131 lines
5.3 KiB
HTML
131 lines
5.3 KiB
HTML
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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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<!-- Copyright (C) 1988-2016 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 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Funding Free Software", the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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"GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using the GNU Compiler Collection (GCC): Solaris 2 Options</title>
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<meta name="description" content="Using the GNU Compiler Collection (GCC): Solaris 2 Options">
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<meta name="keywords" content="Using the GNU Compiler Collection (GCC): Solaris 2 Options">
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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="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Submodel-Options.html#Submodel-Options" rel="up" title="Submodel Options">
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<link href="SPARC-Options.html#SPARC-Options" rel="next" title="SPARC Options">
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<link href="SH-Options.html#SH-Options" rel="prev" title="SH Options">
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<style type="text/css">
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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" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="Solaris-2-Options"></a>
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<div class="header">
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<p>
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Next: <a href="SPARC-Options.html#SPARC-Options" accesskey="n" rel="next">SPARC Options</a>, Previous: <a href="SH-Options.html#SH-Options" accesskey="p" rel="prev">SH Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Solaris-2-Options-1"></a>
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<h4 class="subsection">3.18.43 Solaris 2 Options</h4>
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<a name="index-Solaris-2-options"></a>
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<p>These ‘<samp>-m</samp>’ options are supported on Solaris 2:
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</p>
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<dl compact="compact">
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<dt><code>-mclear-hwcap</code></dt>
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<dd><a name="index-mclear_002dhwcap"></a>
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<p><samp>-mclear-hwcap</samp> tells the compiler to remove the hardware
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capabilities generated by the Solaris assembler. This is only necessary
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when object files use ISA extensions not supported by the current
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machine, but check at runtime whether or not to use them.
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</p>
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</dd>
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<dt><code>-mimpure-text</code></dt>
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<dd><a name="index-mimpure_002dtext"></a>
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<p><samp>-mimpure-text</samp>, used in addition to <samp>-shared</samp>, tells
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the compiler to not pass <samp>-z text</samp> to the linker when linking a
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shared object. Using this option, you can link position-dependent
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code into a shared object.
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</p>
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<p><samp>-mimpure-text</samp> suppresses the “relocations remain against
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allocatable but non-writable sections” linker error message.
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However, the necessary relocations trigger copy-on-write, and the
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shared object is not actually shared across processes. Instead of
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using <samp>-mimpure-text</samp>, you should compile all source code with
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<samp>-fpic</samp> or <samp>-fPIC</samp>.
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</p>
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</dd>
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</dl>
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<p>These switches are supported in addition to the above on Solaris 2:
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</p>
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<dl compact="compact">
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<dt><code>-pthreads</code></dt>
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<dd><a name="index-pthreads"></a>
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<p>Add support for multithreading using the POSIX threads library. This
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option sets flags for both the preprocessor and linker. This option does
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not affect the thread safety of object code produced by the compiler or
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that of libraries supplied with it.
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</p>
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</dd>
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<dt><code>-pthread</code></dt>
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<dd><a name="index-pthread-1"></a>
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<p>This is a synonym for <samp>-pthreads</samp>.
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</p></dd>
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</dl>
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</body>
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</html>
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