[newlib-cygwin] Cygwin: drop a few minor references to WOW64

[Corinna Vinschen <corinna@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=d4df9c6de1842397c70fc3e8378f06e799af9d6c

commit d4df9c6de1842397c70fc3e8378f06e799af9d6c
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Mon Mar 7 13:11:34 2022 +0100

    Cygwin: drop a few minor references to WOW64
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/fhandler_registry.cc | 5 +----
 winsup/cygwin/ntdll.h              | 2 +-
 winsup/cygwin/path.cc              | 3 +--
 winsup/cygwin/uinfo.cc             | 2 +-
 4 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/winsup/cygwin/fhandler_registry.cc b/winsup/cygwin/fhandler_registry.cc
index 747b76de3..b6c8aee5f 100644
--- a/winsup/cygwin/fhandler_registry.cc
+++ b/winsup/cygwin/fhandler_registry.cc
@@ -448,10 +448,7 @@ fhandler_registry::set_name (path_conv &in_pc)
       prefix_len += 2;
     }
   else if (strncasematch (in_pc.get_posix (), "/proc/registry64", 16))
-    {
-      wow64 = KEY_WOW64_64KEY;
-      prefix_len += 2;
-    }
+    prefix_len += 2;
   fhandler_base::set_name (in_pc);
 }
 
diff --git a/winsup/cygwin/ntdll.h b/winsup/cygwin/ntdll.h
index 59c396676..cd455ebfc 100644
--- a/winsup/cygwin/ntdll.h
+++ b/winsup/cygwin/ntdll.h
@@ -1109,7 +1109,7 @@ typedef struct _PROCESS_BASIC_INFORMATION
   NTSTATUS ExitStatus;
   PPEB PebBaseAddress;
   KAFFINITY AffinityMask;
-  KPRIORITY BasePriority;	/* !!!Broken on WOW64!!! */
+  KPRIORITY BasePriority;
   ULONG_PTR UniqueProcessId;
   ULONG_PTR InheritedFromUniqueProcessId;
 } PROCESS_BASIC_INFORMATION, *PPROCESS_BASIC_INFORMATION;
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index b00f4c4f8..0ccdf9832 100644
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -4765,8 +4765,7 @@ find_fast_cwd ()
       bool warn = 1;
       USHORT emulated, hosted;
 
-      /* Check if we're running in WOW64 on ARM64.  Check on 64 bit as well,
-	 given that ARM64 Windows 10 provides a x86_64 emulation soon.  Skip
+      /* Check if we're running in WOW64 on ARM64 emulating AMD64.  Skip
 	 warning as long as there's no solution for finding the FAST_CWD
 	 pointer on that system. */
       if (IsWow64Process2 (GetCurrentProcess (), &emulated, &hosted)
diff --git a/winsup/cygwin/uinfo.cc b/winsup/cygwin/uinfo.cc
index 6aae33c92..6173b0324 100644
--- a/winsup/cygwin/uinfo.cc
+++ b/winsup/cygwin/uinfo.cc
@@ -1423,7 +1423,7 @@ cygheap_domain_info::init ()
      even if no NFS name mapping is configured on the machine.  Fortunately,
      the posixAccount and posixGroup schemas are already available in the
      Active Directory default setup. */
-  reg_key reg (HKEY_LOCAL_MACHINE, KEY_READ | KEY_WOW64_64KEY,
+  reg_key reg (HKEY_LOCAL_MACHINE, KEY_READ,
 	       L"SOFTWARE", L"Microsoft", L"ServicesForNFS", NULL);
   if (!reg.error ())
     {