2026-01-21 18:59:54 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_SW64_SYSCALL_H
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#define _ASM_SW64_SYSCALL_H
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#include <uapi/linux/audit.h>
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2026-01-29 22:25:33 +08:00
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#ifndef __ASSEMBLY__
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typedef long (*syscall_fn_t)(ulong, ulong, ulong, ulong, ulong, ulong);
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extern syscall_fn_t sys_call_table[];
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2026-01-21 18:59:54 +08:00
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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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2026-01-29 22:25:33 +08:00
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return regs->regs[0];
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2026-01-21 18:59:54 +08:00
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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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2026-01-29 22:25:33 +08:00
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return regs->regs[19] ? -regs->regs[0] : 0;
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2026-01-21 18:59:54 +08:00
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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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2026-01-29 22:25:33 +08:00
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return regs->regs[0];
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2026-01-21 18:59:54 +08:00
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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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if (error) {
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2026-01-29 22:25:33 +08:00
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regs->regs[0] = -error;
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regs->regs[19] = 1;
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2026-01-21 18:59:54 +08:00
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} else {
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2026-01-29 22:25:33 +08:00
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regs->regs[0] = val;
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regs->regs[19] = 0;
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2026-01-21 18:59:54 +08:00
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}
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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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2026-01-29 22:25:33 +08:00
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regs->regs[0] = regs->orig_r0;
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regs->regs[19] = regs->orig_r19;
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2026-01-21 18:59:54 +08:00
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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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2026-01-29 22:25:33 +08:00
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*args++ = regs->regs[16];
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*args++ = regs->regs[17];
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*args++ = regs->regs[18];
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*args++ = regs->regs[19];
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*args++ = regs->regs[20];
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*args = regs->regs[21];
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2026-01-21 18:59:54 +08:00
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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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2026-01-29 22:25:33 +08:00
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regs->regs[16] = *args++;
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regs->regs[17] = *args++;
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regs->regs[18] = *args++;
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regs->regs[19] = *args++;
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regs->regs[20] = *args++;
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regs->regs[21] = *args;
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2026-01-21 18:59:54 +08:00
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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 AUDIT_ARCH_SW64;
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}
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2026-01-29 22:25:33 +08:00
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_SW64_SYSCALL_H */
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