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- <title>Disabling (Debugging with GDB)</title>
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- <a name="Disabling"></a>
- <div class="header">
- <p>
- Next: <a href="Conditions.html#Conditions" accesskey="n" rel="next">Conditions</a>, Previous: <a href="Delete-Breaks.html#Delete-Breaks" accesskey="p" rel="prev">Delete Breaks</a>, Up: <a href="Breakpoints.html#Breakpoints" accesskey="u" rel="up">Breakpoints</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="Disabling-Breakpoints"></a>
- <h4 class="subsection">5.1.5 Disabling Breakpoints</h4>
-
- <a name="index-enable_002fdisable-a-breakpoint"></a>
- <p>Rather than deleting a breakpoint, watchpoint, or catchpoint, you might
- prefer to <em>disable</em> it. This makes the breakpoint inoperative as if
- it had been deleted, but remembers the information on the breakpoint so
- that you can <em>enable</em> it again later.
- </p>
- <p>You disable and enable breakpoints, watchpoints, and catchpoints with
- the <code>enable</code> and <code>disable</code> commands, optionally specifying
- one or more breakpoint numbers as arguments. Use <code>info break</code> to
- print a list of all breakpoints, watchpoints, and catchpoints if you
- do not know which numbers to use.
- </p>
- <p>Disabling and enabling a breakpoint that has multiple locations
- affects all of its locations.
- </p>
- <p>A breakpoint, watchpoint, or catchpoint can have any of several
- different states of enablement:
- </p>
- <ul>
- <li> Enabled. The breakpoint stops your program. A breakpoint set
- with the <code>break</code> command starts out in this state.
- </li><li> Disabled. The breakpoint has no effect on your program.
- </li><li> Enabled once. The breakpoint stops your program, but then becomes
- disabled.
- </li><li> Enabled for a count. The breakpoint stops your program for the next
- N times, then becomes disabled.
- </li><li> Enabled for deletion. The breakpoint stops your program, but
- immediately after it does so it is deleted permanently. A breakpoint
- set with the <code>tbreak</code> command starts out in this state.
- </li></ul>
-
- <p>You can use the following commands to enable or disable breakpoints,
- watchpoints, and catchpoints:
- </p>
- <dl compact="compact">
- <dd><a name="index-disable"></a>
- <a name="index-dis-_0028disable_0029"></a>
- </dd>
- <dt><code>disable <span class="roman">[</span>breakpoints<span class="roman">]</span> <span class="roman">[</span><var>list</var>…<span class="roman">]</span></code></dt>
- <dd><p>Disable the specified breakpoints—or all breakpoints, if none are
- listed. A disabled breakpoint has no effect but is not forgotten. All
- options such as ignore-counts, conditions and commands are remembered in
- case the breakpoint is enabled again later. You may abbreviate
- <code>disable</code> as <code>dis</code>.
- </p>
- <a name="index-enable"></a>
- </dd>
- <dt><code>enable <span class="roman">[</span>breakpoints<span class="roman">]</span> <span class="roman">[</span><var>list</var>…<span class="roman">]</span></code></dt>
- <dd><p>Enable the specified breakpoints (or all defined breakpoints). They
- become effective once again in stopping your program.
- </p>
- </dd>
- <dt><code>enable <span class="roman">[</span>breakpoints<span class="roman">]</span> once <var>list</var>…</code></dt>
- <dd><p>Enable the specified breakpoints temporarily. <small>GDB</small> disables any
- of these breakpoints immediately after stopping your program.
- </p>
- </dd>
- <dt><code>enable <span class="roman">[</span>breakpoints<span class="roman">]</span> count <var>count</var> <var>list</var>…</code></dt>
- <dd><p>Enable the specified breakpoints temporarily. <small>GDB</small> records
- <var>count</var> with each of the specified breakpoints, and decrements a
- breakpoint’s count when it is hit. When any count reaches 0,
- <small>GDB</small> disables that breakpoint. If a breakpoint has an ignore
- count (see <a href="Conditions.html#Conditions">Break Conditions</a>), that will be
- decremented to 0 before <var>count</var> is affected.
- </p>
- </dd>
- <dt><code>enable <span class="roman">[</span>breakpoints<span class="roman">]</span> delete <var>list</var>…</code></dt>
- <dd><p>Enable the specified breakpoints to work once, then die. <small>GDB</small>
- deletes any of these breakpoints as soon as your program stops there.
- Breakpoints set by the <code>tbreak</code> command start out in this state.
- </p></dd>
- </dl>
-
- <p>Except for a breakpoint set with <code>tbreak</code> (see <a href="Set-Breaks.html#Set-Breaks">Setting Breakpoints</a>), breakpoints that you set are initially enabled;
- subsequently, they become disabled or enabled only when you use one of
- the commands above. (The command <code>until</code> can set and delete a
- breakpoint of its own, but it does not change the state of your other
- breakpoints; see <a href="Continuing-and-Stepping.html#Continuing-and-Stepping">Continuing and
- Stepping</a>.)
- </p>
- <hr>
- <div class="header">
- <p>
- Next: <a href="Conditions.html#Conditions" accesskey="n" rel="next">Conditions</a>, Previous: <a href="Delete-Breaks.html#Delete-Breaks" accesskey="p" rel="prev">Delete Breaks</a>, Up: <a href="Breakpoints.html#Breakpoints" accesskey="u" rel="up">Breakpoints</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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