Alexandre Julliard : krnl386: Align the stack before calling the entry point.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 7748c76e35993e433bf46faa37b268055f55626e
URL:    https://gitlab.winehq.org/wine/wine/-/commit/7748c76e35993e433bf46faa37b2680...

Author: Alexandre Julliard <julliard(a)winehq.org>
Date:   Mon Jan  8 10:35:28 2024 +0100

krnl386: Align the stack before calling the entry point.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56152

---

 dlls/krnl386.exe16/kernel16_private.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/krnl386.exe16/kernel16_private.h b/dlls/krnl386.exe16/kernel16_private.h
index cd08c40128f..9cf60d068a7 100644
--- a/dlls/krnl386.exe16/kernel16_private.h
+++ b/dlls/krnl386.exe16/kernel16_private.h
@@ -339,7 +339,8 @@ static inline DWORD stack32_pop( CONTEXT *context )
                         "pushl %esp\n\t"             /* context */      \
                         "call " __ASM_STDCALL("RtlCaptureContext",4) "\n\t" \
                         "movl %esp,%esi\n\t"                            \
-                        "pushl %esp\n\t"             /* context */      \
+                        "andl $~3,%esp\n\t"                             \
+                        "pushl %esi\n\t"             /* context */      \
                         "call " __ASM_STDCALL("__regs_" #name,4) "\n\t" \
                         "pushl $0\n\t"               /* alertable */    \
                         "pushl %esi\n\t"             /* context */      \