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  1. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

  2. <html>

  3. <!-- This file documents the GNU linker LD

  4. (GNU Arm Embedded Toolchain 10-2020-q4-major)

  5. version 2.35.1.

  6. 

  7. Copyright (C) 1991-2020 Free Software Foundation, Inc.

  8. 

  9. Permission is granted to copy, distribute and/or modify this document

  10. under the terms of the GNU Free Documentation License, Version 1.3

  11. or any later version published by the Free Software Foundation;

  12. with no Invariant Sections, with no Front-Cover Texts, and with no

  13. Back-Cover Texts.  A copy of the license is included in the

  14. section entitled "GNU Free Documentation License". -->

  15. <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->

  16. <head>

  17. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

  18. <title>MIPS (LD)</title>

  19. 

  20. <meta name="description" content="MIPS (LD)">

  21. <meta name="keywords" content="MIPS (LD)">

  22. <meta name="resource-type" content="document">

  23. <meta name="distribution" content="global">

  24. <meta name="Generator" content="makeinfo">

  25. <link href="index.html#Top" rel="start" title="Top">

  26. <link href="LD-Index.html#LD-Index" rel="index" title="LD Index">

  27. <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">

  28. <link href="Machine-Dependent.html#Machine-Dependent" rel="up" title="Machine Dependent">

  29. <link href="MMIX.html#MMIX" rel="next" title="MMIX">

  30. <link href="M68K.html#M68K" rel="prev" title="M68K">

  31. <style type="text/css">

  32. <!--

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  55. ul.no-bullet {list-style: none}

  56. -->

  57. </style>

  58. 

  59. 

  60. </head>

  61. 

  62. <body lang="en">

  63. <a name="MIPS"></a>

  64. <div class="header">

  65. <p>

  66. Next: <a href="MMIX.html#MMIX" accesskey="n" rel="next">MMIX</a>, Previous: <a href="M68K.html#M68K" accesskey="p" rel="prev">M68K</a>, Up: <a href="Machine-Dependent.html#Machine-Dependent" accesskey="u" rel="up">Machine Dependent</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="LD-Index.html#LD-Index" title="Index" rel="index">Index</a>]</p>

  67. </div>

  68. <hr>

  69. <a name="ld-and-the-MIPS-family"></a>

  70. <h3 class="section">4.6 <code>ld</code> and the MIPS family</h3>

  71. 

  72. <a name="index-MIPS-microMIPS-instruction-choice-selection"></a>

  73. <a name="index-_002d_002dinsn32-1"></a>

  74. <a name="index-_002d_002dno_002dinsn32-1"></a>

  75. <p>The &lsquo;<samp>--insn32</samp>&rsquo; and &lsquo;<samp>--no-insn32</samp>&rsquo; options control the choice of

  76. microMIPS instructions used in code generated by the linker, such as that

  77. in the PLT or lazy binding stubs, or in relaxation.  If &lsquo;<samp>--insn32</samp>&rsquo; is

  78. used, then the linker only uses 32-bit instruction encodings.  By default

  79. or if &lsquo;<samp>--no-insn32</samp>&rsquo; is used, all instruction encodings are used,

  80. including 16-bit ones where possible.

  81. </p>

  82. <a name="index-MIPS-branch-relocation-check-control"></a>

  83. <a name="index-_002d_002dignore_002dbranch_002disa-1"></a>

  84. <a name="index-_002d_002dno_002dignore_002dbranch_002disa-1"></a>

  85. <p>The &lsquo;<samp>--ignore-branch-isa</samp>&rsquo; and &lsquo;<samp>--no-ignore-branch-isa</samp>&rsquo; options

  86. control branch relocation checks for invalid ISA mode transitions.  If

  87. &lsquo;<samp>--ignore-branch-isa</samp>&rsquo; is used, then the linker accepts any branch

  88. relocations and any ISA mode transition required is lost in relocation

  89. calculation, except for some cases of <code>BAL</code> instructions which meet

  90. relaxation conditions and are converted to equivalent <code>JALX</code>

  91. instructions as the associated relocation is calculated.  By default

  92. or if &lsquo;<samp>--no-ignore-branch-isa</samp>&rsquo; is used a check is made causing

  93. the loss of an ISA mode transition to produce an error.

  94. </p>

  95. 

  96. 

  97. 

  98. 

  99. 

  100. </body>

  101. </html>