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1543 lines
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1543 lines
77 KiB
HTML
4 years ago
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<html lang="en">
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<head>
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<title>Host/Target specific installation notes for GCC</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Host/Target specific installation notes for GCC">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="top" href="#Top">
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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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Copyright (C) 1988-2015 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 no
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Invariant Sections, the Front-Cover texts being (a) (see below), and
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with the Back-Cover Texts being (b) (see below). A copy of the
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license is included in the section entitled "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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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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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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<h1 class="settitle">Host/Target specific installation notes for GCC</h1>
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<a name="index-Specific-1"></a><a name="index-Specific-installation-notes-2"></a><a name="index-Target-specific-installation-3"></a><a name="index-Host-specific-installation-4"></a><a name="index-Target-specific-installation-notes-5"></a>
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Please read this document carefully <em>before</em> installing the
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GNU Compiler Collection on your machine.
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<p>Note that this list of install notes is <em>not</em> a list of supported
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hosts or targets. Not all supported hosts and targets are listed
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here, only the ones that require host-specific or target-specific
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information have to.
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<ul>
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<li><a href="#aarch64-x-x">aarch64*-*-*</a>
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<li><a href="#alpha-x-x">alpha*-*-*</a>
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<li><a href="#alpha-dec-osf51">alpha*-dec-osf5.1</a>
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<li><a href="#amd64-x-solaris210">amd64-*-solaris2.10</a>
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<li><a href="#arm-x-eabi">arm-*-eabi</a>
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<li><a href="#avr">avr</a>
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<li><a href="#bfin">Blackfin</a>
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<li><a href="#dos">DOS</a>
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<li><a href="#x-x-freebsd">*-*-freebsd*</a>
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<li><a href="#h8300-hms">h8300-hms</a>
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<li><a href="#hppa-hp-hpux">hppa*-hp-hpux*</a>
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<li><a href="#hppa-hp-hpux10">hppa*-hp-hpux10</a>
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<li><a href="#hppa-hp-hpux11">hppa*-hp-hpux11</a>
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<li><a href="#x-x-linux-gnu">*-*-linux-gnu</a>
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<li><a href="#ix86-x-linux">i?86-*-linux*</a>
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<li><a href="#ix86-x-solaris210">i?86-*-solaris2.10</a>
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<li><a href="#ia64-x-linux">ia64-*-linux</a>
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<li><a href="#ia64-x-hpux">ia64-*-hpux*</a>
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<li><a href="#x-ibm-aix">*-ibm-aix*</a>
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<li><a href="#iq2000-x-elf">iq2000-*-elf</a>
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<li><a href="#lm32-x-elf">lm32-*-elf</a>
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<li><a href="#lm32-x-uclinux">lm32-*-uclinux</a>
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<li><a href="#m32c-x-elf">m32c-*-elf</a>
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<li><a href="#m32r-x-elf">m32r-*-elf</a>
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<li><a href="#m68k-x-x">m68k-*-*</a>
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<li><a href="#m68k-uclinux">m68k-uclinux</a>
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<li><a href="#mep-x-elf">mep-*-elf</a>
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<li><a href="#microblaze-x-elf">microblaze-*-elf</a>
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<li><a href="#mips-x-x">mips-*-*</a>
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<li><a href="#mips-sgi-irix5">mips-sgi-irix5</a>
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<li><a href="#mips-sgi-irix6">mips-sgi-irix6</a>
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<li><a href="#nds32le-x-elf">nds32le-*-elf</a>
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<li><a href="#nds32be-x-elf">nds32be-*-elf</a>
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<li><a href="#nvptx-x-none">nvptx-*-none</a>
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<li><a href="#powerpc-x-x">powerpc*-*-*</a>
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<li><a href="#powerpc-x-darwin">powerpc-*-darwin*</a>
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<li><a href="#powerpc-x-elf">powerpc-*-elf</a>
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<li><a href="#powerpc-x-linux-gnu">powerpc*-*-linux-gnu*</a>
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<li><a href="#powerpc-x-netbsd">powerpc-*-netbsd*</a>
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<li><a href="#powerpc-x-eabisim">powerpc-*-eabisim</a>
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<li><a href="#powerpc-x-eabi">powerpc-*-eabi</a>
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<li><a href="#powerpcle-x-elf">powerpcle-*-elf</a>
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<li><a href="#powerpcle-x-eabisim">powerpcle-*-eabisim</a>
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<li><a href="#powerpcle-x-eabi">powerpcle-*-eabi</a>
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<li><a href="#s390-x-linux">s390-*-linux*</a>
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<li><a href="#s390x-x-linux">s390x-*-linux*</a>
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<li><a href="#s390x-ibm-tpf">s390x-ibm-tpf*</a>
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<li><a href="#x-x-solaris2">*-*-solaris2*</a>
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<li><a href="#sparc-x-x">sparc*-*-*</a>
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<li><a href="#sparc-sun-solaris2">sparc-sun-solaris2*</a>
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<li><a href="#sparc-sun-solaris210">sparc-sun-solaris2.10</a>
|
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<li><a href="#sparc-x-linux">sparc-*-linux*</a>
|
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<li><a href="#sparc64-x-solaris2">sparc64-*-solaris2*</a>
|
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<li><a href="#sparcv9-x-solaris2">sparcv9-*-solaris2*</a>
|
||
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<li><a href="#c6x-x-x">c6x-*-*</a>
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<li><a href="#tilegx-x-linux">tilegx-*-linux*</a>
|
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<li><a href="#tilegxbe-x-linux">tilegxbe-*-linux*</a>
|
||
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<li><a href="#tilepro-x-linux">tilepro-*-linux*</a>
|
||
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<li><a href="#visium-x-elf">visium-*-elf</a>
|
||
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<li><a href="#x-x-vxworks">*-*-vxworks*</a>
|
||
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<li><a href="#x86-64-x-x">x86_64-*-*</a> amd64-*-*
|
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<li><a href="#x86-64-x-solaris210">x86_64-*-solaris2.1[0-9]*</a>
|
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<li><a href="#xtensa-x-elf">xtensa*-*-elf</a>
|
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<li><a href="#xtensa-x-linux">xtensa*-*-linux*</a>
|
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<li><a href="#windows">Microsoft Windows</a>
|
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<li><a href="#x-x-cygwin">*-*-cygwin</a>
|
||
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<li><a href="#x-x-interix">*-*-interix</a>
|
||
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<li><a href="#x-x-mingw32">*-*-mingw32</a>
|
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<li><a href="#os2">OS/2</a>
|
||
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<li><a href="#older">Older systems</a>
|
||
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</ul>
|
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|
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<ul>
|
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<li><a href="#elf">all ELF targets</a> (SVR4, Solaris 2, etc.)
|
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</ul>
|
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|
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<p><!-- -------- host/target specific issues start here ---------------- -->
|
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<hr /><a name="aarch64_002dx_002dx"></a>
|
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<h3 class="heading"><a name="TOC0"></a>aarch64*-*-*</h3>
|
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<p>Binutils pre 2.24 does not have support for selecting <samp><span class="option">-mabi</span></samp> and
|
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does not support ILP32. If it is used to build GCC 4.9 or later, GCC will
|
||
|
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not support option <samp><span class="option">-mabi=ilp32</span></samp>.
|
||
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||
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<p>To enable a workaround for the Cortex-A53 erratum number 835769 by default
|
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(for all CPUs regardless of -mcpu option given) at configure time use the
|
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<samp><span class="option">--enable-fix-cortex-a53-835769</span></samp> option. This will enable the fix by
|
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default and can be explicitly disabled during compilation by passing the
|
||
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<samp><span class="option">-mno-fix-cortex-a53-835769</span></samp> option. Conversely,
|
||
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<samp><span class="option">--disable-fix-cortex-a53-835769</span></samp> will disable the workaround by
|
||
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default. The workaround is disabled by default if neither of
|
||
|
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<samp><span class="option">--enable-fix-cortex-a53-835769</span></samp> or
|
||
|
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<samp><span class="option">--disable-fix-cortex-a53-835769</span></samp> is given at configure time.
|
||
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|
||
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<p>To enable a workaround for the Cortex-A53 erratum number 843419 by default
|
||
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(for all CPUs regardless of -mcpu option given) at configure time use the
|
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<samp><span class="option">--enable-fix-cortex-a53-843419</span></samp> option. This workaround is applied at
|
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link time. Enabling the workaround will cause GCC to pass the relevant option
|
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to the linker. It can be explicitly disabled during compilation by passing the
|
||
|
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<samp><span class="option">-mno-fix-cortex-a53-843419</span></samp> option. Conversely,
|
||
|
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<samp><span class="option">--disable-fix-cortex-a53-843419</span></samp> will disable the workaround by default.
|
||
|
|
The workaround is disabled by default if neither of
|
||
|
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<samp><span class="option">--enable-fix-cortex-a53-843419</span></samp> or
|
||
|
|
<samp><span class="option">--disable-fix-cortex-a53-843419</span></samp> is given at configure time.
|
||
|
|
|
||
|
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<p><hr /><a name="alpha_002dx_002dx"></a>
|
||
|
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|
||
|
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<h3 class="heading"><a name="TOC1"></a>alpha*-*-*</h3>
|
||
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|
||
|
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<p>This section contains general configuration information for all
|
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alpha-based platforms using ELF (in particular, ignore this section for
|
||
|
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DEC OSF/1, Digital UNIX and Tru64 UNIX). In addition to reading this
|
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section, please read all other sections that match your target.
|
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|
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<p>We require binutils 2.11.2 or newer.
|
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Previous binutils releases had a number of problems with DWARF 2
|
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|
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debugging information, not the least of which is incorrect linking of
|
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shared libraries.
|
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<p><hr /><a name="alpha_002ddec_002dosf51"></a>
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<h3 class="heading"><a name="TOC2"></a>alpha*-dec-osf5.1</h3>
|
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<p>Systems using processors that implement the DEC Alpha architecture and
|
||
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are running the DEC/Compaq/HP Unix (DEC OSF/1, Digital UNIX, or Compaq/HP
|
||
|
|
Tru64 UNIX) operating system, for example the DEC Alpha AXP systems.
|
||
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||
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<p>Support for Tru64 UNIX V5.1 has been removed in GCC 4.8. As of GCC 4.6,
|
||
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support for Tru64 UNIX V4.0 and V5.0 has been removed. As of GCC 3.2,
|
||
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versions before <code>alpha*-dec-osf4</code> are no longer supported. (These
|
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are the versions which identify themselves as DEC OSF/1.)
|
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<p><hr /><a name="amd64_002dx_002dsolaris210"></a>
|
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|
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<h3 class="heading"><a name="TOC3"></a>amd64-*-solaris2.1[0-9]*</h3>
|
||
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|
|
||
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<p>This is a synonym for ‘<samp><span class="samp">x86_64-*-solaris2.1[0-9]*</span></samp>’.
|
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||
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<p><hr /><a name="arc_002dx_002delf32"></a>
|
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||
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<h3 class="heading"><a name="TOC4"></a>arc-*-elf32</h3>
|
||
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|
||
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<p>Use ‘<samp><span class="samp">configure --target=arc-elf32 --with-cpu=</span><var>cpu</var><span class="samp"> --enable-languages="c,c++"</span></samp>’
|
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|
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to configure GCC, with <var>cpu</var> being one of ‘<samp><span class="samp">arc600</span></samp>’, ‘<samp><span class="samp">arc601</span></samp>’,
|
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or ‘<samp><span class="samp">arc700</span></samp>’.
|
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<p><hr /><a name="arc_002dlinux_002duclibc"></a>
|
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|
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<h3 class="heading"><a name="TOC5"></a>arc-linux-uclibc</h3>
|
||
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|
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<p>Use ‘<samp><span class="samp">configure --target=arc-linux-uclibc --with-cpu=arc700 --enable-languages="c,c++"</span></samp>’ to configure GCC.
|
||
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|
||
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<p><hr /><a name="arm_002dx_002deabi"></a>
|
||
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|
||
|
|
<h3 class="heading"><a name="TOC6"></a>arm-*-eabi</h3>
|
||
|
|
|
||
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<p>ARM-family processors. Subtargets that use the ELF object format
|
||
|
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require GNU binutils 2.13 or newer. Such subtargets include:
|
||
|
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<code>arm-*-netbsdelf</code>, <code>arm-*-*linux-*</code>
|
||
|
|
and <code>arm-*-rtemseabi</code>.
|
||
|
|
|
||
|
|
<p><hr /><a name="avr"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC7"></a>avr</h3>
|
||
|
|
|
||
|
|
<p>ATMEL AVR-family micro controllers. These are used in embedded
|
||
|
|
applications. There are no standard Unix configurations.
|
||
|
|
See “AVR Options” in the main manual
|
||
|
|
for the list of supported MCU types.
|
||
|
|
|
||
|
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<p>Use ‘<samp><span class="samp">configure --target=avr --enable-languages="c"</span></samp>’ to configure GCC.
|
||
|
|
|
||
|
|
<p>Further installation notes and other useful information about AVR tools
|
||
|
|
can also be obtained from:
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li><a href="http://www.nongnu.org/avr/">http://www.nongnu.org/avr/</a>
|
||
|
|
<li><a href="http://www.amelek.gda.pl/avr/">http://www.amelek.gda.pl/avr/</a>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<p>We <em>strongly</em> recommend using binutils 2.13 or newer.
|
||
|
|
|
||
|
|
<p>The following error:
|
||
|
|
<pre class="smallexample"> Error: register required
|
||
|
|
</pre>
|
||
|
|
<p>indicates that you should upgrade to a newer version of the binutils.
|
||
|
|
|
||
|
|
<p><hr /><a name="bfin"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC8"></a>Blackfin</h3>
|
||
|
|
|
||
|
|
<p>The Blackfin processor, an Analog Devices DSP.
|
||
|
|
See “Blackfin Options” in the main manual
|
||
|
|
|
||
|
|
<p>More information, and a version of binutils with support for this processor,
|
||
|
|
is available at <a href="http://blackfin.uclinux.org">http://blackfin.uclinux.org</a>
|
||
|
|
|
||
|
|
<p><hr /><a name="cr16"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC9"></a>CR16</h3>
|
||
|
|
|
||
|
|
<p>The CR16 CompactRISC architecture is a 16-bit architecture. This
|
||
|
|
architecture is used in embedded applications.
|
||
|
|
|
||
|
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<p>See “CR16 Options” in the main manual for a list of CR16-specific options.
|
||
|
|
|
||
|
|
<p>Use ‘<samp><span class="samp">configure --target=cr16-elf --enable-languages=c,c++</span></samp>’ to configure
|
||
|
|
GCC for building a CR16 elf cross-compiler.
|
||
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|
|
||
|
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<p>Use ‘<samp><span class="samp">configure --target=cr16-uclinux --enable-languages=c,c++</span></samp>’ to
|
||
|
|
configure GCC for building a CR16 uclinux cross-compiler.
|
||
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|
|
||
|
|
<p><hr /><a name="cris"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC10"></a>CRIS</h3>
|
||
|
|
|
||
|
|
<p>CRIS is the CPU architecture in Axis Communications ETRAX system-on-a-chip
|
||
|
|
series. These are used in embedded applications.
|
||
|
|
|
||
|
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<p>See “CRIS Options” in the main manual
|
||
|
|
for a list of CRIS-specific options.
|
||
|
|
|
||
|
|
<p>There are a few different CRIS targets:
|
||
|
|
<dl>
|
||
|
|
<dt><code>cris-axis-elf</code><dd>Mainly for monolithic embedded systems. Includes a multilib for the
|
||
|
|
‘<samp><span class="samp">v10</span></samp>’ core used in ‘<samp><span class="samp">ETRAX 100 LX</span></samp>’.
|
||
|
|
<br><dt><code>cris-axis-linux-gnu</code><dd>A GNU/Linux port for the CRIS architecture, currently targeting
|
||
|
|
‘<samp><span class="samp">ETRAX 100 LX</span></samp>’ by default.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>For <code>cris-axis-elf</code> you need binutils 2.11
|
||
|
|
or newer. For <code>cris-axis-linux-gnu</code> you need binutils 2.12 or newer.
|
||
|
|
|
||
|
|
<p>Pre-packaged tools can be obtained from
|
||
|
|
<a href="ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/">ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/</a>. More
|
||
|
|
information about this platform is available at
|
||
|
|
<a href="http://developer.axis.com/">http://developer.axis.com/</a>.
|
||
|
|
|
||
|
|
<p><hr /><a name="dos"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC11"></a>DOS</h3>
|
||
|
|
|
||
|
|
<p>Please have a look at the <a href="binaries.html">binaries page</a>.
|
||
|
|
|
||
|
|
<p>You cannot install GCC by itself on MSDOS; it will not compile under
|
||
|
|
any MSDOS compiler except itself. You need to get the complete
|
||
|
|
compilation package DJGPP, which includes binaries as well as sources,
|
||
|
|
and includes all the necessary compilation tools and libraries.
|
||
|
|
|
||
|
|
<p><hr /><a name="epiphany_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC12"></a>epiphany-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Adapteva Epiphany.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="x_002dx_002dfreebsd"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC13"></a>*-*-freebsd*</h3>
|
||
|
|
|
||
|
|
<p>Support for FreeBSD 1 was discontinued in GCC 3.2. Support for
|
||
|
|
FreeBSD 2 (and any mutant a.out variants of FreeBSD 3) was
|
||
|
|
discontinued in GCC 4.0.
|
||
|
|
|
||
|
|
<p>In order to better utilize FreeBSD base system functionality and match
|
||
|
|
the configuration of the system compiler, GCC 4.5 and above as well as
|
||
|
|
GCC 4.4 past 2010-06-20 leverage SSP support in libc (which is present
|
||
|
|
on FreeBSD 7 or later) and the use of <code>__cxa_atexit</code> by default
|
||
|
|
(on FreeBSD 6 or later). The use of <code>dl_iterate_phdr</code> inside
|
||
|
|
<samp><span class="file">libgcc_s.so.1</span></samp> and boehm-gc (on FreeBSD 7 or later) is enabled
|
||
|
|
by GCC 4.5 and above.
|
||
|
|
|
||
|
|
<p>We support FreeBSD using the ELF file format with DWARF 2 debugging
|
||
|
|
for all CPU architectures. You may use <samp><span class="option">-gstabs</span></samp> instead of
|
||
|
|
<samp><span class="option">-g</span></samp>, if you really want the old debugging format. There are
|
||
|
|
no known issues with mixing object files and libraries with different
|
||
|
|
debugging formats. Otherwise, this release of GCC should now match
|
||
|
|
more of the configuration used in the stock FreeBSD configuration of
|
||
|
|
GCC. In particular, <samp><span class="option">--enable-threads</span></samp> is now configured by
|
||
|
|
default. However, as a general user, do not attempt to replace the
|
||
|
|
system compiler with this release. Known to bootstrap and check with
|
||
|
|
good results on FreeBSD 7.2-STABLE. In the past, known to bootstrap
|
||
|
|
and check with good results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3, 4.4,
|
||
|
|
4.5, 4.8, 4.9 and 5-CURRENT.
|
||
|
|
|
||
|
|
<p>The version of binutils installed in <samp><span class="file">/usr/bin</span></samp> probably works
|
||
|
|
with this release of GCC. Bootstrapping against the latest GNU
|
||
|
|
binutils and/or the version found in <samp><span class="file">/usr/ports/devel/binutils</span></samp> has
|
||
|
|
been known to enable additional features and improve overall testsuite
|
||
|
|
results. However, it is currently known that boehm-gc (which itself
|
||
|
|
is required for java) may not configure properly on FreeBSD prior to
|
||
|
|
the FreeBSD 7.0 release with GNU binutils after 2.16.1.
|
||
|
|
|
||
|
|
<p><hr /><a name="h8300_002dhms"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC14"></a>h8300-hms</h3>
|
||
|
|
|
||
|
|
<p>Renesas H8/300 series of processors.
|
||
|
|
|
||
|
|
<p>Please have a look at the <a href="binaries.html">binaries page</a>.
|
||
|
|
|
||
|
|
<p>The calling convention and structure layout has changed in release 2.6.
|
||
|
|
All code must be recompiled. The calling convention now passes the
|
||
|
|
first three arguments in function calls in registers. Structures are no
|
||
|
|
longer a multiple of 2 bytes.
|
||
|
|
|
||
|
|
<p><hr /><a name="hppa_002dhp_002dhpux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC15"></a>hppa*-hp-hpux*</h3>
|
||
|
|
|
||
|
|
<p>Support for HP-UX version 9 and older was discontinued in GCC 3.4.
|
||
|
|
|
||
|
|
<p>We require using gas/binutils on all hppa platforms. Version 2.19 or
|
||
|
|
later is recommended.
|
||
|
|
|
||
|
|
<p>It may be helpful to configure GCC with the
|
||
|
|
<a href="./configure.html#with-gnu-as"><samp><span class="option">--with-gnu-as</span></samp></a> and
|
||
|
|
<samp><span class="option">--with-as=...</span></samp> options to ensure that GCC can find GAS.
|
||
|
|
|
||
|
|
<p>The HP assembler should not be used with GCC. It is rarely tested and may
|
||
|
|
not work. It shouldn't be used with any languages other than C due to its
|
||
|
|
many limitations.
|
||
|
|
|
||
|
|
<p>Specifically, <samp><span class="option">-g</span></samp> does not work (HP-UX uses a peculiar debugging
|
||
|
|
format which GCC does not know about). It also inserts timestamps
|
||
|
|
into each object file it creates, causing the 3-stage comparison test to
|
||
|
|
fail during a bootstrap. You should be able to continue by saying
|
||
|
|
‘<samp><span class="samp">make all-host all-target</span></samp>’ after getting the failure from ‘<samp><span class="samp">make</span></samp>’.
|
||
|
|
|
||
|
|
<p>Various GCC features are not supported. For example, it does not support weak
|
||
|
|
symbols or alias definitions. As a result, explicit template instantiations
|
||
|
|
are required when using C++. This makes it difficult if not impossible to
|
||
|
|
build many C++ applications.
|
||
|
|
|
||
|
|
<p>There are two default scheduling models for instructions. These are
|
||
|
|
PROCESSOR_7100LC and PROCESSOR_8000. They are selected from the pa-risc
|
||
|
|
architecture specified for the target machine when configuring.
|
||
|
|
PROCESSOR_8000 is the default. PROCESSOR_7100LC is selected when
|
||
|
|
the target is a ‘<samp><span class="samp">hppa1*</span></samp>’ machine.
|
||
|
|
|
||
|
|
<p>The PROCESSOR_8000 model is not well suited to older processors. Thus,
|
||
|
|
it is important to completely specify the machine architecture when
|
||
|
|
configuring if you want a model other than PROCESSOR_8000. The macro
|
||
|
|
TARGET_SCHED_DEFAULT can be defined in BOOT_CFLAGS if a different
|
||
|
|
default scheduling model is desired.
|
||
|
|
|
||
|
|
<p>As of GCC 4.0, GCC uses the UNIX 95 namespace for HP-UX 10.10
|
||
|
|
through 11.00, and the UNIX 98 namespace for HP-UX 11.11 and later.
|
||
|
|
This namespace change might cause problems when bootstrapping with
|
||
|
|
an earlier version of GCC or the HP compiler as essentially the same
|
||
|
|
namespace is required for an entire build. This problem can be avoided
|
||
|
|
in a number of ways. With HP cc, <samp><span class="env">UNIX_STD</span></samp> can be set to ‘<samp><span class="samp">95</span></samp>’
|
||
|
|
or ‘<samp><span class="samp">98</span></samp>’. Another way is to add an appropriate set of predefines
|
||
|
|
to <samp><span class="env">CC</span></samp>. The description for the <samp><span class="option">munix=</span></samp> option contains
|
||
|
|
a list of the predefines used with each standard.
|
||
|
|
|
||
|
|
<p>More specific information to ‘<samp><span class="samp">hppa*-hp-hpux*</span></samp>’ targets follows.
|
||
|
|
|
||
|
|
<p><hr /><a name="hppa_002dhp_002dhpux10"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC16"></a>hppa*-hp-hpux10</h3>
|
||
|
|
|
||
|
|
<p>For hpux10.20, we <em>highly</em> recommend you pick up the latest sed patch
|
||
|
|
<code>PHCO_19798</code> from HP.
|
||
|
|
|
||
|
|
<p>The C++ ABI has changed incompatibly in GCC 4.0. COMDAT subspaces are
|
||
|
|
used for one-only code and data. This resolves many of the previous
|
||
|
|
problems in using C++ on this target. However, the ABI is not compatible
|
||
|
|
with the one implemented under HP-UX 11 using secondary definitions.
|
||
|
|
|
||
|
|
<p><hr /><a name="hppa_002dhp_002dhpux11"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC17"></a>hppa*-hp-hpux11</h3>
|
||
|
|
|
||
|
|
<p>GCC 3.0 and up support HP-UX 11. GCC 2.95.x is not supported and cannot
|
||
|
|
be used to compile GCC 3.0 and up.
|
||
|
|
|
||
|
|
<p>The libffi and libjava libraries haven't been ported to 64-bit HP-UX and don't build.
|
||
|
|
|
||
|
|
<p>Refer to <a href="binaries.html">binaries</a> for information about obtaining
|
||
|
|
precompiled GCC binaries for HP-UX. Precompiled binaries must be obtained
|
||
|
|
to build the Ada language as it can't be bootstrapped using C. Ada is
|
||
|
|
only available for the 32-bit PA-RISC runtime.
|
||
|
|
|
||
|
|
<p>Starting with GCC 3.4 an ISO C compiler is required to bootstrap. The
|
||
|
|
bundled compiler supports only traditional C; you will need either HP's
|
||
|
|
unbundled compiler, or a binary distribution of GCC.
|
||
|
|
|
||
|
|
<p>It is possible to build GCC 3.3 starting with the bundled HP compiler,
|
||
|
|
but the process requires several steps. GCC 3.3 can then be used to
|
||
|
|
build later versions. The fastjar program contains ISO C code and
|
||
|
|
can't be built with the HP bundled compiler. This problem can be
|
||
|
|
avoided by not building the Java language. For example, use the
|
||
|
|
<samp><span class="option">--enable-languages="c,c++,f77,objc"</span></samp> option in your configure
|
||
|
|
command.
|
||
|
|
|
||
|
|
<p>There are several possible approaches to building the distribution.
|
||
|
|
Binutils can be built first using the HP tools. Then, the GCC
|
||
|
|
distribution can be built. The second approach is to build GCC
|
||
|
|
first using the HP tools, then build binutils, then rebuild GCC.
|
||
|
|
There have been problems with various binary distributions, so it
|
||
|
|
is best not to start from a binary distribution.
|
||
|
|
|
||
|
|
<p>On 64-bit capable systems, there are two distinct targets. Different
|
||
|
|
installation prefixes must be used if both are to be installed on
|
||
|
|
the same system. The ‘<samp><span class="samp">hppa[1-2]*-hp-hpux11*</span></samp>’ target generates code
|
||
|
|
for the 32-bit PA-RISC runtime architecture and uses the HP linker.
|
||
|
|
The ‘<samp><span class="samp">hppa64-hp-hpux11*</span></samp>’ target generates 64-bit code for the
|
||
|
|
PA-RISC 2.0 architecture.
|
||
|
|
|
||
|
|
<p>The script config.guess now selects the target type based on the compiler
|
||
|
|
detected during configuration. You must define <samp><span class="env">PATH</span></samp> or <samp><span class="env">CC</span></samp> so
|
||
|
|
that configure finds an appropriate compiler for the initial bootstrap.
|
||
|
|
When <samp><span class="env">CC</span></samp> is used, the definition should contain the options that are
|
||
|
|
needed whenever <samp><span class="env">CC</span></samp> is used.
|
||
|
|
|
||
|
|
<p>Specifically, options that determine the runtime architecture must be
|
||
|
|
in <samp><span class="env">CC</span></samp> to correctly select the target for the build. It is also
|
||
|
|
convenient to place many other compiler options in <samp><span class="env">CC</span></samp>. For example,
|
||
|
|
<samp><span class="env">CC="cc -Ac +DA2.0W -Wp,-H16376 -D_CLASSIC_TYPES -D_HPUX_SOURCE"</span></samp>
|
||
|
|
can be used to bootstrap the GCC 3.3 branch with the HP compiler in
|
||
|
|
64-bit K&R/bundled mode. The <samp><span class="option">+DA2.0W</span></samp> option will result in
|
||
|
|
the automatic selection of the ‘<samp><span class="samp">hppa64-hp-hpux11*</span></samp>’ target. The
|
||
|
|
macro definition table of cpp needs to be increased for a successful
|
||
|
|
build with the HP compiler. _CLASSIC_TYPES and _HPUX_SOURCE need to
|
||
|
|
be defined when building with the bundled compiler, or when using the
|
||
|
|
<samp><span class="option">-Ac</span></samp> option. These defines aren't necessary with <samp><span class="option">-Ae</span></samp>.
|
||
|
|
|
||
|
|
<p>It is best to explicitly configure the ‘<samp><span class="samp">hppa64-hp-hpux11*</span></samp>’ target
|
||
|
|
with the <samp><span class="option">--with-ld=...</span></samp> option. This overrides the standard
|
||
|
|
search for ld. The two linkers supported on this target require different
|
||
|
|
commands. The default linker is determined during configuration. As a
|
||
|
|
result, it's not possible to switch linkers in the middle of a GCC build.
|
||
|
|
This has been reported to sometimes occur in unified builds of binutils
|
||
|
|
and GCC.
|
||
|
|
|
||
|
|
<p>A recent linker patch must be installed for the correct operation of
|
||
|
|
GCC 3.3 and later. <code>PHSS_26559</code> and <code>PHSS_24304</code> are the
|
||
|
|
oldest linker patches that are known to work. They are for HP-UX
|
||
|
|
11.00 and 11.11, respectively. <code>PHSS_24303</code>, the companion to
|
||
|
|
<code>PHSS_24304</code>, might be usable but it hasn't been tested. These
|
||
|
|
patches have been superseded. Consult the HP patch database to obtain
|
||
|
|
the currently recommended linker patch for your system.
|
||
|
|
|
||
|
|
<p>The patches are necessary for the support of weak symbols on the
|
||
|
|
32-bit port, and for the running of initializers and finalizers. Weak
|
||
|
|
symbols are implemented using SOM secondary definition symbols. Prior
|
||
|
|
to HP-UX 11, there are bugs in the linker support for secondary symbols.
|
||
|
|
The patches correct a problem of linker core dumps creating shared
|
||
|
|
libraries containing secondary symbols, as well as various other
|
||
|
|
linking issues involving secondary symbols.
|
||
|
|
|
||
|
|
<p>GCC 3.3 uses the ELF DT_INIT_ARRAY and DT_FINI_ARRAY capabilities to
|
||
|
|
run initializers and finalizers on the 64-bit port. The 32-bit port
|
||
|
|
uses the linker <samp><span class="option">+init</span></samp> and <samp><span class="option">+fini</span></samp> options for the same
|
||
|
|
purpose. The patches correct various problems with the +init/+fini
|
||
|
|
options, including program core dumps. Binutils 2.14 corrects a
|
||
|
|
problem on the 64-bit port resulting from HP's non-standard use of
|
||
|
|
the .init and .fini sections for array initializers and finalizers.
|
||
|
|
|
||
|
|
<p>Although the HP and GNU linkers are both supported for the
|
||
|
|
‘<samp><span class="samp">hppa64-hp-hpux11*</span></samp>’ target, it is strongly recommended that the
|
||
|
|
HP linker be used for link editing on this target.
|
||
|
|
|
||
|
|
<p>At this time, the GNU linker does not support the creation of long
|
||
|
|
branch stubs. As a result, it can't successfully link binaries
|
||
|
|
containing branch offsets larger than 8 megabytes. In addition,
|
||
|
|
there are problems linking shared libraries, linking executables
|
||
|
|
with <samp><span class="option">-static</span></samp>, and with dwarf2 unwind and exception support.
|
||
|
|
It also doesn't provide stubs for internal calls to global functions
|
||
|
|
in shared libraries, so these calls can't be overloaded.
|
||
|
|
|
||
|
|
<p>The HP dynamic loader does not support GNU symbol versioning, so symbol
|
||
|
|
versioning is not supported. It may be necessary to disable symbol
|
||
|
|
versioning with <samp><span class="option">--disable-symvers</span></samp> when using GNU ld.
|
||
|
|
|
||
|
|
<p>POSIX threads are the default. The optional DCE thread library is not
|
||
|
|
supported, so <samp><span class="option">--enable-threads=dce</span></samp> does not work.
|
||
|
|
|
||
|
|
<p><hr /><a name="x_002dx_002dlinux_002dgnu"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC18"></a>*-*-linux-gnu</h3>
|
||
|
|
|
||
|
|
<p>Versions of libstdc++-v3 starting with 3.2.1 require bug fixes present
|
||
|
|
in glibc 2.2.5 and later. More information is available in the
|
||
|
|
libstdc++-v3 documentation.
|
||
|
|
|
||
|
|
<p><hr /><a name="ix86_002dx_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC19"></a>i?86-*-linux*</h3>
|
||
|
|
|
||
|
|
<p>As of GCC 3.3, binutils 2.13.1 or later is required for this platform.
|
||
|
|
See <a href="http://gcc.gnu.org/PR10877">bug 10877</a> for more information.
|
||
|
|
|
||
|
|
<p>If you receive Signal 11 errors when building on GNU/Linux, then it is
|
||
|
|
possible you have a hardware problem. Further information on this can be
|
||
|
|
found on <a href="http://www.bitwizard.nl/sig11/">www.bitwizard.nl</a>.
|
||
|
|
|
||
|
|
<p><hr /><a name="ix86_002dx_002dsolaris210"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC20"></a>i?86-*-solaris2.10</h3>
|
||
|
|
|
||
|
|
<p>Use this for Solaris 10 or later on x86 and x86-64 systems. Starting
|
||
|
|
with GCC 4.7, there is also a 64-bit ‘<samp><span class="samp">amd64-*-solaris2.1[0-9]*</span></samp>’ or
|
||
|
|
‘<samp><span class="samp">x86_64-*-solaris2.1[0-9]*</span></samp>’ configuration that corresponds to
|
||
|
|
‘<samp><span class="samp">sparcv9-sun-solaris2*</span></samp>’.
|
||
|
|
|
||
|
|
<p>It is recommended that you configure GCC to use the GNU assembler, in
|
||
|
|
<samp><span class="file">/usr/sfw/bin/gas</span></samp>. The versions included in Solaris 10, from GNU
|
||
|
|
binutils 2.15, and Solaris 11, from GNU binutils 2.19, work fine,
|
||
|
|
although the current version, from GNU binutils
|
||
|
|
2.22, is known to work, too. Recent versions of the Sun assembler in
|
||
|
|
<samp><span class="file">/usr/ccs/bin/as</span></samp> work almost as well, though.
|
||
|
|
<!-- FIXME: as patch requirements? -->
|
||
|
|
|
||
|
|
<p>For linking, the Sun linker, is preferred. If you want to use the GNU
|
||
|
|
linker instead, which is available in <samp><span class="file">/usr/sfw/bin/gld</span></samp>, note that
|
||
|
|
due to a packaging bug the version in Solaris 10, from GNU binutils
|
||
|
|
2.15, cannot be used, while the version in Solaris 11, from GNU binutils
|
||
|
|
2.19, works, as does the latest version, from GNU binutils 2.22.
|
||
|
|
|
||
|
|
<p>To use GNU <samp><span class="command">as</span></samp>, configure with the options
|
||
|
|
<samp><span class="option">--with-gnu-as --with-as=/usr/sfw/bin/gas</span></samp>. It may be necessary
|
||
|
|
to configure with <samp><span class="option">--without-gnu-ld --with-ld=/usr/ccs/bin/ld</span></samp> to
|
||
|
|
guarantee use of Sun <samp><span class="command">ld</span></samp>.
|
||
|
|
<!-- FIXME: why -without-gnu-ld -with-ld? -->
|
||
|
|
|
||
|
|
<p><hr /><a name="ia64_002dx_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC21"></a>ia64-*-linux</h3>
|
||
|
|
|
||
|
|
<p>IA-64 processor (also known as IPF, or Itanium Processor Family)
|
||
|
|
running GNU/Linux.
|
||
|
|
|
||
|
|
<p>If you are using the installed system libunwind library with
|
||
|
|
<samp><span class="option">--with-system-libunwind</span></samp>, then you must use libunwind 0.98 or
|
||
|
|
later.
|
||
|
|
|
||
|
|
<p>None of the following versions of GCC has an ABI that is compatible
|
||
|
|
with any of the other versions in this list, with the exception that
|
||
|
|
Red Hat 2.96 and Trillian 000171 are compatible with each other:
|
||
|
|
3.1, 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717.
|
||
|
|
This primarily affects C++ programs and programs that create shared libraries.
|
||
|
|
GCC 3.1 or later is recommended for compiling linux, the kernel.
|
||
|
|
As of version 3.1 GCC is believed to be fully ABI compliant, and hence no
|
||
|
|
more major ABI changes are expected.
|
||
|
|
|
||
|
|
<p><hr /><a name="ia64_002dx_002dhpux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC22"></a>ia64-*-hpux*</h3>
|
||
|
|
|
||
|
|
<p>Building GCC on this target requires the GNU Assembler. The bundled HP
|
||
|
|
assembler will not work. To prevent GCC from using the wrong assembler,
|
||
|
|
the option <samp><span class="option">--with-gnu-as</span></samp> may be necessary.
|
||
|
|
|
||
|
|
<p>The GCC libunwind library has not been ported to HPUX. This means that for
|
||
|
|
GCC versions 3.2.3 and earlier, <samp><span class="option">--enable-libunwind-exceptions</span></samp>
|
||
|
|
is required to build GCC. For GCC 3.3 and later, this is the default.
|
||
|
|
For gcc 3.4.3 and later, <samp><span class="option">--enable-libunwind-exceptions</span></samp> is
|
||
|
|
removed and the system libunwind library will always be used.
|
||
|
|
|
||
|
|
<p><hr />
|
||
|
|
<!-- rs6000-ibm-aix*, powerpc-ibm-aix* --><a name="x_002dibm_002daix"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC23"></a>*-ibm-aix*</h3>
|
||
|
|
|
||
|
|
<p>Support for AIX version 3 and older was discontinued in GCC 3.4.
|
||
|
|
Support for AIX version 4.2 and older was discontinued in GCC 4.5.
|
||
|
|
|
||
|
|
<p>“out of memory” bootstrap failures may indicate a problem with
|
||
|
|
process resource limits (ulimit). Hard limits are configured in the
|
||
|
|
<samp><span class="file">/etc/security/limits</span></samp> system configuration file.
|
||
|
|
|
||
|
|
<p>GCC can bootstrap with recent versions of IBM XLC, but bootstrapping
|
||
|
|
with an earlier release of GCC is recommended. Bootstrapping with XLC
|
||
|
|
requires a larger data segment, which can be enabled through the
|
||
|
|
<var>LDR_CNTRL</var> environment variable, e.g.,
|
||
|
|
|
||
|
|
<pre class="smallexample"> % LDR_CNTRL=MAXDATA=0x50000000
|
||
|
|
% export LDR_CNTRL
|
||
|
|
</pre>
|
||
|
|
<p>One can start with a pre-compiled version of GCC to build from
|
||
|
|
sources. One may delete GCC's “fixed” header files when starting
|
||
|
|
with a version of GCC built for an earlier release of AIX.
|
||
|
|
|
||
|
|
<p>To speed up the configuration phases of bootstrapping and installing GCC,
|
||
|
|
one may use GNU Bash instead of AIX <samp><span class="command">/bin/sh</span></samp>, e.g.,
|
||
|
|
|
||
|
|
<pre class="smallexample"> % CONFIG_SHELL=/opt/freeware/bin/bash
|
||
|
|
% export CONFIG_SHELL
|
||
|
|
</pre>
|
||
|
|
<p>and then proceed as described in <a href="build.html">the build instructions</a>, where we strongly recommend specifying an absolute path
|
||
|
|
to invoke <var>srcdir</var>/configure.
|
||
|
|
|
||
|
|
<p>Because GCC on AIX is built as a 32-bit executable by default,
|
||
|
|
(although it can generate 64-bit programs) the GMP and MPFR libraries
|
||
|
|
required by gfortran must be 32-bit libraries. Building GMP and MPFR
|
||
|
|
as static archive libraries works better than shared libraries.
|
||
|
|
|
||
|
|
<p>Errors involving <code>alloca</code> when building GCC generally are due
|
||
|
|
to an incorrect definition of <code>CC</code> in the Makefile or mixing files
|
||
|
|
compiled with the native C compiler and GCC. During the stage1 phase of
|
||
|
|
the build, the native AIX compiler <strong>must</strong> be invoked as <samp><span class="command">cc</span></samp>
|
||
|
|
(not <samp><span class="command">xlc</span></samp>). Once <samp><span class="command">configure</span></samp> has been informed of
|
||
|
|
<samp><span class="command">xlc</span></samp>, one needs to use ‘<samp><span class="samp">make distclean</span></samp>’ to remove the
|
||
|
|
configure cache files and ensure that <samp><span class="env">CC</span></samp> environment variable
|
||
|
|
does not provide a definition that will confuse <samp><span class="command">configure</span></samp>.
|
||
|
|
If this error occurs during stage2 or later, then the problem most likely
|
||
|
|
is the version of Make (see above).
|
||
|
|
|
||
|
|
<p>The native <samp><span class="command">as</span></samp> and <samp><span class="command">ld</span></samp> are recommended for
|
||
|
|
bootstrapping on AIX. The GNU Assembler, GNU Linker, and GNU
|
||
|
|
Binutils version 2.20 is the minimum level that supports bootstrap on
|
||
|
|
AIX 5. The GNU Assembler has not been updated to support AIX 6 or
|
||
|
|
AIX 7. The native AIX tools do interoperate with GCC.
|
||
|
|
|
||
|
|
<p>AIX 5.3 TL10, AIX 6.1 TL05 and AIX 7.1 TL00 introduced an AIX
|
||
|
|
assembler change that sometimes produces corrupt assembly files
|
||
|
|
causing AIX linker errors. The bug breaks GCC bootstrap on AIX and
|
||
|
|
can cause compilation failures with existing GCC installations. An
|
||
|
|
AIX iFix for AIX 5.3 is available (APAR IZ98385 for AIX 5.3 TL10, APAR
|
||
|
|
IZ98477 for AIX 5.3 TL11 and IZ98134 for AIX 5.3 TL12). AIX 5.3 TL11 SP8,
|
||
|
|
AIX 5.3 TL12 SP5, AIX 6.1 TL04 SP11, AIX 6.1 TL05 SP7, AIX 6.1 TL06 SP6,
|
||
|
|
AIX 6.1 TL07 and AIX 7.1 TL01 should include the fix.
|
||
|
|
|
||
|
|
<p>Building <samp><span class="file">libstdc++.a</span></samp> requires a fix for an AIX Assembler bug
|
||
|
|
APAR IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1). It also requires a
|
||
|
|
fix for another AIX Assembler bug and a co-dependent AIX Archiver fix
|
||
|
|
referenced as APAR IY53606 (AIX 5.2) or as APAR IY54774 (AIX 5.1)
|
||
|
|
|
||
|
|
<p><a name="TransferAixShobj"></a>‘<samp><span class="samp">libstdc++</span></samp>’ in GCC 3.4 increments the major version number of the
|
||
|
|
shared object and GCC installation places the <samp><span class="file">libstdc++.a</span></samp>
|
||
|
|
shared library in a common location which will overwrite the and GCC
|
||
|
|
3.3 version of the shared library. Applications either need to be
|
||
|
|
re-linked against the new shared library or the GCC 3.1 and GCC 3.3
|
||
|
|
versions of the ‘<samp><span class="samp">libstdc++</span></samp>’ shared object needs to be available
|
||
|
|
to the AIX runtime loader. The GCC 3.1 ‘<samp><span class="samp">libstdc++.so.4</span></samp>’, if
|
||
|
|
present, and GCC 3.3 ‘<samp><span class="samp">libstdc++.so.5</span></samp>’ shared objects can be
|
||
|
|
installed for runtime dynamic loading using the following steps to set
|
||
|
|
the ‘<samp><span class="samp">F_LOADONLY</span></samp>’ flag in the shared object for <em>each</em>
|
||
|
|
multilib <samp><span class="file">libstdc++.a</span></samp> installed:
|
||
|
|
|
||
|
|
<p>Extract the shared objects from the currently installed
|
||
|
|
<samp><span class="file">libstdc++.a</span></samp> archive:
|
||
|
|
<pre class="smallexample"> % ar -x libstdc++.a libstdc++.so.4 libstdc++.so.5
|
||
|
|
</pre>
|
||
|
|
<p>Enable the ‘<samp><span class="samp">F_LOADONLY</span></samp>’ flag so that the shared object will be
|
||
|
|
available for runtime dynamic loading, but not linking:
|
||
|
|
<pre class="smallexample"> % strip -e libstdc++.so.4 libstdc++.so.5
|
||
|
|
</pre>
|
||
|
|
<p>Archive the runtime-only shared object in the GCC 3.4
|
||
|
|
<samp><span class="file">libstdc++.a</span></samp> archive:
|
||
|
|
<pre class="smallexample"> % ar -q libstdc++.a libstdc++.so.4 libstdc++.so.5
|
||
|
|
</pre>
|
||
|
|
<p>Eventually, the
|
||
|
|
<a href="./configure.html#WithAixSoname"><samp><span class="option">--with-aix-soname=svr4</span></samp></a>
|
||
|
|
configure option may drop the need for this procedure for libraries that
|
||
|
|
support it.
|
||
|
|
|
||
|
|
<p>Linking executables and shared libraries may produce warnings of
|
||
|
|
duplicate symbols. The assembly files generated by GCC for AIX always
|
||
|
|
have included multiple symbol definitions for certain global variable
|
||
|
|
and function declarations in the original program. The warnings should
|
||
|
|
not prevent the linker from producing a correct library or runnable
|
||
|
|
executable.
|
||
|
|
|
||
|
|
<p>AIX 4.3 utilizes a “large format” archive to support both 32-bit and
|
||
|
|
64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1
|
||
|
|
to parse archive libraries did not handle the new format correctly.
|
||
|
|
These routines are used by GCC and result in error messages during
|
||
|
|
linking such as “not a COFF file”. The version of the routines shipped
|
||
|
|
with AIX 4.3.1 should work for a 32-bit environment. The <samp><span class="option">-g</span></samp>
|
||
|
|
option of the archive command may be used to create archives of 32-bit
|
||
|
|
objects using the original “small format”. A correct version of the
|
||
|
|
routines is shipped with AIX 4.3.2 and above.
|
||
|
|
|
||
|
|
<p>Some versions of the AIX binder (linker) can fail with a relocation
|
||
|
|
overflow severe error when the <samp><span class="option">-bbigtoc</span></samp> option is used to link
|
||
|
|
GCC-produced object files into an executable that overflows the TOC. A fix
|
||
|
|
for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is
|
||
|
|
available from IBM Customer Support and from its
|
||
|
|
<a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
|
||
|
|
website as PTF U455193.
|
||
|
|
|
||
|
|
<p>The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core
|
||
|
|
with a segmentation fault when invoked by any version of GCC. A fix for
|
||
|
|
APAR IX87327 is available from IBM Customer Support and from its
|
||
|
|
<a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
|
||
|
|
website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above.
|
||
|
|
|
||
|
|
<p>The initial assembler shipped with AIX 4.3.0 generates incorrect object
|
||
|
|
files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS
|
||
|
|
TO ASSEMBLE/BIND) is available from IBM Customer Support and from its
|
||
|
|
<a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
|
||
|
|
website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above.
|
||
|
|
|
||
|
|
<p>AIX provides National Language Support (NLS). Compilers and assemblers
|
||
|
|
use NLS to support locale-specific representations of various data
|
||
|
|
formats including floating-point numbers (e.g., ‘<samp><span class="samp">.</span></samp>’ vs ‘<samp><span class="samp">,</span></samp>’ for
|
||
|
|
separating decimal fractions). There have been problems reported where
|
||
|
|
GCC does not produce the same floating-point formats that the assembler
|
||
|
|
expects. If one encounters this problem, set the <samp><span class="env">LANG</span></samp>
|
||
|
|
environment variable to ‘<samp><span class="samp">C</span></samp>’ or ‘<samp><span class="samp">En_US</span></samp>’.
|
||
|
|
|
||
|
|
<p>A default can be specified with the <samp><span class="option">-mcpu=</span><var>cpu_type</var></samp>
|
||
|
|
switch and using the configure option <samp><span class="option">--with-cpu-</span><var>cpu_type</var></samp>.
|
||
|
|
|
||
|
|
<p><hr /><a name="iq2000_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC24"></a>iq2000-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Vitesse IQ2000 processors. These are used in embedded
|
||
|
|
applications. There are no standard Unix configurations.
|
||
|
|
|
||
|
|
<p><hr /><a name="lm32_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC25"></a>lm32-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Lattice Mico32 processor.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="lm32_002dx_002duclinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC26"></a>lm32-*-uclinux</h3>
|
||
|
|
|
||
|
|
<p>Lattice Mico32 processor.
|
||
|
|
This configuration is intended for embedded systems running uClinux.
|
||
|
|
|
||
|
|
<p><hr /><a name="m32c_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC27"></a>m32c-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Renesas M32C processor.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="m32r_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC28"></a>m32r-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Renesas M32R processor.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="m68k_002dx_002dx"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC29"></a>m68k-*-*</h3>
|
||
|
|
|
||
|
|
<p>By default,
|
||
|
|
‘<samp><span class="samp">m68k-*-elf*</span></samp>’, ‘<samp><span class="samp">m68k-*-rtems</span></samp>’, ‘<samp><span class="samp">m68k-*-uclinux</span></samp>’ and
|
||
|
|
‘<samp><span class="samp">m68k-*-linux</span></samp>’
|
||
|
|
build libraries for both M680x0 and ColdFire processors. If you only
|
||
|
|
need the M680x0 libraries, you can omit the ColdFire ones by passing
|
||
|
|
<samp><span class="option">--with-arch=m68k</span></samp> to <samp><span class="command">configure</span></samp>. Alternatively, you
|
||
|
|
can omit the M680x0 libraries by passing <samp><span class="option">--with-arch=cf</span></samp> to
|
||
|
|
<samp><span class="command">configure</span></samp>. These targets default to 5206 or 5475 code as
|
||
|
|
appropriate for the target system when
|
||
|
|
configured with <samp><span class="option">--with-arch=cf</span></samp> and 68020 code otherwise.
|
||
|
|
|
||
|
|
<p>The ‘<samp><span class="samp">m68k-*-netbsd</span></samp>’ and
|
||
|
|
‘<samp><span class="samp">m68k-*-openbsd</span></samp>’ targets also support the <samp><span class="option">--with-arch</span></samp>
|
||
|
|
option. They will generate ColdFire CFV4e code when configured with
|
||
|
|
<samp><span class="option">--with-arch=cf</span></samp> and 68020 code otherwise.
|
||
|
|
|
||
|
|
<p>You can override the default processors listed above by configuring
|
||
|
|
with <samp><span class="option">--with-cpu=</span><var>target</var></samp>. This <var>target</var> can either
|
||
|
|
be a <samp><span class="option">-mcpu</span></samp> argument or one of the following values:
|
||
|
|
‘<samp><span class="samp">m68000</span></samp>’, ‘<samp><span class="samp">m68010</span></samp>’, ‘<samp><span class="samp">m68020</span></samp>’, ‘<samp><span class="samp">m68030</span></samp>’,
|
||
|
|
‘<samp><span class="samp">m68040</span></samp>’, ‘<samp><span class="samp">m68060</span></samp>’, ‘<samp><span class="samp">m68020-40</span></samp>’ and ‘<samp><span class="samp">m68020-60</span></samp>’.
|
||
|
|
|
||
|
|
<p>GCC requires at least binutils version 2.17 on these targets.
|
||
|
|
|
||
|
|
<p><hr /><a name="m68k_002dx_002duclinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC30"></a>m68k-*-uclinux</h3>
|
||
|
|
|
||
|
|
<p>GCC 4.3 changed the uClinux configuration so that it uses the
|
||
|
|
‘<samp><span class="samp">m68k-linux-gnu</span></samp>’ ABI rather than the ‘<samp><span class="samp">m68k-elf</span></samp>’ ABI.
|
||
|
|
It also added improved support for C++ and flat shared libraries,
|
||
|
|
both of which were ABI changes.
|
||
|
|
|
||
|
|
<p><hr /><a name="mep_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC31"></a>mep-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Toshiba Media embedded Processor.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="microblaze_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC32"></a>microblaze-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Xilinx MicroBlaze processor.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="mips_002dx_002dx"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC33"></a>mips-*-*</h3>
|
||
|
|
|
||
|
|
<p>If on a MIPS system you get an error message saying “does not have gp
|
||
|
|
sections for all it's [sic] sectons [sic]”, don't worry about it. This
|
||
|
|
happens whenever you use GAS with the MIPS linker, but there is not
|
||
|
|
really anything wrong, and it is okay to use the output file. You can
|
||
|
|
stop such warnings by installing the GNU linker.
|
||
|
|
|
||
|
|
<p>It would be nice to extend GAS to produce the gp tables, but they are
|
||
|
|
optional, and there should not be a warning about their absence.
|
||
|
|
|
||
|
|
<p>The libstdc++ atomic locking routines for MIPS targets requires MIPS II
|
||
|
|
and later. A patch went in just after the GCC 3.3 release to
|
||
|
|
make ‘<samp><span class="samp">mips*-*-*</span></samp>’ use the generic implementation instead. You can also
|
||
|
|
configure for ‘<samp><span class="samp">mipsel-elf</span></samp>’ as a workaround. The
|
||
|
|
‘<samp><span class="samp">mips*-*-linux*</span></samp>’ target continues to use the MIPS II routines. More
|
||
|
|
work on this is expected in future releases.
|
||
|
|
|
||
|
|
<!-- If you make -with-llsc the default for another target, please also -->
|
||
|
|
<!-- update the description of the -with-llsc option. -->
|
||
|
|
<p>The built-in <code>__sync_*</code> functions are available on MIPS II and
|
||
|
|
later systems and others that support the ‘<samp><span class="samp">ll</span></samp>’, ‘<samp><span class="samp">sc</span></samp>’ and
|
||
|
|
‘<samp><span class="samp">sync</span></samp>’ instructions. This can be overridden by passing
|
||
|
|
<samp><span class="option">--with-llsc</span></samp> or <samp><span class="option">--without-llsc</span></samp> when configuring GCC.
|
||
|
|
Since the Linux kernel emulates these instructions if they are
|
||
|
|
missing, the default for ‘<samp><span class="samp">mips*-*-linux*</span></samp>’ targets is
|
||
|
|
<samp><span class="option">--with-llsc</span></samp>. The <samp><span class="option">--with-llsc</span></samp> and
|
||
|
|
<samp><span class="option">--without-llsc</span></samp> configure options may be overridden at compile
|
||
|
|
time by passing the <samp><span class="option">-mllsc</span></samp> or <samp><span class="option">-mno-llsc</span></samp> options to
|
||
|
|
the compiler.
|
||
|
|
|
||
|
|
<p>MIPS systems check for division by zero (unless
|
||
|
|
<samp><span class="option">-mno-check-zero-division</span></samp> is passed to the compiler) by
|
||
|
|
generating either a conditional trap or a break instruction. Using
|
||
|
|
trap results in smaller code, but is only supported on MIPS II and
|
||
|
|
later. Also, some versions of the Linux kernel have a bug that
|
||
|
|
prevents trap from generating the proper signal (<code>SIGFPE</code>). To enable
|
||
|
|
the use of break, use the <samp><span class="option">--with-divide=breaks</span></samp>
|
||
|
|
<samp><span class="command">configure</span></samp> option when configuring GCC. The default is to
|
||
|
|
use traps on systems that support them.
|
||
|
|
|
||
|
|
<p>The assembler from GNU binutils 2.17 and earlier has a bug in the way
|
||
|
|
it sorts relocations for REL targets (o32, o64, EABI). This can cause
|
||
|
|
bad code to be generated for simple C++ programs. Also the linker
|
||
|
|
from GNU binutils versions prior to 2.17 has a bug which causes the
|
||
|
|
runtime linker stubs in very large programs, like <samp><span class="file">libgcj.so</span></samp>, to
|
||
|
|
be incorrectly generated. GNU Binutils 2.18 and later (and snapshots
|
||
|
|
made after Nov. 9, 2006) should be free from both of these problems.
|
||
|
|
|
||
|
|
<p><hr /><a name="mips_002dsgi_002dirix5"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC34"></a>mips-sgi-irix5</h3>
|
||
|
|
|
||
|
|
<p>Support for IRIX 5 has been removed in GCC 4.6.
|
||
|
|
|
||
|
|
<p><hr /><a name="mips_002dsgi_002dirix6"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC35"></a>mips-sgi-irix6</h3>
|
||
|
|
|
||
|
|
<p>Support for IRIX 6.5 has been removed in GCC 4.8. Support for IRIX 6
|
||
|
|
releases before 6.5 has been removed in GCC 4.6, as well as support for
|
||
|
|
the O32 ABI.
|
||
|
|
|
||
|
|
<p><hr /><a name="moxie_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC36"></a>moxie-*-elf</h3>
|
||
|
|
|
||
|
|
<p>The moxie processor.
|
||
|
|
|
||
|
|
<p><hr /><a name="msp430_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC37"></a>msp430-*-elf</h3>
|
||
|
|
|
||
|
|
<p>TI MSP430 processor.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="nds32le_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC38"></a>nds32le-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Andes NDS32 target in little endian mode.
|
||
|
|
|
||
|
|
<p><hr /><a name="nds32be_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC39"></a>nds32be-*-elf</h3>
|
||
|
|
|
||
|
|
<p>Andes NDS32 target in big endian mode.
|
||
|
|
|
||
|
|
<p><hr /><a name="nvptx_002dx_002dnone"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC40"></a>nvptx-*-none</h3>
|
||
|
|
|
||
|
|
<p>Nvidia PTX target.
|
||
|
|
|
||
|
|
<p>Instead of GNU binutils, you will need to install
|
||
|
|
<a href="https://github.com/MentorEmbedded/nvptx-tools/">nvptx-tools</a>.
|
||
|
|
Tell GCC where to find it:
|
||
|
|
<samp><span class="option">--with-build-time-tools=[install-nvptx-tools]/nvptx-none/bin</span></samp>.
|
||
|
|
|
||
|
|
<p>A nvptx port of newlib is available at
|
||
|
|
<a href="https://github.com/MentorEmbedded/nvptx-newlib/">nvptx-newlib</a>.
|
||
|
|
It can be automatically built together with GCC. For this, add a
|
||
|
|
symbolic link to nvptx-newlib's <samp><span class="file">newlib</span></samp> directory to the
|
||
|
|
directory containing the GCC sources.
|
||
|
|
|
||
|
|
<p>Use the <samp><span class="option">--disable-sjlj-exceptions</span></samp> and
|
||
|
|
<samp><span class="option">--enable-newlib-io-long-long</span></samp> options when configuring.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpc_002dx_002dx"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC41"></a>powerpc-*-*</h3>
|
||
|
|
|
||
|
|
<p>You can specify a default version for the <samp><span class="option">-mcpu=</span><var>cpu_type</var></samp>
|
||
|
|
switch by using the configure option <samp><span class="option">--with-cpu-</span><var>cpu_type</var></samp>.
|
||
|
|
|
||
|
|
<p>You will need
|
||
|
|
<a href="ftp://ftp.kernel.org/pub/linux/devel/binutils">binutils 2.15</a>
|
||
|
|
or newer for a working GCC.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpc_002dx_002ddarwin"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC42"></a>powerpc-*-darwin*</h3>
|
||
|
|
|
||
|
|
<p>PowerPC running Darwin (Mac OS X kernel).
|
||
|
|
|
||
|
|
<p>Pre-installed versions of Mac OS X may not include any developer tools,
|
||
|
|
meaning that you will not be able to build GCC from source. Tool
|
||
|
|
binaries are available at
|
||
|
|
<a href="http://opensource.apple.com/">http://opensource.apple.com/</a>.
|
||
|
|
|
||
|
|
<p>This version of GCC requires at least cctools-590.36. The
|
||
|
|
cctools-590.36 package referenced from
|
||
|
|
<a href="http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html">http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html</a> will not work
|
||
|
|
on systems older than 10.3.9 (aka darwin7.9.0).
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpc_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC43"></a>powerpc-*-elf</h3>
|
||
|
|
|
||
|
|
<p>PowerPC system in big endian mode, running System V.4.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpc_002dx_002dlinux_002dgnu"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC44"></a>powerpc*-*-linux-gnu*</h3>
|
||
|
|
|
||
|
|
<p>PowerPC system in big endian mode running Linux.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpc_002dx_002dnetbsd"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC45"></a>powerpc-*-netbsd*</h3>
|
||
|
|
|
||
|
|
<p>PowerPC system in big endian mode running NetBSD.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpc_002dx_002deabisim"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC46"></a>powerpc-*-eabisim</h3>
|
||
|
|
|
||
|
|
<p>Embedded PowerPC system in big endian mode for use in running under the
|
||
|
|
PSIM simulator.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpc_002dx_002deabi"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC47"></a>powerpc-*-eabi</h3>
|
||
|
|
|
||
|
|
<p>Embedded PowerPC system in big endian mode.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpcle_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC48"></a>powerpcle-*-elf</h3>
|
||
|
|
|
||
|
|
<p>PowerPC system in little endian mode, running System V.4.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpcle_002dx_002deabisim"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC49"></a>powerpcle-*-eabisim</h3>
|
||
|
|
|
||
|
|
<p>Embedded PowerPC system in little endian mode for use in running under
|
||
|
|
the PSIM simulator.
|
||
|
|
|
||
|
|
<p><hr /><a name="powerpcle_002dx_002deabi"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC50"></a>powerpcle-*-eabi</h3>
|
||
|
|
|
||
|
|
<p>Embedded PowerPC system in little endian mode.
|
||
|
|
|
||
|
|
<p><hr /><a name="rl78_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC51"></a>rl78-*-elf</h3>
|
||
|
|
|
||
|
|
<p>The Renesas RL78 processor.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="rx_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC52"></a>rx-*-elf</h3>
|
||
|
|
|
||
|
|
<p>The Renesas RX processor. See
|
||
|
|
<a href="http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&fp=/products/mpumcu/rx_family/rx600_series">http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&fp=/products/mpumcu/rx_family/rx600_series</a>
|
||
|
|
for more information about this processor.
|
||
|
|
|
||
|
|
<p><hr /><a name="s390_002dx_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC53"></a>s390-*-linux*</h3>
|
||
|
|
|
||
|
|
<p>S/390 system running GNU/Linux for S/390.
|
||
|
|
|
||
|
|
<p><hr /><a name="s390x_002dx_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC54"></a>s390x-*-linux*</h3>
|
||
|
|
|
||
|
|
<p>zSeries system (64-bit) running GNU/Linux for zSeries.
|
||
|
|
|
||
|
|
<p><hr /><a name="s390x_002dibm_002dtpf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC55"></a>s390x-ibm-tpf*</h3>
|
||
|
|
|
||
|
|
<p>zSeries system (64-bit) running TPF. This platform is
|
||
|
|
supported as cross-compilation target only.
|
||
|
|
|
||
|
|
<p><hr /><!-- Please use Solaris 2 to refer to all release of Solaris, starting -->
|
||
|
|
<!-- with 2.0 until 2.6, 7, 8, etc. Solaris 1 was a marketing name for -->
|
||
|
|
<!-- SunOS 4 releases which we don't use to avoid confusion. Solaris -->
|
||
|
|
<!-- alone is too unspecific and must be avoided. -->
|
||
|
|
<a name="x_002dx_002dsolaris2"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC56"></a>*-*-solaris2*</h3>
|
||
|
|
|
||
|
|
<p>Support for Solaris 9 has been removed in GCC 4.10. Support for Solaris
|
||
|
|
8 has been removed in GCC 4.8. Support for Solaris 7 has been removed
|
||
|
|
in GCC 4.6.
|
||
|
|
|
||
|
|
<p>Sun does not ship a C compiler with Solaris 2 before Solaris 10, though
|
||
|
|
you can download the Sun Studio compilers for free. In Solaris 10 and
|
||
|
|
11, GCC 3.4.3 is available as <samp><span class="command">/usr/sfw/bin/gcc</span></samp>. Solaris 11
|
||
|
|
also provides GCC 4.5.2 as <samp><span class="command">/usr/gcc/4.5/bin/gcc</span></samp>. Alternatively,
|
||
|
|
you can install a pre-built GCC to bootstrap and install GCC. See the
|
||
|
|
<a href="binaries.html">binaries page</a> for details.
|
||
|
|
|
||
|
|
<p>The Solaris 2 <samp><span class="command">/bin/sh</span></samp> will often fail to configure
|
||
|
|
‘<samp><span class="samp">libstdc++-v3</span></samp>’, ‘<samp><span class="samp">boehm-gc</span></samp>’ or ‘<samp><span class="samp">libjava</span></samp>’. We therefore
|
||
|
|
recommend using the following initial sequence of commands
|
||
|
|
|
||
|
|
<pre class="smallexample"> % CONFIG_SHELL=/bin/ksh
|
||
|
|
% export CONFIG_SHELL
|
||
|
|
</pre>
|
||
|
|
<p class="noindent">and proceed as described in <a href="configure.html">the configure instructions</a>.
|
||
|
|
In addition we strongly recommend specifying an absolute path to invoke
|
||
|
|
<samp><var>srcdir</var><span class="command">/configure</span></samp>.
|
||
|
|
|
||
|
|
<p>Solaris 2 comes with a number of optional OS packages. Some of these
|
||
|
|
are needed to use GCC fully, namely <code>SUNWarc</code>,
|
||
|
|
<code>SUNWbtool</code>, <code>SUNWesu</code>, <code>SUNWhea</code>, <code>SUNWlibm</code>,
|
||
|
|
<code>SUNWsprot</code>, and <code>SUNWtoo</code>. If you did not install all
|
||
|
|
optional packages when installing Solaris 2, you will need to verify that
|
||
|
|
the packages that GCC needs are installed.
|
||
|
|
|
||
|
|
<p>To check whether an optional package is installed, use
|
||
|
|
the <samp><span class="command">pkginfo</span></samp> command. To add an optional package, use the
|
||
|
|
<samp><span class="command">pkgadd</span></samp> command. For further details, see the Solaris 2
|
||
|
|
documentation.
|
||
|
|
|
||
|
|
<p>Trying to use the linker and other tools in
|
||
|
|
<samp><span class="file">/usr/ucb</span></samp> to install GCC has been observed to cause trouble.
|
||
|
|
For example, the linker may hang indefinitely. The fix is to remove
|
||
|
|
<samp><span class="file">/usr/ucb</span></samp> from your <samp><span class="env">PATH</span></samp>.
|
||
|
|
|
||
|
|
<p>The build process works more smoothly with the legacy Sun tools so, if you
|
||
|
|
have <samp><span class="file">/usr/xpg4/bin</span></samp> in your <samp><span class="env">PATH</span></samp>, we recommend that you place
|
||
|
|
<samp><span class="file">/usr/bin</span></samp> before <samp><span class="file">/usr/xpg4/bin</span></samp> for the duration of the build.
|
||
|
|
|
||
|
|
<p>We recommend the use of the Sun assembler or the GNU assembler, in
|
||
|
|
conjunction with the Sun linker. The GNU <samp><span class="command">as</span></samp>
|
||
|
|
versions included in Solaris 10, from GNU binutils 2.15, and Solaris 11,
|
||
|
|
from GNU binutils 2.19, are known to work. They can be found in
|
||
|
|
<samp><span class="file">/usr/sfw/bin/gas</span></samp>. Current versions of GNU binutils (2.22)
|
||
|
|
are known to work as well. Note that your mileage may vary
|
||
|
|
if you use a combination of the GNU tools and the Sun tools: while the
|
||
|
|
combination GNU <samp><span class="command">as</span></samp> + Sun <samp><span class="command">ld</span></samp> should reasonably work,
|
||
|
|
the reverse combination Sun <samp><span class="command">as</span></samp> + GNU <samp><span class="command">ld</span></samp> may fail to
|
||
|
|
build or cause memory corruption at runtime in some cases for C++ programs.
|
||
|
|
<!-- FIXME: still? -->
|
||
|
|
GNU <samp><span class="command">ld</span></samp> usually works as well, although the version included in
|
||
|
|
Solaris 10 cannot be used due to several bugs. Again, the current
|
||
|
|
version (2.22) is known to work, but generally lacks platform specific
|
||
|
|
features, so better stay with Sun <samp><span class="command">ld</span></samp>. To use the LTO linker
|
||
|
|
plugin (<samp><span class="option">-fuse-linker-plugin</span></samp>) with GNU <samp><span class="command">ld</span></samp>, GNU
|
||
|
|
binutils <em>must</em> be configured with <samp><span class="option">--enable-largefile</span></samp>.
|
||
|
|
|
||
|
|
<p>To enable symbol versioning in ‘<samp><span class="samp">libstdc++</span></samp>’ with Sun <samp><span class="command">ld</span></samp>,
|
||
|
|
you need to have any version of GNU <samp><span class="command">c++filt</span></samp>, which is part of
|
||
|
|
GNU binutils. ‘<samp><span class="samp">libstdc++</span></samp>’ symbol versioning will be disabled if no
|
||
|
|
appropriate version is found. Sun <samp><span class="command">c++filt</span></samp> from the Sun Studio
|
||
|
|
compilers does <em>not</em> work.
|
||
|
|
|
||
|
|
<p>Sun bug 4296832 turns up when compiling X11 headers with GCC 2.95 or
|
||
|
|
newer: <samp><span class="command">g++</span></samp> will complain that types are missing. These headers
|
||
|
|
assume that omitting the type means <code>int</code>; this assumption worked for
|
||
|
|
C90 but is wrong for C++, and is now wrong for C99 also.
|
||
|
|
|
||
|
|
<p>Sun bug 4927647 sometimes causes random spurious testsuite failures
|
||
|
|
related to missing diagnostic output. This bug doesn't affect GCC
|
||
|
|
itself, rather it is a kernel bug triggered by the <samp><span class="command">expect</span></samp>
|
||
|
|
program which is used only by the GCC testsuite driver. When the bug
|
||
|
|
causes the <samp><span class="command">expect</span></samp> program to miss anticipated output, extra
|
||
|
|
testsuite failures appear.
|
||
|
|
|
||
|
|
<p><hr /><a name="sparc_002dx_002dx"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC57"></a>sparc*-*-*</h3>
|
||
|
|
|
||
|
|
<p>This section contains general configuration information for all
|
||
|
|
SPARC-based platforms. In addition to reading this section, please
|
||
|
|
read all other sections that match your target.
|
||
|
|
|
||
|
|
<p>Newer versions of the GNU Multiple Precision Library (GMP), the MPFR
|
||
|
|
library and the MPC library are known to be miscompiled by earlier
|
||
|
|
versions of GCC on these platforms. We therefore recommend the use
|
||
|
|
of the exact versions of these libraries listed as minimal versions
|
||
|
|
in <a href="prerequisites.html">the prerequisites</a>.
|
||
|
|
|
||
|
|
<p><hr /><a name="sparc_002dsun_002dsolaris2"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC58"></a>sparc-sun-solaris2*</h3>
|
||
|
|
|
||
|
|
<p>When GCC is configured to use GNU binutils 2.14 or later, the binaries
|
||
|
|
produced are smaller than the ones produced using Sun's native tools;
|
||
|
|
this difference is quite significant for binaries containing debugging
|
||
|
|
information.
|
||
|
|
|
||
|
|
<p>Starting with Solaris 7, the operating system is capable of executing
|
||
|
|
64-bit SPARC V9 binaries. GCC 3.1 and later properly supports
|
||
|
|
this; the <samp><span class="option">-m64</span></samp> option enables 64-bit code generation.
|
||
|
|
However, if all you want is code tuned for the UltraSPARC CPU, you
|
||
|
|
should try the <samp><span class="option">-mtune=ultrasparc</span></samp> option instead, which produces
|
||
|
|
code that, unlike full 64-bit code, can still run on non-UltraSPARC
|
||
|
|
machines.
|
||
|
|
|
||
|
|
<p>When configuring on a Solaris 7 or later system that is running a kernel
|
||
|
|
that supports only 32-bit binaries, one must configure with
|
||
|
|
<samp><span class="option">--disable-multilib</span></samp>, since we will not be able to build the
|
||
|
|
64-bit target libraries.
|
||
|
|
|
||
|
|
<p>GCC 3.3 and GCC 3.4 trigger code generation bugs in earlier versions of
|
||
|
|
the GNU compiler (especially GCC 3.0.x versions), which lead to the
|
||
|
|
miscompilation of the stage1 compiler and the subsequent failure of the
|
||
|
|
bootstrap process. A workaround is to use GCC 3.2.3 as an intermediary
|
||
|
|
stage, i.e. to bootstrap that compiler with the base compiler and then
|
||
|
|
use it to bootstrap the final compiler.
|
||
|
|
|
||
|
|
<p>GCC 3.4 triggers a code generation bug in versions 5.4 (Sun ONE Studio 7)
|
||
|
|
and 5.5 (Sun ONE Studio 8) of the Sun compiler, which causes a bootstrap
|
||
|
|
failure in form of a miscompilation of the stage1 compiler by the Sun
|
||
|
|
compiler. This is Sun bug 4974440. This is fixed with patch 112760-07.
|
||
|
|
|
||
|
|
<p>GCC 3.4 changed the default debugging format from Stabs to DWARF-2 for
|
||
|
|
32-bit code on Solaris 7 and later. If you use the Sun assembler, this
|
||
|
|
change apparently runs afoul of Sun bug 4910101 (which is referenced as
|
||
|
|
an x86-only problem by Sun, probably because they do not use DWARF-2).
|
||
|
|
A symptom of the problem is that you cannot compile C++ programs like
|
||
|
|
<samp><span class="command">groff</span></samp> 1.19.1 without getting messages similar to the following:
|
||
|
|
|
||
|
|
<pre class="smallexample"> ld: warning: relocation error: R_SPARC_UA32: ...
|
||
|
|
external symbolic relocation against non-allocatable section
|
||
|
|
.debug_info cannot be processed at runtime: relocation ignored.
|
||
|
|
</pre>
|
||
|
|
<p class="noindent">To work around this problem, compile with <samp><span class="option">-gstabs+</span></samp> instead of
|
||
|
|
plain <samp><span class="option">-g</span></samp>.
|
||
|
|
|
||
|
|
<p>When configuring the GNU Multiple Precision Library (GMP), the MPFR
|
||
|
|
library or the MPC library on a Solaris 7 or later system, the canonical
|
||
|
|
target triplet must be specified as the <samp><span class="command">build</span></samp> parameter on the
|
||
|
|
configure line. This target triplet can be obtained by invoking <samp><span class="command">./config.guess</span></samp> in the toplevel source directory of GCC (and
|
||
|
|
not that of GMP or MPFR or MPC). For example on a Solaris 9 system:
|
||
|
|
|
||
|
|
<pre class="smallexample"> % ./configure --build=sparc-sun-solaris2.9 --prefix=xxx
|
||
|
|
</pre>
|
||
|
|
<p><hr /><a name="sparc_002dsun_002dsolaris210"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC59"></a>sparc-sun-solaris2.10</h3>
|
||
|
|
|
||
|
|
<p>There is a bug in older versions of the Sun assembler which breaks
|
||
|
|
thread-local storage (TLS). A typical error message is
|
||
|
|
|
||
|
|
<pre class="smallexample"> ld: fatal: relocation error: R_SPARC_TLS_LE_HIX22: file /var/tmp//ccamPA1v.o:
|
||
|
|
symbol <unknown>: bad symbol type SECT: symbol type must be TLS
|
||
|
|
</pre>
|
||
|
|
<p class="noindent">This bug is fixed in Sun patch 118683-03 or later.
|
||
|
|
|
||
|
|
<p><hr /><a name="sparc_002dx_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC60"></a>sparc-*-linux*</h3>
|
||
|
|
|
||
|
|
<p>GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4
|
||
|
|
or newer on this platform. All earlier binutils and glibc
|
||
|
|
releases mishandled unaligned relocations on <code>sparc-*-*</code> targets.
|
||
|
|
|
||
|
|
<p><hr /><a name="sparc64_002dx_002dsolaris2"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC61"></a>sparc64-*-solaris2*</h3>
|
||
|
|
|
||
|
|
<p>When configuring the GNU Multiple Precision Library (GMP), the MPFR
|
||
|
|
library or the MPC library, the canonical target triplet must be specified
|
||
|
|
as the <samp><span class="command">build</span></samp> parameter on the configure line. For example
|
||
|
|
on a Solaris 9 system:
|
||
|
|
|
||
|
|
<pre class="smallexample"> % ./configure --build=sparc64-sun-solaris2.9 --prefix=xxx
|
||
|
|
</pre>
|
||
|
|
<p>The following compiler flags must be specified in the configure
|
||
|
|
step in order to bootstrap this target with the Sun compiler:
|
||
|
|
|
||
|
|
<pre class="smallexample"> % CC="cc -xarch=v9 -xildoff" <var>srcdir</var>/configure [<var>options</var>] [<var>target</var>]
|
||
|
|
</pre>
|
||
|
|
<p class="noindent"><samp><span class="option">-xarch=v9</span></samp> specifies the SPARC-V9 architecture to the Sun toolchain
|
||
|
|
and <samp><span class="option">-xildoff</span></samp> turns off the incremental linker.
|
||
|
|
|
||
|
|
<p><hr /><a name="sparcv9_002dx_002dsolaris2"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC62"></a>sparcv9-*-solaris2*</h3>
|
||
|
|
|
||
|
|
<p>This is a synonym for ‘<samp><span class="samp">sparc64-*-solaris2*</span></samp>’.
|
||
|
|
|
||
|
|
<p><hr /><a name="c6x_002dx_002dx"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC63"></a>c6x-*-*</h3>
|
||
|
|
|
||
|
|
<p>The C6X family of processors. This port requires binutils-2.22 or newer.
|
||
|
|
|
||
|
|
<p><hr /><a name="tilegx_002d_002a_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC64"></a>tilegx-*-linux*</h3>
|
||
|
|
|
||
|
|
<p>The TILE-Gx processor in little endian mode, running GNU/Linux. This
|
||
|
|
port requires binutils-2.22 or newer.
|
||
|
|
|
||
|
|
<p><hr /><a name="tilegxbe_002d_002a_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC65"></a>tilegxbe-*-linux*</h3>
|
||
|
|
|
||
|
|
<p>The TILE-Gx processor in big endian mode, running GNU/Linux. This
|
||
|
|
port requires binutils-2.23 or newer.
|
||
|
|
|
||
|
|
<p><hr /><a name="tilepro_002d_002a_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC66"></a>tilepro-*-linux*</h3>
|
||
|
|
|
||
|
|
<p>The TILEPro processor running GNU/Linux. This port requires
|
||
|
|
binutils-2.22 or newer.
|
||
|
|
|
||
|
|
<p><hr /><a name="visium_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC67"></a>visium-*-elf</h3>
|
||
|
|
|
||
|
|
<p>CDS VISIUMcore processor.
|
||
|
|
This configuration is intended for embedded systems.
|
||
|
|
|
||
|
|
<p><hr /><a name="x_002dx_002dvxworks"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC68"></a>*-*-vxworks*</h3>
|
||
|
|
|
||
|
|
<p>Support for VxWorks is in flux. At present GCC supports <em>only</em> the
|
||
|
|
very recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC.
|
||
|
|
We welcome patches for other architectures supported by VxWorks 5.5.
|
||
|
|
Support for VxWorks AE would also be welcome; we believe this is merely
|
||
|
|
a matter of writing an appropriate “configlette” (see below). We are
|
||
|
|
not interested in supporting older, a.out or COFF-based, versions of
|
||
|
|
VxWorks in GCC 3.
|
||
|
|
|
||
|
|
<p>VxWorks comes with an older version of GCC installed in
|
||
|
|
<samp><var>$WIND_BASE</var><span class="file">/host</span></samp>; we recommend you do not overwrite it.
|
||
|
|
Choose an installation <var>prefix</var> entirely outside <var>$WIND_BASE</var>.
|
||
|
|
Before running <samp><span class="command">configure</span></samp>, create the directories <samp><var>prefix</var></samp>
|
||
|
|
and <samp><var>prefix</var><span class="file">/bin</span></samp>. Link or copy the appropriate assembler,
|
||
|
|
linker, etc. into <samp><var>prefix</var><span class="file">/bin</span></samp>, and set your <var>PATH</var> to
|
||
|
|
include that directory while running both <samp><span class="command">configure</span></samp> and
|
||
|
|
<samp><span class="command">make</span></samp>.
|
||
|
|
|
||
|
|
<p>You must give <samp><span class="command">configure</span></samp> the
|
||
|
|
<samp><span class="option">--with-headers=</span><var>$WIND_BASE</var><span class="option">/target/h</span></samp> switch so that it can
|
||
|
|
find the VxWorks system headers. Since VxWorks is a cross compilation
|
||
|
|
target only, you must also specify <samp><span class="option">--target=</span><var>target</var></samp>.
|
||
|
|
<samp><span class="command">configure</span></samp> will attempt to create the directory
|
||
|
|
<samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/sys-include</span></samp> and copy files into it;
|
||
|
|
make sure the user running <samp><span class="command">configure</span></samp> has sufficient privilege
|
||
|
|
to do so.
|
||
|
|
|
||
|
|
<p>GCC's exception handling runtime requires a special “configlette”
|
||
|
|
module, <samp><span class="file">contrib/gthr_supp_vxw_5x.c</span></samp>. Follow the instructions in
|
||
|
|
that file to add the module to your kernel build. (Future versions of
|
||
|
|
VxWorks will incorporate this module.)
|
||
|
|
|
||
|
|
<p><hr /><a name="x86_002d64_002dx_002dx"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC69"></a>x86_64-*-*, amd64-*-*</h3>
|
||
|
|
|
||
|
|
<p>GCC supports the x86-64 architecture implemented by the AMD64 processor
|
||
|
|
(amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD.
|
||
|
|
On GNU/Linux the default is a bi-arch compiler which is able to generate
|
||
|
|
both 64-bit x86-64 and 32-bit x86 code (via the <samp><span class="option">-m32</span></samp> switch).
|
||
|
|
|
||
|
|
<p><hr /><a name="x86_002d64_002dx_002dsolaris210"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC70"></a>x86_64-*-solaris2.1[0-9]*</h3>
|
||
|
|
|
||
|
|
<p>GCC also supports the x86-64 architecture implemented by the AMD64
|
||
|
|
processor (‘<samp><span class="samp">amd64-*-*</span></samp>’ is an alias for ‘<samp><span class="samp">x86_64-*-*</span></samp>’) on
|
||
|
|
Solaris 10 or later. Unlike other systems, without special options a
|
||
|
|
bi-arch compiler is built which generates 32-bit code by default, but
|
||
|
|
can generate 64-bit x86-64 code with the <samp><span class="option">-m64</span></samp> switch. Since
|
||
|
|
GCC 4.7, there is also configuration that defaults to 64-bit code, but
|
||
|
|
can generate 32-bit code with <samp><span class="option">-m32</span></samp>. To configure and build
|
||
|
|
this way, you have to provide all support libraries like <samp><span class="file">libgmp</span></samp>
|
||
|
|
as 64-bit code, configure with <samp><span class="option">--target=x86_64-pc-solaris2.1x</span></samp>
|
||
|
|
and ‘<samp><span class="samp">CC=gcc -m64</span></samp>’.
|
||
|
|
|
||
|
|
<p><hr /><a name="xtensa_002dx_002delf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC71"></a>xtensa*-*-elf</h3>
|
||
|
|
|
||
|
|
<p>This target is intended for embedded Xtensa systems using the
|
||
|
|
‘<samp><span class="samp">newlib</span></samp>’ C library. It uses ELF but does not support shared
|
||
|
|
objects. Designed-defined instructions specified via the
|
||
|
|
Tensilica Instruction Extension (TIE) language are only supported
|
||
|
|
through inline assembly.
|
||
|
|
|
||
|
|
<p>The Xtensa configuration information must be specified prior to
|
||
|
|
building GCC. The <samp><span class="file">include/xtensa-config.h</span></samp> header
|
||
|
|
file contains the configuration information. If you created your
|
||
|
|
own Xtensa configuration with the Xtensa Processor Generator, the
|
||
|
|
downloaded files include a customized copy of this header file,
|
||
|
|
which you can use to replace the default header file.
|
||
|
|
|
||
|
|
<p><hr /><a name="xtensa_002dx_002dlinux"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC72"></a>xtensa*-*-linux*</h3>
|
||
|
|
|
||
|
|
<p>This target is for Xtensa systems running GNU/Linux. It supports ELF
|
||
|
|
shared objects and the GNU C library (glibc). It also generates
|
||
|
|
position-independent code (PIC) regardless of whether the
|
||
|
|
<samp><span class="option">-fpic</span></samp> or <samp><span class="option">-fPIC</span></samp> options are used. In other
|
||
|
|
respects, this target is the same as the
|
||
|
|
<a href="#xtensa*-*-elf">‘<samp><span class="samp">xtensa*-*-elf</span></samp>’</a> target.
|
||
|
|
|
||
|
|
<p><hr /><a name="windows"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC73"></a>Microsoft Windows</h3>
|
||
|
|
|
||
|
|
<h4 class="subheading"><a name="TOC74"></a>Intel 16-bit versions</h4>
|
||
|
|
|
||
|
|
<p>The 16-bit versions of Microsoft Windows, such as Windows 3.1, are not
|
||
|
|
supported.
|
||
|
|
|
||
|
|
<p>However, the 32-bit port has limited support for Microsoft
|
||
|
|
Windows 3.11 in the Win32s environment, as a target only. See below.
|
||
|
|
|
||
|
|
<h4 class="subheading"><a name="TOC75"></a>Intel 32-bit versions</h4>
|
||
|
|
|
||
|
|
<p>The 32-bit versions of Windows, including Windows 95, Windows NT, Windows
|
||
|
|
XP, and Windows Vista, are supported by several different target
|
||
|
|
platforms. These targets differ in which Windows subsystem they target
|
||
|
|
and which C libraries are used.
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li>Cygwin <a href="#x-x-cygwin">*-*-cygwin</a>: Cygwin provides a user-space
|
||
|
|
Linux API emulation layer in the Win32 subsystem.
|
||
|
|
<li>Interix <a href="#x-x-interix">*-*-interix</a>: The Interix subsystem
|
||
|
|
provides native support for POSIX.
|
||
|
|
<li>MinGW <a href="#x-x-mingw32">*-*-mingw32</a>: MinGW is a native GCC port for
|
||
|
|
the Win32 subsystem that provides a subset of POSIX.
|
||
|
|
<li>MKS i386-pc-mks: NuTCracker from MKS. See
|
||
|
|
<a href="http://www.mkssoftware.com/">http://www.mkssoftware.com/</a> for more information.
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<h4 class="subheading"><a name="TOC76"></a>Intel 64-bit versions</h4>
|
||
|
|
|
||
|
|
<p>GCC contains support for x86-64 using the mingw-w64
|
||
|
|
runtime library, available from <a href="http://mingw-w64.sourceforge.net/">http://mingw-w64.sourceforge.net/</a>.
|
||
|
|
This library should be used with the target triple x86_64-pc-mingw32.
|
||
|
|
|
||
|
|
<p>Presently Windows for Itanium is not supported.
|
||
|
|
|
||
|
|
<h4 class="subheading"><a name="TOC77"></a>Windows CE</h4>
|
||
|
|
|
||
|
|
<p>Windows CE is supported as a target only on Hitachi
|
||
|
|
SuperH (sh-wince-pe), and MIPS (mips-wince-pe).
|
||
|
|
|
||
|
|
<h4 class="subheading"><a name="TOC78"></a>Other Windows Platforms</h4>
|
||
|
|
|
||
|
|
<p>GCC no longer supports Windows NT on the Alpha or PowerPC.
|
||
|
|
|
||
|
|
<p>GCC no longer supports the Windows POSIX subsystem. However, it does
|
||
|
|
support the Interix subsystem. See above.
|
||
|
|
|
||
|
|
<p>Old target names including *-*-winnt and *-*-windowsnt are no longer used.
|
||
|
|
|
||
|
|
<p>PW32 (i386-pc-pw32) support was never completed, and the project seems to
|
||
|
|
be inactive. See <a href="http://pw32.sourceforge.net/">http://pw32.sourceforge.net/</a> for more information.
|
||
|
|
|
||
|
|
<p>UWIN support has been removed due to a lack of maintenance.
|
||
|
|
|
||
|
|
<p><hr /><a name="x_002dx_002dcygwin"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC79"></a>*-*-cygwin</h3>
|
||
|
|
|
||
|
|
<p>Ports of GCC are included with the
|
||
|
|
<a href="http://www.cygwin.com/">Cygwin environment</a>.
|
||
|
|
|
||
|
|
<p>GCC will build under Cygwin without modification; it does not build
|
||
|
|
with Microsoft's C++ compiler and there are no plans to make it do so.
|
||
|
|
|
||
|
|
<p>The Cygwin native compiler can be configured to target any 32-bit x86
|
||
|
|
cpu architecture desired; the default is i686-pc-cygwin. It should be
|
||
|
|
used with as up-to-date a version of binutils as possible; use either
|
||
|
|
the latest official GNU binutils release in the Cygwin distribution,
|
||
|
|
or version 2.20 or above if building your own.
|
||
|
|
|
||
|
|
<p><hr /><a name="x_002dx_002dinterix"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC80"></a>*-*-interix</h3>
|
||
|
|
|
||
|
|
<p>The Interix target is used by OpenNT, Interix, Services For UNIX (SFU),
|
||
|
|
and Subsystem for UNIX-based Applications (SUA). Applications compiled
|
||
|
|
with this target run in the Interix subsystem, which is separate from
|
||
|
|
the Win32 subsystem. This target was last known to work in GCC 3.3.
|
||
|
|
|
||
|
|
<p><hr /><a name="x_002dx_002dmingw32"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC81"></a>*-*-mingw32</h3>
|
||
|
|
|
||
|
|
<p>GCC will build with and support only MinGW runtime 3.12 and later.
|
||
|
|
Earlier versions of headers are incompatible with the new default semantics
|
||
|
|
of <code>extern inline</code> in <code>-std=c99</code> and <code>-std=gnu99</code> modes.
|
||
|
|
|
||
|
|
<p><hr /><a name="older"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC82"></a>Older systems</h3>
|
||
|
|
|
||
|
|
<p>GCC contains support files for many older (1980s and early
|
||
|
|
1990s) Unix variants. For the most part, support for these systems
|
||
|
|
has not been deliberately removed, but it has not been maintained for
|
||
|
|
several years and may suffer from bitrot.
|
||
|
|
|
||
|
|
<p>Starting with GCC 3.1, each release has a list of “obsoleted” systems.
|
||
|
|
Support for these systems is still present in that release, but
|
||
|
|
<samp><span class="command">configure</span></samp> will fail unless the <samp><span class="option">--enable-obsolete</span></samp>
|
||
|
|
option is given. Unless a maintainer steps forward, support for these
|
||
|
|
systems will be removed from the next release of GCC.
|
||
|
|
|
||
|
|
<p>Support for old systems as hosts for GCC can cause problems if the
|
||
|
|
workarounds for compiler, library and operating system bugs affect the
|
||
|
|
cleanliness or maintainability of the rest of GCC. In some cases, to
|
||
|
|
bring GCC up on such a system, if still possible with current GCC, may
|
||
|
|
require first installing an old version of GCC which did work on that
|
||
|
|
system, and using it to compile a more recent GCC, to avoid bugs in the
|
||
|
|
vendor compiler. Old releases of GCC 1 and GCC 2 are available in the
|
||
|
|
<samp><span class="file">old-releases</span></samp> directory on the <a href="../mirrors.html">GCC mirror sites</a>. Header bugs may generally be avoided using
|
||
|
|
<samp><span class="command">fixincludes</span></samp>, but bugs or deficiencies in libraries and the
|
||
|
|
operating system may still cause problems.
|
||
|
|
|
||
|
|
<p>Support for older systems as targets for cross-compilation is less
|
||
|
|
problematic than support for them as hosts for GCC; if an enthusiast
|
||
|
|
wishes to make such a target work again (including resurrecting any of
|
||
|
|
the targets that never worked with GCC 2, starting from the last
|
||
|
|
version before they were removed), patches
|
||
|
|
<a href="../contribute.html">following the usual requirements</a> would be
|
||
|
|
likely to be accepted, since they should not affect the support for more
|
||
|
|
modern targets.
|
||
|
|
|
||
|
|
<p>For some systems, old versions of GNU binutils may also be useful,
|
||
|
|
and are available from <samp><span class="file">pub/binutils/old-releases</span></samp> on
|
||
|
|
<a href="http://sourceware.org/mirrors.html">sourceware.org mirror sites</a>.
|
||
|
|
|
||
|
|
<p>Some of the information on specific systems above relates to
|
||
|
|
such older systems, but much of the information
|
||
|
|
about GCC on such systems (which may no longer be applicable to
|
||
|
|
current GCC) is to be found in the GCC texinfo manual.
|
||
|
|
|
||
|
|
<p><hr /><a name="elf"></a>
|
||
|
|
|
||
|
|
<h3 class="heading"><a name="TOC83"></a>all ELF targets (SVR4, Solaris 2, etc.)</h3>
|
||
|
|
|
||
|
|
<p>C++ support is significantly better on ELF targets if you use the
|
||
|
|
<a href="./configure.html#with-gnu-ld">GNU linker</a>; duplicate copies of
|
||
|
|
inlines, vtables and template instantiations will be discarded
|
||
|
|
automatically.
|
||
|
|
|
||
|
|
<p><hr />
|
||
|
|
<p><a href="./index.html">Return to the GCC Installation page</a>
|
||
|
|
|
||
|
|
<!-- ***Old documentation****************************************************** -->
|
||
|
|
<!-- ***GFDL******************************************************************** -->
|
||
|
|
<!-- *************************************************************************** -->
|
||
|
|
<!-- Part 6 The End of the Document -->
|
||
|
|
</body></html>
|
||
|
|
|