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<title>The Call Stack Window - Using the GNAT Programming Studio</title>
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Next: <a rel="next" accesskey="n" href="The-Data-Window.html#The-Data-Window">The Data Window</a>,
Previous: <a rel="previous" accesskey="p" href="The-Debug-Menu.html#The-Debug-Menu">The Debug Menu</a>,
Up: <a rel="up" accesskey="u" href="Debugging.html#Debugging">Debugging</a>
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<h3 class="section">11.2 The Call Stack Window</h3>
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<p class="noindent">The call stack window gives a list of frames corresponding to the current
execution stack for the current thread/task.
<p><a name="index-screen-shot-498"></a><img src="call-stack.jpg" alt="call-stack.jpg">
<p>The bottom frame corresponds to the outermost frame where the thread is
currently stopped. This frame corresponds to the first function
executed by the current thread (e.g main if the main thread is in C).
You can click on any frame to switch to the caller's context, this will
update the display in the source window. See also the up and down
buttons in the tool bar to go up and down one frame in the call stack.
<p><a name="index-contextual-menu-499"></a> The contextual menu (right mouse button) allows you to choose which
information you want to display in the call stack window (via check buttons):
<ul>
<li>Frame number: the debugger frame number (usually starts at 0 or 1)
<li>Program Counter: the low level address corresponding to the
function's entry point.
<li>Subprogram Name: the name of the subprogram in a given frame
<li>Parameters: the parameters of the subprogram
<li>File Location: the filename and line number information.
</ul>
<p>By default, only the subprogram name is displayed.
You can hide the call stack window by closing it, as for other windows, and
show it again using the menu <code>Data->Call Stack</code>.
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