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76 lines
1.8 KiB
76 lines
1.8 KiB
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 2001 - 2007 Tensilica Inc. |
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* Copyright (C) 2018 Cadence Design Systems Inc. |
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*/ |
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#ifndef _ASM_SYSCALL_H |
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#define _ASM_SYSCALL_H |
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#include <linux/err.h> |
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#include <asm/ptrace.h> |
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#include <uapi/linux/audit.h> |
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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_XTENSA; |
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} |
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typedef void (*syscall_t)(void); |
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extern syscall_t 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->syscall; |
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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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/* Do nothing. */ |
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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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/* 0 if syscall succeeded, otherwise -Errorcode */ |
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return IS_ERR_VALUE(regs->areg[2]) ? regs->areg[2] : 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->areg[2]; |
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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->areg[2] = (long) error ? error : val; |
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} |
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#define SYSCALL_MAX_ARGS 6 |
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#define XTENSA_SYSCALL_ARGUMENT_REGS {6, 3, 4, 5, 8, 9} |
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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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static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS; |
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unsigned int i; |
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for (i = 0; i < 6; ++i) |
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args[i] = regs->areg[reg[i]]; |
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} |
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asmlinkage long xtensa_rt_sigreturn(void); |
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asmlinkage long xtensa_shmat(int, char __user *, int); |
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asmlinkage long xtensa_fadvise64_64(int, int, |
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unsigned long long, unsigned long long); |
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#endif
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