diff options
Diffstat (limited to 'arch/hexagon/include/asm/syscall.h')
| -rw-r--r-- | arch/hexagon/include/asm/syscall.h | 62 |
1 files changed, 45 insertions, 17 deletions
diff --git a/arch/hexagon/include/asm/syscall.h b/arch/hexagon/include/asm/syscall.h index 4af9c7b6f13a..70637261817a 100644 --- a/arch/hexagon/include/asm/syscall.h +++ b/arch/hexagon/include/asm/syscall.h @@ -1,26 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Syscall support for the Hexagon architecture * * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. */ #ifndef _ASM_HEXAGON_SYSCALL_H #define _ASM_HEXAGON_SYSCALL_H +#include <uapi/linux/audit.h> +#include <linux/err.h> +#include <asm/ptrace.h> + typedef long (*syscall_fn)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); @@ -35,12 +26,49 @@ static inline long syscall_get_nr(struct task_struct *task, return regs->r06; } +static inline void syscall_set_nr(struct task_struct *task, + struct pt_regs *regs, + int nr) +{ + regs->r06 = nr; +} + static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - BUG_ON(i + n > 6); - memcpy(args, &(®s->r00)[i], n * sizeof(args[0])); + memcpy(args, &(®s->r00)[0], 6 * sizeof(args[0])); } + +static inline void syscall_set_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned long *args) +{ + memcpy(&(®s->r00)[0], args, 6 * sizeof(args[0])); +} + +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + return IS_ERR_VALUE(regs->r00) ? regs->r00 : 0; +} + +static inline long syscall_get_return_value(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->r00; +} + +static inline void syscall_set_return_value(struct task_struct *task, + struct pt_regs *regs, + int error, long val) +{ + regs->r00 = (long) error ?: val; +} + +static inline int syscall_get_arch(struct task_struct *task) +{ + return AUDIT_ARCH_HEXAGON; +} + #endif |