Alexandre Julliard : ntdll: Implement RtlIsProcessorFeaturePresent().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b61d425502ce7e651a753c072e2840cb6274b3c9
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=b61d425502ce7e651a753c072e2840cb6274b3c9

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Thu Jan 24 17:33:16 2019 +0100

ntdll: Implement RtlIsProcessorFeaturePresent().

Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/kernel32/cpu.c   | 14 ++------------
 dlls/ntdll/nt.c       |  8 ++++++++
 dlls/ntdll/ntdll.spec |  1 +
 include/winternl.h    |  1 +
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/dlls/kernel32/cpu.c b/dlls/kernel32/cpu.c
index 84385c7..9445d0b 100644
--- a/dlls/kernel32/cpu.c
+++ b/dlls/kernel32/cpu.c
@@ -46,8 +46,6 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(reg);
 
-#define SHARED_DATA     ((KSHARED_USER_DATA*)0x7ffe0000)
-
 /****************************************************************************
  *		QueryPerformanceCounter (KERNEL32.@)
  *
@@ -200,18 +198,10 @@ VOID WINAPI GetNativeSystemInfo(
  * 			IsProcessorFeaturePresent	[KERNEL32.@]
  *
  * Determine if the cpu supports a given feature.
- * 
- * RETURNS
- *  TRUE, If the processor supports feature,
- *  FALSE otherwise.
  */
-BOOL WINAPI IsProcessorFeaturePresent (
-	DWORD feature	/* [in] Feature number, (PF_ constants from "winnt.h") */) 
+BOOL WINAPI IsProcessorFeaturePresent ( DWORD feature )
 {
-  if (feature < PROCESSOR_FEATURE_MAX)
-    return SHARED_DATA->ProcessorFeatures[feature];
-  else
-    return FALSE;
+    return RtlIsProcessorFeaturePresent( feature );
 }
 
 /***********************************************************************
diff --git a/dlls/ntdll/nt.c b/dlls/ntdll/nt.c
index dcf9123..5138da4 100644
--- a/dlls/ntdll/nt.c
+++ b/dlls/ntdll/nt.c
@@ -2230,6 +2230,14 @@ static NTSTATUS get_firmware_info(SYSTEM_FIRMWARE_TABLE_INFORMATION *sfti, ULONG
 
 #endif
 
+/***********************************************************************
+ * RtlIsProcessorFeaturePresent [NTDLL.@]
+ */
+BOOLEAN WINAPI RtlIsProcessorFeaturePresent( UINT feature )
+{
+    return feature < PROCESSOR_FEATURE_MAX && user_shared_data->ProcessorFeatures[feature];
+}
+
 /******************************************************************************
  * NtQuerySystemInformation [NTDLL.@]
  * ZwQuerySystemInformation [NTDLL.@]
diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index 09f9098..649774f 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -756,6 +756,7 @@
 @ stub RtlIsGenericTableEmpty
 # @ stub RtlIsGenericTableEmptyAvl
 @ stdcall RtlIsNameLegalDOS8Dot3(ptr ptr ptr)
+@ stdcall RtlIsProcessorFeaturePresent(long)
 # @ stub RtlIsRangeAvailable
 @ stdcall RtlIsTextUnicode(ptr long ptr)
 # @ stub RtlIsThreadWithinLoaderCallout
diff --git a/include/winternl.h b/include/winternl.h
index 9c88613..a3adba3 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -2741,6 +2741,7 @@ NTSYSAPI BOOL      WINAPI RtlIsCriticalSectionLocked(RTL_CRITICAL_SECTION *);
 NTSYSAPI BOOL      WINAPI RtlIsCriticalSectionLockedByThread(RTL_CRITICAL_SECTION *);
 NTSYSAPI ULONG     WINAPI RtlIsDosDeviceName_U(PCWSTR);
 NTSYSAPI BOOLEAN   WINAPI RtlIsNameLegalDOS8Dot3(const UNICODE_STRING*,POEM_STRING,PBOOLEAN);
+NTSYSAPI BOOLEAN   WINAPI RtlIsProcessorFeaturePresent(UINT);
 NTSYSAPI BOOLEAN   WINAPI RtlIsTextUnicode(LPCVOID,INT,INT *);
 NTSYSAPI BOOLEAN   WINAPI RtlIsValidHandle(const RTL_HANDLE_TABLE *, const RTL_HANDLE *);
 NTSYSAPI BOOLEAN   WINAPI RtlIsValidIndexHandle(const RTL_HANDLE_TABLE *, ULONG Index, RTL_HANDLE **);