| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- Copyright (C) 1988-2015 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 or |
| any later version published by the Free Software Foundation; with the |
| Invariant Sections being "Free Software" and "Free Software Needs |
| Free Documentation", with the Front-Cover Texts being "A GNU Manual," |
| and with the Back-Cover Texts as in (a) below. |
| |
| (a) The FSF's Back-Cover Text is: "You are free to copy and modify |
| this GNU Manual. Buying copies from GNU Press supports the FSF in |
| developing GNU and promoting software freedom." --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>Debugging with GDB: GDB/MI Stream Records</title> |
| |
| <meta name="description" content="Debugging with GDB: GDB/MI Stream Records"> |
| <meta name="keywords" content="Debugging with GDB: GDB/MI Stream Records"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <link href="index.html#Top" rel="start" title="Top"> |
| <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="GDB_002fMI-Output-Records.html#GDB_002fMI-Output-Records" rel="up" title="GDB/MI Output Records"> |
| <link href="GDB_002fMI-Async-Records.html#GDB_002fMI-Async-Records" rel="next" title="GDB/MI Async Records"> |
| <link href="GDB_002fMI-Result-Records.html#GDB_002fMI-Result-Records" rel="prev" title="GDB/MI Result Records"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| div.smalllisp {margin-left: 3.2em} |
| kbd {font-style:oblique} |
| pre.display {font-family: inherit} |
| pre.format {font-family: inherit} |
| pre.menu-comment {font-family: serif} |
| pre.menu-preformatted {font-family: serif} |
| pre.smalldisplay {font-family: inherit; font-size: smaller} |
| pre.smallexample {font-size: smaller} |
| pre.smallformat {font-family: inherit; font-size: smaller} |
| pre.smalllisp {font-size: smaller} |
| span.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="GDB_002fMI-Stream-Records"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="GDB_002fMI-Async-Records.html#GDB_002fMI-Async-Records" accesskey="n" rel="next">GDB/MI Async Records</a>, Previous: <a href="GDB_002fMI-Result-Records.html#GDB_002fMI-Result-Records" accesskey="p" rel="prev">GDB/MI Result Records</a>, Up: <a href="GDB_002fMI-Output-Records.html#GDB_002fMI-Output-Records" accesskey="u" rel="up">GDB/MI Output Records</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> |
| </div> |
| <hr> |
| <a name="GDB_002fMI-Stream-Records-1"></a> |
| <h4 class="subsection">27.5.2 <small>GDB/MI</small> Stream Records</h4> |
| |
| <a name="index-GDB_002fMI_002c-stream-records"></a> |
| <a name="index-stream-records-in-GDB_002fMI"></a> |
| <p><small>GDB</small> internally maintains a number of output streams: the console, the |
| target, and the log. The output intended for each of these streams is |
| funneled through the <small>GDB/MI</small> interface using <em>stream records</em>. |
| </p> |
| <p>Each stream record begins with a unique <em>prefix character</em> which |
| identifies its stream (see <a href="GDB_002fMI-Output-Syntax.html#GDB_002fMI-Output-Syntax"><small>GDB/MI</small> Output |
| Syntax</a>). In addition to the prefix, each stream record contains a |
| <code><var>string-output</var></code>. This is either raw text (with an implicit new |
| line) or a quoted C string (which does not contain an implicit newline). |
| </p> |
| <dl compact="compact"> |
| <dt><code>"~" <var>string-output</var></code></dt> |
| <dd><p>The console output stream contains text that should be displayed in the |
| CLI console window. It contains the textual responses to CLI commands. |
| </p> |
| </dd> |
| <dt><code>"@" <var>string-output</var></code></dt> |
| <dd><p>The target output stream contains any textual output from the running |
| target. This is only present when GDB’s event loop is truly |
| asynchronous, which is currently only the case for remote targets. |
| </p> |
| </dd> |
| <dt><code>"&" <var>string-output</var></code></dt> |
| <dd><p>The log stream contains debugging messages being produced by <small>GDB</small>’s |
| internals. |
| </p></dd> |
| </dl> |
| |
| |
| |
| |
| </body> |
| </html> |
