[Dotgnu-pnet] [patch #7295] LibJit: Added support for windows 64-bit callstack info

[Patrick van Beem]

URL:
  <http://savannah.gnu.org/patch/?7295>

                 Summary: LibJit: Added support for windows 64-bit callstack
info
                 Project: DotGNU Portable.NET
            Submitted by: pvbeem
            Submitted on: Tue 31 Aug 2010 07:36:18 AM GMT
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Added code do generate and request windows structures that describe the
function and it's prolog. This unwind information is used by windows to unwind
the stack when it has to generate a call stack (in case of an exception or in
the debugger).
This can be used like:

  PRUNTIME_FUNCTION pruntimefunction;
  DWORD64           baseaddress;

  if ( jit_function_compile(func) && jit_get_function_boundaries(func,
(void**)&pruntimefunction, (void**)&baseaddress))
  {
    RtlAddFunctionTable(pruntimefunction, 1, baseaddress);
  }

and when you free the function:
  RtlDeleteFunctionTable(pruntimefunction);

Note that at leas Visual Studio 2005 does not use this information to show
the correct call stack in the debugger. WinDbg and Visual Studio 2010 do (did
not try 2008).




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File Attachments:


-------------------------------------------------------
Date: Tue 31 Aug 2010 07:36:18 AM GMT  Name: stackinfo64.zip.zip  Size: 42kB 
 By: pvbeem
The patch and files are based on the version with my previous patch
installed.
<http://savannah.gnu.org/patch/download.php?file_id=21357>

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