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| <h4 class="subsection">9.30.1 RX Options</h4> |
| |
| <p><a name="index-options_002c-RX-1499"></a><a name="index-RX-options-1500"></a> |
| The Renesas RX port of <code>as</code> has a few target specfic |
| command line options: |
| |
| |
| <a name="index-g_t_0040samp_007b_002dm32bit_002ddoubles_007d-1501"></a> |
| <dl><dt><code>-m32bit-doubles</code><dd>This option controls the ABI and indicates to use a 32-bit float ABI. |
| It has no effect on the assembled instructions, but it does influence |
| the behaviour of the ‘<samp><span class="samp">.double</span></samp>’ pseudo-op. |
| This is the default. |
| |
| <p><a name="index-g_t_0040samp_007b_002dm64bit_002ddoubles_007d-1502"></a><br><dt><code>-m64bit-doubles</code><dd>This option controls the ABI and indicates to use a 64-bit float ABI. |
| It has no effect on the assembled instructions, but it does influence |
| the behaviour of the ‘<samp><span class="samp">.double</span></samp>’ pseudo-op. |
| |
| <p><a name="index-g_t_0040samp_007b_002dmbig_002dendian_007d-1503"></a><br><dt><code>-mbig-endian</code><dd>This option controls the ABI and indicates to use a big-endian data |
| ABI. It has no effect on the assembled instructions, but it does |
| influence the behaviour of the ‘<samp><span class="samp">.short</span></samp>’, ‘<samp><span class="samp">.hword</span></samp>’, ‘<samp><span class="samp">.int</span></samp>’, |
| ‘<samp><span class="samp">.word</span></samp>’, ‘<samp><span class="samp">.long</span></samp>’, ‘<samp><span class="samp">.quad</span></samp>’ and ‘<samp><span class="samp">.octa</span></samp>’ pseudo-ops. |
| |
| <p><a name="index-g_t_0040samp_007b_002dmlittle_002dendian_007d-1504"></a><br><dt><code>-mlittle-endian</code><dd>This option controls the ABI and indicates to use a little-endian data |
| ABI. It has no effect on the assembled instructions, but it does |
| influence the behaviour of the ‘<samp><span class="samp">.short</span></samp>’, ‘<samp><span class="samp">.hword</span></samp>’, ‘<samp><span class="samp">.int</span></samp>’, |
| ‘<samp><span class="samp">.word</span></samp>’, ‘<samp><span class="samp">.long</span></samp>’, ‘<samp><span class="samp">.quad</span></samp>’ and ‘<samp><span class="samp">.octa</span></samp>’ pseudo-ops. |
| This is the default. |
| |
| <p><a name="index-g_t_0040samp_007b_002dmuse_002dconventional_002dsection_002dnames_007d-1505"></a><br><dt><code>-muse-conventional-section-names</code><dd>This option controls the default names given to the code (.text), |
| initialised data (.data) and uninitialised data sections (.bss). |
| |
| <p><a name="index-g_t_0040samp_007b_002dmuse_002drenesas_002dsection_002dnames_007d-1506"></a><br><dt><code>-muse-renesas-section-names</code><dd>This option controls the default names given to the code (.P), |
| initialised data (.D_1) and uninitialised data sections (.B_1). |
| This is the default. |
| |
| <p><a name="index-g_t_0040samp_007b_002dmsmall_002ddata_002dlimit_007d-1507"></a><br><dt><code>-msmall-data-limit</code><dd>This option tells the assembler that the small data limit feature of |
| the RX port of GCC is being used. This results in the assembler |
| generating an undefined reference to a symbol called __gp for use by |
| the relocations that are needed to support the small data limit |
| feature. This option is not enabled by default as it would otherwise |
| pollute the symbol table. |
| |
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