[Bug 14364] New: enhance loader and wine_main_preload_info for valgrind

http://bugs.winehq.org/show_bug.cgi?id=14364

Summary: enhance loader and wine_main_preload_info for valgrind
           Product: Wine
           Version: 1.0.0
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: loader
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=14661)
 --> (http://bugs.winehq.org/attachment.cgi?id=14661)
loader co-operates with valgrind about wine_main_preload_info

wine-loader can co-operate with valgrind and other debugging tools.

1) New Elf32_auxv_t tag AT_WINE_PRELOAD_INFO for when symbol
wine_main_preload_info is not visible, especially valgrind tools.  binutils is
not  your friend: "ld: --export-dynamic fails if no undefined symbols"
http://sourceware.org/bugzilla/show_bug.cgi?id=6468
2) Store pathname of pre-loader at end of wine_main_preload_info, in the .addr
of the terminating 0==.size.  This allows easy co-operation with valgrind tools
and other debuggers.
3) Pending linux kernel patch for Elf32_auxv_t tag AT_EXECFN simplifies
co-operation and virtualization in general.  LKML, 2008-05-01,
"execve filename: document and export via auxiliary vector".

Patch is attached, and will be sent to [e-mail].

[Bug 14364] enhance loader and wine_main_preload_info for valgrind

http://bugs.winehq.org/show_bug.cgi?id=14364

Austin English  changed:

What    |Removed                     |Added
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           Keywords|                            |patch

--- Comment #1 from Austin English   2009-01-05 11:12:25 ---
Is this still an issue in current (1.1.12 or newer) wine? Would you mind
resubmitting the patch and asking for comments?

[Bug 14364] enhance loader and wine_main_preload_info for valgrind

http://bugs.winehq.org/show_bug.cgi?id=14364

--- Comment #2 from Austin English   2009-07-16 13:10:39 ---
This area has changed a lot recently, might be worth taking another
look/re-valgrinding.

[Bug 14364] enhance loader and wine_main_preload_info for valgrind

http://bugs.winehq.org/show_bug.cgi?id=14364

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

[Bug 14364] enhance loader and wine_main_preload_info for valgrind

http://bugs.winehq.org/show_bug.cgi?id=14364

--- Comment #3 from Austin English  2012-03-19 14:02:29 CDT ---
Still present.

[Bug 14364] enhance loader and wine_main_preload_info for valgrind

https://bugs.winehq.org/show_bug.cgi?id=14364

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |download

[Bug 14364] enhance loader and wine_main_preload_info for valgrind

https://bugs.winehq.org/show_bug.cgi?id=14364

Sebastian Lackner  changed:

What    |Removed                     |Added
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                 CC|                            |[e-mail]

--- Comment #4 from Sebastian Lackner  ---
It is a bit difficult to guess what this is trying to fix. For me it sounds
like the idea is to make certain information accessible to Valgrind, but I
couldn't find any references to AT_WINE_PRELOAD_INFO in their code. There are
only mailing list discussions, so my assumption would be that similar to some
of the other Valgrind related suggestions, the actual code was never merged. I
would suggest to close this bug report.

[Bug 14364] enhance loader and wine_main_preload_info for valgrind

https://bugs.winehq.org/show_bug.cgi?id=14364

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |ABANDONED

--- Comment #5 from Austin English  ---
(In reply to Sebastian Lackner from comment #4)
> It is a bit difficult to guess what this is trying to fix. For me it sounds
> like the idea is to make certain information accessible to Valgrind, but I
> couldn't find any references to AT_WINE_PRELOAD_INFO in their code. There
> are only mailing list discussions, so my assumption would be that similar to
> some of the other Valgrind related suggestions, the actual code was never
> merged. I would suggest to close this bug report.

Abandoned.

[Bug 14364] enhance loader and wine_main_preload_info for valgrind

https://bugs.winehq.org/show_bug.cgi?id=14364

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #6 from Austin English  ---
Closing.