1bb898558SAl Viro #ifndef ASM_X86__COMPAT_H 2bb898558SAl Viro #define ASM_X86__COMPAT_H 3bb898558SAl Viro 4bb898558SAl Viro /* 5bb898558SAl Viro * Architecture specific compatibility types 6bb898558SAl Viro */ 7bb898558SAl Viro #include <linux/types.h> 8bb898558SAl Viro #include <linux/sched.h> 9bb898558SAl Viro #include <asm/user32.h> 10bb898558SAl Viro 11bb898558SAl Viro #define COMPAT_USER_HZ 100 12bb898558SAl Viro 13bb898558SAl Viro typedef u32 compat_size_t; 14bb898558SAl Viro typedef s32 compat_ssize_t; 15bb898558SAl Viro typedef s32 compat_time_t; 16bb898558SAl Viro typedef s32 compat_clock_t; 17bb898558SAl Viro typedef s32 compat_pid_t; 18bb898558SAl Viro typedef u16 __compat_uid_t; 19bb898558SAl Viro typedef u16 __compat_gid_t; 20bb898558SAl Viro typedef u32 __compat_uid32_t; 21bb898558SAl Viro typedef u32 __compat_gid32_t; 22bb898558SAl Viro typedef u16 compat_mode_t; 23bb898558SAl Viro typedef u32 compat_ino_t; 24bb898558SAl Viro typedef u16 compat_dev_t; 25bb898558SAl Viro typedef s32 compat_off_t; 26bb898558SAl Viro typedef s64 compat_loff_t; 27bb898558SAl Viro typedef u16 compat_nlink_t; 28bb898558SAl Viro typedef u16 compat_ipc_pid_t; 29bb898558SAl Viro typedef s32 compat_daddr_t; 30bb898558SAl Viro typedef u32 compat_caddr_t; 31bb898558SAl Viro typedef __kernel_fsid_t compat_fsid_t; 32bb898558SAl Viro typedef s32 compat_timer_t; 33bb898558SAl Viro typedef s32 compat_key_t; 34bb898558SAl Viro 35bb898558SAl Viro typedef s32 compat_int_t; 36bb898558SAl Viro typedef s32 compat_long_t; 37bb898558SAl Viro typedef s64 __attribute__((aligned(4))) compat_s64; 38bb898558SAl Viro typedef u32 compat_uint_t; 39bb898558SAl Viro typedef u32 compat_ulong_t; 40bb898558SAl Viro typedef u64 __attribute__((aligned(4))) compat_u64; 41bb898558SAl Viro 42bb898558SAl Viro struct compat_timespec { 43bb898558SAl Viro compat_time_t tv_sec; 44bb898558SAl Viro s32 tv_nsec; 45bb898558SAl Viro }; 46bb898558SAl Viro 47bb898558SAl Viro struct compat_timeval { 48bb898558SAl Viro compat_time_t tv_sec; 49bb898558SAl Viro s32 tv_usec; 50bb898558SAl Viro }; 51bb898558SAl Viro 52bb898558SAl Viro struct compat_stat { 53bb898558SAl Viro compat_dev_t st_dev; 54bb898558SAl Viro u16 __pad1; 55bb898558SAl Viro compat_ino_t st_ino; 56bb898558SAl Viro compat_mode_t st_mode; 57bb898558SAl Viro compat_nlink_t st_nlink; 58bb898558SAl Viro __compat_uid_t st_uid; 59bb898558SAl Viro __compat_gid_t st_gid; 60bb898558SAl Viro compat_dev_t st_rdev; 61bb898558SAl Viro u16 __pad2; 62bb898558SAl Viro u32 st_size; 63bb898558SAl Viro u32 st_blksize; 64bb898558SAl Viro u32 st_blocks; 65bb898558SAl Viro u32 st_atime; 66bb898558SAl Viro u32 st_atime_nsec; 67bb898558SAl Viro u32 st_mtime; 68bb898558SAl Viro u32 st_mtime_nsec; 69bb898558SAl Viro u32 st_ctime; 70bb898558SAl Viro u32 st_ctime_nsec; 71bb898558SAl Viro u32 __unused4; 72bb898558SAl Viro u32 __unused5; 73bb898558SAl Viro }; 74bb898558SAl Viro 75bb898558SAl Viro struct compat_flock { 76bb898558SAl Viro short l_type; 77bb898558SAl Viro short l_whence; 78bb898558SAl Viro compat_off_t l_start; 79bb898558SAl Viro compat_off_t l_len; 80bb898558SAl Viro compat_pid_t l_pid; 81bb898558SAl Viro }; 82bb898558SAl Viro 83bb898558SAl Viro #define F_GETLK64 12 /* using 'struct flock64' */ 84bb898558SAl Viro #define F_SETLK64 13 85bb898558SAl Viro #define F_SETLKW64 14 86bb898558SAl Viro 87bb898558SAl Viro /* 88bb898558SAl Viro * IA32 uses 4 byte alignment for 64 bit quantities, 89bb898558SAl Viro * so we need to pack this structure. 90bb898558SAl Viro */ 91bb898558SAl Viro struct compat_flock64 { 92bb898558SAl Viro short l_type; 93bb898558SAl Viro short l_whence; 94bb898558SAl Viro compat_loff_t l_start; 95bb898558SAl Viro compat_loff_t l_len; 96bb898558SAl Viro compat_pid_t l_pid; 97bb898558SAl Viro } __attribute__((packed)); 98bb898558SAl Viro 99bb898558SAl Viro struct compat_statfs { 100bb898558SAl Viro int f_type; 101bb898558SAl Viro int f_bsize; 102bb898558SAl Viro int f_blocks; 103bb898558SAl Viro int f_bfree; 104bb898558SAl Viro int f_bavail; 105bb898558SAl Viro int f_files; 106bb898558SAl Viro int f_ffree; 107bb898558SAl Viro compat_fsid_t f_fsid; 108bb898558SAl Viro int f_namelen; /* SunOS ignores this field. */ 109bb898558SAl Viro int f_frsize; 110bb898558SAl Viro int f_spare[5]; 111bb898558SAl Viro }; 112bb898558SAl Viro 113bb898558SAl Viro #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 114bb898558SAl Viro #define COMPAT_RLIM_INFINITY 0xffffffff 115bb898558SAl Viro 116bb898558SAl Viro typedef u32 compat_old_sigset_t; /* at least 32 bits */ 117bb898558SAl Viro 118bb898558SAl Viro #define _COMPAT_NSIG 64 119bb898558SAl Viro #define _COMPAT_NSIG_BPW 32 120bb898558SAl Viro 121bb898558SAl Viro typedef u32 compat_sigset_word; 122bb898558SAl Viro 123bb898558SAl Viro #define COMPAT_OFF_T_MAX 0x7fffffff 124bb898558SAl Viro #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 125bb898558SAl Viro 126bb898558SAl Viro struct compat_ipc64_perm { 127bb898558SAl Viro compat_key_t key; 128bb898558SAl Viro __compat_uid32_t uid; 129bb898558SAl Viro __compat_gid32_t gid; 130bb898558SAl Viro __compat_uid32_t cuid; 131bb898558SAl Viro __compat_gid32_t cgid; 132bb898558SAl Viro unsigned short mode; 133bb898558SAl Viro unsigned short __pad1; 134bb898558SAl Viro unsigned short seq; 135bb898558SAl Viro unsigned short __pad2; 136bb898558SAl Viro compat_ulong_t unused1; 137bb898558SAl Viro compat_ulong_t unused2; 138bb898558SAl Viro }; 139bb898558SAl Viro 140bb898558SAl Viro struct compat_semid64_ds { 141bb898558SAl Viro struct compat_ipc64_perm sem_perm; 142bb898558SAl Viro compat_time_t sem_otime; 143bb898558SAl Viro compat_ulong_t __unused1; 144bb898558SAl Viro compat_time_t sem_ctime; 145bb898558SAl Viro compat_ulong_t __unused2; 146bb898558SAl Viro compat_ulong_t sem_nsems; 147bb898558SAl Viro compat_ulong_t __unused3; 148bb898558SAl Viro compat_ulong_t __unused4; 149bb898558SAl Viro }; 150bb898558SAl Viro 151bb898558SAl Viro struct compat_msqid64_ds { 152bb898558SAl Viro struct compat_ipc64_perm msg_perm; 153bb898558SAl Viro compat_time_t msg_stime; 154bb898558SAl Viro compat_ulong_t __unused1; 155bb898558SAl Viro compat_time_t msg_rtime; 156bb898558SAl Viro compat_ulong_t __unused2; 157bb898558SAl Viro compat_time_t msg_ctime; 158bb898558SAl Viro compat_ulong_t __unused3; 159bb898558SAl Viro compat_ulong_t msg_cbytes; 160bb898558SAl Viro compat_ulong_t msg_qnum; 161bb898558SAl Viro compat_ulong_t msg_qbytes; 162bb898558SAl Viro compat_pid_t msg_lspid; 163bb898558SAl Viro compat_pid_t msg_lrpid; 164bb898558SAl Viro compat_ulong_t __unused4; 165bb898558SAl Viro compat_ulong_t __unused5; 166bb898558SAl Viro }; 167bb898558SAl Viro 168bb898558SAl Viro struct compat_shmid64_ds { 169bb898558SAl Viro struct compat_ipc64_perm shm_perm; 170bb898558SAl Viro compat_size_t shm_segsz; 171bb898558SAl Viro compat_time_t shm_atime; 172bb898558SAl Viro compat_ulong_t __unused1; 173bb898558SAl Viro compat_time_t shm_dtime; 174bb898558SAl Viro compat_ulong_t __unused2; 175bb898558SAl Viro compat_time_t shm_ctime; 176bb898558SAl Viro compat_ulong_t __unused3; 177bb898558SAl Viro compat_pid_t shm_cpid; 178bb898558SAl Viro compat_pid_t shm_lpid; 179bb898558SAl Viro compat_ulong_t shm_nattch; 180bb898558SAl Viro compat_ulong_t __unused4; 181bb898558SAl Viro compat_ulong_t __unused5; 182bb898558SAl Viro }; 183bb898558SAl Viro 184bb898558SAl Viro /* 185bb898558SAl Viro * The type of struct elf_prstatus.pr_reg in compatible core dumps. 186bb898558SAl Viro */ 187bb898558SAl Viro typedef struct user_regs_struct32 compat_elf_gregset_t; 188bb898558SAl Viro 189bb898558SAl Viro /* 190bb898558SAl Viro * A pointer passed in from user mode. This should not 191bb898558SAl Viro * be used for syscall parameters, just declare them 192bb898558SAl Viro * as pointers because the syscall entry code will have 193bb898558SAl Viro * appropriately converted them already. 194bb898558SAl Viro */ 195bb898558SAl Viro typedef u32 compat_uptr_t; 196bb898558SAl Viro 197bb898558SAl Viro static inline void __user *compat_ptr(compat_uptr_t uptr) 198bb898558SAl Viro { 199bb898558SAl Viro return (void __user *)(unsigned long)uptr; 200bb898558SAl Viro } 201bb898558SAl Viro 202bb898558SAl Viro static inline compat_uptr_t ptr_to_compat(void __user *uptr) 203bb898558SAl Viro { 204bb898558SAl Viro return (u32)(unsigned long)uptr; 205bb898558SAl Viro } 206bb898558SAl Viro 207bb898558SAl Viro static inline void __user *compat_alloc_user_space(long len) 208bb898558SAl Viro { 209bb898558SAl Viro struct pt_regs *regs = task_pt_regs(current); 210bb898558SAl Viro return (void __user *)regs->sp - len; 211bb898558SAl Viro } 212bb898558SAl Viro 213bb898558SAl Viro static inline int is_compat_task(void) 214bb898558SAl Viro { 215bb898558SAl Viro return current_thread_info()->status & TS_COMPAT; 216bb898558SAl Viro } 217bb898558SAl Viro 218bb898558SAl Viro #endif /* ASM_X86__COMPAT_H */ 219