add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/arc/include/asm/syscall.h
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@@ -1,14 +1,12 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #ifndef _ASM_ARC_SYSCALL_H
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 #define _ASM_ARC_SYSCALL_H  1
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+#include <uapi/linux/audit.h>
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 #include <linux/err.h>
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 #include <linux/sched.h>
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 #include <asm/unistd.h>
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@@ -55,12 +53,11 @@
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  */
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 static inline void
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 syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
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-		      unsigned int i, unsigned int n, unsigned long *args)
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+		      unsigned long *args)
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 {
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 	unsigned long *inside_ptregs = &(regs->r0);
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-	inside_ptregs -= i;
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-
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-	BUG_ON((i + n) > 6);
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+	unsigned int n = 6;
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+	unsigned int i = 0;
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 	while (n--) {
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 		args[i++] = (*inside_ptregs);
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@@ -68,4 +65,14 @@
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 	}
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 }
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+static inline int
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+syscall_get_arch(struct task_struct *task)
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+{
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+	return IS_ENABLED(CONFIG_ISA_ARCOMPACT)
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+		? (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
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+			? AUDIT_ARCH_ARCOMPACTBE : AUDIT_ARCH_ARCOMPACT)
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+		: (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
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+			? AUDIT_ARCH_ARCV2BE : AUDIT_ARCH_ARCV2);
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+}
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+
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 #endif