102 lines
4.7 KiB
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102 lines
4.7 KiB
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<title>GDB/MI Input Syntax - Debugging with GDB</title>
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<link rel="up" href="GDB_002fMI-Command-Syntax.html#GDB_002fMI-Command-Syntax" title="GDB/MI Command Syntax">
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<link rel="next" href="GDB_002fMI-Output-Syntax.html#GDB_002fMI-Output-Syntax" title="GDB/MI Output Syntax">
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<div class="node">
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<a name="GDB%2fMI-Input-Syntax"></a>
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<a name="GDB_002fMI-Input-Syntax"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="GDB_002fMI-Output-Syntax.html#GDB_002fMI-Output-Syntax">GDB/MI Output Syntax</a>,
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Up: <a rel="up" accesskey="u" href="GDB_002fMI-Command-Syntax.html#GDB_002fMI-Command-Syntax">GDB/MI Command Syntax</a>
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<hr>
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</div>
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<h4 class="subsection">27.2.1 <span class="sc">gdb/mi</span> Input Syntax</h4>
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<p><a name="index-input-syntax-for-_0040sc_007bgdb_002fmi_007d-2953"></a><a name="index-g_t_0040sc_007bgdb_002fmi_007d_002c-input-syntax-2954"></a>
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<dl>
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<dt><var>command</var><code> ==></code><dd><var>cli-command</var><code> | </code><var>mi-command</var>
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<br><dt><var>cli-command</var><code> ==></code><dd><code>[ </code><var>token</var><code> ] </code><var>cli-command</var> <var>nl</var>, where
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<var>cli-command</var> is any existing <span class="sc">gdb</span> CLI command.
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<br><dt><var>mi-command</var><code> ==></code><dd><code>[ </code><var>token</var><code> ] "-" </code><var>operation</var><code> ( " " </code><var>option</var><code> )*
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[ " --" ] ( " " </code><var>parameter</var><code> )* </code><var>nl</var>
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<br><dt><var>token</var><code> ==></code><dd>"any sequence of digits"
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<br><dt><var>option</var><code> ==></code><dd><code>"-" </code><var>parameter</var><code> [ " " </code><var>parameter</var><code> ]</code>
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<br><dt><var>parameter</var><code> ==></code><dd><var>non-blank-sequence</var><code> | </code><var>c-string</var>
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<br><dt><var>operation</var><code> ==></code><dd><em>any of the operations described in this chapter</em>
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<br><dt><var>non-blank-sequence</var><code> ==></code><dd><em>anything, provided it doesn't contain special characters such as
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"-", </em><var>nl</var><em>, """ and of course " "</em>
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<br><dt><var>c-string</var><code> ==></code><dd><code>""" </code><var>seven-bit-iso-c-string-content</var><code> """</code>
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<br><dt><var>nl</var><code> ==></code><dd><code>CR | CR-LF</code>
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</dl>
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<p class="noindent">Notes:
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<ul>
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<li>The CLI commands are still handled by the <span class="sc">mi</span> interpreter; their
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output is described below.
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<li>The <var>token</var>, when present, is passed back when the command
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finishes.
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<li>Some <span class="sc">mi</span> commands accept optional arguments as part of the parameter
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list. Each option is identified by a leading ‘<samp><span class="samp">-</span></samp>’ (dash) and may be
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followed by an optional argument parameter. Options occur first in the
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parameter list and can be delimited from normal parameters using
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‘<samp><span class="samp">--</span></samp>’ (this is useful when some parameters begin with a dash).
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</ul>
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<p>Pragmatics:
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<ul>
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<li>We want easy access to the existing CLI syntax (for debugging).
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<li>We want it to be easy to spot a <span class="sc">mi</span> operation.
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</ul>
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</body></html>
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