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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 ARM Ltd.
*/
#ifndef __ASM_COMPAT_H
#define __ASM_COMPAT_H
#define compat_mode_t compat_mode_t
typedef u16 compat_mode_t;
#define __compat_uid_t __compat_uid_t
typedef u16 __compat_uid_t;
typedef u16 __compat_gid_t;
#define compat_ipc_pid_t compat_ipc_pid_t
typedef u16 compat_ipc_pid_t;
#define compat_statfs compat_statfs
#include <asm-generic/compat.h>
#ifdef CONFIG_COMPAT
/*
* Architecture specific compatibility types
*/
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
#ifdef __AARCH64EB__
#define COMPAT_UTS_MACHINE "armv8b\0\0"
#else
#define COMPAT_UTS_MACHINE "armv8l\0\0"
#endif
typedef u16 __compat_uid16_t;
typedef u16 __compat_gid16_t;
typedef s32 compat_nlink_t;
struct compat_stat {
#ifdef __AARCH64EB__
short st_dev;
short __pad1;
#else
compat_dev_t st_dev;
#endif
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_ushort_t st_nlink;
__compat_uid16_t st_uid;
__compat_gid16_t st_gid;
#ifdef __AARCH64EB__
short st_rdev;
short __pad2;
#else
compat_dev_t st_rdev;
#endif
compat_off_t st_size;
compat_off_t st_blksize;
compat_off_t st_blocks;
old_time32_t st_atime;
compat_ulong_t st_atime_nsec;
old_time32_t st_mtime;
compat_ulong_t st_mtime_nsec;
old_time32_t st_ctime;
compat_ulong_t st_ctime_nsec;
compat_ulong_t __unused4[2];
};
struct compat_statfs {
int f_type;
int f_bsize;
int f_blocks;
int f_bfree;
int f_bavail;
int f_files;
int f_ffree;
compat_fsid_t f_fsid;
int f_namelen; /* SunOS ignores this field. */
int f_frsize;
int f_flags;
int f_spare[4];
};
#define compat_user_stack_pointer() (user_stack_pointer(task_pt_regs(current)))
#define COMPAT_MINSIGSTKSZ 2048
static inline int is_compat_task(void)
{
return test_thread_flag(TIF_32BIT);
}
static inline int is_compat_thread(struct thread_info *thread)
{
return test_ti_thread_flag(thread, TIF_32BIT);
}
long compat_arm_syscall(struct pt_regs *regs, int scno);
#else /* !CONFIG_COMPAT */
static inline int is_compat_thread(struct thread_info *thread)
{
return 0;
}
#endif /* CONFIG_COMPAT */
#endif /* __ASM_COMPAT_H */
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