[ros-svn] [ion] 16542: Second part of patch, implements the new RTL functions which will be used (not used by kernel yet).

[ion at svn.reactos.com]

Second part of patch, implements the new RTL functions which will be used (not used by kernel yet). 
    - RtlCreateUserProcess:
        * Created RtlpInitEnvironment to manage Environment Block creation. Rougly based on
          old KlInitPeb code but with some optimizations.
        * Don't ignore Process Security Descriptor if one was specified.
        * Don't ignore ZeroBits, get correct entrypoint, and don't assume PEB address.
        * Don't close handle of section before closing process handle on failure.
        * Support new undocumented flag which pre-allocates 1MB of memory for Native Processes
        * FIXME: Hande duplication should be done, but wasn't and still isn't.
    
    - RtlpCreateUserStack:
        * New function to create a stack for a Thread, similar to BasepCreateStack but
          has some differences related to StackCommit/StackReserve.
        * Also create Guard Page
        
    - RtlpFreeUserStack:
        * Undoes what the function above does, in case of failure in code using it.
        
    - RtlCreateUserThread:
        * Use the new functions instead of rosrtl.
        
    - RtlInitializeContext:
        * New function similar to BasepInitializeContext but;
            > Uses a single entrypoint, not many possible thunks like Kernel32 (no need)
            > The starting EFLAGS is Interrupts Enabled, not IOPL 3.
            > We don't initialize the same Context Flags
            > The initial context registers are different
            
    - RtlFreeUserThreadStack
        * Don't assume the TEB address
          
    - RtlExitUserThread
        * Remove deprecated stack-switching semantics and use new TEB flag to tell the Kernel
          to deallocate the stack for us.


Updated files:
trunk/reactos/lib/kernel32/process/create.c
trunk/reactos/lib/ntdll/rtl/process.c
trunk/reactos/lib/rtl/process.c
trunk/reactos/lib/rtl/thread.c
trunk/reactos/ntoskrnl/mm/pe.c