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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Code coverage crashing on windows"
href="https://bugs.llvm.org/show_bug.cgi?id=40613">40613</a>
</td>
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<tr>
<th>Summary</th>
<td>Code coverage crashing on windows
</td>
</tr>
<tr>
<th>Product</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Version</th>
<td>7.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>profile
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mariusguggenmos@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=21437" name="attach_21437" title="sample code + binary + crash dump + description">attachment 21437</a> <a href="attachment.cgi?id=21437&action=edit" title="sample code + binary + crash dump + description">[details]</a></span>
sample code + binary + crash dump + description
TLDR: Small sample compiled on windows (clang-cl) with source code coverage
crashes in initializeValueProfRuntimeRecord
Host:
64 bit windows 10, 1803
VM in VirtualBox
AMD Ryzen 1700X
10GB RAM
<span class="quote">>git status</span >
On branch release/7.x
Your branch is up to date with 'origin/release/7.x'
Compiled with MSVC 19.16.27026.1
<span class="quote">> clang-cl --version</span >
clang version 7.1.0
Target: x86_64-pc-windows-msvc
Thread model: posix
InstalledDir: C:\Program Files\LLVM701\bin
Build simple test program (source and binary attached) with source code
coverage, i.e.
"-fprofile-instr-generate -fcoverage-mapping"
Run it. It crashes in compiler-rt/lib/InstrProfilingValue.c (334)
Crash (also see test.dmp):
332 while (Site) {
333 C++;
334 --> Site = Site->Next;
335 }
Site: 0x959a638761943be0 (invalid memory address)
[0x0] test!initializeValueProfRuntimeRecord + 0x14d
[0x1] test!writeOneValueProfData + 0x15d
[0x2] test!writeValueProfData + 0x8b
[0x3] test!lprofWriteDataImpl + 0x270
[0x4] test!lprofWriteData + 0xbc
[0x5] test!writeFile + 0xbd
[0x6] test!__llvm_profile_write_file + 0x179
[0x7] test!writeFileWithoutReturn + 0x1a
Note that this is not c++ specific. I originally tested the sample as c code
with the same results.</pre>
</div>
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