kernel/x86_64: align the stack before calling the function

in arch_debug_call_with_fault_handler Change-Id: Iddefb7e93d561f3a6ccf1ee06328e473b28fca2a Reviewed-on: https://review.haiku-os.org/c/haiku/+/6918 Reviewed-by: Jérôme Duval <[email protected]> Tested-by: Commit checker robot <[email protected]>
2023-09-28 07:11:09 +00:00
parent 91ef2c3c00
commit 4f0173cdb0
1 changed files with 2 additions and 0 deletions
@@ -87,6 +87,8 @@ FUNCTION(arch_debug_call_with_fault_handler):

 	// Preserve the jump buffer address for the fault return.
 	push	%rsi
+	// Align the stack before calling the function.
+	subq	$8, %rsp

 	// Set fault handler address, and fault handler stack pointer address. We
 	// don't need to save the previous values, since that's done by the caller.