2008-10-23 12:26:29 +07:00
|
|
|
#ifndef _ASM_X86_COMPAT_H
|
|
|
|
#define _ASM_X86_COMPAT_H
|
2005-04-17 05:20:36 +07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Architecture specific compatibility types
|
|
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
|
|
#include <linux/sched.h>
|
2007-10-20 01:35:02 +07:00
|
|
|
#include <asm/user32.h>
|
2012-02-19 22:56:26 +07:00
|
|
|
#include <asm/unistd.h>
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2010-03-11 06:21:19 +07:00
|
|
|
#define COMPAT_USER_HZ 100
|
|
|
|
#define COMPAT_UTS_MACHINE "i686\0\0"
|
2005-04-17 05:20:36 +07:00
|
|
|
|
|
|
|
typedef u32 compat_size_t;
|
|
|
|
typedef s32 compat_ssize_t;
|
|
|
|
typedef s32 compat_time_t;
|
|
|
|
typedef s32 compat_clock_t;
|
|
|
|
typedef s32 compat_pid_t;
|
2005-09-07 05:16:40 +07:00
|
|
|
typedef u16 __compat_uid_t;
|
|
|
|
typedef u16 __compat_gid_t;
|
|
|
|
typedef u32 __compat_uid32_t;
|
|
|
|
typedef u32 __compat_gid32_t;
|
2005-04-17 05:20:36 +07:00
|
|
|
typedef u16 compat_mode_t;
|
|
|
|
typedef u32 compat_ino_t;
|
|
|
|
typedef u16 compat_dev_t;
|
|
|
|
typedef s32 compat_off_t;
|
|
|
|
typedef s64 compat_loff_t;
|
|
|
|
typedef u16 compat_nlink_t;
|
|
|
|
typedef u16 compat_ipc_pid_t;
|
|
|
|
typedef s32 compat_daddr_t;
|
|
|
|
typedef u32 compat_caddr_t;
|
|
|
|
typedef __kernel_fsid_t compat_fsid_t;
|
|
|
|
typedef s32 compat_timer_t;
|
|
|
|
typedef s32 compat_key_t;
|
|
|
|
|
|
|
|
typedef s32 compat_int_t;
|
|
|
|
typedef s32 compat_long_t;
|
2007-07-16 13:41:11 +07:00
|
|
|
typedef s64 __attribute__((aligned(4))) compat_s64;
|
2005-04-17 05:20:36 +07:00
|
|
|
typedef u32 compat_uint_t;
|
|
|
|
typedef u32 compat_ulong_t;
|
2007-07-16 13:41:11 +07:00
|
|
|
typedef u64 __attribute__((aligned(4))) compat_u64;
|
2005-04-17 05:20:36 +07:00
|
|
|
|
|
|
|
struct compat_timespec {
|
|
|
|
compat_time_t tv_sec;
|
|
|
|
s32 tv_nsec;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct compat_timeval {
|
|
|
|
compat_time_t tv_sec;
|
|
|
|
s32 tv_usec;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct compat_stat {
|
|
|
|
compat_dev_t st_dev;
|
|
|
|
u16 __pad1;
|
|
|
|
compat_ino_t st_ino;
|
|
|
|
compat_mode_t st_mode;
|
|
|
|
compat_nlink_t st_nlink;
|
2005-09-07 05:16:40 +07:00
|
|
|
__compat_uid_t st_uid;
|
|
|
|
__compat_gid_t st_gid;
|
2005-04-17 05:20:36 +07:00
|
|
|
compat_dev_t st_rdev;
|
|
|
|
u16 __pad2;
|
|
|
|
u32 st_size;
|
|
|
|
u32 st_blksize;
|
|
|
|
u32 st_blocks;
|
|
|
|
u32 st_atime;
|
|
|
|
u32 st_atime_nsec;
|
|
|
|
u32 st_mtime;
|
|
|
|
u32 st_mtime_nsec;
|
|
|
|
u32 st_ctime;
|
|
|
|
u32 st_ctime_nsec;
|
|
|
|
u32 __unused4;
|
|
|
|
u32 __unused5;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct compat_flock {
|
|
|
|
short l_type;
|
|
|
|
short l_whence;
|
|
|
|
compat_off_t l_start;
|
|
|
|
compat_off_t l_len;
|
|
|
|
compat_pid_t l_pid;
|
|
|
|
};
|
|
|
|
|
|
|
|
#define F_GETLK64 12 /* using 'struct flock64' */
|
|
|
|
#define F_SETLK64 13
|
|
|
|
#define F_SETLKW64 14
|
|
|
|
|
|
|
|
/*
|
|
|
|
* IA32 uses 4 byte alignment for 64 bit quantities,
|
|
|
|
* so we need to pack this structure.
|
|
|
|
*/
|
|
|
|
struct compat_flock64 {
|
|
|
|
short l_type;
|
|
|
|
short l_whence;
|
|
|
|
compat_loff_t l_start;
|
|
|
|
compat_loff_t l_len;
|
|
|
|
compat_pid_t l_pid;
|
|
|
|
} __attribute__((packed));
|
|
|
|
|
|
|
|
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;
|
2011-10-18 03:40:02 +07:00
|
|
|
int f_flags;
|
|
|
|
int f_spare[4];
|
2005-04-17 05:20:36 +07:00
|
|
|
};
|
|
|
|
|
|
|
|
#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
|
|
|
|
#define COMPAT_RLIM_INFINITY 0xffffffff
|
|
|
|
|
|
|
|
typedef u32 compat_old_sigset_t; /* at least 32 bits */
|
|
|
|
|
|
|
|
#define _COMPAT_NSIG 64
|
|
|
|
#define _COMPAT_NSIG_BPW 32
|
|
|
|
|
|
|
|
typedef u32 compat_sigset_word;
|
|
|
|
|
|
|
|
#define COMPAT_OFF_T_MAX 0x7fffffff
|
|
|
|
#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
|
|
|
|
|
|
|
|
struct compat_ipc64_perm {
|
|
|
|
compat_key_t key;
|
2005-09-07 05:16:40 +07:00
|
|
|
__compat_uid32_t uid;
|
|
|
|
__compat_gid32_t gid;
|
|
|
|
__compat_uid32_t cuid;
|
|
|
|
__compat_gid32_t cgid;
|
2005-04-17 05:20:36 +07:00
|
|
|
unsigned short mode;
|
|
|
|
unsigned short __pad1;
|
|
|
|
unsigned short seq;
|
|
|
|
unsigned short __pad2;
|
|
|
|
compat_ulong_t unused1;
|
|
|
|
compat_ulong_t unused2;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct compat_semid64_ds {
|
|
|
|
struct compat_ipc64_perm sem_perm;
|
|
|
|
compat_time_t sem_otime;
|
|
|
|
compat_ulong_t __unused1;
|
|
|
|
compat_time_t sem_ctime;
|
|
|
|
compat_ulong_t __unused2;
|
|
|
|
compat_ulong_t sem_nsems;
|
|
|
|
compat_ulong_t __unused3;
|
|
|
|
compat_ulong_t __unused4;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct compat_msqid64_ds {
|
|
|
|
struct compat_ipc64_perm msg_perm;
|
|
|
|
compat_time_t msg_stime;
|
|
|
|
compat_ulong_t __unused1;
|
|
|
|
compat_time_t msg_rtime;
|
|
|
|
compat_ulong_t __unused2;
|
|
|
|
compat_time_t msg_ctime;
|
|
|
|
compat_ulong_t __unused3;
|
|
|
|
compat_ulong_t msg_cbytes;
|
|
|
|
compat_ulong_t msg_qnum;
|
|
|
|
compat_ulong_t msg_qbytes;
|
|
|
|
compat_pid_t msg_lspid;
|
|
|
|
compat_pid_t msg_lrpid;
|
|
|
|
compat_ulong_t __unused4;
|
|
|
|
compat_ulong_t __unused5;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct compat_shmid64_ds {
|
|
|
|
struct compat_ipc64_perm shm_perm;
|
|
|
|
compat_size_t shm_segsz;
|
|
|
|
compat_time_t shm_atime;
|
|
|
|
compat_ulong_t __unused1;
|
|
|
|
compat_time_t shm_dtime;
|
|
|
|
compat_ulong_t __unused2;
|
|
|
|
compat_time_t shm_ctime;
|
|
|
|
compat_ulong_t __unused3;
|
|
|
|
compat_pid_t shm_cpid;
|
|
|
|
compat_pid_t shm_lpid;
|
|
|
|
compat_ulong_t shm_nattch;
|
|
|
|
compat_ulong_t __unused4;
|
|
|
|
compat_ulong_t __unused5;
|
|
|
|
};
|
|
|
|
|
2007-10-20 01:35:02 +07:00
|
|
|
/*
|
|
|
|
* The type of struct elf_prstatus.pr_reg in compatible core dumps.
|
|
|
|
*/
|
|
|
|
typedef struct user_regs_struct32 compat_elf_gregset_t;
|
|
|
|
|
2005-04-17 05:20:36 +07:00
|
|
|
/*
|
|
|
|
* A pointer passed in from user mode. This should not
|
|
|
|
* be used for syscall parameters, just declare them
|
|
|
|
* as pointers because the syscall entry code will have
|
2008-02-03 21:32:51 +07:00
|
|
|
* appropriately converted them already.
|
2005-04-17 05:20:36 +07:00
|
|
|
*/
|
|
|
|
typedef u32 compat_uptr_t;
|
|
|
|
|
|
|
|
static inline void __user *compat_ptr(compat_uptr_t uptr)
|
|
|
|
{
|
|
|
|
return (void __user *)(unsigned long)uptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline compat_uptr_t ptr_to_compat(void __user *uptr)
|
|
|
|
{
|
|
|
|
return (u32)(unsigned long)uptr;
|
|
|
|
}
|
|
|
|
|
2010-09-08 06:16:18 +07:00
|
|
|
static inline void __user *arch_compat_alloc_user_space(long len)
|
2005-04-17 05:20:36 +07:00
|
|
|
{
|
2006-01-12 16:05:38 +07:00
|
|
|
struct pt_regs *regs = task_pt_regs(current);
|
2008-01-30 19:30:56 +07:00
|
|
|
return (void __user *)regs->sp - len;
|
2005-04-17 05:20:36 +07:00
|
|
|
}
|
|
|
|
|
2012-02-19 22:56:26 +07:00
|
|
|
static inline bool is_compat_task(void)
|
2006-01-12 04:44:06 +07:00
|
|
|
{
|
2012-02-19 22:56:26 +07:00
|
|
|
#ifdef CONFIG_IA32_EMULATION
|
|
|
|
if (current_thread_info()->status & TS_COMPAT)
|
|
|
|
return true;
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_X86_X32_ABI
|
|
|
|
if (task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT)
|
|
|
|
return true;
|
|
|
|
#endif
|
|
|
|
return false;
|
2006-01-12 04:44:06 +07:00
|
|
|
}
|
|
|
|
|
2008-10-23 12:26:29 +07:00
|
|
|
#endif /* _ASM_X86_COMPAT_H */
|