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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Memory leaks detected when running check-clangd with ASan"
href="https://bugs.llvm.org/show_bug.cgi?id=39991">39991</a>
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<th>Summary</th>
<td>Memory leaks detected when running check-clangd with ASan
</td>
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<th>Product</th>
<td>clang-tools-extra
</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>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>clangd
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>david.stenberg@ericsson.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>Running check-clangd with ASan leads to the following tests failing due to
indirect memory leaks:
Failing Tests (5):
Extra Tools Unit Tests ::
clangd/./ClangdTests/ClangdUnitTest.GetBeginningOfIdentifier
Extra Tools Unit Tests :: clangd/./ClangdTests/FindReferences.WithinAST
Extra Tools Unit Tests :: clangd/./ClangdTests/GoToDefinition.All
Extra Tools Unit Tests :: clangd/./ClangdTests/Hover.All
Extra Tools Unit Tests :: clangd/./ClangdTests/SymbolInfoTests.All
I built, and ran the test, using:
cmake -G Ninja -DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DLLVM_ENABLE_ASSERTIONS=ON \
-DLLVM_USE_LINKER=gold \
-DLLVM_USE_SANITIZER=Address \
${LLVM_DIR}
ninja -C build-sana check-clangd
I have seen this a Ubuntu 16.04.5 machine using clang 6.0 installed from apt,
and on a Ubuntu 14.04.5 machine with a custom built clang 5.0 installation.
A bisect shows that the leaks started showing with the following commit:
r346488 | sammccall | 2018-11-09 13:56:49 +0100 (fre, 09 nov 2018) | 17 lines
[clangd] Make TestTU build with preamble, and fix the fallout.</pre>
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