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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - libFuzzer main is masked by gtest_main"
href="https://bugs.llvm.org/show_bug.cgi?id=38148">38148</a>
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<tr>
<th>Summary</th>
<td>libFuzzer main is masked by gtest_main
</td>
</tr>
<tr>
<th>Product</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>Macintosh
</td>
</tr>
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<th>OS</th>
<td>MacOS X
</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>
<tr>
<th>Component</th>
<td>fuzzer
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rgovostes@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Maybe somehow related to 23967, which is quite old.
I built clang ToT in a fairly straightforward way (Release build), then tried
to use it to build another LLVM tool with -fsanitize=fuzzer. Running the fuzz
target, I saw:
[==========] Running 0 tests from 0 test cases.
[==========] 0 tests from 0 test cases ran. (0 ms total)
[ PASSED ] 0 tests.
The program refused to accept a corpus directory, and -help talked about how it
was a Google Test program.
The culprit seems to be that when I built my LLVM tool, I used:
clang++ \
$("$TARGETDIR"/llvm-config --cxxflags --ldflags --system-libs --libs all) \
...
llvm-config adds -lgtest_main -lgtest to the linker flags, and gtest's main()
is apparently winning out over libFuzzer's.
I used sed to cut out -lgtest_main and that solved the issue.</pre>
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</p>
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