mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-03 15:47:36 +00:00
7962c2eddb
This function appears to have been unused since it was first introduced in
commit 828c365cc8
("tracehook: asm/syscall.h").
Signed-off-by: Peter Collingbourne <pcc@google.com>
Link: https://linux-review.googlesource.com/id/I8ce04f002903a37c0b6c1d16e9b2a3afa716c097
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __ASM_MICROBLAZE_SYSCALL_H
|
|
#define __ASM_MICROBLAZE_SYSCALL_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 R12 */
|
|
static inline long syscall_get_nr(struct task_struct *task,
|
|
struct pt_regs *regs)
|
|
{
|
|
return regs->r12;
|
|
}
|
|
|
|
static inline void syscall_rollback(struct task_struct *task,
|
|
struct pt_regs *regs)
|
|
{
|
|
/* TODO. */
|
|
}
|
|
|
|
static inline long syscall_get_error(struct task_struct *task,
|
|
struct pt_regs *regs)
|
|
{
|
|
return IS_ERR_VALUE(regs->r3) ? regs->r3 : 0;
|
|
}
|
|
|
|
static inline long syscall_get_return_value(struct task_struct *task,
|
|
struct pt_regs *regs)
|
|
{
|
|
return regs->r3;
|
|
}
|
|
|
|
static inline void syscall_set_return_value(struct task_struct *task,
|
|
struct pt_regs *regs,
|
|
int error, long val)
|
|
{
|
|
if (error)
|
|
regs->r3 = -error;
|
|
else
|
|
regs->r3 = val;
|
|
}
|
|
|
|
static inline microblaze_reg_t microblaze_get_syscall_arg(struct pt_regs *regs,
|
|
unsigned int n)
|
|
{
|
|
switch (n) {
|
|
case 5: return regs->r10;
|
|
case 4: return regs->r9;
|
|
case 3: return regs->r8;
|
|
case 2: return regs->r7;
|
|
case 1: return regs->r6;
|
|
case 0: return regs->r5;
|
|
default:
|
|
BUG();
|
|
}
|
|
return ~0;
|
|
}
|
|
|
|
static inline void syscall_get_arguments(struct task_struct *task,
|
|
struct pt_regs *regs,
|
|
unsigned long *args)
|
|
{
|
|
unsigned int i = 0;
|
|
unsigned int n = 6;
|
|
|
|
while (n--)
|
|
*args++ = microblaze_get_syscall_arg(regs, i++);
|
|
}
|
|
|
|
asmlinkage unsigned long do_syscall_trace_enter(struct pt_regs *regs);
|
|
asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
|
|
|
|
static inline int syscall_get_arch(struct task_struct *task)
|
|
{
|
|
return AUDIT_ARCH_MICROBLAZE;
|
|
}
|
|
#endif /* __ASM_MICROBLAZE_SYSCALL_H */
|