169 lines
7.0 KiB
HTML
169 lines
7.0 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- Copyright (C) 1988-2016 Free Software Foundation, Inc.
|
|
|
|
Permission is granted to copy, distribute and/or modify this document
|
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
|
any later version published by the Free Software Foundation; with the
|
|
Invariant Sections being "Funding Free Software", the Front-Cover
|
|
Texts being (a) (see below), and with the Back-Cover Texts being (b)
|
|
(see below). A copy of the license is included in the section entitled
|
|
"GNU Free Documentation License".
|
|
|
|
(a) The FSF's Front-Cover Text is:
|
|
|
|
A GNU Manual
|
|
|
|
(b) The FSF's Back-Cover Text is:
|
|
|
|
You have freedom to copy and modify this GNU Manual, like GNU
|
|
software. Copies published by the Free Software Foundation raise
|
|
funds for GNU development. -->
|
|
<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<title>GNU Compiler Collection (GCC) Internals: Host Misc</title>
|
|
|
|
<meta name="description" content="GNU Compiler Collection (GCC) Internals: Host Misc">
|
|
<meta name="keywords" content="GNU Compiler Collection (GCC) Internals: Host Misc">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<link href="index.html#Top" rel="start" title="Top">
|
|
<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Host-Config.html#Host-Config" rel="up" title="Host Config">
|
|
<link href="Fragments.html#Fragments" rel="next" title="Fragments">
|
|
<link href="Filesystem.html#Filesystem" rel="prev" title="Filesystem">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.smallquotation {font-size: smaller}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.indentedblock {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
div.smalldisplay {margin-left: 3.2em}
|
|
div.smallexample {margin-left: 3.2em}
|
|
div.smallindentedblock {margin-left: 3.2em; font-size: smaller}
|
|
div.smalllisp {margin-left: 3.2em}
|
|
kbd {font-style:oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
|
pre.smallexample {font-size: smaller}
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
|
pre.smalllisp {font-size: smaller}
|
|
span.nocodebreak {white-space:nowrap}
|
|
span.nolinebreak {white-space:nowrap}
|
|
span.roman {font-family:serif; font-weight:normal}
|
|
span.sansserif {font-family:sans-serif; font-weight:normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
|
|
<a name="Host-Misc"></a>
|
|
<div class="header">
|
|
<p>
|
|
Previous: <a href="Filesystem.html#Filesystem" accesskey="p" rel="prev">Filesystem</a>, Up: <a href="Host-Config.html#Host-Config" accesskey="u" rel="up">Host Config</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<a name="Host-Misc-1"></a>
|
|
<h3 class="section">18.3 Host Misc</h3>
|
|
<a name="index-configuration-file-1"></a>
|
|
<a name="index-xm_002dmachine_002eh-1"></a>
|
|
|
|
<dl compact="compact">
|
|
<dt><code>FATAL_EXIT_CODE</code>
|
|
<a name="index-FATAL_005fEXIT_005fCODE"></a>
|
|
</dt>
|
|
<dd><p>A C expression for the status code to be returned when the compiler
|
|
exits after serious errors. The default is the system-provided macro
|
|
‘<samp>EXIT_FAILURE</samp>’, or ‘<samp>1</samp>’ if the system doesn’t define that
|
|
macro. Define this macro only if these defaults are incorrect.
|
|
</p>
|
|
</dd>
|
|
<dt><code>SUCCESS_EXIT_CODE</code>
|
|
<a name="index-SUCCESS_005fEXIT_005fCODE"></a>
|
|
</dt>
|
|
<dd><p>A C expression for the status code to be returned when the compiler
|
|
exits without serious errors. (Warnings are not serious errors.) The
|
|
default is the system-provided macro ‘<samp>EXIT_SUCCESS</samp>’, or ‘<samp>0</samp>’ if
|
|
the system doesn’t define that macro. Define this macro only if these
|
|
defaults are incorrect.
|
|
</p>
|
|
</dd>
|
|
<dt><code>USE_C_ALLOCA</code>
|
|
<a name="index-USE_005fC_005fALLOCA"></a>
|
|
</dt>
|
|
<dd><p>Define this macro if GCC should use the C implementation of <code>alloca</code>
|
|
provided by <samp>libiberty.a</samp>. This only affects how some parts of the
|
|
compiler itself allocate memory. It does not change code generation.
|
|
</p>
|
|
<p>When GCC is built with a compiler other than itself, the C <code>alloca</code>
|
|
is always used. This is because most other implementations have serious
|
|
bugs. You should define this macro only on a system where no
|
|
stack-based <code>alloca</code> can possibly work. For instance, if a system
|
|
has a small limit on the size of the stack, GCC’s builtin <code>alloca</code>
|
|
will not work reliably.
|
|
</p>
|
|
</dd>
|
|
<dt><code>COLLECT2_HOST_INITIALIZATION</code>
|
|
<a name="index-COLLECT2_005fHOST_005fINITIALIZATION"></a>
|
|
</dt>
|
|
<dd><p>If defined, a C statement (sans semicolon) that performs host-dependent
|
|
initialization when <code>collect2</code> is being initialized.
|
|
</p>
|
|
</dd>
|
|
<dt><code>GCC_DRIVER_HOST_INITIALIZATION</code>
|
|
<a name="index-GCC_005fDRIVER_005fHOST_005fINITIALIZATION"></a>
|
|
</dt>
|
|
<dd><p>If defined, a C statement (sans semicolon) that performs host-dependent
|
|
initialization when a compilation driver is being initialized.
|
|
</p>
|
|
</dd>
|
|
<dt><code>HOST_LONG_LONG_FORMAT</code>
|
|
<a name="index-HOST_005fLONG_005fLONG_005fFORMAT"></a>
|
|
</dt>
|
|
<dd><p>If defined, the string used to indicate an argument of type <code>long
|
|
long</code> to functions like <code>printf</code>. The default value is
|
|
<code>"ll"</code>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>HOST_LONG_FORMAT</code>
|
|
<a name="index-HOST_005fLONG_005fFORMAT"></a>
|
|
</dt>
|
|
<dd><p>If defined, the string used to indicate an argument of type <code>long</code>
|
|
to functions like <code>printf</code>. The default value is <code>"l"</code>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>HOST_PTR_PRINTF</code>
|
|
<a name="index-HOST_005fPTR_005fPRINTF"></a>
|
|
</dt>
|
|
<dd><p>If defined, the string used to indicate an argument of type <code>void *</code>
|
|
to functions like <code>printf</code>. The default value is <code>"%p"</code>.
|
|
</p></dd>
|
|
</dl>
|
|
|
|
<p>In addition, if <code>configure</code> generates an incorrect definition of
|
|
any of the macros in <samp>auto-host.h</samp>, you can override that
|
|
definition in a host configuration header. If you need to do this,
|
|
first see if it is possible to fix <code>configure</code>.
|
|
</p>
|
|
<hr>
|
|
<div class="header">
|
|
<p>
|
|
Previous: <a href="Filesystem.html#Filesystem" accesskey="p" rel="prev">Filesystem</a>, Up: <a href="Host-Config.html#Host-Config" accesskey="u" rel="up">Host Config</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|