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<a name="MCore-Options-1"></a>
<h4 class="subsection">3.19.26 MCore Options</h4>
<a name="index-MCore-options"></a>

<p>These are the &lsquo;<samp>-m</samp>&rsquo; options defined for the Motorola M*Core
processors.
</p>
<dl compact="compact">
<dt><code>-mhardlit</code></dt>
<dt><code>-mno-hardlit</code></dt>
<dd><a name="index-mhardlit"></a>
<a name="index-mno_002dhardlit"></a>
<p>Inline constants into the code stream if it can be done in two
instructions or less.
</p>
</dd>
<dt><code>-mdiv</code></dt>
<dt><code>-mno-div</code></dt>
<dd><a name="index-mdiv-2"></a>
<a name="index-mno_002ddiv-1"></a>
<p>Use the divide instruction.  (Enabled by default).
</p>
</dd>
<dt><code>-mrelax-immediate</code></dt>
<dt><code>-mno-relax-immediate</code></dt>
<dd><a name="index-mrelax_002dimmediate"></a>
<a name="index-mno_002drelax_002dimmediate"></a>
<p>Allow arbitrary-sized immediates in bit operations.
</p>
</dd>
<dt><code>-mwide-bitfields</code></dt>
<dt><code>-mno-wide-bitfields</code></dt>
<dd><a name="index-mwide_002dbitfields"></a>
<a name="index-mno_002dwide_002dbitfields"></a>
<p>Always treat bit-fields as <code>int</code>-sized.
</p>
</dd>
<dt><code>-m4byte-functions</code></dt>
<dt><code>-mno-4byte-functions</code></dt>
<dd><a name="index-m4byte_002dfunctions"></a>
<a name="index-mno_002d4byte_002dfunctions"></a>
<p>Force all functions to be aligned to a 4-byte boundary.
</p>
</dd>
<dt><code>-mcallgraph-data</code></dt>
<dt><code>-mno-callgraph-data</code></dt>
<dd><a name="index-mcallgraph_002ddata"></a>
<a name="index-mno_002dcallgraph_002ddata"></a>
<p>Emit callgraph information.
</p>
</dd>
<dt><code>-mslow-bytes</code></dt>
<dt><code>-mno-slow-bytes</code></dt>
<dd><a name="index-mslow_002dbytes"></a>
<a name="index-mno_002dslow_002dbytes"></a>
<p>Prefer word access when reading byte quantities.
</p>
</dd>
<dt><code>-mlittle-endian</code></dt>
<dt><code>-mbig-endian</code></dt>
<dd><a name="index-mlittle_002dendian-7"></a>
<a name="index-mbig_002dendian-7"></a>
<p>Generate code for a little-endian target.
</p>
</dd>
<dt><code>-m210</code></dt>
<dt><code>-m340</code></dt>
<dd><a name="index-m210"></a>
<a name="index-m340"></a>
<p>Generate code for the 210 processor.
</p>
</dd>
<dt><code>-mno-lsim</code></dt>
<dd><a name="index-mno_002dlsim-1"></a>
<p>Assume that runtime support has been provided and so omit the
simulator library (<samp>libsim.a)</samp> from the linker command line.
</p>
</dd>
<dt><code>-mstack-increment=<var>size</var></code></dt>
<dd><a name="index-mstack_002dincrement"></a>
<p>Set the maximum amount for a single stack increment operation.  Large
values can increase the speed of programs that contain functions
that need a large amount of stack space, but they can also trigger a
segmentation fault if the stack is extended too much.  The default
value is 0x1000.
</p>
</dd>
</dl>


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