toolchain/share/doc/gdb/Special-Fortran-Commands.html

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<h5 class="subsubsection">15.4.6.3 Special Fortran Commands</h5>
<p><a name="index-Special-Fortran-commands-1038"></a>
<span class="sc">gdb</span> has some commands to support Fortran-specific features,
such as displaying common blocks.
<a name="index-g_t_0040code_007bCOMMON_007d-blocks_002c-Fortran-1039"></a>
<a name="index-info-common-1040"></a>
<dl><dt><code>info common </code><span class="roman">[</span><var>common-name</var><span class="roman">]</span><dd>This command prints the values contained in the Fortran <code>COMMON</code>
block whose name is <var>common-name</var>. With no argument, the names of
all <code>COMMON</code> blocks visible at the current program location are
printed.
</dl>
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