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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [-cxx-abi microsoft] Complete destructors for class templates instantiated with objects from an anonymous namespace should be internal"
href="http://llvm.org/bugs/show_bug.cgi?id=17273">17273</a>
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<th>Summary</th>
<td>[-cxx-abi microsoft] Complete destructors for class templates instantiated with objects from an anonymous namespace should be internal
</td>
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<th>Product</th>
<td>clang
</td>
</tr>
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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>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>LLVM Codegen
</td>
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<th>Assignee</th>
<td>rnk@google.com
</td>
</tr>
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<th>Reporter</th>
<td>rnk@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Here's an example from Chrome:
Undecoration of :-
"??_G?$BindState@V?$RunnableAdapter@P8PlatformAppPathLauncher@?A@apps@@AEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z@internal@base@@$$A6AXPAVPlatformAppPathLauncher@?A@apps@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z$$A6AX0V67@@Z@internal@base@@UAEPAXI@Z"
is :- "public: virtual void * __thiscall base::internal::BindState<class
base::internal::RunnableAdapter<void (__thiscall apps::`anonymous
namespace'::PlatformAppPathLauncher::*)(class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> > const &)>,void
__cdecl(class apps::`anonymous namespace'::PlatformAppPathLauncher *,class
std::basic_string<char,struct std::char_traits<char>,class std::allocator<char>
<span class="quote">> const &),void __cdecl(class apps::`anonymous</span >
namespace'::PlatformAppPathLauncher *,class basic_string<char,struct
std::char_traits<char>,class std::allocator<char> >::apps)>::`scalar deleting
destructor'(unsigned int)"
Basically this code I wrote is wrong:
llvm::GlobalValue::LinkageTypes
CodeGenModule::getFunctionLinkage(GlobalDecl GD) {
const FunctionDecl *D = cast<FunctionDecl>(GD.getDecl());
if (isa<CXXDestructorDecl>(D) &&
getCXXABI().useThunkForDtorVariant(cast<CXXDestructorDecl>(D),
GD.getDtorType()))
return llvm::Function::LinkOnceODRLinkage;
As an aside, Microsoft leaves these instantiations external. Instead they
invent unique names for anonymous namespaces. This is a big source of COFF
symbol differences between clang and cl.exe.</pre>
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