86 lines
3.9 KiB
HTML
86 lines
3.9 KiB
HTML
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<html lang="en">
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<head>
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<title>Input Section Example - 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="Input-Section.html#Input-Section" title="Input Section">
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<link rel="prev" href="Input-Section-Keep.html#Input-Section-Keep" title="Input Section Keep">
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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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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { font-size:smaller }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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span.roman { font-family:serif; font-weight:normal; }
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span.sansserif { font-family:sans-serif; font-weight:normal; }
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--></style>
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</head>
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<body>
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<div class="node">
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<a name="Input-Section-Example"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="Input-Section-Keep.html#Input-Section-Keep">Input Section Keep</a>,
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Up: <a rel="up" accesskey="u" href="Input-Section.html#Input-Section">Input Section</a>
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<hr>
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</div>
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<h5 class="subsubsection">3.6.4.5 Input Section Example</h5>
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<p>The following example is a complete linker script. It tells the linker
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to read all of the sections from file <samp><span class="file">all.o</span></samp> and place them at the
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start of output section ‘<samp><span class="samp">outputa</span></samp>’ which starts at location
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‘<samp><span class="samp">0x10000</span></samp>’. All of section ‘<samp><span class="samp">.input1</span></samp>’ from file <samp><span class="file">foo.o</span></samp>
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follows immediately, in the same output section. All of section
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‘<samp><span class="samp">.input2</span></samp>’ from <samp><span class="file">foo.o</span></samp> goes into output section
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‘<samp><span class="samp">outputb</span></samp>’, followed by section ‘<samp><span class="samp">.input1</span></samp>’ from <samp><span class="file">foo1.o</span></samp>.
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All of the remaining ‘<samp><span class="samp">.input1</span></samp>’ and ‘<samp><span class="samp">.input2</span></samp>’ sections from any
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files are written to output section ‘<samp><span class="samp">outputc</span></samp>’.
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<pre class="smallexample"> SECTIONS {
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outputa 0x10000 :
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{
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all.o
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foo.o (.input1)
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}
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outputb :
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{
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foo.o (.input2)
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foo1.o (.input1)
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}
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outputc :
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{
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*(.input1)
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*(.input2)
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}
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}
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</pre>
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<p>If an output section's name is the same as the input section's name
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and is representable as a C identifier, then the linker will
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automatically see <a href="PROVIDE.html#PROVIDE">PROVIDE</a> two symbols: __start_SECNAME and
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__stop_SECNAME, where SECNAME is the name of the section. These
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indicate the start address and end address of the output section
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respectively. Note: most section names are not representable as
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C identifiers because they contain a ‘<samp><span class="samp">.</span></samp>’ character.
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</body></html>
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