kernel/x86_64: align the stack before calling user_debug_pre_syscall

Fixes #17531 Change-Id: Ia406ca15438bb2b432e9ebbe9f6db074f973af95 Reviewed-on: https://review.haiku-os.org/c/haiku/+/5113 Reviewed-by: waddlesplash <[email protected]> Tested-by: Commit checker robot <[email protected]>
2022-03-21 19:24:20 +00:00
parent f0a8e7e247
commit 168f941be5
1 changed files with 2 additions and 1 deletions
@@ -505,10 +505,11 @@ FUNCTION(x86_64_syscall_entry):
 	push	IFRAME_di(%rbp)
 	movq	%r14, %rdi				// syscall number
 	movq	%rsp, %rsi
+	subq	$8, %rsp
 	push	%rax
 	call	user_debug_pre_syscall
 	pop		%rax
-	addq	$48, %rsp
+	addq	$56, %rsp
 	jmp		.Lpre_syscall_debug_done

 .Lpost_syscall_work: