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| <h4 class="subsection">3.17.6 C6X Options</h4> |
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| <p><a name="index-C6X-Options-1195"></a> |
| <dl> |
| <dt><code>-march=</code><var>name</var><dd><a name="index-march-1196"></a>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: ‘<samp><span class="samp">c62x</span></samp>’, |
| ‘<samp><span class="samp">c64x</span></samp>’, ‘<samp><span class="samp">c64x+</span></samp>’, ‘<samp><span class="samp">c67x</span></samp>’, ‘<samp><span class="samp">c67x+</span></samp>’, ‘<samp><span class="samp">c674x</span></samp>’. |
| |
| <br><dt><code>-mbig-endian</code><dd><a name="index-mbig_002dendian-1197"></a>Generate code for a big-endian target. |
| |
| <br><dt><code>-mlittle-endian</code><dd><a name="index-mlittle_002dendian-1198"></a>Generate code for a little-endian target. This is the default. |
| |
| <br><dt><code>-msim</code><dd><a name="index-msim-1199"></a>Choose startup files and linker script suitable for the simulator. |
| |
| <br><dt><code>-msdata=default</code><dd><a name="index-msdata_003ddefault-1200"></a>Put small global and static data in the ‘<samp><span class="samp">.neardata</span></samp>’ section, |
| which is pointed to by register <code>B14</code>. Put small uninitialized |
| global and static data in the ‘<samp><span class="samp">.bss</span></samp>’ section, which is adjacent |
| to the ‘<samp><span class="samp">.neardata</span></samp>’ section. Put small read-only data into the |
| ‘<samp><span class="samp">.rodata</span></samp>’ section. The corresponding sections used for large |
| pieces of data are ‘<samp><span class="samp">.fardata</span></samp>’, ‘<samp><span class="samp">.far</span></samp>’ and ‘<samp><span class="samp">.const</span></samp>’. |
| |
| <br><dt><code>-msdata=all</code><dd><a name="index-msdata_003dall-1201"></a>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. |
| |
| <br><dt><code>-msdata=none</code><dd><a name="index-msdata_003dnone-1202"></a>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 ‘<samp><span class="samp">.fardata</span></samp>’ section, and all uninitialized data in the |
| ‘<samp><span class="samp">.far</span></samp>’ section. Put all constant data into the ‘<samp><span class="samp">.const</span></samp>’ |
| section. |
| </dl> |
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