<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - gcc attribute abi_tag not working correctly?"
href="https://bugs.llvm.org/show_bug.cgi?id=32875">32875</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>gcc attribute abi_tag not working correctly?
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jorgensen@kcg.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>It seems the gcc abi::cxx11 tag compatibility isn't working right, at least not
with the gcc 6.3.0, don't know if that's expected or not. If you compile this:
#include <string>
#include <iostream>
int main()
{
std::string msg = "hello world";
std::ios_base::failure f(msg);
return 0;
}
your compile goes like this:
#include <string>
#include <iostream>
int main()
{
std::string msg = "hello world";
std::ios_base::failure f(msg);
return 0;
}
Here's clang(&gcc) info:
clang++ -v
clang version 5.0.0 (trunk 301891)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/jorgensen/bin/clangbuild
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.1
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.3.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.3.0
Candidate multilib: .;@m64
Selected multilib: .;@m64
I just built from trunk before filing this issue.
FWIW if I look at the symbols in the std++ lib I see:
nm --dynamic /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | c++filt | grep
'std::ios_base::failure'
000000000009fe00 T std::ios_base::failure::what() const
00000000000c1fb0 T std::ios_base::failure[abi:cxx11]::what() const
00000000000c27a0 T std::ios_base::failure[abi:cxx11]::cxx11(char const*,
std::error_code const&)
00000000000c20a0 T
std::ios_base::failure[abi:cxx11]::cxx11(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&)
00000000000c2400 T
std::ios_base::failure[abi:cxx11]::cxx11(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, std::error_code const&)
00000000000c27a0 T std::ios_base::failure[abi:cxx11]::cxx11(char const*,
std::error_code const&)
00000000000c20a0 T
std::ios_base::failure[abi:cxx11]::cxx11(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&)
00000000000c2400 T
std::ios_base::failure[abi:cxx11]::cxx11(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, std::error_code const&)
00000000000c1f90 T std::ios_base::failure[abi:cxx11]::~cxx11()
00000000000c1f70 T std::ios_base::failure[abi:cxx11]::~cxx11()
00000000000c1f70 T std::ios_base::failure[abi:cxx11]::~cxx11()
000000000009fec0 T std::ios_base::failure::failure(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&)
000000000009fec0 T std::ios_base::failure::failure(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&)
000000000009fea0 T std::ios_base::failure::~failure()
000000000009fe10 T std::ios_base::failure::~failure()
000000000009fe10 T std::ios_base::failure::~failure()
000000000037c388 V typeinfo for std::ios_base::failure[abi:cxx11]
000000000037a700 V typeinfo for std::ios_base::failure
0000000000140f30 V typeinfo name for std::ios_base::failure[abi:cxx11]
000000000013d490 V typeinfo name for std::ios_base::failure
000000000037c408 V vtable for std::ios_base::failure[abi:cxx11]
000000000037a718 V vtable for std::ios_base::failure</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>