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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 - clangd-indexer fails using concurrency with multiple directories"
href="https://bugs.llvm.org/show_bug.cgi?id=41195">41195</a>
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<th>Summary</th>
<td>clangd-indexer fails using concurrency with multiple directories
</td>
</tr>
<tr>
<th>Product</th>
<td>clang-tools-extra
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<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>
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<th>Component</th>
<td>clangd
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>shanehird@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
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<pre>I reported this to the mailing list but it may be more appropriate here.
clangd-indexer does not seem to handle compile_commands.json with different
directories. I am able to workaround the problem by passing
'-execute-concurrency=1'.
It seems to work ok with a single directory (i.e with just 'abc' from the
example below), but fails if there are multiple, as in the example below.
I am working with revision 356635 of clangd.
With a directory structure of:
./
./abc
./abc/test.h
./abc/test.cc
./def
./def/ytest.h
./def/xtest.cc
./compile_commands.json
And a compile_commands.json of:
[
{
"arguments": [
"g++",
"-c",
"-o",
"test.o",
"test.cc"
],
"directory": "/home/test/abc",
"file": "test.cc"
},
{
"arguments": [
"g++",
"-c",
"-o",
"xtest.o",
"xtest.cc"
],
"directory": "/home/test/def",
"file": "xtest.cc"
}
]
I receive the error:
[test]$ clangd-indexer -executor=all-TUs compile_commands.json > clangd.dex
[1/2] Processing file /home/test/abc/test.cc
[2/2] Processing file /home/test/def/xtest.cc
error: no such file or directory: 'test.cc'
error: no input files
error: unable to handle compilation, expected exactly one compiler job in ''
Error while processing /home/test/abc/test.cc.
Failed to run action on /home/test/abc/test.cc
I assume it may be related to a non-thread-safe chdir somewhere in the code.</pre>
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