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| <a name="MCore-Options-1"></a> |
| <h4 class="subsection">3.17.24 MCore Options</h4> |
| <a name="index-MCore-options"></a> |
| |
| <p>These are the ‘<samp>-m</samp>’ 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-1"></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-5"></a> |
| <a name="index-mbig_002dendian-5"></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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