================================================================================
win32kbase.sys (C++ host): Rust integration + feature traits
File: C:\Windows\System32\win32kbase.sys  (10.0.26100.8972)
PDB : win32kbase.pdb  (public symbols, 14,235 S_PUB32)
================================================================================

--- Every public symbol containing Rust / Win32kRS / PathToRegion / RgnRust / GdiRust ---
(60 symbols)
  ??0RGNMEMOBJ@@QEAA@AEBVRustAutoHotpatchLockSH@@@Z
  ??0RustAutoHotpatchLockSH@@QEAA@XZ
  ?AllocateAndGetBaseRustExports@@YAJPEBU_SYSTEM_GDI_DRIVER_INFORMATION@@PEAPEAUBaseRustExportsStorage@@@Z
  ?AllocateAndLoadBaseRustExports@@YAJPEBGPEAPEAUBaseRustExportsStorage@@_N@Z
  ?AllocateRegion@RGNMEMOBJ@@SAPEAVREGION@@AEBVRustAutoHotpatchLockSH@@K@Z
  ?bCopy@RGNOBJ@@QEAAHAEBVRustAutoHotpatchLockSH@@AEAV1@@Z
  ?bOffset@RGNOBJ@@QEAAHAEBVRustAutoHotpatchLockSH@@PEBU_POINTL@@@Z
  ?CleanupRustCode@@YAXXZ
  ?GetBaseRustExports@@YAJPEAUBaseRustExportsStorage@@@Z
  ?GetBaseRustGlobals@@YAPEBUBaseRustGlobals@@XZ
  ?GreProbeAndReadFromUntrustedVa@@YAXPEAX_KPEBX11@Z
  ?GreProbeAndWriteToUntrustedVa@@YAXPEAX_KPEBX11@Z
  ?GreProbeUntrustedVaRange@@YAXPEBX_K11@Z
  ?HotswapBaseRustBinary@@YAJPEBG@Z
  ?iCombine@RGNOBJ@@QEAAJAEBVRustAutoHotpatchLockSH@@AEAV1@1J@Z
  ?iComplexity@RGNOBJ@@QEBAJAEBVRustAutoHotpatchLockSH@@@Z
  ?RegionCore_bContain_region@Win32kRS@@YAHPEBVREGION_CORE@@0@Z
  ?RegionCore_bCopy@Win32kRS@@YA_NPEAVREGION_CORE@@PEBV2@@Z
  ?RegionCore_bEqual@Win32kRS@@YAHPEBVREGION_CORE@@0@Z
  ?RegionCore_bExpand@Win32kRS@@YAHPEAVREGION_CORE@@K@Z
  ?RegionCore_bMerge@Win32kRS@@YAHPEAVREGION_CORE@@PEBV2@1E@Z
  ?RegionCore_bOffset@Win32kRS@@YAHPEAVREGION_CORE@@PEBU_POINTL@@@Z
  ?RegionCore_fill_path_with_outline@Win32kRS@@YAHPEBVREGION_CORE@@AEAVEPATHOBJ@@PEBVEXFORMOBJ@@@Z
  ?RegionCore_get_pScan_mut@Win32kRS@@YAPEAVSCAN@@PEAVREGION_CORE@@@Z
  ?RegionCore_get_pscnTail_mut@Win32kRS@@YAPEAVSCAN@@PEAVREGION_CORE@@@Z
  ?RegionCore_get_sizeScan@Win32kRS@@YAKPEBVREGION_CORE@@@Z
  ?RegionCore_get_sizeScanAlloc@Win32kRS@@YAKPEBVREGION_CORE@@@Z
  ?RegionCore_iCombine@Win32kRS@@YAJPEAVREGION_CORE@@00J@Z
  ?RegionCore_iComplexity@Win32kRS@@YAJPEBVREGION_CORE@@@Z
  ?RegionCore_iReduce@Win32kRS@@YAJPEAVREGION_CORE@@PEBV2@@Z
  ?RegionCore_is_rect@Win32kRS@@YAHPEBVREGION_CORE@@@Z
  ?RegionCore_numRect@Win32kRS@@YAKPEBVREGION_CORE@@@Z
  ?RegionCore_set_from_path@Win32kRS@@YAHPEAVREGION_CORE@@AEAVEPATHOBJ@@KPEBU_RECTL@@@Z
  ?RegionCore_set_sizeScan@Win32kRS@@YAXPEAVREGION_CORE@@K@Z
  ?RegionCore_set_to_null_scan@Win32kRS@@YAXPEAVREGION_CORE@@@Z
  ?RegionCore_set_to_rect@Win32kRS@@YAXPEAVREGION_CORE@@PEBU_RECTL@@@Z
  ?RegionCore_set_to_rectls@Win32kRS@@YAHPEAVREGION_CORE@@_KPEBU_RECTL@@@Z
  ?RegionCore_sizeSave@Win32kRS@@YAKPEBVREGION_CORE@@@Z
  ?RegionCore_tighten@Win32kRS@@YAXPEAVREGION_CORE@@@Z
  ?RegionCore_upload@Win32kRS@@YAHPEAVREGION_CORE@@PEBJK@Z
  ?RegionCore_upload_for_floodfill@Win32kRS@@YAJPEAVREGION_CORE@@PEBJKPEAJK@Z
  ?RegionCore_vCopy@Win32kRS@@YAXPEAVREGION_CORE@@PEBV2@@Z
  ?RegionCore_vScale@Win32kRS@@YAXPEAVREGION_CORE@@VPOINTFL@@@Z
  ?RgnCaptureLiveMemoryDumpOnZeroSizedScan@@YAXAEBVBaseRustExports@@PEBVREGION_CORE@@@Z
  ?RustOnZeroSizedScanCallback@@YAXXZ
  ?vDeleteREGION@REGION@@AEAAXAEBVRustAutoHotpatchLockSH@@@Z
  ?vDeleteRGNOBJ@RGNOBJ@@QEAAXAEBVRustAutoHotpatchLockSH@@@Z
  ?vGetSubRect@RGNOBJ@@QEBAXAEBVRustAutoHotpatchLockSH@@PEAU_RECTL@@@Z
  ?vInitialize@RGNMEMOBJ@@QEAAXAEBVRustAutoHotpatchLockSH@@K@Z
  ?vStamp@REGION@@AEAAXAEBVRustAutoHotpatchLockSH@@@Z
  ?vUpdate_VisRect@DC@@QEAAXAEBVRustAutoHotpatchLockSH@@PEAVREGION@@@Z
  ?vUpdate_VisRectFastOpt@DC@@QEAAXAEAUSESSION_GLOBALS@Base@Gre@@AEBVRustAutoHotpatchLockSH@@PEAVREGION@@@Z
  ?vUpdateScaledRegions@DC@@QEAAXAEBVRustAutoHotpatchLockSH@@@Z
  Feature_Rust_GDI_REGION__private_descriptor
  Feature_Rust_GDI_REGION__private_featureState
  Feature_Rust_GDI_REGION__private_IsEnabledPreCheck
  Feature_Rust_GDI_REGION__private_reporting
  Feature_Rust_GDI_REGION_logged_traits
  RIMIsCurrentProcessTrusted
  Win32kBaseRustPatchCalloutHandler

KEY OBSERVATIONS
  * The Rust region engine is exported/consumed here as ?RegionCore_*@Win32kRS@@ and
    is invoked from the classic GDI region objects: RGNOBJ::iCombine/bCopy/bOffset,
    RGNMEMOBJ::AllocateRegion/vInitialize, REGION::vDeleteREGION/vStamp, DC::vUpdate_VisRect*,
    each taking a RustAutoHotpatchLockSH (hot-patch lock for the Rust binary).
  * Rust binary is loaded as a hot-patchable module: AllocateAndLoadBaseRustExports,
    HotswapBaseRustBinary, Win32kBaseRustPatchCalloutHandler, CleanupRustCode,
    GetBaseRustGlobals, RgnCaptureLiveMemoryDumpOnZeroSizedScan, RustOnZeroSizedScanCallback.
  * NO symbol named PathToRegion / Win32kRSPathToRegion / RgnRust / GdiRust exists here.

--- WIL feature traits relevant to Rust / Win32k (name -> RtlQueryFeatureConfiguration id) ---
  (feature id = descriptor+0x18, i.e. the value loaded into ECX before RtlQueryFeatureConfiguration;
   proven from win32kbase_rs.sys PopulateInitialConfiguredFeatureStates: 'mov ecx,[rbx+0x18]' then
   'call [RtlQueryFeatureConfiguration]', and from win32kbase.sys GetCurrentFeatureEnabledState.)
  Feature_Rust_GDI_REGION                        id=37356106 (0x023A024A)   live: boot=NOT_FOUND (no config; compiled default applies) | runtime=NOT_FOUND (no config; compiled default applies)
  Feature_Servicing_GdiMsrc99105                 id=58181618 (0x0377C7F2)   live: boot=NOT_FOUND (no config; compiled default applies) | runtime=NOT_FOUND (no config; compiled default applies)
  Feature_Servicing_UmfdDeadlockFix              id=58322696 (0x0379EF08)   live: boot=enabled | runtime=enabled
  Feature_FixWin32kStateAfterSessionDpiUpdate    id=62076925 (0x03B337FD)   live: boot=NOT_FOUND (no config; compiled default applies) | runtime=NOT_FOUND (no config; compiled default applies)

  Total distinct WIL Feature_* traits recorded from win32kbase.sys: 111
  There is NO Feature_Servicing_Win32kRSPathToRegion in this build. The Check Point flag name
  is not present; the closest GDI security-servicing trait is Feature_Servicing_GdiMsrc99105
  (Gdi + MSRC case number 99105). mach2 26100.2314 also lists Servicing_Win32kRSNoisyLKD[_ffi]
  (a different Win32k-Rust servicing flag), but no PathToRegion flag.