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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SYSCALL_H #define __ASM_SYSCALL_H #include <linux/sched.h> #include <linux/err.h> #include <abi/regdef.h> #include <uapi/linux/audit.h> extern void *sys_call_table[]; static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs) { return regs_syscallid(regs); } static inline void syscall_set_nr(struct task_struct *task, struct pt_regs *regs, int sysno) { regs_syscallid(regs) = sysno; } static inline void syscall_rollback(struct task_struct *task, struct pt_regs *regs) { regs->a0 = regs->orig_a0; } static inline long syscall_get_error(struct task_struct *task, struct pt_regs *regs) { unsigned long error = regs->a0; return IS_ERR_VALUE(error) ? error : 0; } static inline long syscall_get_return_value(struct task_struct *task, struct pt_regs *regs) { return regs->a0; } static inline void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, int error, long val) { regs->a0 = (long) error ?: val; } static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, unsigned long *args) { args[0] = regs->orig_a0; args++; memcpy(args, ®s->a1, 5 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, const unsigned long *args) { regs->orig_a0 = args[0]; args++; memcpy(®s->a1, args, 5 * sizeof(regs->a1)); } static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_CSKY; } #endif /* __ASM_SYSCALL_H */