mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-18 22:14:16 +00:00
1a33b18b3b
Parts of linux/compat.h are under an #ifdef, but we end up using more of those over time, moving things around bit by bit. To get it over with once and for all, make all of this file uncondititonal now so it can be accessed everywhere. There are only a few types left that are in asm/compat.h but not yet in the asm-generic version, so add those in the process. This requires providing a few more types in asm-generic/compat.h that were not already there. The only tricky one is compat_sigset_t, which needs a little help on 32-bit architectures and for x86. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
170 lines
3.6 KiB
C
170 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_POWERPC_COMPAT_H
|
|
#define _ASM_POWERPC_COMPAT_H
|
|
#ifdef __KERNEL__
|
|
/*
|
|
* Architecture specific compatibility types
|
|
*/
|
|
#include <linux/types.h>
|
|
#include <linux/sched.h>
|
|
|
|
#include <asm-generic/compat.h>
|
|
|
|
#define COMPAT_USER_HZ 100
|
|
#ifdef __BIG_ENDIAN__
|
|
#define COMPAT_UTS_MACHINE "ppc\0\0"
|
|
#else
|
|
#define COMPAT_UTS_MACHINE "ppcle\0\0"
|
|
#endif
|
|
|
|
typedef u32 __compat_uid_t;
|
|
typedef u32 __compat_gid_t;
|
|
typedef u32 compat_dev_t;
|
|
typedef s16 compat_nlink_t;
|
|
typedef u16 compat_ipc_pid_t;
|
|
typedef __kernel_fsid_t compat_fsid_t;
|
|
|
|
struct compat_stat {
|
|
compat_dev_t st_dev;
|
|
compat_ino_t st_ino;
|
|
compat_mode_t st_mode;
|
|
compat_nlink_t st_nlink;
|
|
__compat_uid32_t st_uid;
|
|
__compat_gid32_t st_gid;
|
|
compat_dev_t st_rdev;
|
|
compat_off_t st_size;
|
|
compat_off_t st_blksize;
|
|
compat_off_t st_blocks;
|
|
old_time32_t st_atime;
|
|
u32 st_atime_nsec;
|
|
old_time32_t st_mtime;
|
|
u32 st_mtime_nsec;
|
|
old_time32_t st_ctime;
|
|
u32 st_ctime_nsec;
|
|
u32 __unused4[2];
|
|
};
|
|
|
|
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
|
|
|
|
struct compat_flock64 {
|
|
short l_type;
|
|
short l_whence;
|
|
compat_loff_t l_start;
|
|
compat_loff_t l_len;
|
|
compat_pid_t l_pid;
|
|
};
|
|
|
|
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_RLIM_INFINITY 0xffffffff
|
|
|
|
#define COMPAT_OFF_T_MAX 0x7fffffff
|
|
|
|
static inline void __user *arch_compat_alloc_user_space(long len)
|
|
{
|
|
struct pt_regs *regs = current->thread.regs;
|
|
unsigned long usp = regs->gpr[1];
|
|
|
|
/*
|
|
* We can't access below the stack pointer in the 32bit ABI and
|
|
* can access 288 bytes in the 64bit big-endian ABI,
|
|
* or 512 bytes with the new ELFv2 little-endian ABI.
|
|
*/
|
|
if (!is_32bit_task())
|
|
usp -= USER_REDZONE_SIZE;
|
|
|
|
return (void __user *) (usp - len);
|
|
}
|
|
|
|
/*
|
|
* ipc64_perm is actually 32/64bit clean but since the compat layer refers to
|
|
* it we may as well define it.
|
|
*/
|
|
struct compat_ipc64_perm {
|
|
compat_key_t key;
|
|
__compat_uid_t uid;
|
|
__compat_gid_t gid;
|
|
__compat_uid_t cuid;
|
|
__compat_gid_t cgid;
|
|
compat_mode_t mode;
|
|
unsigned int seq;
|
|
unsigned int __pad2;
|
|
unsigned long __unused1; /* yes they really are 64bit pads */
|
|
unsigned long __unused2;
|
|
};
|
|
|
|
struct compat_semid64_ds {
|
|
struct compat_ipc64_perm sem_perm;
|
|
unsigned int sem_otime_high;
|
|
unsigned int sem_otime;
|
|
unsigned int sem_ctime_high;
|
|
unsigned int sem_ctime;
|
|
compat_ulong_t sem_nsems;
|
|
compat_ulong_t __unused3;
|
|
compat_ulong_t __unused4;
|
|
};
|
|
|
|
struct compat_msqid64_ds {
|
|
struct compat_ipc64_perm msg_perm;
|
|
unsigned int msg_stime_high;
|
|
unsigned int msg_stime;
|
|
unsigned int msg_rtime_high;
|
|
unsigned int msg_rtime;
|
|
unsigned int msg_ctime_high;
|
|
unsigned int msg_ctime;
|
|
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;
|
|
unsigned int shm_atime_high;
|
|
unsigned int shm_atime;
|
|
unsigned int shm_dtime_high;
|
|
unsigned int shm_dtime;
|
|
unsigned int shm_ctime_high;
|
|
unsigned int shm_ctime;
|
|
unsigned int __unused4;
|
|
compat_size_t shm_segsz;
|
|
compat_pid_t shm_cpid;
|
|
compat_pid_t shm_lpid;
|
|
compat_ulong_t shm_nattch;
|
|
compat_ulong_t __unused5;
|
|
compat_ulong_t __unused6;
|
|
};
|
|
|
|
static inline int is_compat_task(void)
|
|
{
|
|
return is_32bit_task();
|
|
}
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_POWERPC_COMPAT_H */
|