Alexandre Julliard : include: Allow 64-bit pointers to pass through LDT functions unmolested.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a518edc3aabeaabf581775584389309a360ff8ed
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=a518edc3aabeaabf5817755843...

Author: Alexandre Julliard 
Date:   Mon Dec 15 13:31:52 2008 +0100

include: Allow 64-bit pointers to pass through LDT functions unmolested.

---

include/wine/library.h |    6 ++++++
 include/winnt.h        |    3 +++
 2 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/include/wine/library.h b/include/wine/library.h
index 52186c6..1102390 100644
--- a/include/wine/library.h
+++ b/include/wine/library.h
@@ -135,6 +135,9 @@ static inline void wine_ldt_set_base( LDT_ENTRY *ent, const void *base )
     ent->BaseLow               = (WORD)(ULONG_PTR)base;
     ent->HighWord.Bits.BaseMid = (BYTE)((ULONG_PTR)base >> 16);
     ent->HighWord.Bits.BaseHi  = (BYTE)((ULONG_PTR)base >> 24);
+#ifdef _WIN64
+    ent->BaseHigh              = (ULONG_PTR)base >> 32;
+#endif
 }
 static inline void wine_ldt_set_limit( LDT_ENTRY *ent, unsigned int limit )
 {
@@ -145,6 +148,9 @@ static inline void wine_ldt_set_limit( LDT_ENTRY *ent, unsigned int limit )
 static inline void *wine_ldt_get_base( const LDT_ENTRY *ent )
 {
     return (void *)(ent->BaseLow |
+#ifdef _WIN64
+                    (ULONG_PTR)ent->BaseHigh << 32 |
+#endif
                     (ULONG_PTR)ent->HighWord.Bits.BaseMid << 16 |
                     (ULONG_PTR)ent->HighWord.Bits.BaseHi << 24);
 }
diff --git a/include/winnt.h b/include/winnt.h
index 083bd96..580c2e5 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -846,6 +846,9 @@ typedef struct _LDT_ENTRY {
             unsigned    BaseHi : 8;
         } Bits;
     } HighWord;
+#ifdef _WIN64  /* FIXME: 64-bit code should not be using the LDT */
+    DWORD BaseHigh;
+#endif
 } LDT_ENTRY, *PLDT_ENTRY;

/* x86-64 context definitions */