Re: [ros-dev] Autogenerating compiler specific .def files

[Alex Ionescu]

The @16 is not an ordinal, it's the number of arguments on the stack in
bytes.

The .rbuild should define 4 things:

1) Function convention (@fastcall@x, _stdcall@x or _cdecl)
2) Bytes on stack (only relevant for stdcall and fastcall)
3) Ordinal, optional
4) Forward/alias, optional
On Nov 23, 2007 7:04 PM, Marc Piulachs <marc.piulachs(a)codexchange.net>
wrote:

>    Hi All,
>
>
>
>  I have lately seen a big effort to make more modules compilable under
>  Visual C , one of our current problems when building dlls is that our .def
>  files are mingw/gcc specific not directly compatible with msvc or any other
>  future compiler we may support. Currently we are using not very elegant
>  solutions to archive compatibility with msvc like stripping some information
>  from mingw def files. As Alex suggested I think it's a good idea to move
>  that information to rbuild files and let rbuild generate full compatible
>  compiler def files in the intermediate folder. The advantages are obvious.
>
>
>
>  As I have little experience with mingw def files I would like to request
>  some help from other developers to evaluate/validate my proposal.
>
>
>
>  From my research on the ros codebase I have found that possible
>  variations:
>
>
>
>  - CcRosInitializeFileCache@8
>
>  - FsRtlGetFileSize
>
>  - @HalExamineMBR@16
>
>  - PsChargeProcessNonPagedPoolQuota@4=PsDereferenceImpersonationToken@4
>
>  - ConvertSecurityDescriptorToAccessNamedA=
>  ConvertSecurityDescriptorToAccessA@28
>
>  - GetSecurityDescriptorLength(a)4=NTDLL.RtlLengthSecurityDescriptor
>
>  - ??1type_info@@UAE@XZ=__thiscall_MSVCRT_type_info_dtor @15
>
>  - ChkdskEx=VfatChkdsk@24
>
>
>
>  My proposed syntax is as following and it should support all of the above
>  cases:
>
>
>
>  <exportfunction name="CcRosInitializeFileCache" ordinal="8" />
>
>              (required)
>  (optional)
>
>
>
>  <exportfunction name="CcRosInitializeFileCache" ordinal="8"
>  mappedname="PsDereferenceImpersonationToken" mappedordinal="4"/>
>
>              (required)
>  (optional) (optional)
>  (optional)
>
>
>
>  <exportfunction name="GetSecurityDescriptorLength" ordinal="4"
>  mappedname="RtlLengthSecurityDescriptor" mappedordinal="4"
> module="ntdll"/>
>
>              (required)
>  (optional) (optional)
>  (optional)            (optional)
>
>
>
>  With this information rbuild will generate a modulename_gcc.def when you
>  type "make" and modulename_msvc.def on the intermediate folder when you type
>  "make msvc".
>
>
>
>  Opinions, comments?
>
>
>
>  Regards,
>
>  Marc
>
>
>
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>
>  

-- 
Best regards,
Alex Ionescu