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140 lines
5.8 KiB
HTML
140 lines
5.8 KiB
HTML
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<head>
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<title>Prompt (Debugging with GDB)</title>
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Controlling-GDB.html#Controlling-GDB" rel="up" title="Controlling GDB">
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</head>
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<body lang="en">
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<a name="Prompt"></a>
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<div class="header">
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<p>
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Next: <a href="Editing.html#Editing" accesskey="n" rel="next">Editing</a>, Up: <a href="Controlling-GDB.html#Controlling-GDB" accesskey="u" rel="up">Controlling GDB</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>
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</div>
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<hr>
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<a name="Prompt-1"></a>
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<h3 class="section">22.1 Prompt</h3>
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<a name="index-prompt"></a>
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<p><small>GDB</small> indicates its readiness to read a command by printing a string
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called the <em>prompt</em>. This string is normally ‘<samp>(gdb)</samp>’. You
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can change the prompt string with the <code>set prompt</code> command. For
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instance, when debugging <small>GDB</small> with <small>GDB</small>, it is useful to change
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the prompt in one of the <small>GDB</small> sessions so that you can always tell
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which one you are talking to.
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</p>
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<p><em>Note:</em> <code>set prompt</code> does not add a space for you after the
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prompt you set. This allows you to set a prompt which ends in a space
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or a prompt that does not.
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</p>
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<dl compact="compact">
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<dd><a name="index-set-prompt"></a>
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</dd>
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<dt><code>set prompt <var>newprompt</var></code></dt>
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<dd><p>Directs <small>GDB</small> to use <var>newprompt</var> as its prompt string henceforth.
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</p>
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<a name="index-show-prompt"></a>
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</dd>
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<dt><code>show prompt</code></dt>
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<dd><p>Prints a line of the form: ‘<samp>Gdb's prompt is: <var>your-prompt</var></samp>’
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</p></dd>
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</dl>
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<p>Versions of <small>GDB</small> that ship with Python scripting enabled have
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prompt extensions. The commands for interacting with these extensions
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are:
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</p>
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<dl compact="compact">
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<dd><a name="index-set-extended_002dprompt"></a>
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</dd>
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<dt><code>set extended-prompt <var>prompt</var></code></dt>
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<dd><p>Set an extended prompt that allows for substitutions.
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See <a href="gdb_002eprompt.html#gdb_002eprompt">gdb.prompt</a>, for a list of escape sequences that can be used for
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substitution. Any escape sequences specified as part of the prompt
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string are replaced with the corresponding strings each time the prompt
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is displayed.
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</p>
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<p>For example:
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</p>
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<div class="smallexample">
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<pre class="smallexample">set extended-prompt Current working directory: \w (gdb)
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</pre></div>
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<p>Note that when an extended-prompt is set, it takes control of the
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<var>prompt_hook</var> hook. See <a href="Basic-Python.html#prompt_005fhook">prompt_hook</a>, for further information.
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</p>
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<a name="index-show-extended_002dprompt"></a>
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</dd>
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<dt><code>show extended-prompt</code></dt>
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<dd><p>Prints the extended prompt. Any escape sequences specified as part of
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the prompt string with <code>set extended-prompt</code>, are replaced with the
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corresponding strings each time the prompt is displayed.
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</p></dd>
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</dl>
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<hr>
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<div class="header">
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<p>
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Next: <a href="Editing.html#Editing" accesskey="n" rel="next">Editing</a>, Up: <a href="Controlling-GDB.html#Controlling-GDB" accesskey="u" rel="up">Controlling GDB</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>
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</div>
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</body>
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</html>
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