[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[howarth at bromo dot med.uc.edu]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

Jack Howarth <howarth at bromo dot med.uc.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |i386-apple-darwin10.8.
               Host|                            |i386-apple-darwin10.8.
              Build|                            |i386-apple-darwin10.8.

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[Bug gdb/13901] New: no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[howarth at bromo dot med.uc.edu]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

             Bug #: 13901
           Summary: no handler for the OS ABI "Darwin" when gdb 7.4 built
                    as i386-apple-darwin10.8.0
           Product: gdb
           Version: 7.4
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
        AssignedTo: unassigned@sourceware.org
        ReportedBy: howarth@bromo.med.uc.edu
    Classification: Unclassified


When gdb 7.4 is built targeting i386-apple-darwin10.8.0, the resulting binary
produces the warning...

% fsf-gdb ./a.out 
GNU gdb (GDB) 7.4
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i386-apple-darwin10.8.0".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...

warning: A handler for the OS ABI "Darwin" is not built into this configuration
of GDB.  Attempting to continue with the default i386:x86-64 settings.

Reading symbols from /Users/howarth/a.out...Reading symbols from
/Users/howarth/a.out.dSYM/Contents/Resources/DWARF/a.out...done.
done.

The gdb is non-functional and produces error messages such as...

(gdb) break main
Breakpoint 1 at 0xd80: file himenoBMTxpa.c, line 71.
(gdb) r
Starting program: /Users/howarth/a.out 
darwin_set_sstep: unknown flavour: 4
Error calling thread_get_state for GP registers for thread 0x8451lxwarning:
Mach error at "i386-darwin-nat.c:118" in function
"i386_darwin_fetch_inferior_registers": (os/kern) invalid argument (0x4)

The normal build targeting x86_64-apple-darwin10.8.0 reports the expected...

GNU gdb (GDB) 7.4
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin10.8.0".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.

and functions normally when running programs with breakpoints set.

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[howarth at bromo dot med.uc.edu]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

Jack Howarth <howarth at bromo dot med.uc.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gingold at adacore dot com

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[cvs-commit at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2012-04-02 11:57:34 UTC ---
CVSROOT:    /cvs/src
Module name:    src
Changes by:    gingold@sourceware.org    2012-04-02 11:57:30

Modified files:
    gdb            : ChangeLog darwin-nat.c 

Log message:
    2012-04-02  Tristan Gingold  <gingold@adacore.com>

    PR gdb/13901
    * darwin-nat.c (darwin_execvp): Sey binary preference.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.14073&r2=1.14074
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/darwin-nat.c.diff?cvsroot=src&r1=1.31&r2=1.32

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[gingold at adacore dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

gingold@adacore.com <gingold at adacore dot com> changed:

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

--- Comment #2 from gingold at adacore dot com <gingold at adacore dot com> 2012-04-02 11:59:29 UTC ---
Fixed by the patch.

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[howarth at bromo dot med.uc.edu]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

Jack Howarth <howarth at bromo dot med.uc.edu> changed:

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

--- Comment #3 from Jack Howarth <howarth at bromo dot med.uc.edu> 2012-04-02 13:13:59 UTC ---
The propose patch almost fixes this PR but not quite. While this patch when
applied to gdb 7.4 resoives the failures when gdb debugs i386 executables, if
the i386-apple-darwin10 build of gdb is used to debug a x86_64 executable the
failures remain...


% clang -arch x86_64 -g himenoBMTxpa.c
% file ./a.out
./a.out: Mach-O 64-bit executable x86_64
% fsf-gdb ./a.out
GNU gdb (GDB) 7.4
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i386-apple-darwin10.8.0".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...

warning: A handler for the OS ABI "Darwin" is not built into this configuration
of GDB.  Attempting to continue with the default i386:x86-64 settings.

Reading symbols from /Users/howarth/a.out...Reading symbols from
/Users/howarth/a.out.dSYM/Contents/Resources/DWARF/a.out...done.
done.
(gdb) break main
Breakpoint 1 at 0xd80: file himenoBMTxpa.c, line 71.
(gdb) r
Starting program: /Users/howarth/a.out 
darwin_set_sstep: unknown flavour: 4
Error calling thread_get_state for GP registers for thread 0x5379lxwarning:
Mach error at "i386-darwin-nat.c:118" in function
"i386_darwin_fetch_inferior_registers": (os/kern) invalid argument (0x4)
(gdb)

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[gingold at adacore dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

gingold@adacore.com <gingold at adacore dot com> changed:

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

--- Comment #4 from gingold at adacore dot com <gingold at adacore dot com> 2012-04-02 13:20:28 UTC ---
No, that's a different issue: you haven't configured gdb for x86-64.
Try with: --enable-64-bit-bfd

Tristan.

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[howarth at bromo dot med.uc.edu]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

--- Comment #5 from Jack Howarth <howarth at bromo dot med.uc.edu> 2012-04-02 13:50:37 UTC ---
(In reply to comment #4)
> No, that's a different issue: you haven't configured gdb for x86-64.
> Try with: --enable-64-bit-bfd 
> 
> Tristan.

Confirmed that --enable-64-bit-bfd solves the problem debugging x86_64
binaries.
Considering that the pool of EMT64 capable Intel macs greatly outways that of
non-EMT64
units, shouldn't configure default to adding --enable-64-bit-bfd for
i386-apple-darwin?

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[gingold at adacore dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

--- Comment #6 from gingold at adacore dot com <gingold at adacore dot com> 2012-04-02 13:57:55 UTC ---
On Apr 2, 2012, at 3:50 PM, howarth at bromo dot med.uc.edu wrote:

> http://sourceware.org/bugzilla/show_bug.cgi?id=13901
> 
> --- Comment #5 from Jack Howarth <howarth at bromo dot med.uc.edu> 2012-04-02 13:50:37 UTC ---
> (In reply to comment #4)
>> No, that's a different issue: you haven't configured gdb for x86-64.
>> Try with: --enable-64-bit-bfd 
>> 
>> Tristan.
> 
> Confirmed that --enable-64-bit-bfd solves the problem debugging x86_64
> binaries.
> Considering that the pool of EMT64 capable Intel macs greatly outways that of
> non-EMT64
> units, shouldn't configure default to adding --enable-64-bit-bfd for
> i386-apple-darwin?


No, to be in line with all other platforms: there is a performance impact on
bfd side.

There is nothing darwin specific here.

Tristan.

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[howarth at bromo dot med.uc.edu]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

--- Comment #7 from Jack Howarth <howarth at bromo dot med.uc.edu> 2012-04-02 14:34:09 UTC ---
On Mon, Apr 02, 2012 at 01:57:55PM +0000, gingold at adacore dot com wrote:
> http://sourceware.org/bugzilla/show_bug.cgi?id=13901
> 
> --- Comment #6 from gingold at adacore dot com <gingold at adacore dot com> 2012-04-02 13:57:55 UTC ---
> On Apr 2, 2012, at 3:50 PM, howarth at bromo dot med.uc.edu wrote:
> 
> > http://sourceware.org/bugzilla/show_bug.cgi?id=13901
> > 
> > --- Comment #5 from Jack Howarth <howarth at bromo dot med.uc.edu> 2012-04-02 13:50:37 UTC ---
> > (In reply to comment #4)
> >> No, that's a different issue: you haven't configured gdb for x86-64.
> >> Try with: --enable-64-bit-bfd 
> >> 
> >> Tristan.
> > 
> > Confirmed that --enable-64-bit-bfd solves the problem debugging x86_64
> > binaries.
> > Considering that the pool of EMT64 capable Intel macs greatly outways that of
> > non-EMT64
> > units, shouldn't configure default to adding --enable-64-bit-bfd for
> > i386-apple-darwin?
> 
> 
> No, to be in line with all other platforms: there is a performance impact on
> bfd side.

Tristan,
   How bad is the performance impact? I suspect that fink will want the i386
fink
gdb package to support x86_64 binaries as well. Also perhaps the error handling
for 
the default build of i386 gdb could be improved. It would be nicer if the
default
i386 build of gdb simply refused to load x86_64 binaries and emitted an error
message
indicating that the gdb wasn't built with --enable-64-bit-bfd to aid end-users
with 
solving the problem.
           Jack

> 
> There is nothing darwin specific here.
> 
> Tristan.
> 
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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[gingold at adacore dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

--- Comment #8 from gingold at adacore dot com <gingold at adacore dot com> 2012-04-02 14:40:56 UTC ---
On Apr 2, 2012, at 4:34 PM, howarth at bromo dot med.uc.edu wrote:

> http://sourceware.org/bugzilla/show_bug.cgi?id=13901
> 
> --- Comment #7 from Jack Howarth <howarth at bromo dot med.uc.edu> 2012-04-02 14:34:09 UTC ---
> On Mon, Apr 02, 2012 at 01:57:55PM +0000, gingold at adacore dot com wrote:
>> http://sourceware.org/bugzilla/show_bug.cgi?id=13901
>> 
>> --- Comment #6 from gingold at adacore dot com <gingold at adacore dot com> 2012-04-02 13:57:55 UTC ---
>> On Apr 2, 2012, at 3:50 PM, howarth at bromo dot med.uc.edu wrote:
>> 
>>> http://sourceware.org/bugzilla/show_bug.cgi?id=13901
>>> 
>>> --- Comment #5 from Jack Howarth <howarth at bromo dot med.uc.edu> 2012-04-02 13:50:37 UTC ---
>>> (In reply to comment #4)
>>>> No, that's a different issue: you haven't configured gdb for x86-64.
>>>> Try with: --enable-64-bit-bfd 
>>>> 
>>>> Tristan.
>>> 
>>> Confirmed that --enable-64-bit-bfd solves the problem debugging x86_64
>>> binaries.
>>> Considering that the pool of EMT64 capable Intel macs greatly outways that of
>>> non-EMT64
>>> units, shouldn't configure default to adding --enable-64-bit-bfd for
>>> i386-apple-darwin?
>> 
>> 
>> No, to be in line with all other platforms: there is a performance impact on
>> bfd side.
> 
> Tristan,
>   How bad is the performance impact?

All address handling in bfd will be 64 bits instead of 32 bits.

> I suspect that fink will want the i386
> fink
> gdb package to support x86_64 binaries as well. Also perhaps the error handling
> for 
> the default build of i386 gdb could be improved. It would be nicer if the
> default
> i386 build of gdb simply refused to load x86_64 binaries and emitted an error
> message
> indicating that the gdb wasn't built with --enable-64-bit-bfd to aid end-users
> with 
> solving the problem.

There is already a generic error message:

warning: A handler for the OS ABI "Darwin" is not built into this configuration
of GDB.  Attempting to continue with the default i386:x86-64 settings.

Not very user friendly, I agree.

IMHO, this is an issue for fink maintainers, most final users don't compiler
gdb themselves.

Might be interesting to understand how ELF handles that.

Tristan.

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[cvs-commit at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

--- Comment #9 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2012-04-11 13:17:10 UTC ---
CVSROOT:    /cvs/src
Module name:    src
Changes by:    gingold@sourceware.org    2012-04-11 13:17:05

Modified files:
    gdb            : ChangeLog darwin-nat.c 

Log message:
    2012-04-11  Tristan Gingold  <gingold@adacore.com>

    PR gdb/13901
    * darwin-nat.c (darwin_resume_thread): Call darwin_set_sstep only
    in case of change.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.14094&r2=1.14095
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/darwin-nat.c.diff?cvsroot=src&r1=1.33&r2=1.34

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[cvs-commit at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=13901

--- Comment #10 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2012-04-11 13:42:52 UTC ---
CVSROOT:    /cvs/src
Module name:    src
Changes by:    gingold@sourceware.org    2012-04-11 13:42:44

Modified files:
    gdb            : ChangeLog darwin-nat.c 

Log message:
    2012-04-11  Tristan Gingold  <gingold@adacore.com>

    PR gdb/13901
    * darwin-nat.c (darwin_execvp): Revert previous patch.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.14095&r2=1.14096
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/darwin-nat.c.diff?cvsroot=src&r1=1.34&r2=1.35

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[jackie.rosen at hushmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13901

Jackie Rosen <jackie.rosen at hushmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jackie.rosen at hushmail dot com

--- Comment #11 from Jackie Rosen <jackie.rosen at hushmail dot com> ---
*** Bug 260998 has been marked as a duplicate of this bug. ***
Seen from the domain http://volichat.com
Page where seen: http://volichat.com/adult-chat-rooms
Marked for reference. Resolved as fixed @bugzilla.

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[Bug gdb/13901] no handler for the OS ABI "Darwin" when gdb 7.4 built as i386-apple-darwin10.8.0

[schwab at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=13901

Andreas Schwab <schwab at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|jackie.rosen at hushmail dot com   |

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