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<title>LD: MSP430</title>
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<a name="MSP430"></a>
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<div class="header">
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<p>
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Next: <a href="NDS32.html#NDS32" accesskey="n" rel="next">NDS32</a>, Previous: <a href="MMIX.html#MMIX" accesskey="p" rel="previous">MMIX</a>, Up: <a href="Machine-Dependent.html#Machine-Dependent" accesskey="u" rel="up">Machine Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="LD-Index.html#LD-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="ld-and-MSP430"></a>
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<h3 class="section">5.8 <code>ld</code> and MSP430</h3>
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<p>For the MSP430 it is possible to select the MPU architecture. The flag ‘<samp>-m [mpu type]</samp>’
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will select an appropriate linker script for selected MPU type. (To get a list of known MPUs
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just pass ‘<samp>-m help</samp>’ option to the linker).
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</p>
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<a name="index-MSP430-extra-sections"></a>
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<p>The linker will recognize some extra sections which are MSP430 specific:
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</p>
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<dl compact="compact">
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<dt><code>‘<samp>.vectors</samp>’</code></dt>
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<dd><p>Defines a portion of ROM where interrupt vectors located.
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</p>
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</dd>
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<dt><code>‘<samp>.bootloader</samp>’</code></dt>
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<dd><p>Defines the bootloader portion of the ROM (if applicable). Any code
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in this section will be uploaded to the MPU.
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</p>
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</dd>
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<dt><code>‘<samp>.infomem</samp>’</code></dt>
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<dd><p>Defines an information memory section (if applicable). Any code in
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this section will be uploaded to the MPU.
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</p>
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</dd>
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<dt><code>‘<samp>.infomemnobits</samp>’</code></dt>
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<dd><p>This is the same as the ‘<samp>.infomem</samp>’ section except that any code
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in this section will not be uploaded to the MPU.
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</p>
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</dd>
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<dt><code>‘<samp>.noinit</samp>’</code></dt>
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<dd><p>Denotes a portion of RAM located above ‘<samp>.bss</samp>’ section.
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</p>
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<p>The last two sections are used by gcc.
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</p></dd>
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</dl>
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<dl compact="compact">
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<dd><a name="index-MSP430-Options"></a>
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<a name="index-_002d_002dcode_002dregion"></a>
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</dd>
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<dt><samp>--code-region=[either,lower,upper,none]</samp></dt>
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<dd><p>This will transform .text* sections to [either,lower,upper].text* sections. The
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argument passed to GCC for -mcode-region is propagated to the linker
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using this option.
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</p>
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<a name="index-_002d_002ddata_002dregion"></a>
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</dd>
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<dt><samp>--data-region=[either,lower,upper,none]</samp></dt>
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<dd><p>This will transform .data*, .bss* and .rodata* sections to
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[either,lower,upper].[data,bss,rodata]* sections. The argument passed to GCC
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for -mdata-region is propagated to the linker using this option.
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</p>
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<a name="index-_002d_002ddisable_002dsec_002dtransformation"></a>
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</dd>
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<dt><samp>--disable-sec-transformation</samp></dt>
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<dd><p>Prevent the transformation of sections as specified by the <code>--code-region</code>
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and <code>--data-region</code> options.
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This is useful if you are compiling and linking using a single call to the GCC
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wrapper, and want to compile the source files using -m[code,data]-region but
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not transform the sections for prebuilt libraries and objects.
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</p></dd>
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</dl>
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<div class="header">
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<p>
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Next: <a href="NDS32.html#NDS32" accesskey="n" rel="next">NDS32</a>, Previous: <a href="MMIX.html#MMIX" accesskey="p" rel="previous">MMIX</a>, Up: <a href="Machine-Dependent.html#Machine-Dependent" accesskey="u" rel="up">Machine Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="LD-Index.html#LD-Index" title="Index" rel="index">Index</a>]</p>
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