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/* SPDX-License-Identifier: GPL-2.0 */ /* syscall.h */ #ifndef _ASM_PARISC_SYSCALL_H_ #define _ASM_PARISC_SYSCALL_H_ #include <uapi/linux/audit.h> #include <linux/compat.h> #include <linux/err.h> #include <asm/ptrace.h> #define NR_syscalls (__NR_Linux_syscalls) static inline long syscall_get_nr(struct task_struct *tsk, struct pt_regs *regs) { return regs->gr[20]; } static inline void syscall_get_arguments(struct task_struct *tsk, struct pt_regs *regs, unsigned long *args) { args[5] = regs->gr[21]; args[4] = regs->gr[22]; args[3] = regs->gr[23]; args[2] = regs->gr[24]; args[1] = regs->gr[25]; args[0] = regs->gr[26]; } static inline long syscall_get_error(struct task_struct *task, struct pt_regs *regs) { unsigned long error = regs->gr[28]; return IS_ERR_VALUE(error) ? error : 0; } static inline long syscall_get_return_value(struct task_struct *task, struct pt_regs *regs) { return regs->gr[28]; } static inline void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, int error, long val) { regs->gr[28] = error ? error : val; } static inline void syscall_rollback(struct task_struct *task, struct pt_regs *regs) { /* do nothing */ } static inline int syscall_get_arch(struct task_struct *task) { int arch = AUDIT_ARCH_PARISC; #ifdef CONFIG_64BIT if (!__is_compat_task(task)) arch = AUDIT_ARCH_PARISC64; #endif return arch; } #endif /*_ASM_PARISC_SYSCALL_H_*/