1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- This file documents the GNU Assembler "as". 4 5Copyright (C) 1991-2021 Free Software Foundation, Inc. 6 7Permission is granted to copy, distribute and/or modify this document 8under the terms of the GNU Free Documentation License, Version 1.3 9or any later version published by the Free Software Foundation; 10with no Invariant Sections, with no Front-Cover Texts, and with no 11Back-Cover Texts. A copy of the license is included in the 12section entitled "GNU Free Documentation License". 13 --> 14<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> 15<head> 16<title>Using as: TIC6X Directives</title> 17 18<meta name="description" content="Using as: TIC6X Directives"> 19<meta name="keywords" content="Using as: TIC6X Directives"> 20<meta name="resource-type" content="document"> 21<meta name="distribution" content="global"> 22<meta name="Generator" content="makeinfo"> 23<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 24<link href="index.html#Top" rel="start" title="Top"> 25<link href="AS-Index.html#AS-Index" rel="index" title="AS Index"> 26<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> 27<link href="TIC6X_002dDependent.html#TIC6X_002dDependent" rel="up" title="TIC6X-Dependent"> 28<link href="TILE_002dGx_002dDependent.html#TILE_002dGx_002dDependent" rel="next" title="TILE-Gx-Dependent"> 29<link href="TIC6X-Syntax.html#TIC6X-Syntax" rel="previous" title="TIC6X Syntax"> 30<style type="text/css"> 31<!-- 32a.summary-letter {text-decoration: none} 33blockquote.smallquotation {font-size: smaller} 34div.display {margin-left: 3.2em} 35div.example {margin-left: 3.2em} 36div.indentedblock {margin-left: 3.2em} 37div.lisp {margin-left: 3.2em} 38div.smalldisplay {margin-left: 3.2em} 39div.smallexample {margin-left: 3.2em} 40div.smallindentedblock {margin-left: 3.2em; font-size: smaller} 41div.smalllisp {margin-left: 3.2em} 42kbd {font-style:oblique} 43pre.display {font-family: inherit} 44pre.format {font-family: inherit} 45pre.menu-comment {font-family: serif} 46pre.menu-preformatted {font-family: serif} 47pre.smalldisplay {font-family: inherit; font-size: smaller} 48pre.smallexample {font-size: smaller} 49pre.smallformat {font-family: inherit; font-size: smaller} 50pre.smalllisp {font-size: smaller} 51span.nocodebreak {white-space:nowrap} 52span.nolinebreak {white-space:nowrap} 53span.roman {font-family:serif; font-weight:normal} 54span.sansserif {font-family:sans-serif; font-weight:normal} 55ul.no-bullet {list-style: none} 56--> 57</style> 58 59 60</head> 61 62<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> 63<a name="TIC6X-Directives"></a> 64<div class="header"> 65<p> 66Previous: <a href="TIC6X-Syntax.html#TIC6X-Syntax" accesskey="p" rel="previous">TIC6X Syntax</a>, Up: <a href="TIC6X_002dDependent.html#TIC6X_002dDependent" accesskey="u" rel="up">TIC6X-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p> 67</div> 68<hr> 69<a name="TIC6X-Directives-1"></a> 70<h4 class="subsection">9.46.3 TIC6X Directives</h4> 71 72<a name="index-machine-directives_002c-TIC6X"></a> 73<a name="index-TIC6X-machine-directives"></a> 74 75<p>Directives controlling the set of instructions accepted by the 76assembler have effect for instructions between the directive and any 77subsequent directive overriding it. 78</p> 79<dl compact="compact"> 80<dd> 81<a name="index-_002earch-directive_002c-TIC6X"></a> 82</dd> 83<dt><code>.arch <var>arch</var></code></dt> 84<dd><p>This has the same effect as <samp>-march=<var>arch</var></samp>. 85</p> 86<a name="index-_002ecantunwind-directive_002c-TIC6X"></a> 87</dd> 88<dt><code>.cantunwind</code></dt> 89<dd><p>Prevents unwinding through the current function. No personality routine 90or exception table data is required or permitted. 91</p> 92<p>If this is not specified then frame unwinding information will be 93constructed from CFI directives. see <a href="CFI-directives.html#CFI-directives">CFI directives</a>. 94</p> 95<a name="index-_002ec6xabi_005fattribute-directive_002c-TIC6X"></a> 96</dd> 97<dt><code>.c6xabi_attribute <var>tag</var>, <var>value</var></code></dt> 98<dd><p>Set the C6000 EABI build attribute <var>tag</var> to <var>value</var>. 99</p> 100<p>The <var>tag</var> is either an attribute number or one of 101<code>Tag_ISA</code>, <code>Tag_ABI_wchar_t</code>, 102<code>Tag_ABI_stack_align_needed</code>, 103<code>Tag_ABI_stack_align_preserved</code>, <code>Tag_ABI_DSBT</code>, 104<code>Tag_ABI_PID</code>, <code>Tag_ABI_PIC</code>, 105<code>TAG_ABI_array_object_alignment</code>, 106<code>TAG_ABI_array_object_align_expected</code>, 107<code>Tag_ABI_compatibility</code> and <code>Tag_ABI_conformance</code>. The 108<var>value</var> is either a <code>number</code>, <code>"string"</code>, or 109<code>number, "string"</code> depending on the tag. 110</p> 111<a name="index-_002eehtype-directive_002c-TIC6X"></a> 112</dd> 113<dt><code>.ehtype <var>symbol</var></code></dt> 114<dd><p>Output an exception type table reference to <var>symbol</var>. 115</p> 116<a name="index-_002eendp-directive_002c-TIC6X"></a> 117</dd> 118<dt><code>.endp</code></dt> 119<dd><p>Marks the end of and exception table or function. If preceded by a 120<code>.handlerdata</code> directive then this also switched back to the previous 121text section. 122</p> 123<a name="index-_002ehandlerdata-directive_002c-TIC6X"></a> 124</dd> 125<dt><code>.handlerdata</code></dt> 126<dd><p>Marks the end of the current function, and the start of the exception table 127entry for that function. Anything between this directive and the 128<code>.endp</code> directive will be added to the exception table entry. 129</p> 130<p>Must be preceded by a CFI block containing a <code>.cfi_lsda</code> directive. 131</p> 132<a name="index-_002enocmp-directive_002c-TIC6X"></a> 133</dd> 134<dt><code>.nocmp</code></dt> 135<dd><p>Disallow use of C64x+ compact instructions in the current text 136section. 137</p> 138<a name="index-_002epersonalityindex-directive_002c-TIC6X"></a> 139</dd> 140<dt><code>.personalityindex <var>index</var></code></dt> 141<dd><p>Sets the personality routine for the current function to the ABI specified 142compact routine number <var>index</var> 143</p> 144<a name="index-_002epersonality-directive_002c-TIC6X"></a> 145</dd> 146<dt><code>.personality <var>name</var></code></dt> 147<dd><p>Sets the personality routine for the current function to <var>name</var>. 148</p> 149<a name="index-_002escomm-directive_002c-TIC6X"></a> 150</dd> 151<dt><code>.scomm <var>symbol</var>, <var>size</var>, <var>align</var></code></dt> 152<dd><p>Like <code>.comm</code>, creating a common symbol <var>symbol</var> with size <var>size</var> 153and alignment <var>align</var>, but unlike when using <code>.comm</code>, this symbol 154will be placed into the small BSS section by the linker. 155</p> 156</dd> 157</dl> 158 159 160<hr> 161<div class="header"> 162<p> 163Previous: <a href="TIC6X-Syntax.html#TIC6X-Syntax" accesskey="p" rel="previous">TIC6X Syntax</a>, Up: <a href="TIC6X_002dDependent.html#TIC6X_002dDependent" accesskey="u" rel="up">TIC6X-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p> 164</div> 165 166 167 168</body> 169</html> 170