX.html#MMIX">MMIX</a>,
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Previous: <a rel="previous" accesskey="p" href="M68K.html#M68K">M68K</a>,
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Up: <a rel="up" accesskey="u" href="Machine-Dependent.html#Machine-Dependent">Machine Dependent</a>
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<hr>
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</div>
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<h3 class="section">4.6 <samp><span class="command">ld</span></samp> and the MIPS family</h3>
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<p><a name="index-MIPS-microMIPS-instruction-choice-selection-688"></a><a name="index-g_t_002d_002dinsn32-689"></a><a name="index-g_t_002d_002dno_002dinsn32-690"></a>The ‘<samp><span class="samp">--insn32</span></samp>’ and ‘<samp><span class="samp">--no-insn32</span></samp>’ options control the choice of
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microMIPS instructions used in code generated by the linker, such as that
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in the PLT or lazy binding stubs, or in relaxation. If ‘<samp><span class="samp">--insn32</span></samp>’ is
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used, then the linker only uses 32-bit instruction encodings. By default
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or if ‘<samp><span class="samp">--no-insn32</span></samp>’ is used, all instruction encodings are used,
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including 16-bit ones where possible.
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<p><a name="index-MIPS-branch-relocation-check-control-691"></a><a name="index-g_t_002d_002dignore_002dbranch_002disa-692"></a><a name="index-g_t_002d_002dno_002dignore_002dbranch_002disa-693"></a>The ‘<samp><span class="samp">--ignore-branch-isa</span></samp>’ and ‘<samp><span class="samp">--no-ignore-branch-isa</span></samp>’ options
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control branch relocation checks for invalid ISA mode transitions. If
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‘<samp><span class="samp">--ignore-branch-isa</span></samp>’ is used, then the linker accepts any branch
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relocations and any ISA mode transition required is lost in relocation
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calculation, except for some cases of <code>BAL</code> instructions which meet
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relaxation conditions and are converted to equivalent <code>JALX</code>
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instructions as the associated relocation is calculated. By default
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or if ‘<samp><span class="samp">--no-ignore-branch-isa</span></samp>’ is used a check is made causing
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the loss of an ISA mode transition to produce an error.
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</body></html>
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