Alexandre Julliard : ntdll: Don't clear x86-64 registers when receiving a 32-bit context.

Alexandre Julliard julliard at winehq.org
Wed Dec 1 15:23:48 CST 2021


Module: wine
Branch: master
Commit: 47f59be21f4601a5e5014df073d076f76251e59d
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=47f59be21f4601a5e5014df073d076f76251e59d

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Wed Dec  1 12:06:29 2021 +0100

ntdll: Don't clear x86-64 registers when receiving a 32-bit context.

They can still be valid if running in Wow64 mode.

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

---

 dlls/ntdll/unix/thread.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/dlls/ntdll/unix/thread.c b/dlls/ntdll/unix/thread.c
index 7a32f36920f..57d355e96d2 100644
--- a/dlls/ntdll/unix/thread.c
+++ b/dlls/ntdll/unix/thread.c
@@ -850,14 +850,6 @@ static NTSTATUS context_from_server( void *dst, const context_t *from, USHORT ma
             to->Rbx = from->integer.i386_regs.ebx;
             to->Rsi = from->integer.i386_regs.esi;
             to->Rdi = from->integer.i386_regs.edi;
-            to->R8  = 0;
-            to->R9  = 0;
-            to->R10 = 0;
-            to->R11 = 0;
-            to->R12 = 0;
-            to->R13 = 0;
-            to->R14 = 0;
-            to->R15 = 0;
         }
         if ((from->flags & SERVER_CTX_SEGMENTS) && (to_flags & CONTEXT_AMD64_SEGMENTS))
         {




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