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| <a name="RX_002dOpts"></a> |
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| Next: <a href="RX_002dModifiers.html#RX_002dModifiers" accesskey="n" rel="next">RX-Modifiers</a>, Up: <a href="RX_002dDependent.html#RX_002dDependent" accesskey="u" rel="up">RX-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p> |
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| <a name="RX-Options"></a> |
| <h4 class="subsection">9.36.1 RX Options</h4> |
| <a name="index-options_002c-RX"></a> |
| <a name="index-RX-options"></a> |
| |
| <p>The Renesas RX port of <code>as</code> has a few target specfic |
| command line options: |
| </p> |
| <dl compact="compact"> |
| <dd> |
| <a name="index-_002dm32bit_002ddoubles"></a> |
| </dd> |
| <dt><code>-m32bit-doubles</code></dt> |
| <dd><p>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>.double</samp>’ pseudo-op. |
| This is the default. |
| </p> |
| <a name="index-_002dm64bit_002ddoubles"></a> |
| </dd> |
| <dt><code>-m64bit-doubles</code></dt> |
| <dd><p>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>.double</samp>’ pseudo-op. |
| </p> |
| <a name="index-_002dmbig_002dendian"></a> |
| </dd> |
| <dt><code>-mbig-endian</code></dt> |
| <dd><p>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>.short</samp>’, ‘<samp>.hword</samp>’, ‘<samp>.int</samp>’, |
| ‘<samp>.word</samp>’, ‘<samp>.long</samp>’, ‘<samp>.quad</samp>’ and ‘<samp>.octa</samp>’ pseudo-ops. |
| </p> |
| <a name="index-_002dmlittle_002dendian"></a> |
| </dd> |
| <dt><code>-mlittle-endian</code></dt> |
| <dd><p>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>.short</samp>’, ‘<samp>.hword</samp>’, ‘<samp>.int</samp>’, |
| ‘<samp>.word</samp>’, ‘<samp>.long</samp>’, ‘<samp>.quad</samp>’ and ‘<samp>.octa</samp>’ pseudo-ops. |
| This is the default. |
| </p> |
| <a name="index-_002dmuse_002dconventional_002dsection_002dnames"></a> |
| </dd> |
| <dt><code>-muse-conventional-section-names</code></dt> |
| <dd><p>This option controls the default names given to the code (.text), |
| initialised data (.data) and uninitialised data sections (.bss). |
| </p> |
| <a name="index-_002dmuse_002drenesas_002dsection_002dnames"></a> |
| </dd> |
| <dt><code>-muse-renesas-section-names</code></dt> |
| <dd><p>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-_002dmsmall_002ddata_002dlimit"></a> |
| </dd> |
| <dt><code>-msmall-data-limit</code></dt> |
| <dd><p>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 <code>__gp</code> 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. |
| </p> |
| <a name="index-_002dmpid"></a> |
| </dd> |
| <dt><code>-mpid</code></dt> |
| <dd><p>This option tells the assembler that the position independent data of the |
| RX port of GCC is being used. This results in the assembler |
| generating an undefined reference to a symbol called <code>__pid_base</code>, |
| and also setting the RX_PID flag bit in the e_flags field of the ELF |
| header of the object file. |
| </p> |
| <a name="index-_002dmint_002dregister"></a> |
| </dd> |
| <dt><code>-mint-register=<var>num</var></code></dt> |
| <dd><p>This option tells the assembler how many registers have been reserved |
| for use by interrupt handlers. This is needed in order to compute the |
| correct values for the <code>%gpreg</code> and <code>%pidreg</code> meta registers. |
| </p> |
| <a name="index-_002dmgcc_002dabi"></a> |
| </dd> |
| <dt><code>-mgcc-abi</code></dt> |
| <dd><p>This option tells the assembler that the old GCC ABI is being used by |
| the assembled code. With this version of the ABI function arguments |
| that are passed on the stack are aligned to a 32-bit boundary. |
| </p> |
| <a name="index-_002dmrx_002dabi"></a> |
| </dd> |
| <dt><code>-mrx-abi</code></dt> |
| <dd><p>This option tells the assembler that the official RX ABI is being used |
| by the assembled code. With this version of the ABI function |
| arguments that are passed on the stack are aligned to their natural |
| alignments. This option is the default. |
| </p> |
| <a name="index-_002dmcpu_003d"></a> |
| </dd> |
| <dt><code>-mcpu=<var>name</var></code></dt> |
| <dd><p>This option tells the assembler the target CPU type. Currently the |
| <code>rx200</code>, <code>rx600</code> and <code>rx610</code> are recognised as valid |
| cpu names. Attempting to assemble an instruction not supported by the |
| indicated cpu type will result in an error message being generated. |
| </p> |
| </dd> |
| </dl> |
| |
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| Next: <a href="RX_002dModifiers.html#RX_002dModifiers" accesskey="n" rel="next">RX-Modifiers</a>, Up: <a href="RX_002dDependent.html#RX_002dDependent" accesskey="u" rel="up">RX-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p> |
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