Release 4.8 arch/sh/include/asm/syscall_64.h
#ifndef __ASM_SH_SYSCALL_64_H
#define __ASM_SH_SYSCALL_64_H
#include <uapi/linux/audit.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/ptrace.h>
/* The system call number is given by the user in R9 */
static inline long syscall_get_nr(struct task_struct *task,
struct pt_regs *regs)
{
return (regs->syscall_nr >= 0) ? regs->regs[9] : -1L;
}
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static inline void syscall_rollback(struct task_struct *task,
struct pt_regs *regs)
{
/*
* XXX: This needs some thought. On SH we don't
* save away the original R9 value anywhere.
*/
}
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static inline long syscall_get_error(struct task_struct *task,
struct pt_regs *regs)
{
return IS_ERR_VALUE(regs->regs[9]) ? regs->regs[9] : 0;
}
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static inline long syscall_get_return_value(struct task_struct *task,
struct pt_regs *regs)
{
return regs->regs[9];
}
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static inline void syscall_set_return_value(struct task_struct *task,
struct pt_regs *regs,
int error, long val)
{
if (error)
regs->regs[9] = -error;
else
regs->regs[9] = val;
}
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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->regs[2 + i], n * sizeof(args[0]));
}
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static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(®s->regs[2 + i], args, n * sizeof(args[0]));
}
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static inline int syscall_get_arch(void)
{
int arch = AUDIT_ARCH_SH;
#ifdef CONFIG_64BIT
arch |= __AUDIT_ARCH_64BIT;
#endif
#ifdef CONFIG_CPU_LITTLE_ENDIAN
arch |= __AUDIT_ARCH_LE;
#endif
return arch;
}
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#endif /* __ASM_SH_SYSCALL_64_H */
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| Total | 349 | 100.00% | 5 | 100.00% |
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