Jacek Caban : ntdll: Use syscall frame in x86 call_raise_user_exception_dispatcher implementation.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: bbae70bf1e964ee6b30a7e63b0ff03585221d068
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=bbae70bf1e964ee6b30a7e63b0ff03585221d068

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Mon Mar  1 16:51:15 2021 +0100

ntdll: Use syscall frame in x86 call_raise_user_exception_dispatcher implementation.

Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/ntdll/unix/signal_i386.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/dlls/ntdll/unix/signal_i386.c b/dlls/ntdll/unix/signal_i386.c
index 5e6d5fb25eb..0234c7aa6f7 100644
--- a/dlls/ntdll/unix/signal_i386.c
+++ b/dlls/ntdll/unix/signal_i386.c
@@ -1782,16 +1782,10 @@ __ASM_GLOBAL_FUNC( call_user_apc_dispatcher,
 /***********************************************************************
  *           call_raise_user_exception_dispatcher
  */
-__ASM_GLOBAL_FUNC( call_raise_user_exception_dispatcher,
-                   "movl %fs:0x1f8,%eax\n\t"   /* x86_thread_data()->syscall_frame */
-                   "movl 0x1c(%eax),%ebx\n\t"  /* frame->ebx */
-                   "movl 0x28(%eax),%edi\n\t"  /* frame->edi */
-                   "movl 0x2c(%eax),%esi\n\t"  /* frame->esi */
-                   "movl 0x30(%eax),%ebp\n\t"  /* frame->ebp */
-                   "movl 4(%esp),%edx\n\t"     /* dispatcher */
-                   "movl $0,%fs:0x1f8\n\t"
-                   "leal 0x38(%eax),%esp\n\t"
-                   "jmp *%edx" )
+void WINAPI call_raise_user_exception_dispatcher( NTSTATUS (WINAPI *dispatcher)(void) )
+{
+    x86_thread_data()->syscall_frame->eip = (DWORD)dispatcher;
+}
 
 
 /***********************************************************************