ntdll: Make sure the stack is quad-word aligned on ARM64.

Signed-off-by: André Hentschel <nerv@dawncrow.de> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

ntdll: Make sure the stack is quad-word aligned on ARM64.
2e9611bb · André Hentschel · Alexandre Julliard · ae3adacd · 2e9611bb
Commit 2e9611bb authored Jul 24, 2017 by André Hentschel Committed by Alexandre Julliard Jul 24, 2017
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signal_arm64.c dlls/ntdll/signal_arm64.c +2 -2

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--- a/dlls/ntdll/signal_arm64.c
+++ b/dlls/ntdll/signal_arm64.c
@@ -386,8 +386,8 @@ static EXCEPTION_RECORD *setup_exception( ucontext_t *sigcontext, raise_func fun
    } *stack;
    DWORD exception_code = 0;

-    stack = (struct stack_layout *)(SP_sig(sigcontext) & ~15);
-    stack--;  /* push the stack_layout structure */
+    /* push the stack_layout structure */
+    stack = (struct stack_layout *)((SP_sig(sigcontext) - sizeof(*stack)) & ~15);

    stack->rec.ExceptionRecord  = NULL;
    stack->rec.ExceptionCode    = exception_code;