[Bug c++/17324] New: Error: symbol `bRKNS0_IT_SD_EE' is already defined

[Bug c++/17324] New: Error: symbol `bRKNS0_IT_SD_EE' is already defined

[tromey at gcc dot gnu dot org]

This is on x86 Red Hat Linux 9.

When compiling my C++ program, some compilations give:

/tmp/ccExlHud.s: Assembler messages:
/tmp/ccExlHud.s:25502: Error: symbol `bRKNS0_IT_SD_EE' is already defined

This didn't happen with the cvs head compiler as of a week or so ago.

fleche. gcc --version
gcc (GCC) 3.5.0 20040904 (experimental)
Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


I'll attach my .ii file.
I compile with:

/home/tromey/gnu/Trunk/install/bin/g++ -g -Wall -Winvalid-pch -Wreturn-type
-D_GLIBCXX_DEBUG  -I.  -c -o scope.o scope.cc

I ordinarily have a .gch file, however I get the same error if I 
remove it.

-- 
           Summary: Error: symbol `bRKNS0_IT_SD_EE' is already defined
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tromey at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[tromey at gcc dot gnu dot org]

------- Additional Comments From tromey at gcc dot gnu dot org  2004-09-04 19:51 -------
Created an attachment (id=7049)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=7049&action=view)
.ii file for this bug


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [3.5 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical
           Keywords|                            |wrong-code
            Summary|Error: symbol               |[3.5 Regression] Error:
                   |`bRKNS0_IT_SD_EE' is already|symbol `bRKNS0_IT_SD_EE' is
                   |defined                     |already defined
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [3.5 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[tromey at gcc dot gnu dot org]

------- Additional Comments From tromey at gcc dot gnu dot org  2004-09-08 01:05 -------
FWIW I still get this error after upgrading my OS
to fedora core 2.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [3.5 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-09 03:22 -------
Okay, who added a symbol length limit into GCC?
I almost think it was this change which caused the problem:
2004-08-25  Mark Mitchell  <mark@codesourcery.com>

        PR c++/17155
        * lex.c (build_lang_decl): Set DECL_NO_STATIC_CHAIN for all C++
        functions.

        * mangle.c (get_identifier_nocopy): Add cast.

        * cp-tree.h (mangle_type): Remove.
        * mangle.c (globals): GTY it.
        (mangle_obstack): New variable.
        (name_obstack): Likewise.
        (name_base): Likewise.
        (write_char): Adjust accordingly.
        (write_chars): Likewise.
        (write_string): Likewise.
        (start_mangling): Initialize G.substitutions only one.  Add
        ident_p parameter.
        (finish_mangling): Use VARRAY_CLEAR to reclaim
        storage in G.substitutions.  Use obstack_finish.
        (init_mangle): Adjust for changes to variable names above.
        Initialize G.substitutions.
        (mangle_decl_string): Adjust call to start_mangling.
        (get_identifier_nocopy): New function.
        (mangle_decl): Use it.
        (mangle_type_string): Adjust call to start_mangling.
        (mangle_special_for_type): Likewise.
        (mangle_vtt_for_type): Likewise.
        (mangle_ctor_vtbl_for_type): Likewise.
        (mangle_thunk): Likewise.
        (mangle_guard_variable): Likewise.
        (mangle_ref_init_variable): Likewise.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mmitchel at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [3.5 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-09-09 03:49 -------
That looks like memory being stomped upon somehow.  It's definitely possible
that my patch caused this problem, but I'm not seeing how.  If you can pin this
down to my patch, please assign it to me, and I'll work it out.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-09-13 23:58 -------
I don't know if anyone is suprised by this, but I don't get any 
error with a mainline snapshot from 20040809. I'm updating at 
present and will try to reproduce this failure. 
 
W. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[tromey at gcc dot gnu dot org]

------- Additional Comments From tromey at gcc dot gnu dot org  2004-09-14 01:18 -------
I just updated and rebuilt:

opsy. ~/gnu/Trunk/install/bin/gcc --version
gcc (GCC) 4.0.0 20040914 (experimental)
Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

And I still get the error:
/home/tromey/gnu/Trunk/install/bin/g++ -g -Wall -Winvalid-pch -Wreturn-type
-D_GLIBCXX_DEBUG  -I.  -c -o scope.o scope.cc
/tmp/ccS2Fd7u.s: Assembler messages:
/tmp/ccS2Fd7u.s:25991: Error: symbol `bRKNS0_IT_SD_EE' is already defined
make: *** [scope.o] Error 1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-09-14 01:59 -------
OK, I see it now, too. Note that -g isn't actually needed. 
 
W. 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-09-14 01:59:32
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-09-14 03:42 -------
This should be sufficiently short for people to fix the problem. I'd 
definitely say the code is valid: 
--------------------- 
template <typename _Iterator, typename _Sequence> struct S { 
    template<typename _Other> 
    bool foo(const S<_Other, _Sequence> &) {return false;}; 
}; 
 
template <typename _Sequence> struct X { 
    template<typename _Iterator> 
    void unrelated(const S<_Iterator, _Sequence>& __x); 
}; 
 
template<typename T> struct map : X<map<T> > { 
    typedef S<int, map> iterator; 
    void clear() { iterator().foo(iterator()); } 
}; 
 
template<typename T> struct scope { 
    map<T> undo; 
    void push () { undo.clear (); } 
}; 
 
struct A {}; 
struct B {}; 
 
template class scope<A>; 
template class scope<B>; 
------------------------ 
 
g/x> /home/bangerth/bin/gcc-4.0-pre/bin/c++ -c x.ii  
/tmp/ccOlRHCN.s: Assembler messages: 
/tmp/ccOlRHCN.s:61: Error: symbol `bRKS_IT_S2_E' is already defined 
 
W. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-14 03:48 -------
Using Phil's regression hunter the hard way, I was able to found the dates at which it failed at:
between 3.5.0 20040825 and 3.5.0 20040826 which shows that Mark's patch is more likely now.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2004-09-14 09:23 -------
Here's something shorter:

=================================================
template<int, typename T> struct A
{
    template<int I> void foo(const A<I,T>&) {}
};

template<typename> struct B
{
    template<int J> void bar(const A<J,B>&);
    void baz() { A<0,B>().foo(A<0,B>()); }
};

template struct B<void>;
template struct B<int>;
=================================================

It yields:

/tmp/ccMslYfY.s: Assembler messages:
/tmp/ccMslYfY.s:41: Error: symbol `vRKS_IXT_ES1_E' is already defined


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
           Keywords|                            |monitored


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[mmitchel at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |mark at codesourcery dot com
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-09-15 03:22 -------
Subject: Bug 17324

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2004-09-15 03:22:20

Modified files:
	gcc/testsuite  : ChangeLog 
	gcc/cp         : ChangeLog mangle.c 
Added files:
	gcc/testsuite/g++.dg/template: mangle1.C 

Log message:
	PR c++/17324
	* mangle.c (partially_mangled_name): New variable.
	(partially_mangled_name_len): Likewise.
	(save_partially_mangled_name): New function.
	(restore_partially_mangled_name): Likewise.
	(write_encoding): Save and restore partially mangled names around
	calls to get_mostly_instantiated_function_type.
	(write_unqualified_name): Likewise.
	
	PR c++/17324
	* g++.dg/template/mangle1.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4290&r2=1.4291
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/mangle1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4351&r2=1.4352
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/mangle.c.diff?cvsroot=gcc&r1=1.111&r2=1.112



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324

[Bug c++/17324] [4.0 Regression] Error: symbol `bRKNS0_IT_SD_EE' is already defined

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-09-15 03:26 -------
Fixed in GCC 4.0.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17324