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From: "malat at debian dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/103629] [11/12/13 Regression] Possible miscompilation
 visible using pthread + exception
Date: Wed, 24 Aug 2022 12:16:26 +0000
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X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 11.2.0
X-Bugzilla-Keywords: wrong-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103629

--- Comment #24 from Mathieu Malaterre <malat at debian dot org> ---
I have change the openvdb.cc code into:

% cat openvdb.cc
#include "Tree.h"

static std::string do_segfault() { return Tree::treeType(); }

#ifdef VIS
__attribute__((visibility("default")))
#endif
void initialize()
{
  do_segfault();
}

Now I can demonstrate that the issue only happen when using the visibility =
flag
(no-symptom using the default UNIX mechanism to export all symbols).=