72 lines
3.7 KiB
HTML
72 lines
3.7 KiB
HTML
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<title>Thread Stops - Debugging with GDB</title>
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<a name="Thread-Stops"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="Signals.html#Signals">Signals</a>,
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Up: <a rel="up" accesskey="u" href="Stopping.html#Stopping">Stopping</a>
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<hr>
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</div>
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<h3 class="section">5.5 Stopping and Starting Multi-thread Programs</h3>
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<p><a name="index-stopped-threads-398"></a><a name="index-threads_002c-stopped-399"></a>
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<a name="index-continuing-threads-400"></a><a name="index-threads_002c-continuing-401"></a>
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<span class="sc">gdb</span> supports debugging programs with multiple threads
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(see <a href="Threads.html#Threads">Debugging Programs with Multiple Threads</a>). There
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are two modes of controlling execution of your program within the
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debugger. In the default mode, referred to as <dfn>all-stop mode</dfn>,
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when any thread in your program stops (for example, at a breakpoint
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or while being stepped), all other threads in the program are also stopped by
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<span class="sc">gdb</span>. On some targets, <span class="sc">gdb</span> also supports
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<dfn>non-stop mode</dfn>, in which other threads can continue to run freely while
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you examine the stopped thread in the debugger.
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<ul class="menu">
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<li><a accesskey="1" href="All_002dStop-Mode.html#All_002dStop-Mode">All-Stop Mode</a>: All threads stop when GDB takes control
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<li><a accesskey="2" href="Non_002dStop-Mode.html#Non_002dStop-Mode">Non-Stop Mode</a>: Other threads continue to execute
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<li><a accesskey="3" href="Background-Execution.html#Background-Execution">Background Execution</a>: Running your program asynchronously
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<li><a accesskey="4" href="Thread_002dSpecific-Breakpoints.html#Thread_002dSpecific-Breakpoints">Thread-Specific Breakpoints</a>: Controlling breakpoints
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<li><a accesskey="5" href="Interrupted-System-Calls.html#Interrupted-System-Calls">Interrupted System Calls</a>: GDB may interfere with system calls
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<li><a accesskey="6" href="Observer-Mode.html#Observer-Mode">Observer Mode</a>: GDB does not alter program behavior
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</ul>
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</body></html>
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