108 lines
5.8 KiB
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108 lines
5.8 KiB
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<title>TIC6X Directives - Using as</title>
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<meta name="description" content="Using as">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="TIC6X_002dDependent.html#TIC6X_002dDependent" title="TIC6X-Dependent">
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<link rel="prev" href="TIC6X-Syntax.html#TIC6X-Syntax" title="TIC6X Syntax">
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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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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2019 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
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.
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</head>
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<body>
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<div class="node">
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<a name="TIC6X-Directives"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="TIC6X-Syntax.html#TIC6X-Syntax">TIC6X Syntax</a>,
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Up: <a rel="up" accesskey="u" href="TIC6X_002dDependent.html#TIC6X_002dDependent">TIC6X-Dependent</a>
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<hr>
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</div>
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<h4 class="subsection">9.46.3 TIC6X Directives</h4>
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<p><a name="index-machine-directives_002c-TIC6X-2362"></a><a name="index-TIC6X-machine-directives-2363"></a>
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Directives controlling the set of instructions accepted by the
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assembler have effect for instructions between the directive and any
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subsequent directive overriding it.
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<a name="index-g_t_0040code_007b_002earch_007d-directive_002c-TIC6X-2364"></a>
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<dl><dt><code>.arch </code><var>arch</var><dd>This has the same effect as <samp><span class="option">-march=</span><var>arch</var></samp>.
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<p><a name="index-g_t_0040code_007b_002ecantunwind_007d-directive_002c-TIC6X-2365"></a><br><dt><code>.cantunwind</code><dd>Prevents unwinding through the current function. No personality routine
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or exception table data is required or permitted.
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<p>If this is not specified then frame unwinding information will be
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constructed from CFI directives. see <a href="CFI-directives.html#CFI-directives">CFI directives</a>.
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<p><a name="index-g_t_0040code_007b_002ec6xabi_005fattribute_007d-directive_002c-TIC6X-2366"></a><br><dt><code>.c6xabi_attribute </code><var>tag</var><code>, </code><var>value</var><dd>Set the C6000 EABI build attribute <var>tag</var> to <var>value</var>.
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<p>The <var>tag</var> is either an attribute number or one of
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<code>Tag_ISA</code>, <code>Tag_ABI_wchar_t</code>,
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<code>Tag_ABI_stack_align_needed</code>,
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<code>Tag_ABI_stack_align_preserved</code>, <code>Tag_ABI_DSBT</code>,
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<code>Tag_ABI_PID</code>, <code>Tag_ABI_PIC</code>,
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<code>TAG_ABI_array_object_alignment</code>,
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<code>TAG_ABI_array_object_align_expected</code>,
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<code>Tag_ABI_compatibility</code> and <code>Tag_ABI_conformance</code>. The
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<var>value</var> is either a <code>number</code>, <code>"string"</code>, or
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<code>number, "string"</code> depending on the tag.
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<p><a name="index-g_t_0040code_007b_002eehtype_007d-directive_002c-TIC6X-2367"></a><br><dt><code>.ehtype </code><var>symbol</var><dd>Output an exception type table reference to <var>symbol</var>.
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<p><a name="index-g_t_0040code_007b_002eendp_007d-directive_002c-TIC6X-2368"></a><br><dt><code>.endp</code><dd>Marks the end of and exception table or function. If preceded by a
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<code>.handlerdata</code> directive then this also switched back to the previous
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text section.
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<p><a name="index-g_t_0040code_007b_002ehandlerdata_007d-directive_002c-TIC6X-2369"></a><br><dt><code>.handlerdata</code><dd>Marks the end of the current function, and the start of the exception table
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entry for that function. Anything between this directive and the
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<code>.endp</code> directive will be added to the exception table entry.
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<p>Must be preceded by a CFI block containing a <code>.cfi_lsda</code> directive.
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<p><a name="index-g_t_0040code_007b_002enocmp_007d-directive_002c-TIC6X-2370"></a><br><dt><code>.nocmp</code><dd>Disallow use of C64x+ compact instructions in the current text
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section.
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<p><a name="index-g_t_0040code_007b_002epersonalityindex_007d-directive_002c-TIC6X-2371"></a><br><dt><code>.personalityindex </code><var>index</var><dd>Sets the personality routine for the current function to the ABI specified
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compact routine number <var>index</var>
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<p><a name="index-g_t_0040code_007b_002epersonality_007d-directive_002c-TIC6X-2372"></a><br><dt><code>.personality </code><var>name</var><dd>Sets the personality routine for the current function to <var>name</var>.
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<p><a name="index-g_t_0040code_007b_002escomm_007d-directive_002c-TIC6X-2373"></a><br><dt><code>.scomm </code><var>symbol</var><code>, </code><var>size</var><code>, </code><var>align</var><dd>Like <code>.comm</code>, creating a common symbol <var>symbol</var> with size <var>size</var>
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and alignment <var>align</var>, but unlike when using <code>.comm</code>, this symbol
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will be placed into the small BSS section by the linker.
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</dl>
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<!-- Copyright (C) 2011-2019 Free Software Foundation, Inc. -->
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<!-- This is part of the GAS manual. -->
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<!-- For copying conditions, see the file as.texinfo. -->
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<!-- man end -->
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</body></html>
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