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103 lines
4.2 KiB
Plaintext
103 lines
4.2 KiB
Plaintext
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ReactOS Microsoft Visual C/C++ 6.0 IDE files
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This is the Microsoft Visual C/C++ 6.0 project workspace and project
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files for a few of the ReactOS binaries. They are ONLY included as a
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convenience, and is NOT to be considered supported, or even correct.
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If you build a binary that misbehaves using these files, you _might_
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be able to get in touch with someone to fix the problem
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BUT DO NOT COUNT ON IT!
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The only supported build system for ReactOS is the one documented at
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www.reactos.com.
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------------------------------------------------------------------
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Please, before you start playing with this, read the whole of
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this document.
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Before you can use these project files, you _need_ to make a successful
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build using the normal ReactOS build system. There are some vital files
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that needs to be created, and currently only the normal build creates these.
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Once that is done, you need to generate the kernel-mode service "table"
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file by running nmake (from this point on you can use the "native"
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MSVC tools) from the directory MSVC6\iface\native.
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This will generate MSVC6\ntoskrnl\nt_zw_msvc.c, an MSVC compatible inline-
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assembler version of the file otherwise known as reactos\ntoskrnl\nt\zw.c.
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Next, go to def_converter and run nmake. This builds the tool to convert
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the .def files for HAL and the kernel from the MinGW format to something
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more suitable for the MSVC linker, and also generates these .def files
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to their target location [1].
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Now you should be set to fire up the IDE and load the project workspace.
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When building HAL or the kernel for the first time using these
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project files, just doing it the "normal" way _will not work_.
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The linker will complain about missing library, and it will fail.
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The reason for this is a circular dependency between these two binaries.
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Currently you need to follow these procedures [2]:
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- Select hal as your active project.
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- Select Project/Settings.
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- Select the Link tab.
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- Select "General" from the Category drop-list.
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- Temporary remove the explicit linker library
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(e.g. "..\ntoskrnl\Debug\ntoskrnl.lib")
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- Select "Customize" from the Category drop-list.
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- Check the "Force file output" checkbox.
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- Build hal.
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- Uncheck "Force file output".
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- Put back the removed import library.
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- Now build the ntoskrnl. Do NOT try to build hal again until
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you have sucessfully built the kernel, and the linker has
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generated its import library!
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- Now you can "Clean" hal, and build it as usual.
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If everything worked as expected, you should now have both ntoskrnl.exe
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and hal.dll freshly built.
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LIMITATIONS/DEVIATIONS (from the MinGW build):
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- Since there can only be one resource file/project, the kernel had
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to choose between either its version resource, or its message table.
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The messages won.
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- Do NOT open the .rc files in the IDE's resource editor. Chances are
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it will assume ownership over them and fill them up with at least
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conditional compilation macros.
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NOTES:
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[1] This is needed due to differences in handling of decorated names
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in .def files. While both MinGW GCC and MSVC generates decorated names
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in the same way for at least plain cdecl and stdcall C functions, the
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MSVC linker expects names in the .def file to be either
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- an exact match of the decorated name, in case it exports the
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decorated name from the linked binary, or
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- just the name without any decoration, in case it exports just the
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name of the symbol from the linked binary (to allow for e.g.
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GetProcAddress using the undecorated name) - but keeps the decorated
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names in the import library to handle and "redirect" linker requests
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for those decorated symbols, and point them to the undercorated names
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in the binary exporting them - so that a binary A, at link time,
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importing symbols from binary B of the form "_name@0" will resolve
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that symbol from the import library, but the linked binary A will
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reference it as just "name".
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The ROS .def files contains a mix, "half-decorated", where the leading
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undescores are missing, but the trailing "@n" (for stdcall functions)
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are present.
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[2] Theoretically it could be possible to use a hal.lib generated by the
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following procedure, removing the need for the manual steps above.
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cd MSVC6\hal\Debug
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lib \def:..\..\..\reactos\hal\hal\hal.def
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but I have not tested it, and take no responsibility for its effectiveness.
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