[Bug target/26532] New: [4.1]: libmudflap failures on ia64

[Bug target/26532] New: [4.1]: libmudflap failures on ia64

[hjl at lucon dot org]

From

http://gcc.gnu.org/ml/gcc-testresults/2006-03/msg00084.html

there are

                === libmudflap tests ===


Running target unix
FAIL: libmudflap.c++/pass41-frag.cxx (test for excess errors)
WARNING: libmudflap.c++/pass41-frag.cxx compilation failed to produce
executable
FAIL: libmudflap.c++/pass41-frag.cxx (-O) (test for excess errors)
WARNING: libmudflap.c++/pass41-frag.cxx (-O) compilation failed to produce
executable
FAIL: libmudflap.c++/pass41-frag.cxx (-O2) (test for excess errors)
WARNING: libmudflap.c++/pass41-frag.cxx (-O2) compilation failed to produce
executable
FAIL: libmudflap.c++/pass41-frag.cxx (-O3) (test for excess errors)
WARNING: libmudflap.c++/pass41-frag.cxx (-O3) compilation failed to produce
executable
FAIL: ctors-12 linkage 
FAIL: ctors-21 linkage 
WARNING: program timed out.
FAIL: ctors-12 execution 
WARNING: program timed out.
FAIL: ctors-21 execution 
FAIL: ctors-12 linkage -static
FAIL: ctors-21 linkage -static
WARNING: program timed out.
FAIL: ctors-12 execution -static
WARNING: program timed out.
FAIL: ctors-21 execution -static
FAIL: ctors-12 linkage -O2
FAIL: ctors-21 linkage -O2
WARNING: program timed out.
FAIL: ctors-12 execution -O2
WARNING: program timed out.
FAIL: ctors-21 execution -O2
FAIL: ctors-12 linkage -O3
FAIL: ctors-21 linkage -O3
WARNING: program timed out.
FAIL: ctors-12 execution -O3
WARNING: program timed out.
FAIL: ctors-21 execution -O3

But Linux/x86 and Linux/x86-64 have no problems. The error message looks like

pass41-frag.o: In function `global constructors keyed to
0_main':/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13:
undefined reference to `std::ios_base::_S_local_word_size'
:/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13:
undefined reference to `std::ios_base::_S_local_word_size'
:/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13:
undefined reference to `std::__ios_flags::_S_trunc'
:/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13:
undefined reference to `std::__ios_flags::_S_trunc'
:/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13:
undefined reference to `std::__ios_flags::_S_out'
...

Those undefined symbols are from things like:

 struct __ios_flags
  {
    typedef short __int_type;

    static const __int_type _S_boolalpha = 0x0001;
    static const __int_type _S_dec = 0x0002;
    static const __int_type _S_fixed = 0x0004;
...

Mudflap generates

        .mii
        addl r35 = @ltoffx(_ZNSt11__ios_flags12_S_boolalphaE#), r1
        addl r38 = @ltoffx(.LC72), r1
        ;;
        nop 0
        .mmb
        ld8.mov r35 = [r35], _ZNSt11__ios_flags12_S_boolalphaE#
        ld8.mov r38 = [r38], .LC72
        br.call.sptk.many b0 = __mf_register#

I don't see why it should even bother. This problem doesn't exist in 4.2. Does
anyone know which patch fixes it?


-- 
           Summary: [4.1]: libmudflap failures on ia64
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl at lucon dot org
 GCC build triplet: ia64-unknown-linux-gnu
  GCC host triplet: ia64-unknown-linux-gnu
GCC target triplet: ia64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug target/26532] [4.1]: libmudflap failures on ia64

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2006-03-05 15:54 -------
One thing is that if libmudflap generates references to
std::ios_base::_S_local_word_size and they are not in libstdc++, then libstdc++
is broken as this would be invalid C++.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug target/26532] [4.1]: libmudflap failures on ia64

[hjl at lucon dot org]

------- Comment #2 from hjl at lucon dot org  2006-03-05 18:00 -------
std::ios_base::_S_local_word_size is in libstdc++.so. But it is marked as
local via linker version script. It is true for x86, x86-64 and ia64.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

Re: [Bug target/26532] [4.1]: libmudflap failures on ia64

[Andrew Pinski]

On Mar 5, 2006, at 1:00 PM, hjl at lucon dot org wrote:

>
>
> ------- Comment #2 from hjl at lucon dot org  2006-03-05 18:00 -------
> std::ios_base::_S_local_word_size is in libstdc++.so. But it is marked 
> as
> local via linker version script. It is true for x86, x86-64 and ia64.

There is a bug in libstdc++ then.

[Bug target/26532] [4.1]: libmudflap failures on ia64

[pinskia at physics dot uc dot edu]

------- Comment #3 from pinskia at gcc dot gnu dot org  2006-03-05 18:03 -------
Subject: Re:  [4.1]: libmudflap failures on ia64


On Mar 5, 2006, at 1:00 PM, hjl at lucon dot org wrote:

>
>
> ------- Comment #2 from hjl at lucon dot org  2006-03-05 18:00 -------
> std::ios_base::_S_local_word_size is in libstdc++.so. But it is marked 
> as
> local via linker version script. It is true for x86, x86-64 and ia64.

There is a bug in libstdc++ then.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug libstdc++/26532] std::ios_base::_S_local_word_size is not exported

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-03-05 18:09:27
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug libstdc++/26532] std::ios_base::_S_local_word_size is not exported

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2006-03-05 18:09 -------
Reduced testcase:
#include <iostream>
struct a : std::ios_base
{
 static const int*f;
};
const int *a::f = & std::ios_base::_S_local_word_size;
int main(void)
{
  return *a::f;
}


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |libstdc++
  GCC build triplet|ia64-unknown-linux-gnu      |
   GCC host triplet|ia64-unknown-linux-gnu      |
 GCC target triplet|ia64-unknown-linux-gnu      |
           Keywords|                            |link-failure
      Known to fail|                            |4.0.3 4.1.0 4.2.0
            Summary|[4.1]: libmudflap failures  |std::ios_base::_S_local_word
                   |on ia64                     |_size is not exported


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug libstdc++/26532] std::ios_base::_S_local_word_size is not exported

[pcarlini at suse dot de]

------- Comment #5 from pcarlini at suse dot de  2006-03-05 19:07 -------
I would like to know why the original problem doesn't exist in 4.2. Because, in
general, we don't want to export _S_local_word_size, only an implementation
detail. In other terms, strictly speaking, the reduced testcase is invalid.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug libstdc++/26532] std::ios_base::_S_local_word_size is not exported

[pcarlini at suse dot de]

-- 

pcarlini at suse dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug libstdc++/26532] std::ios_base::_S_local_word_size is not exported

[pcarlini at suse dot de]

------- Comment #6 from pcarlini at suse dot de  2006-03-05 20:14 -------
Created an attachment (id=10973)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10973&action=view)
Removal of _S_local_word_size


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug target/26532] libmudflap failures on ia64

[pcarlini at suse dot de]

------- Comment #7 from pcarlini at suse dot de  2006-03-05 20:18 -------
In yet other terms: I could easily apply the attached, without affecting the
functionality of the library and binary compatibility. No, we don't want to
export that symbol and the real reason of the link failure on those targets
must be investigated first. 


-- 

pcarlini at suse dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|libstdc++                   |target
            Summary|std::ios_base::_S_local_word|libmudflap failures on ia64
                   |_size is not exported       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug target/26532] libmudflap failures on ia64

[pcarlini at suse dot de]

------- Comment #8 from pcarlini at suse dot de  2006-03-06 13:17 -------
Working on it.


-- 

pcarlini at suse dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pcarlini at suse dot de
                   |dot org                     |
             Status|WAITING                     |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug target/26532] libmudflap failures on ia64

[paolo at gcc dot gnu dot org]

------- Comment #9 from paolo at gcc dot gnu dot org  2006-03-06 18:06 -------
Subject: Bug 26532

Author: paolo
Date: Mon Mar  6 18:06:47 2006
New Revision: 111789

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=111789
Log:
2006-03-06  Paolo Carlini  <pcarlini@suse.de>

        PR target/26532
        * config/io/c_io_stdio.h (struct __ios_flags): Remove.
        * include/bits/ios_base.h: Adjust consistently.
        (ios_base::_S_local_word_size): Change to an anonymous enum.
        * src/ios.cc: Do not define static const data of __ios_flags,
        likewise for ios_base::_S_local_word_size.      
        * include/bits/locale_classes.h (locale::_S_categories_size):
        Change to an anonymous enum.
        * src/locale.cc: Don't define.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/config/io/c_io_stdio.h
    trunk/libstdc++-v3/include/bits/ios_base.h
    trunk/libstdc++-v3/include/bits/locale_classes.h
    trunk/libstdc++-v3/src/ios.cc
    trunk/libstdc++-v3/src/locale.cc


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug target/26532] libmudflap failures on ia64

[pcarlini at suse dot de]

-- 

pcarlini at suse dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.1.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug target/26532] libmudflap failures on ia64

[paolo at gcc dot gnu dot org]

------- Comment #10 from paolo at gcc dot gnu dot org  2006-03-12 16:56 -------
Subject: Bug 26532

Author: paolo
Date: Sun Mar 12 16:56:08 2006
New Revision: 111979

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=111979
Log:
2006-03-12  Paolo Carlini  <pcarlini@suse.de>

        PR target/26532
        * config/io/c_io_stdio.h (struct __ios_flags): Remove.
        * include/bits/ios_base.h: Adjust consistently.
        (ios_base::_S_local_word_size): Change to an anonymous enum.
        * src/ios.cc: Do not define static const data of __ios_flags,
        likewise for ios_base::_S_local_word_size.      
        * include/bits/locale_classes.h (locale::_S_categories_size):
        Change to an anonymous enum.
        * src/locale.cc: Don't define.

Modified:
    branches/gcc-4_1-branch/libstdc++-v3/ChangeLog
    branches/gcc-4_1-branch/libstdc++-v3/config/io/c_io_stdio.h
    branches/gcc-4_1-branch/libstdc++-v3/include/bits/ios_base.h
    branches/gcc-4_1-branch/libstdc++-v3/include/bits/locale_classes.h
    branches/gcc-4_1-branch/libstdc++-v3/src/ios.cc
    branches/gcc-4_1-branch/libstdc++-v3/src/locale.cc


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532

[Bug target/26532] libmudflap failures on ia64

[pcarlini at suse dot de]

------- Comment #11 from pcarlini at suse dot de  2006-03-12 16:57 -------
Fixed for 4.1.1.


-- 

pcarlini at suse dot de changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532