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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - llvm doesn't handle @@@ in symbol names at lto time"
href="https://bugs.llvm.org/show_bug.cgi?id=36623">36623</a>
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<th>Summary</th>
<td>llvm doesn't handle @@@ in symbol names at lto time
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<th>Product</th>
<td>new-bugs
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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
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>new bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>rafael@espindo.la
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, peter@pcc.me.uk, tejohnson@google.com
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<p>
<div>
<pre>Given
$ cat test.ll
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
module asm ".global foo"
module asm "foo:"
module asm ".symver foo,foo@@@VER1"
llc produces a file with:
0000000000000000 T foo@@VER1
But running llvm-nm on the bitcode shows
---------------- T foo
---------------- T foo@@@VER1
So it looks like we are missing a special case for @@@ in the asm parsing we do
for creating bitcode symbol tables.
This results in LTO failures. Given a test.ver with "VER1 {};", we get:
$ ld.lld -shared test.o -o t.so --version-script test.ver
(no errors)
but
$ ld.lld: error: duplicate symbol: foo@@@VER1
<span class="quote">>>> defined in test.bc
>>> defined in test.bc</span ></pre>
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