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| <h4 class="subsection">9.1.2 Options</h4> |
| |
| <p><a name="index-Alpha-options-510"></a><a name="index-options-for-Alpha-511"></a> |
| |
| <a name="index-g_t_0040code_007b_002dm_0040var_007bcpu_007d_007d-command-line-option_002c-Alpha-512"></a> |
| <dl><dt><samp><span class="option">-m</span><var>cpu</var></samp><dd>This option specifies the target processor. If an attempt is made to |
| assemble an instruction which will not execute on the target processor, |
| the assembler may either expand the instruction as a macro or issue an |
| error message. This option is equivalent to the <code>.arch</code> directive. |
| |
| <p>The following processor names are recognized: |
| <code>21064</code>, |
| <code>21064a</code>, |
| <code>21066</code>, |
| <code>21068</code>, |
| <code>21164</code>, |
| <code>21164a</code>, |
| <code>21164pc</code>, |
| <code>21264</code>, |
| <code>21264a</code>, |
| <code>21264b</code>, |
| <code>ev4</code>, |
| <code>ev5</code>, |
| <code>lca45</code>, |
| <code>ev5</code>, |
| <code>ev56</code>, |
| <code>pca56</code>, |
| <code>ev6</code>, |
| <code>ev67</code>, |
| <code>ev68</code>. |
| The special name <code>all</code> may be used to allow the assembler to accept |
| instructions valid for any Alpha processor. |
| |
| <p>In order to support existing practice in OSF/1 with respect to <code>.arch</code>, |
| and existing practice within <samp><span class="command">MILO</span></samp> (the Linux ARC bootloader), the |
| numbered processor names (e.g. 21064) enable the processor-specific PALcode |
| instructions, while the “electro-vlasic” names (e.g. <code>ev4</code>) do not. |
| |
| <p><a name="index-g_t_0040code_007b_002dmdebug_007d-command-line-option_002c-Alpha-513"></a><a name="index-g_t_0040code_007b_002dno_002dmdebug_007d-command-line-option_002c-Alpha-514"></a><br><dt><samp><span class="option">-mdebug</span></samp><dt><samp><span class="option">-no-mdebug</span></samp><dd>Enables or disables the generation of <code>.mdebug</code> encapsulation for |
| stabs directives and procedure descriptors. The default is to automatically |
| enable <code>.mdebug</code> when the first stabs directive is seen. |
| |
| <p><a name="index-g_t_0040code_007b_002drelax_007d-command-line-option_002c-Alpha-515"></a><br><dt><samp><span class="option">-relax</span></samp><dd>This option forces all relocations to be put into the object file, instead |
| of saving space and resolving some relocations at assembly time. Note that |
| this option does not propagate all symbol arithmetic into the object file, |
| because not all symbol arithmetic can be represented. However, the option |
| can still be useful in specific applications. |
| |
| <p><a name="index-g_t_0040code_007b_002dreplace_007d-command-line-option_002c-Alpha-516"></a><a name="index-g_t_0040code_007b_002dnoreplace_007d-command-line-option_002c-Alpha-517"></a><br><dt><samp><span class="option">-replace</span></samp><dt><samp><span class="option">-noreplace</span></samp><dd>Enables or disables the optimization of procedure calls, both at assemblage |
| and at link time. These options are only available for VMS targets and |
| <code>-replace</code> is the default. See section 1.4.1 of the OpenVMS Linker |
| Utility Manual. |
| |
| <p><a name="index-g_t_0040code_007b_002dg_007d-command-line-option_002c-Alpha-518"></a><br><dt><samp><span class="option">-g</span></samp><dd>This option is used when the compiler generates debug information. When |
| <samp><span class="command">gcc</span></samp> is using <samp><span class="command">mips-tfile</span></samp> to generate debug |
| information for ECOFF, local labels must be passed through to the object |
| file. Otherwise this option has no effect. |
| |
| <p><a name="index-g_t_0040code_007b_002dG_007d-command-line-option_002c-Alpha-519"></a><br><dt><samp><span class="option">-G</span><var>size</var></samp><dd>A local common symbol larger than <var>size</var> is placed in <code>.bss</code>, |
| while smaller symbols are placed in <code>.sbss</code>. |
| |
| <p><a name="index-g_t_0040code_007b_002dF_007d-command-line-option_002c-Alpha-520"></a><a name="index-g_t_0040code_007b_002d32addr_007d-command-line-option_002c-Alpha-521"></a><br><dt><samp><span class="option">-F</span></samp><dt><samp><span class="option">-32addr</span></samp><dd>These options are ignored for backward compatibility. |
| </dl> |
| |
| <p><a name="index-Alpha-Syntax-522"></a> |
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