76 строки
1.6 KiB
C
76 строки
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2011 Texas Instruments Incorporated
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* Author: Mark Salter <msalter@redhat.com>
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*/
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#ifndef __ASM_C6X_SYSCALL_H
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#define __ASM_C6X_SYSCALL_H
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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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static inline int syscall_get_nr(struct task_struct *task,
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struct pt_regs *regs)
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{
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return regs->b0;
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}
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static inline void syscall_rollback(struct task_struct *task,
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struct pt_regs *regs)
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{
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/* do nothing */
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}
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static inline long syscall_get_error(struct task_struct *task,
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struct pt_regs *regs)
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{
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return IS_ERR_VALUE(regs->a4) ? regs->a4 : 0;
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}
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static inline long syscall_get_return_value(struct task_struct *task,
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struct pt_regs *regs)
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{
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return regs->a4;
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}
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static inline void syscall_set_return_value(struct task_struct *task,
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struct pt_regs *regs,
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int error, long val)
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{
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regs->a4 = error ?: val;
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}
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static inline void syscall_get_arguments(struct task_struct *task,
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struct pt_regs *regs,
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unsigned long *args)
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{
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*args++ = regs->a4;
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*args++ = regs->b4;
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*args++ = regs->a6;
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*args++ = regs->b6;
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*args++ = regs->a8;
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*args = regs->b8;
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}
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs,
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const unsigned long *args)
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{
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regs->a4 = *args++;
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regs->b4 = *args++;
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regs->a6 = *args++;
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regs->b6 = *args++;
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regs->a8 = *args++;
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regs->a9 = *args;
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}
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static inline int syscall_get_arch(struct task_struct *task)
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{
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return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
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? AUDIT_ARCH_C6XBE : AUDIT_ARCH_C6X;
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}
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#endif /* __ASM_C6X_SYSCALLS_H */
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