154 lines
8.6 KiB
HTML
154 lines
8.6 KiB
HTML
<html lang="en">
|
|
<head>
|
|
<title>GDB/MI Output Syntax - Debugging with GDB</title>
|
|
<meta http-equiv="Content-Type" content="text/html">
|
|
<meta name="description" content="Debugging with GDB">
|
|
<meta name="generator" content="makeinfo 4.13">
|
|
<link title="Top" rel="start" href="index.html#Top">
|
|
<link rel="up" href="GDB_002fMI-Command-Syntax.html#GDB_002fMI-Command-Syntax" title="GDB/MI Command Syntax">
|
|
<link rel="prev" href="GDB_002fMI-Input-Syntax.html#GDB_002fMI-Input-Syntax" title="GDB/MI Input Syntax">
|
|
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
|
<!--
|
|
Copyright (C) 1988-2019 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.''
|
|
-->
|
|
<meta http-equiv="Content-Style-Type" content="text/css">
|
|
<style type="text/css"><!--
|
|
pre.display { font-family:inherit }
|
|
pre.format { font-family:inherit }
|
|
pre.smalldisplay { font-family:inherit; font-size:smaller }
|
|
pre.smallformat { font-family:inherit; font-size:smaller }
|
|
pre.smallexample { font-size:smaller }
|
|
pre.smalllisp { font-size:smaller }
|
|
span.sc { font-variant:small-caps }
|
|
span.roman { font-family:serif; font-weight:normal; }
|
|
span.sansserif { font-family:sans-serif; font-weight:normal; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
<div class="node">
|
|
<a name="GDB%2fMI-Output-Syntax"></a>
|
|
<a name="GDB_002fMI-Output-Syntax"></a>
|
|
<p>
|
|
Previous: <a rel="previous" accesskey="p" href="GDB_002fMI-Input-Syntax.html#GDB_002fMI-Input-Syntax">GDB/MI Input Syntax</a>,
|
|
Up: <a rel="up" accesskey="u" href="GDB_002fMI-Command-Syntax.html#GDB_002fMI-Command-Syntax">GDB/MI Command Syntax</a>
|
|
<hr>
|
|
</div>
|
|
|
|
<h4 class="subsection">27.2.2 <span class="sc">gdb/mi</span> Output Syntax</h4>
|
|
|
|
<p><a name="index-output-syntax-of-_0040sc_007bgdb_002fmi_007d-2955"></a><a name="index-g_t_0040sc_007bgdb_002fmi_007d_002c-output-syntax-2956"></a>The output from <span class="sc">gdb/mi</span> consists of zero or more out-of-band records
|
|
followed, optionally, by a single result record. This result record
|
|
is for the most recent command. The sequence of output records is
|
|
terminated by ‘<samp><span class="samp">(gdb)</span></samp>’.
|
|
|
|
<p>If an input command was prefixed with a <var>token</var> then the
|
|
corresponding output for that command will also be prefixed by that same
|
|
<var>token</var>.
|
|
|
|
<dl>
|
|
<dt><var>output</var><code> ==></code><dd><code>( </code><var>out-of-band-record</var><code> )* [ </code><var>result-record</var><code> ] "(gdb)" </code><var>nl</var>
|
|
|
|
<br><dt><var>result-record</var><code> ==></code><dd><code> [ </code><var>token</var><code> ] "^" </code><var>result-class</var><code> ( "," </code><var>result</var><code> )* </code><var>nl</var>
|
|
|
|
<br><dt><var>out-of-band-record</var><code> ==></code><dd><var>async-record</var><code> | </code><var>stream-record</var>
|
|
|
|
<br><dt><var>async-record</var><code> ==></code><dd><var>exec-async-output</var><code> | </code><var>status-async-output</var><code> | </code><var>notify-async-output</var>
|
|
|
|
<br><dt><var>exec-async-output</var><code> ==></code><dd><code>[ </code><var>token</var><code> ] "*" </code><var>async-output nl</var>
|
|
|
|
<br><dt><var>status-async-output</var><code> ==></code><dd><code>[ </code><var>token</var><code> ] "+" </code><var>async-output nl</var>
|
|
|
|
<br><dt><var>notify-async-output</var><code> ==></code><dd><code>[ </code><var>token</var><code> ] "=" </code><var>async-output nl</var>
|
|
|
|
<br><dt><var>async-output</var><code> ==></code><dd><var>async-class</var><code> ( "," </code><var>result</var><code> )*</code>
|
|
|
|
<br><dt><var>result-class</var><code> ==></code><dd><code>"done" | "running" | "connected" | "error" | "exit"</code>
|
|
|
|
<br><dt><var>async-class</var><code> ==></code><dd><code>"stopped" | </code><var>others</var> (where <var>others</var> will be added
|
|
depending on the needs—this is still in development).
|
|
|
|
<br><dt><var>result</var><code> ==></code><dd> <var>variable</var><code> "=" </code><var>value</var>
|
|
|
|
<br><dt><var>variable</var><code> ==></code><dd> <var>string</var>
|
|
|
|
<br><dt><var>value</var><code> ==></code><dd> <var>const</var><code> | </code><var>tuple</var><code> | </code><var>list</var>
|
|
|
|
<br><dt><var>const</var><code> ==></code><dd><var>c-string</var>
|
|
|
|
<br><dt><var>tuple</var><code> ==></code><dd><code> "{}" | "{" </code><var>result</var><code> ( "," </code><var>result</var><code> )* "}" </code>
|
|
|
|
<br><dt><var>list</var><code> ==></code><dd><code> "[]" | "[" </code><var>value</var><code> ( "," </code><var>value</var><code> )* "]" | "["
|
|
</code><var>result</var><code> ( "," </code><var>result</var><code> )* "]" </code>
|
|
|
|
<br><dt><var>stream-record</var><code> ==></code><dd><var>console-stream-output</var><code> | </code><var>target-stream-output</var><code> | </code><var>log-stream-output</var>
|
|
|
|
<br><dt><var>console-stream-output</var><code> ==></code><dd><code>"~" </code><var>c-string nl</var>
|
|
|
|
<br><dt><var>target-stream-output</var><code> ==></code><dd><code>"@" </code><var>c-string nl</var>
|
|
|
|
<br><dt><var>log-stream-output</var><code> ==></code><dd><code>"&" </code><var>c-string nl</var>
|
|
|
|
<br><dt><var>nl</var><code> ==></code><dd><code>CR | CR-LF</code>
|
|
|
|
<br><dt><var>token</var><code> ==></code><dd><em>any sequence of digits</em>.
|
|
</dl>
|
|
|
|
<p class="noindent">Notes:
|
|
|
|
<ul>
|
|
<li>All output sequences end in a single line containing a period.
|
|
|
|
<li>The <var>token</var> is from the corresponding request. Note that
|
|
for all async output, while the token is allowed by the grammar and
|
|
may be output by future versions of <span class="sc">gdb</span> for select async
|
|
output messages, it is generally omitted. Frontends should treat
|
|
all async output as reporting general changes in the state of the
|
|
target and there should be no need to associate async output to any
|
|
prior command.
|
|
|
|
<li><a name="index-status-output-in-_0040sc_007bgdb_002fmi_007d-2957"></a><var>status-async-output</var> contains on-going status information about the
|
|
progress of a slow operation. It can be discarded. All status output is
|
|
prefixed by ‘<samp><span class="samp">+</span></samp>’.
|
|
|
|
<li><a name="index-async-output-in-_0040sc_007bgdb_002fmi_007d-2958"></a><var>exec-async-output</var> contains asynchronous state change on the target
|
|
(stopped, started, disappeared). All async output is prefixed by
|
|
‘<samp><span class="samp">*</span></samp>’.
|
|
|
|
<li><a name="index-notify-output-in-_0040sc_007bgdb_002fmi_007d-2959"></a><var>notify-async-output</var> contains supplementary information that the
|
|
client should handle (e.g., a new breakpoint information). All notify
|
|
output is prefixed by ‘<samp><span class="samp">=</span></samp>’.
|
|
|
|
<li><a name="index-console-output-in-_0040sc_007bgdb_002fmi_007d-2960"></a><var>console-stream-output</var> is output that should be displayed as is in the
|
|
console. It is the textual response to a CLI command. All the console
|
|
output is prefixed by ‘<samp><span class="samp">~</span></samp>’.
|
|
|
|
<li><a name="index-target-output-in-_0040sc_007bgdb_002fmi_007d-2961"></a><var>target-stream-output</var> is the output produced by the target program.
|
|
All the target output is prefixed by ‘<samp><span class="samp">@</span></samp>’.
|
|
|
|
<li><a name="index-log-output-in-_0040sc_007bgdb_002fmi_007d-2962"></a><var>log-stream-output</var> is output text coming from <span class="sc">gdb</span>'s internals, for
|
|
instance messages that should be displayed as part of an error log. All
|
|
the log output is prefixed by ‘<samp><span class="samp">&</span></samp>’.
|
|
|
|
<li><a name="index-list-output-in-_0040sc_007bgdb_002fmi_007d-2963"></a>New <span class="sc">gdb/mi</span> commands should only output <var>lists</var> containing
|
|
<var>values</var>.
|
|
|
|
</ul>
|
|
|
|
<p>See <a href="GDB_002fMI-Stream-Records.html#GDB_002fMI-Stream-Records"><span class="sc">gdb/mi</span> Stream Records</a>, for more
|
|
details about the various output records.
|
|
|
|
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%% SECTION %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
|
|
</body></html>
|
|
|