/arch/powerpc/include/asm/compat.h
http://github.com/mirrors/linux · C Header · 183 lines · 148 code · 22 blank · 13 comment · 1 complexity · e197d2f71861d13e0cd308bc05c8ea84 MD5 · raw file
- /* 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_uid32_t;
- typedef u32 __compat_gid32_t;
- typedef u32 compat_mode_t;
- typedef u32 compat_dev_t;
- typedef s16 compat_nlink_t;
- typedef u16 compat_ipc_pid_t;
- typedef u32 compat_caddr_t;
- typedef __kernel_fsid_t compat_fsid_t;
- typedef s64 compat_s64;
- typedef u64 compat_u64;
- 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
- typedef u32 compat_old_sigset_t;
- #define _COMPAT_NSIG 64
- #define _COMPAT_NSIG_BPW 32
- typedef u32 compat_sigset_word;
- #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 */