Alexandre Julliard : ntdll: Use .seh handler in RtlUserThreadStart on ARM64.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ae976eec5ebd39e8f30c4adc4d2880866809bf44
URL:    https://gitlab.winehq.org/wine/wine/-/commit/ae976eec5ebd39e8f30c4adc4d28808...

Author: Alexandre Julliard 
Date:   Mon Oct 16 13:06:08 2023 +0200

ntdll: Use .seh handler in RtlUserThreadStart on ARM64.

---

dlls/ntdll/signal_arm64.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/dlls/ntdll/signal_arm64.c b/dlls/ntdll/signal_arm64.c
index 4cbeba03c46..cb796141871 100644
--- a/dlls/ntdll/signal_arm64.c
+++ b/dlls/ntdll/signal_arm64.c
@@ -1528,18 +1528,17 @@ USHORT WINAPI RtlCaptureStackBackTrace( ULONG skip, ULONG count, PVOID *buffer,
 /***********************************************************************
  *           RtlUserThreadStart (NTDLL.@)
  */
-void WINAPI RtlUserThreadStart( PRTL_THREAD_START_ROUTINE entry, void *arg )
-{
-    __TRY
-    {
-        pBaseThreadInitThunk( 0, (LPTHREAD_START_ROUTINE)entry, arg );
-    }
-    __EXCEPT(call_unhandled_exception_filter)
-    {
-        NtTerminateProcess( GetCurrentProcess(), GetExceptionCode() );
-    }
-    __ENDTRY
-}
+__ASM_GLOBAL_FUNC( RtlUserThreadStart,
+                   "stp x29, x30, [sp, #-16]!\n\t"
+                   __ASM_SEH(".seh_save_fplr_x 16\n\t")
+                   __ASM_SEH(".seh_endprologue\n\t")
+                   "adr x8, " __ASM_NAME("pBaseThreadInitThunk") "\n\t"
+                   "ldr x8, [x8]\n\t"
+                   "mov x2, x1\n\t"
+                   "mov x1, x0\n\t"
+                   "mov x0, #0\n\t"
+                   "blr x8\n\t"
+                   __ASM_SEH(".seh_handler " __ASM_NAME("call_unhandled_exception_handler") ", @except") )

/******************************************************************
  *		LdrInitializeThunk (NTDLL.@)