75 lines
3.9 KiB
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75 lines
3.9 KiB
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<title>GDB/MI Stream Records - Debugging with GDB</title>
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<link rel="up" href="GDB_002fMI-Output-Records.html#GDB_002fMI-Output-Records" title="GDB/MI Output Records">
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<div class="node">
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<a name="GDB%2fMI-Stream-Records"></a>
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<a name="GDB_002fMI-Stream-Records"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="GDB_002fMI-Async-Records.html#GDB_002fMI-Async-Records">GDB/MI Async Records</a>,
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Previous: <a rel="previous" accesskey="p" href="GDB_002fMI-Result-Records.html#GDB_002fMI-Result-Records">GDB/MI Result Records</a>,
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<h4 class="subsection">27.5.2 <span class="sc">gdb/mi</span> Stream Records</h4>
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<p><a name="index-g_t_0040sc_007bgdb_002fmi_007d_002c-stream-records-2975"></a><a name="index-stream-records-in-_0040sc_007bgdb_002fmi_007d-2976"></a><span class="sc">gdb</span> internally maintains a number of output streams: the console, the
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target, and the log. The output intended for each of these streams is
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funneled through the <span class="sc">gdb/mi</span> interface using <dfn>stream records</dfn>.
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<p>Each stream record begins with a unique <dfn>prefix character</dfn> which
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identifies its stream (see <a href="GDB_002fMI-Output-Syntax.html#GDB_002fMI-Output-Syntax"><span class="sc">gdb/mi</span> Output Syntax</a>). In addition to the prefix, each stream record contains a
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<var>string-output</var>. This is either raw text (with an implicit new
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line) or a quoted C string (which does not contain an implicit newline).
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<dl>
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<dt><code>"~" </code><var>string-output</var><dd>The console output stream contains text that should be displayed in the
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CLI console window. It contains the textual responses to CLI commands.
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<br><dt><code>"@" </code><var>string-output</var><dd>The target output stream contains any textual output from the running
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target. This is only present when GDB's event loop is truly
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asynchronous, which is currently only the case for remote targets.
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<br><dt><code>"&" </code><var>string-output</var><dd>The log stream contains debugging messages being produced by <span class="sc">gdb</span>'s
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internals.
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</dl>
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</body></html>
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