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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 --- - [stack unwinding][arm] "push {sp}" confuses the instruction emulation based unwinding on arm" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23879&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=DDUMf06MYELAe1Nlv7KChiwJLLHbYha4jtK_AOiWqwQ&m=O6zK1xx1Y2CeIoqENoiFd52mHLP70-PI5x39_WHew0Q&s=sVXwZm7vopRuHyIl7XL3fpLav_ZuNEsTS48FRWpjgA0&e=">23879</a>
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<th>Summary</th>
<td>[stack unwinding][arm] "push {sp}" confuses the instruction emulation based unwinding on arm
</td>
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<th>Product</th>
<td>lldb
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>lldb-dev@cs.uiuc.edu
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<th>Reporter</th>
<td>tberghammer@google.com
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<th>Classification</th>
<td>Unclassified
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</tr></table>
<p>
<div>
<pre>Unwinding from the following functions doesn't work on Android 5.1 ARM at some
address:
__aeabi_ldivmod, __aeabi_uldivmod
The issue caused by a "push {sp}" instruction because the instruction emulator
can't keep track of the value of the sp of the previous frame when it is
[CFA+#imm]+#imm</pre>
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</p>
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