[Bug c++/38002] New: gcc crash using -fvisibility-ms-compat

[Bug c++/38002] New: gcc crash using -fvisibility-ms-compat

[bodzio131 at op dot pl]

gcc version 4.3.2 (GCC)
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.3.2/configure --prefix=/usr/local/gcc-4.3.2
--enable-languages=c,c++ --with-gmp=/home/builder/4gcc43
--with-mpfr=/home/builder/4gcc43 --with-as=/usr/local/gcc-4.3.2/bin/as
--with-gnu-as --with-ld=/usr/local/gcc-4.3.2/bin/ld --with-gnu-ld
Thread model: posix

system: Linux, Debian, 2.6.25

third party libraries: boost 1.33.1

command line: gcc error.cpp -I. -shared -o error.so -fvisibility-ms-compat
-lstdc++ -I$BOOST_INCLUDE_DIR -save-temps 

gcc output:

/usr/local/gcc-4.3.2/boost_1_33_1/include/boost/lexical_cast.hpp: In
instantiation of 'Target boost::lexical_cast(const Source&) [with Target =
std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Source
= int*]':
error.cpp:6:   instantiated from here
/usr/local/gcc-4.3.2/boost_1_33_1/include/boost/lexical_cast.hpp:223: internal
compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

How to attach *.ii file???


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           Summary: gcc crash using -fvisibility-ms-compat
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bodzio131 at op dot pl


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38002

[Bug c++/38002] gcc crash using -fvisibility-ms-compat

[bodzio131 at op dot pl]

------- Comment #1 from bodzio131 at op dot pl  2008-11-03 14:58 -------
Created an attachment (id=16618)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16618&action=view)
preprocessor output


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38002

[Bug c++/38002] gcc crash using -fvisibility-ms-compat

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2008-11-03 16:07 -------
Reducing.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38002

[Bug middle-end/38002] gcc crash using -fvisibility-ms-compat

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2008-11-03 16:42 -------
Reduced testcase, not a regression.

namespace std __attribute__ ((__visibility__ ("default"))) {
    class type_info   { };
};
template<class E> 
void throw_exception(E const & e);
class bad_lexical_cast {
public:
    bad_lexical_cast(const std::type_info &target_type);
};
template<typename Source> 
int lexical_cast(const Source &arg)
{
  throw_exception(bad_lexical_cast(typeid(Source)));
}
int i;
int test = lexical_cast( &i );


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c++                         |middle-end
     Ever Confirmed|0                           |1
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |4.3.0
   Last reconfirmed|0000-00-00 00:00:00         |2008-11-03 16:42:14
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38002

[Bug middle-end/38002] gcc crash using -fvisibility-ms-compat

[boz_gnu at boz dot org dot uk]

------- Comment #4 from boz_gnu at boz dot org dot uk  2009-10-26 17:39 -------
(In reply to comment #3)
> Reduced testcase, not a regression.

Here's a further reduction which still reproduces the crash:

namespace std __attribute__ ((__visibility__ ("default"))) {
    class type_info   { };
};

void foo() {
  int i;
  typeid(&i);
}


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boz_gnu at boz dot org dot uk changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |boz_gnu at boz dot org dot
                   |                            |uk


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38002

[Bug middle-end/38002] gcc crash using -fvisibility-ms-compat

[boz_gnu at boz dot org dot uk]

------- Comment #5 from boz_gnu at boz dot org dot uk  2009-10-27 16:22 -------
Created an attachment (id=18917)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18917&action=view)
Proposed patch

Looks like all we were missing was a check on CLASS_TYPE_P before calling
CLASSTYPE_VISIBILITY_SPECIFIED.

This seems to fix the crash, at least for me.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38002

[Bug middle-end/38002] gcc crash using -fvisibility-ms-compat

[binocs38149 at mypacks dot net]

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------- Comment #6 from binocs38149 at mypacks dot net  2010-07-30 19:01 -------
(In reply to comment #5)

Apple seems to have fixed it a different way:

http://www.opensource.apple.com/source/gcc/gcc-5659/gcc/cp/decl2.c

    {
      tree underlying_type = TREE_TYPE (DECL_NAME (decl));
      int underlying_vis = type_visibility (underlying_type);
      if (underlying_vis == VISIBILITY_ANON
          /* APPLE LOCAL begin 6983171 */
          || (TREE_CODE (underlying_type) == RECORD_TYPE
          && CLASSTYPE_VISIBILITY_SPECIFIED (underlying_type)))
          /* APPLE LOCAL end 6983171 */
        constrain_visibility (decl, underlying_vis);
      else
        DECL_VISIBILITY (decl) = VISIBILITY_DEFAULT;
   }

I’m not sure which approach is better.


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binocs38149 at mypacks dot net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |binocs38149 at mypacks dot
                   |                            |net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38002

[Bug c++/38002] gcc crash using -fvisibility-ms-compat

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38002

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.6.0
         Resolution|---                         |DUPLICATE
             Status|NEW                         |RESOLVED

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 47213. Fixed in GCC 4.6.0+.

*** This bug has been marked as a duplicate of bug 47213 ***