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74 lines
1.7 KiB
74 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* |
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* Author: Hanlu Li <[email protected]> |
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* Huacai Chen <[email protected]> |
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* |
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited |
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*/ |
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#ifndef __ASM_LOONGARCH_SYSCALL_H |
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#define __ASM_LOONGARCH_SYSCALL_H |
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#include <linux/compiler.h> |
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#include <uapi/linux/audit.h> |
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#include <linux/elf-em.h> |
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#include <linux/kernel.h> |
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#include <linux/sched.h> |
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#include <linux/uaccess.h> |
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#include <asm/ptrace.h> |
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#include <asm/unistd.h> |
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extern void *sys_call_table[]; |
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static inline long syscall_get_nr(struct task_struct *task, |
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struct pt_regs *regs) |
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{ |
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return regs->regs[11]; |
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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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regs->regs[4] = regs->orig_a0; |
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} |
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static inline long syscall_get_error(struct task_struct *task, |
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struct pt_regs *regs) |
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{ |
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unsigned long error = regs->regs[4]; |
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return IS_ERR_VALUE(error) ? error : 0; |
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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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return regs->regs[4]; |
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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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regs->regs[4] = (long) error ? error : val; |
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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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args[0] = regs->orig_a0; |
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memcpy(&args[1], ®s->regs[5], 5 * sizeof(long)); |
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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_LOONGARCH64; |
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} |
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static inline bool arch_syscall_is_vdso_sigreturn(struct pt_regs *regs) |
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{ |
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return false; |
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} |
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#endif /* __ASM_LOONGARCH_SYSCALL_H */
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