5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_SYSCALL_H
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#define __ASM_SYSCALL_H
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#include <linux/sched.h>
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#include <linux/err.h>
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#include <abi/regdef.h>
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#include <uapi/linux/audit.h>
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extern void *sys_call_table[];
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static inline int
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syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
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{
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return regs_syscallid(regs);
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}
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static inline void
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syscall_set_nr(struct task_struct *task, struct pt_regs *regs,
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int sysno)
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{
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regs_syscallid(regs) = sysno;
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}
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static inline void
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syscall_rollback(struct task_struct *task, struct pt_regs *regs)
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{
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regs->a0 = regs->orig_a0;
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}
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static inline long
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syscall_get_error(struct task_struct *task, struct pt_regs *regs)
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{
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unsigned long error = regs->a0;
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return IS_ERR_VALUE(error) ? error : 0;
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}
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static inline long
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syscall_get_return_value(struct task_struct *task, struct pt_regs *regs)
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{
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return regs->a0;
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}
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static inline void
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syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
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int error, long val)
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{
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regs->a0 = (long) error ?: val;
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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 long *args)
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{
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args[0] = regs->orig_a0;
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args++;
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memcpy(args, ®s->a1, 5 * sizeof(args[0]));
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}
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static inline void
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syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
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const unsigned long *args)
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{
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regs->orig_a0 = args[0];
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args++;
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memcpy(®s->a1, args, 5 * sizeof(regs->a1));
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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 AUDIT_ARCH_CSKY;
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}
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#endif /* __ASM_SYSCALL_H */
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