diff options
Diffstat (limited to 'share/doc/gccint/Require-Support.html')
| -rw-r--r-- | share/doc/gccint/Require-Support.html | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/share/doc/gccint/Require-Support.html b/share/doc/gccint/Require-Support.html new file mode 100644 index 0000000..0980177 --- /dev/null +++ b/share/doc/gccint/Require-Support.html @@ -0,0 +1,185 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1988-2023 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 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>GNU Compiler Collection (GCC) Internals: Require Support</title> + +<meta name="description" content="GNU Compiler Collection (GCC) Internals: Require Support"> +<meta name="keywords" content="GNU Compiler Collection (GCC) Internals: Require Support"> +<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="Test-Directives.html#Test-Directives" rel="up" title="Test Directives"> +<link href="Final-Actions.html#Final-Actions" rel="next" title="Final Actions"> +<link href="Add-Options.html#Add-Options" rel="previous" title="Add Options"> +<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="Require-Support"></a> +<div class="header"> +<p> +Next: <a href="Final-Actions.html#Final-Actions" accesskey="n" rel="next">Final Actions</a>, Previous: <a href="Add-Options.html#Add-Options" accesskey="p" rel="previous">Add Options</a>, Up: <a href="Test-Directives.html#Test-Directives" accesskey="u" rel="up">Test Directives</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="Variants-of-dg_002drequire_002dsupport"></a> +<h4 class="subsection">7.2.5 Variants of <code>dg-require-<var>support</var></code></h4> + +<p>A few of the <code>dg-require</code> directives take arguments. +</p> +<dl compact="compact"> +<dt><code>dg-require-iconv <var>codeset</var></code></dt> +<dd><p>Skip the test if the target does not support iconv. <var>codeset</var> is +the codeset to convert to. +</p> +</dd> +<dt><code>dg-require-profiling <var>profopt</var></code></dt> +<dd><p>Skip the test if the target does not support profiling with option +<var>profopt</var>. +</p> +</dd> +<dt><code>dg-require-stack-check <var>check</var></code></dt> +<dd><p>Skip the test if the target does not support the <code>-fstack-check</code> +option. If <var>check</var> is <code>""</code>, support for <code>-fstack-check</code> +is checked, for <code>-fstack-check=("<var>check</var>")</code> otherwise. +</p> +</dd> +<dt><code>dg-require-stack-size <var>size</var></code></dt> +<dd><p>Skip the test if the target does not support a stack size of <var>size</var>. +</p> +</dd> +<dt><code>dg-require-visibility <var>vis</var></code></dt> +<dd><p>Skip the test if the target does not support the <code>visibility</code> attribute. +If <var>vis</var> is <code>""</code>, support for <code>visibility("hidden")</code> is +checked, for <code>visibility("<var>vis</var>")</code> otherwise. +</p></dd> +</dl> + +<p>The original <code>dg-require</code> directives were defined before there +was support for effective-target keywords. The directives that do not +take arguments could be replaced with effective-target keywords. +</p> +<dl compact="compact"> +<dt><code>dg-require-alias ""</code></dt> +<dd><p>Skip the test if the target does not support the ‘<samp>alias</samp>’ attribute. +</p> +</dd> +<dt><code>dg-require-ascii-locale ""</code></dt> +<dd><p>Skip the test if the host does not support an ASCII locale. +</p> +</dd> +<dt><code>dg-require-compat-dfp ""</code></dt> +<dd><p>Skip this test unless both compilers in a <samp>compat</samp> testsuite +support decimal floating point. +</p> +</dd> +<dt><code>dg-require-cxa-atexit ""</code></dt> +<dd><p>Skip the test if the target does not support <code>__cxa_atexit</code>. +This is equivalent to <code>dg-require-effective-target cxa_atexit</code>. +</p> +</dd> +<dt><code>dg-require-dll ""</code></dt> +<dd><p>Skip the test if the target does not support DLL attributes. +</p> +</dd> +<dt><code>dg-require-dot ""</code></dt> +<dd><p>Skip the test if the host does not have <code>dot</code>. +</p> +</dd> +<dt><code>dg-require-fork ""</code></dt> +<dd><p>Skip the test if the target does not support <code>fork</code>. +</p> +</dd> +<dt><code>dg-require-gc-sections ""</code></dt> +<dd><p>Skip the test if the target’s linker does not support the +<code>--gc-sections</code> flags. +This is equivalent to <code>dg-require-effective-target gc-sections</code>. +</p> +</dd> +<dt><code>dg-require-host-local ""</code></dt> +<dd><p>Skip the test if the host is remote, rather than the same as the build +system. Some tests are incompatible with DejaGnu’s handling of remote +hosts, which involves copying the source file to the host and compiling +it with a relative path and "<code>-o a.out</code>". +</p> +</dd> +<dt><code>dg-require-mkfifo ""</code></dt> +<dd><p>Skip the test if the target does not support <code>mkfifo</code>. +</p> +</dd> +<dt><code>dg-require-named-sections ""</code></dt> +<dd><p>Skip the test is the target does not support named sections. +This is equivalent to <code>dg-require-effective-target named_sections</code>. +</p> +</dd> +<dt><code>dg-require-weak ""</code></dt> +<dd><p>Skip the test if the target does not support weak symbols. +</p> +</dd> +<dt><code>dg-require-weak-override ""</code></dt> +<dd><p>Skip the test if the target does not support overriding weak symbols. +</p></dd> +</dl> + +<hr> +<div class="header"> +<p> +Next: <a href="Final-Actions.html#Final-Actions" accesskey="n" rel="next">Final Actions</a>, Previous: <a href="Add-Options.html#Add-Options" accesskey="p" rel="previous">Add Options</a>, Up: <a href="Test-Directives.html#Test-Directives" accesskey="u" rel="up">Test Directives</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> |