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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - SBThread::ReturnFromFrame does not work"
href="https://llvm.org/bugs/show_bug.cgi?id=25070">25070</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>SBThread::ReturnFromFrame does not work
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>lldb-dev@lists.llvm.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>berykubik@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=15010" name="attach_15010" title="C++ source with test program">attachment 15010</a> <a href="attachment.cgi?id=15010&action=edit" title="C++ source with test program">[details]</a></span>
C++ source with test program
I'm using lldb 3.8 compiled from trunk, but I also experienced this issue in
lldb-3.6.
When I use SBThread::ReturnFromFrame when in a C++ function that returns some
value, the SBValue doesn't get set, even though no error is returned. Is this
function currently implemented?
<a href="https://github.com/llvm-mirror/lldb/blob/f2d745d54e1903f72190f767633af481f61ff0c2/source/Target/Thread.cpp#L1921">https://github.com/llvm-mirror/lldb/blob/f2d745d54e1903f72190f767633af481f61ff0c2/source/Target/Thread.cpp#L1921</a>
seems to imply that it's not.
Example script (I attached the C++ source test.cpp):
import lldb
import os
import time
debugger = lldb.SBDebugger.Create()
target = debugger.CreateTarget("./test")
target.BreakpointCreateByLocation("test.cpp", 3)
process = target.LaunchSimple([], [], os.getcwd())
time.sleep(1) # wait for bp to be hit
thread = process.GetSelectedThread()
frame = thread.GetSelectedFrame()
value = lldb.SBValue()
error = thread.ReturnFromFrame(frame, value)
# error is marked as sucesss, but value contains nothing</pre>
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