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144 lines
5.9 KiB
HTML
144 lines
5.9 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This file documents the GNU linker LD
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(SiFive Binutils 2.32.0-2020.04.1)
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version 2.32.
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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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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>MSP430 (LD)</title>
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<meta name="description" content="MSP430 (LD)">
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<meta name="keywords" content="MSP430 (LD)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="LD-Index.html#LD-Index" rel="index" title="LD Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Machine-Dependent.html#Machine-Dependent" rel="up" title="Machine Dependent">
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<link href="NDS32.html#NDS32" rel="next" title="NDS32">
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<link href="MMIX.html#MMIX" rel="prev" title="MMIX">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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blockquote.indentedblock {margin-right: 0em}
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blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
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blockquote.smallquotation {font-size: smaller}
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div.display {margin-left: 3.2em}
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div.example {margin-left: 3.2em}
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div.lisp {margin-left: 3.2em}
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div.smalldisplay {margin-left: 3.2em}
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div.smallexample {margin-left: 3.2em}
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div.smalllisp {margin-left: 3.2em}
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kbd {font-style: oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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pre.menu-comment {font-family: serif}
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pre.menu-preformatted {font-family: serif}
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pre.smalldisplay {font-family: inherit; font-size: smaller}
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pre.smallexample {font-size: smaller}
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pre.smallformat {font-family: inherit; font-size: smaller}
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pre.smalllisp {font-size: smaller}
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span.nolinebreak {white-space: nowrap}
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span.roman {font-family: initial; font-weight: normal}
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span.sansserif {font-family: sans-serif; font-weight: normal}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="MSP430"></a>
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<div class="header">
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<p>
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Next: <a href="NDS32.html#NDS32" accesskey="n" rel="next">NDS32</a>, Previous: <a href="MMIX.html#MMIX" accesskey="p" rel="prev">MMIX</a>, Up: <a href="Machine-Dependent.html#Machine-Dependent" accesskey="u" rel="up">Machine Dependent</a> [<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>
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</div>
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<hr>
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<a name="ld-and-MSP430"></a>
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<h3 class="section">4.8 <code>ld</code> and MSP430</h3>
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<p>For the MSP430 it is possible to select the MPU architecture. The flag ‘<samp>-m [mpu type]</samp>’
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will select an appropriate linker script for selected MPU type. (To get a list of known MPUs
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just pass ‘<samp>-m help</samp>’ option to the linker).
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</p>
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<a name="index-MSP430-extra-sections"></a>
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<p>The linker will recognize some extra sections which are MSP430 specific:
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</p>
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<dl compact="compact">
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<dt><code>‘<samp>.vectors</samp>’</code></dt>
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<dd><p>Defines a portion of ROM where interrupt vectors located.
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</p>
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</dd>
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<dt><code>‘<samp>.bootloader</samp>’</code></dt>
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<dd><p>Defines the bootloader portion of the ROM (if applicable). Any code
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in this section will be uploaded to the MPU.
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</p>
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</dd>
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<dt><code>‘<samp>.infomem</samp>’</code></dt>
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<dd><p>Defines an information memory section (if applicable). Any code in
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this section will be uploaded to the MPU.
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</p>
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</dd>
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<dt><code>‘<samp>.infomemnobits</samp>’</code></dt>
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<dd><p>This is the same as the ‘<samp>.infomem</samp>’ section except that any code
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in this section will not be uploaded to the MPU.
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</p>
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</dd>
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<dt><code>‘<samp>.noinit</samp>’</code></dt>
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<dd><p>Denotes a portion of RAM located above ‘<samp>.bss</samp>’ section.
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</p>
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<p>The last two sections are used by gcc.
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</p></dd>
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</dl>
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<dl compact="compact">
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<dd><a name="index-MSP430-Options"></a>
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<a name="index-_002d_002dcode_002dregion"></a>
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</dd>
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<dt><samp>--code-region=[either,lower,upper,none]</samp></dt>
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<dd><p>This will transform .text* sections to [either,lower,upper].text* sections. The
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argument passed to GCC for -mcode-region is propagated to the linker
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using this option.
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</p>
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<a name="index-_002d_002ddata_002dregion"></a>
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</dd>
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<dt><samp>--data-region=[either,lower,upper,none]</samp></dt>
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<dd><p>This will transform .data*, .bss* and .rodata* sections to
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[either,lower,upper].[data,bss,rodata]* sections. The argument passed to GCC
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for -mdata-region is propagated to the linker using this option.
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</p>
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<a name="index-_002d_002ddisable_002dsec_002dtransformation"></a>
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</dd>
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<dt><samp>--disable-sec-transformation</samp></dt>
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<dd><p>Prevent the transformation of sections as specified by the <code>--code-region</code>
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and <code>--data-region</code> options.
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This is useful if you are compiling and linking using a single call to the GCC
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wrapper, and want to compile the source files using -m[code,data]-region but
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not transform the sections for prebuilt libraries and objects.
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</p></dd>
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</dl>
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<hr>
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<div class="header">
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<p>
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Next: <a href="NDS32.html#NDS32" accesskey="n" rel="next">NDS32</a>, Previous: <a href="MMIX.html#MMIX" accesskey="p" rel="prev">MMIX</a>, Up: <a href="Machine-Dependent.html#Machine-Dependent" accesskey="u" rel="up">Machine Dependent</a> [<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>
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</div>
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</body>
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</html>
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