Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Paul Mundt |
285 |
66.43% |
3 |
30.00% |
| Dmitry V. Levin |
107 |
24.94% |
3 |
30.00% |
| Eric Paris |
28 |
6.53% |
1 |
10.00% |
| Michael Karcher |
5 |
1.17% |
1 |
10.00% |
| Matt Fleming |
3 |
0.70% |
1 |
10.00% |
| Greg Kroah-Hartman |
1 |
0.23% |
1 |
10.00% |
| Total |
429 |
|
10 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_SYSCALL_32_H
#define __ASM_SH_SYSCALL_32_H
#include <uapi/linux/audit.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/err.h>
#include <asm/ptrace.h>
/* The system call number is given by the user in R3 */
static inline long syscall_get_nr(struct task_struct *task,
struct pt_regs *regs)
{
return (regs->tra >= 0) ? regs->regs[3] : -1L;
}
static inline void syscall_set_nr(struct task_struct *task,
struct pt_regs *regs,
int nr)
{
/*
* Unlike syscall_get_nr(), syscall_set_nr() can be called only when
* the target task is stopped for tracing on entering syscall, so
* there is no need to have the same check syscall_get_nr() has.
*/
regs->regs[3] = nr;
}
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 r0 value anywhere.
*/
}
static inline long syscall_get_error(struct task_struct *task,
struct pt_regs *regs)
{
return IS_ERR_VALUE(regs->regs[0]) ? regs->regs[0] : 0;
}
static inline long syscall_get_return_value(struct task_struct *task,
struct pt_regs *regs)
{
return regs->regs[0];
}
static inline void syscall_set_return_value(struct task_struct *task,
struct pt_regs *regs,
int error, long val)
{
regs->regs[0] = (long) error ?: val;
}
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned long *args)
{
/* Argument pattern is: R4, R5, R6, R7, R0, R1 */
args[5] = regs->regs[1];
args[4] = regs->regs[0];
args[3] = regs->regs[7];
args[2] = regs->regs[6];
args[1] = regs->regs[5];
args[0] = regs->regs[4];
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
const unsigned long *args)
{
regs->regs[1] = args[5];
regs->regs[0] = args[4];
regs->regs[7] = args[3];
regs->regs[6] = args[2];
regs->regs[5] = args[1];
regs->regs[4] = args[0];
}
static inline int syscall_get_arch(struct task_struct *task)
{
int arch = AUDIT_ARCH_SH;
#ifdef CONFIG_CPU_LITTLE_ENDIAN
arch |= __AUDIT_ARCH_LE;
#endif
return arch;
}
#endif /* __ASM_SH_SYSCALL_32_H */