You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
166 lines
7.5 KiB
HTML
166 lines
7.5 KiB
HTML
4 years ago
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||
|
|
<html>
|
||
|
|
<!-- Copyright (C) 1988-2018 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 6.4, http://www.gnu.org/software/texinfo/ -->
|
||
|
|
<head>
|
||
|
|
<title>NDS32 Function Attributes (Using the GNU Compiler Collection (GCC))</title>
|
||
|
|
|
||
|
|
<meta name="description" content="NDS32 Function Attributes (Using the GNU Compiler Collection (GCC))">
|
||
|
|
<meta name="keywords" content="NDS32 Function Attributes (Using the GNU Compiler Collection (GCC))">
|
||
|
|
<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="Function-Attributes.html#Function-Attributes" rel="up" title="Function Attributes">
|
||
|
|
<link href="Nios-II-Function-Attributes.html#Nios-II-Function-Attributes" rel="next" title="Nios II Function Attributes">
|
||
|
|
<link href="MSP430-Function-Attributes.html#MSP430-Function-Attributes" rel="prev" title="MSP430 Function Attributes">
|
||
|
|
<style type="text/css">
|
||
|
|
<!--
|
||
|
|
a.summary-letter {text-decoration: none}
|
||
|
|
blockquote.indentedblock {margin-right: 0em}
|
||
|
|
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
||
|
|
blockquote.smallquotation {font-size: smaller}
|
||
|
|
div.display {margin-left: 3.2em}
|
||
|
|
div.example {margin-left: 3.2em}
|
||
|
|
div.lisp {margin-left: 3.2em}
|
||
|
|
div.smalldisplay {margin-left: 3.2em}
|
||
|
|
div.smallexample {margin-left: 3.2em}
|
||
|
|
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.nolinebreak {white-space: nowrap}
|
||
|
|
span.roman {font-family: initial; font-weight: normal}
|
||
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
||
|
|
ul.no-bullet {list-style: none}
|
||
|
|
-->
|
||
|
|
</style>
|
||
|
|
|
||
|
|
|
||
|
|
</head>
|
||
|
|
|
||
|
|
<body lang="en">
|
||
|
|
<a name="NDS32-Function-Attributes"></a>
|
||
|
|
<div class="header">
|
||
|
|
<p>
|
||
|
|
Next: <a href="Nios-II-Function-Attributes.html#Nios-II-Function-Attributes" accesskey="n" rel="next">Nios II Function Attributes</a>, Previous: <a href="MSP430-Function-Attributes.html#MSP430-Function-Attributes" accesskey="p" rel="prev">MSP430 Function Attributes</a>, Up: <a href="Function-Attributes.html#Function-Attributes" accesskey="u" rel="up">Function Attributes</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="NDS32-Function-Attributes-1"></a>
|
||
|
|
<h4 class="subsection">6.31.20 NDS32 Function Attributes</h4>
|
||
|
|
|
||
|
|
<p>These function attributes are supported by the NDS32 back end:
|
||
|
|
</p>
|
||
|
|
<dl compact="compact">
|
||
|
|
<dt><code>exception</code></dt>
|
||
|
|
<dd><a name="index-exception-function-attribute"></a>
|
||
|
|
<a name="index-exception-handler-functions_002c-NDS32"></a>
|
||
|
|
<p>Use this attribute on the NDS32 target to indicate that the specified function
|
||
|
|
is an exception handler. The compiler will generate corresponding sections
|
||
|
|
for use in an exception handler.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>interrupt</code></dt>
|
||
|
|
<dd><a name="index-interrupt-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>On NDS32 target, this attribute indicates that the specified function
|
||
|
|
is an interrupt handler. The compiler generates corresponding sections
|
||
|
|
for use in an interrupt handler. You can use the following attributes
|
||
|
|
to modify the behavior:
|
||
|
|
</p><dl compact="compact">
|
||
|
|
<dt><code>nested</code></dt>
|
||
|
|
<dd><a name="index-nested-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>This interrupt service routine is interruptible.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>not_nested</code></dt>
|
||
|
|
<dd><a name="index-not_005fnested-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>This interrupt service routine is not interruptible.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>nested_ready</code></dt>
|
||
|
|
<dd><a name="index-nested_005fready-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>This interrupt service routine is interruptible after <code>PSW.GIE</code>
|
||
|
|
(global interrupt enable) is set. This allows interrupt service routine to
|
||
|
|
finish some short critical code before enabling interrupts.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>save_all</code></dt>
|
||
|
|
<dd><a name="index-save_005fall-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>The system will help save all registers into stack before entering
|
||
|
|
interrupt handler.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>partial_save</code></dt>
|
||
|
|
<dd><a name="index-partial_005fsave-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>The system will help save caller registers into stack before entering
|
||
|
|
interrupt handler.
|
||
|
|
</p></dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
</dd>
|
||
|
|
<dt><code>naked</code></dt>
|
||
|
|
<dd><a name="index-naked-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>This attribute allows the compiler to construct the
|
||
|
|
requisite function declaration, while allowing the body of the
|
||
|
|
function to be assembly code. The specified function will not have
|
||
|
|
prologue/epilogue sequences generated by the compiler. Only basic
|
||
|
|
<code>asm</code> statements can safely be included in naked functions
|
||
|
|
(see <a href="Basic-Asm.html#Basic-Asm">Basic Asm</a>). While using extended <code>asm</code> or a mixture of
|
||
|
|
basic <code>asm</code> and C code may appear to work, they cannot be
|
||
|
|
depended upon to work reliably and are not supported.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>reset</code></dt>
|
||
|
|
<dd><a name="index-reset-function-attribute_002c-NDS32"></a>
|
||
|
|
<a name="index-reset-handler-functions"></a>
|
||
|
|
<p>Use this attribute on the NDS32 target to indicate that the specified function
|
||
|
|
is a reset handler. The compiler will generate corresponding sections
|
||
|
|
for use in a reset handler. You can use the following attributes
|
||
|
|
to provide extra exception handling:
|
||
|
|
</p><dl compact="compact">
|
||
|
|
<dt><code>nmi</code></dt>
|
||
|
|
<dd><a name="index-nmi-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>Provide a user-defined function to handle NMI exception.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>warm</code></dt>
|
||
|
|
<dd><a name="index-warm-function-attribute_002c-NDS32"></a>
|
||
|
|
<p>Provide a user-defined function to handle warm reset exception.
|
||
|
|
</p></dd>
|
||
|
|
</dl>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<div class="header">
|
||
|
|
<p>
|
||
|
|
Next: <a href="Nios-II-Function-Attributes.html#Nios-II-Function-Attributes" accesskey="n" rel="next">Nios II Function Attributes</a>, Previous: <a href="MSP430-Function-Attributes.html#MSP430-Function-Attributes" accesskey="p" rel="prev">MSP430 Function Attributes</a>, Up: <a href="Function-Attributes.html#Function-Attributes" accesskey="u" rel="up">Function Attributes</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>
|