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<a name="C6X-Options-1"></a>
<h4 class="subsection">3.19.8 C6X Options</h4>
<a name="index-C6X-Options"></a>

<dl compact="compact">
<dt><code>-march=<var>name</var></code></dt>
<dd><a name="index-march-3"></a>
<p>This specifies the name of the target architecture.  GCC uses this
name to determine what kind of instructions it can emit when generating
assembly code.  Permissible names are: &lsquo;<samp>c62x</samp>&rsquo;,
&lsquo;<samp>c64x</samp>&rsquo;, &lsquo;<samp>c64x+</samp>&rsquo;, &lsquo;<samp>c67x</samp>&rsquo;, &lsquo;<samp>c67x+</samp>&rsquo;, &lsquo;<samp>c674x</samp>&rsquo;.
</p>
</dd>
<dt><code>-mbig-endian</code></dt>
<dd><a name="index-mbig_002dendian-3"></a>
<p>Generate code for a big-endian target.
</p>
</dd>
<dt><code>-mlittle-endian</code></dt>
<dd><a name="index-mlittle_002dendian-3"></a>
<p>Generate code for a little-endian target.  This is the default.
</p>
</dd>
<dt><code>-msim</code></dt>
<dd><a name="index-msim-1"></a>
<p>Choose startup files and linker script suitable for the simulator.
</p>
</dd>
<dt><code>-msdata=default</code></dt>
<dd><a name="index-msdata_003ddefault"></a>
<p>Put small global and static data in the <code>.neardata</code> section,
which is pointed to by register <code>B14</code>.  Put small uninitialized
global and static data in the <code>.bss</code> section, which is adjacent
to the <code>.neardata</code> section.  Put small read-only data into the
<code>.rodata</code> section.  The corresponding sections used for large
pieces of data are <code>.fardata</code>, <code>.far</code> and <code>.const</code>.
</p>
</dd>
<dt><code>-msdata=all</code></dt>
<dd><a name="index-msdata_003dall"></a>
<p>Put all data, not just small objects, into the sections reserved for
small data, and use addressing relative to the <code>B14</code> register to
access them.
</p>
</dd>
<dt><code>-msdata=none</code></dt>
<dd><a name="index-msdata_003dnone"></a>
<p>Make no use of the sections reserved for small data, and use absolute
addresses to access all data.  Put all initialized global and static
data in the <code>.fardata</code> section, and all uninitialized data in the
<code>.far</code> section.  Put all constant data into the <code>.const</code>
section.
</p></dd>
</dl>


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