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75 lines
1.6 KiB
75 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright (C) 2011 Texas Instruments Incorporated |
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* Author: Mark Salter <[email protected]> |
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*/ |
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#ifndef __ASM_C6X_SYSCALL_H |
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#define __ASM_C6X_SYSCALL_H |
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#include <uapi/linux/audit.h> |
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#include <linux/err.h> |
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#include <linux/sched.h> |
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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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return regs->b0; |
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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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return IS_ERR_VALUE(regs->a4) ? regs->a4 : 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->a4; |
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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->a4 = 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++ = regs->a4; |
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*args++ = regs->b4; |
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*args++ = regs->a6; |
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*args++ = regs->b6; |
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*args++ = regs->a8; |
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*args = regs->b8; |
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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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regs->a4 = *args++; |
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regs->b4 = *args++; |
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regs->a6 = *args++; |
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regs->b6 = *args++; |
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regs->a8 = *args++; |
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regs->a9 = *args; |
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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 IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) |
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? AUDIT_ARCH_C6XBE : AUDIT_ARCH_C6X; |
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} |
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#endif /* __ASM_C6X_SYSCALLS_H */
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