[reactos] 28/179: [SDK] Add WOW64_CONTEXT structure

[Jérôme Gardou]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=4084b5f214515a6268c50…

commit 4084b5f214515a6268c507311bddc3db11a3abce
Author:     Jérôme Gardou <jerome.gardou(a)reactos.org>
AuthorDate: Fri Sep 11 14:28:03 2020 +0200
Commit:     Jérôme Gardou <jerome.gardou(a)reactos.org>
CommitDate: Wed Sep 16 10:35:34 2020 +0200

    [SDK] Add WOW64_CONTEXT structure
---
 sdk/include/xdk/winnt_old.h | 69 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/sdk/include/xdk/winnt_old.h b/sdk/include/xdk/winnt_old.h
index e935859d952..09b774cbfca 100644
--- a/sdk/include/xdk/winnt_old.h
+++ b/sdk/include/xdk/winnt_old.h
@@ -2099,6 +2099,75 @@ typedef struct _CONTEXT
 #endif
 typedef CONTEXT *PCONTEXT;
 
+/* The WoW64 context */
+#define WOW64_CONTEXT_i386 0x00010000
+#define WOW64_CONTEXT_i486 0x00010000
+#define WOW64_CONTEXT_CONTROL (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000001))
+#define WOW64_CONTEXT_INTEGER (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000002))
+#define WOW64_CONTEXT_SEGMENTS (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000004))
+#define WOW64_CONTEXT_FLOATING_POINT (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000008))
+#define WOW64_CONTEXT_DEBUG_REGISTERS (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000010))
+#define WOW64_CONTEXT_EXTENDED_REGISTERS (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000020))
+#define WOW64_CONTEXT_FULL (WOW64_CONTEXT_CONTROL | WOW64_CONTEXT_INTEGER |
WOW64_CONTEXT_SEGMENTS)
+#define WOW64_CONTEXT_ALL (WOW64_CONTEXT_CONTROL | WOW64_CONTEXT_INTEGER | \
+                           WOW64_CONTEXT_SEGMENTS | WOW64_CONTEXT_FLOATING_POINT | \
+                           WOW64_CONTEXT_DEBUG_REGISTERS |
WOW64_CONTEXT_EXTENDED_REGISTERS)
+
+#define WOW64_CONTEXT_XSTATE (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000040))
+
+#define WOW64_CONTEXT_EXCEPTION_ACTIVE      0x08000000
+#define WOW64_CONTEXT_SERVICE_ACTIVE        0x10000000
+#define WOW64_CONTEXT_EXCEPTION_REQUEST     0x40000000
+#define WOW64_CONTEXT_EXCEPTION_REPORTING   0x80000000
+
+#define WOW64_SIZE_OF_80387_REGISTERS 80
+#define WOW64_MAXIMUM_SUPPORTED_EXTENSION 512
+
+typedef struct _WOW64_FLOATING_SAVE_AREA
+{
+    DWORD   ControlWord;
+    DWORD   StatusWord;
+    DWORD   TagWord;
+    DWORD   ErrorOffset;
+    DWORD   ErrorSelector;
+    DWORD   DataOffset;
+    DWORD   DataSelector;
+    BYTE    RegisterArea[WOW64_SIZE_OF_80387_REGISTERS];
+    DWORD   Cr0NpxState;
+} WOW64_FLOATING_SAVE_AREA, *PWOW64_FLOATING_SAVE_AREA;
+
+#include "pshpack4.h"
+typedef struct _WOW64_CONTEXT
+{
+    DWORD ContextFlags;
+    DWORD Dr0;
+    DWORD Dr1;
+    DWORD Dr2;
+    DWORD Dr3;
+    DWORD Dr6;
+    DWORD Dr7;
+    WOW64_FLOATING_SAVE_AREA FloatSave;
+    DWORD SegGs;
+    DWORD SegFs;
+    DWORD SegEs;
+    DWORD SegDs;
+    DWORD Edi;
+    DWORD Esi;
+    DWORD Ebx;
+    DWORD Edx;
+    DWORD Ecx;
+    DWORD Eax;
+    DWORD Ebp;
+    DWORD Eip;
+    DWORD SegCs;
+    DWORD EFlags;
+    DWORD Esp;
+    DWORD SegSs;
+    BYTE ExtendedRegisters[WOW64_MAXIMUM_SUPPORTED_EXTENSION];
+} WOW64_CONTEXT, *PWOW64_CONTEXT;
+#include "poppack.h"
+
+
 #define EXCEPTION_MAXIMUM_PARAMETERS 15
 #define EXCEPTION_NONCONTINUABLE  0x01
 #define EXCEPTION_UNWINDING       0x02