arch/s390/kernel/compat_wrapper.S

   1 /*
   2 *    wrapper for 31 bit compatible system calls.
   3 *
   4 *    Copyright IBM Corp. 2000, 2006
   5 *    Author(s): Gerhard Tonn (ton@de.ibm.com),
   6 *               Thomas Spatzier (tspat@de.ibm.com)
   7 */
   8
   9 #include <linux/linkage.h>
  10
  11 ENTRY(sys32_time_wrapper)
  12         llgtr   %r2,%r2                 # int *
  13         jg      compat_sys_time         # branch to system call
  14
  15 #sys32_getpid_wrapper                           # void
  16
  17 ENTRY(sys32_mount_wrapper)
  18         llgtr   %r2,%r2                 # char *
  19         llgtr   %r3,%r3                 # char *
  20         llgtr   %r4,%r4                 # char *
  21         llgfr   %r5,%r5                 # unsigned long
  22         llgtr   %r6,%r6                 # void *
  23         jg      compat_sys_mount        # branch to system call
  24
  25 ENTRY(sys32_ptrace_wrapper)
  26         lgfr    %r2,%r2                 # long
  27         lgfr    %r3,%r3                 # long
  28         llgtr   %r4,%r4                 # long
  29         llgfr   %r5,%r5                 # long
  30         jg      compat_sys_ptrace       # branch to system call
  31
  32 ENTRY(compat_sys_utime_wrapper)
  33         llgtr   %r2,%r2                 # char *
  34         llgtr   %r3,%r3                 # struct compat_utimbuf *
  35         jg      compat_sys_utime        # branch to system call
  36
  37 ENTRY(compat_sys_times_wrapper)
  38         llgtr   %r2,%r2                 # struct compat_tms *
  39         jg      compat_sys_times        # branch to system call
  40
  41 ENTRY(compat_sys_ioctl_wrapper)
  42         llgfr   %r2,%r2                 # unsigned int
  43         llgfr   %r3,%r3                 # unsigned int
  44         llgfr   %r4,%r4                 # unsigned int
  45         jg      compat_sys_ioctl        # branch to system call
  46
  47 ENTRY(compat_sys_fcntl_wrapper)
  48         llgfr   %r2,%r2                 # unsigned int
  49         llgfr   %r3,%r3                 # unsigned int
  50         llgfr   %r4,%r4                 # unsigned long
  51         jg      compat_sys_fcntl        # branch to system call
  52
  53 ENTRY(sys32_ustat_wrapper)
  54         llgfr   %r2,%r2                 # dev_t
  55         llgtr   %r3,%r3                 # struct ustat *
  56         jg      compat_sys_ustat
  57
  58 ENTRY(compat_sys_sigpending_wrapper)
  59         llgtr   %r2,%r2                 # compat_old_sigset_t *
  60         jg      compat_sys_sigpending   # branch to system call
  61
  62 ENTRY(compat_sys_setrlimit_wrapper)
  63         llgfr   %r2,%r2                 # unsigned int
  64         llgtr   %r3,%r3                 # struct rlimit_emu31 *
  65         jg      compat_sys_setrlimit    # branch to system call
  66
  67 ENTRY(compat_sys_old_getrlimit_wrapper)
  68         llgfr   %r2,%r2                 # unsigned int
  69         llgtr   %r3,%r3                 # struct rlimit_emu31 *
  70         jg      compat_sys_old_getrlimit # branch to system call
  71
  72 ENTRY(compat_sys_getrlimit_wrapper)
  73         llgfr   %r2,%r2                 # unsigned int
  74         llgtr   %r3,%r3                 # struct rlimit_emu31 *
  75         jg      compat_sys_getrlimit    # branch to system call
  76
  77 ENTRY(compat_sys_gettimeofday_wrapper)
  78         llgtr   %r2,%r2                 # struct timeval_emu31 *
  79         llgtr   %r3,%r3                 # struct timezone *
  80         jg      compat_sys_gettimeofday # branch to system call
  81
  82 ENTRY(compat_sys_settimeofday_wrapper)
  83         llgtr   %r2,%r2                 # struct timeval_emu31 *
  84         llgtr   %r3,%r3                 # struct timezone *
  85         jg      compat_sys_settimeofday # branch to system call
  86
  87 ENTRY(old32_readdir_wrapper)
  88         llgfr   %r2,%r2                 # unsigned int
  89         llgtr   %r3,%r3                 # void *
  90         llgfr   %r4,%r4                 # unsigned int
  91         jg      compat_sys_old_readdir  # branch to system call
  92
  93 ENTRY(compat_sys_statfs_wrapper)
  94         llgtr   %r2,%r2                 # char *
  95         llgtr   %r3,%r3                 # struct compat_statfs *
  96         jg      compat_sys_statfs       # branch to system call
  97
  98 ENTRY(compat_sys_fstatfs_wrapper)
  99         llgfr   %r2,%r2                 # unsigned int
 100         llgtr   %r3,%r3                 # struct compat_statfs *
 101         jg      compat_sys_fstatfs      # branch to system call
 102
 103 ENTRY(compat_sys_socketcall_wrapper)
 104         lgfr    %r2,%r2                 # int
 105         llgtr   %r3,%r3                 # u32 *
 106         jg      compat_sys_socketcall   # branch to system call
 107
 108 ENTRY(compat_sys_newstat_wrapper)
 109         llgtr   %r2,%r2                 # char *
 110         llgtr   %r3,%r3                 # struct stat_emu31 *
 111         jg      compat_sys_newstat      # branch to system call
 112
 113 ENTRY(compat_sys_newlstat_wrapper)
 114         llgtr   %r2,%r2                 # char *
 115         llgtr   %r3,%r3                 # struct stat_emu31 *
 116         jg      compat_sys_newlstat     # branch to system call
 117
 118 ENTRY(compat_sys_newfstat_wrapper)
 119         llgfr   %r2,%r2                 # unsigned int
 120         llgtr   %r3,%r3                 # struct stat_emu31 *
 121         jg      compat_sys_newfstat     # branch to system call
 122
 123 ENTRY(compat_sys_sysinfo_wrapper)
 124         llgtr   %r2,%r2                 # struct sysinfo_emu31 *
 125         jg      compat_sys_sysinfo      # branch to system call
 126
 127 ENTRY(compat_sys_adjtimex_wrapper)
 128         llgtr   %r2,%r2                 # struct compat_timex *
 129         jg      compat_sys_adjtimex     # branch to system call
 130
 131 ENTRY(sys32_getdents_wrapper)
 132         llgfr   %r2,%r2                 # unsigned int
 133         llgtr   %r3,%r3                 # void *
 134         llgfr   %r4,%r4                 # unsigned int
 135         jg      compat_sys_getdents     # branch to system call
 136
 137 ENTRY(compat_sys_select_wrapper)
 138         lgfr    %r2,%r2                 # int
 139         llgtr   %r3,%r3                 # compat_fd_set *
 140         llgtr   %r4,%r4                 # compat_fd_set *
 141         llgtr   %r5,%r5                 # compat_fd_set *
 142         llgtr   %r6,%r6                 # struct compat_timeval *
 143         jg      compat_sys_select       # branch to system call
 144
 145 ENTRY(compat_sys_readv_wrapper)
 146         lgfr    %r2,%r2                 # int
 147         llgtr   %r3,%r3                 # const struct compat_iovec *
 148         llgfr   %r4,%r4                 # unsigned long
 149         jg      compat_sys_readv        # branch to system call
 150
 151 ENTRY(compat_sys_writev_wrapper)
 152         lgfr    %r2,%r2                 # int
 153         llgtr   %r3,%r3                 # const struct compat_iovec *
 154         llgfr   %r4,%r4                 # unsigned long
 155         jg      compat_sys_writev       # branch to system call
 156
 157 ENTRY(compat_sys_nanosleep_wrapper)
 158         llgtr   %r2,%r2                 # struct compat_timespec *
 159         llgtr   %r3,%r3                 # struct compat_timespec *
 160         jg      compat_sys_nanosleep            # branch to system call
 161
 162 ENTRY(compat_sys_fcntl64_wrapper)
 163         llgfr   %r2,%r2                 # unsigned int
 164         llgfr   %r3,%r3                 # unsigned int
 165         llgfr   %r4,%r4                 # unsigned long
 166         jg      compat_sys_fcntl64      # branch to system call
 167
 168 ENTRY(sys32_stime_wrapper)
 169         llgtr   %r2,%r2                 # long *
 170         jg      compat_sys_stime        # branch to system call
 171
 172 ENTRY(sys32_sched_setaffinity_wrapper)
 173         lgfr    %r2,%r2                 # int
 174         llgfr   %r3,%r3                 # unsigned int
 175         llgtr   %r4,%r4                 # unsigned long *
 176         jg      compat_sys_sched_setaffinity
 177
 178 ENTRY(sys32_sched_getaffinity_wrapper)
 179         lgfr    %r2,%r2                 # int
 180         llgfr   %r3,%r3                 # unsigned int
 181         llgtr   %r4,%r4                 # unsigned long *
 182         jg      compat_sys_sched_getaffinity
 183
 184 ENTRY(sys32_clock_settime_wrapper)
 185         lgfr    %r2,%r2                 # clockid_t (int)
 186         llgtr   %r3,%r3                 # struct compat_timespec *
 187         jg      compat_sys_clock_settime
 188
 189 ENTRY(sys32_clock_gettime_wrapper)
 190         lgfr    %r2,%r2                 # clockid_t (int)
 191         llgtr   %r3,%r3                 # struct compat_timespec *
 192         jg      compat_sys_clock_gettime
 193
 194 ENTRY(sys32_clock_getres_wrapper)
 195         lgfr    %r2,%r2                 # clockid_t (int)
 196         llgtr   %r3,%r3                 # struct compat_timespec *
 197         jg      compat_sys_clock_getres
 198
 199 ENTRY(sys32_clock_nanosleep_wrapper)
 200         lgfr    %r2,%r2                 # clockid_t (int)
 201         lgfr    %r3,%r3                 # int
 202         llgtr   %r4,%r4                 # struct compat_timespec *
 203         llgtr   %r5,%r5                 # struct compat_timespec *
 204         jg      compat_sys_clock_nanosleep
 205
 206 ENTRY(sys32_timer_create_wrapper)
 207         lgfr    %r2,%r2                 # timer_t (int)
 208         llgtr   %r3,%r3                 # struct compat_sigevent *
 209         llgtr   %r4,%r4                 # timer_t *
 210         jg      compat_sys_timer_create
 211
 212 ENTRY(sys32_timer_settime_wrapper)
 213         lgfr    %r2,%r2                 # timer_t (int)
 214         lgfr    %r3,%r3                 # int
 215         llgtr   %r4,%r4                 # struct compat_itimerspec *
 216         llgtr   %r5,%r5                 # struct compat_itimerspec *
 217         jg      compat_sys_timer_settime
 218
 219 ENTRY(sys32_timer_gettime_wrapper)
 220         lgfr    %r2,%r2                 # timer_t (int)
 221         llgtr   %r3,%r3                 # struct compat_itimerspec *
 222         jg      compat_sys_timer_gettime
 223
 224 ENTRY(sys32_io_setup_wrapper)
 225         llgfr   %r2,%r2                 # unsigned int
 226         llgtr   %r3,%r3                 # u32 *
 227         jg      compat_sys_io_setup
 228
 229 ENTRY(sys32_io_getevents_wrapper)
 230         llgfr   %r2,%r2                 # (aio_context_t) u32
 231         lgfr    %r3,%r3                 # long
 232         lgfr    %r4,%r4                 # long
 233         llgtr   %r5,%r5                 # struct io_event *
 234         llgtr   %r6,%r6                 # struct compat_timespec *
 235         jg      compat_sys_io_getevents
 236
 237 ENTRY(sys32_io_submit_wrapper)
 238         llgfr   %r2,%r2                 # (aio_context_t) u32
 239         lgfr    %r3,%r3                 # long
 240         llgtr   %r4,%r4                 # struct iocb **
 241         jg      compat_sys_io_submit
 242
 243 ENTRY(compat_sys_statfs64_wrapper)
 244         llgtr   %r2,%r2                 # const char *
 245         llgfr   %r3,%r3                 # compat_size_t
 246         llgtr   %r4,%r4                 # struct compat_statfs64 *
 247         jg      compat_sys_statfs64
 248
 249 ENTRY(compat_sys_fstatfs64_wrapper)
 250         llgfr   %r2,%r2                 # unsigned int fd
 251         llgfr   %r3,%r3                 # compat_size_t
 252         llgtr   %r4,%r4                 # struct compat_statfs64 *
 253         jg      compat_sys_fstatfs64
 254
 255 ENTRY(compat_sys_mq_open_wrapper)
 256         llgtr   %r2,%r2                 # const char *
 257         lgfr    %r3,%r3                 # int
 258         llgfr   %r4,%r4                 # mode_t
 259         llgtr   %r5,%r5                 # struct compat_mq_attr *
 260         jg      compat_sys_mq_open
 261
 262 ENTRY(compat_sys_mq_timedsend_wrapper)
 263         lgfr    %r2,%r2                 # mqd_t
 264         llgtr   %r3,%r3                 # const char *
 265         llgfr   %r4,%r4                 # size_t
 266         llgfr   %r5,%r5                 # unsigned int
 267         llgtr   %r6,%r6                 # const struct compat_timespec *
 268         jg      compat_sys_mq_timedsend
 269
 270 ENTRY(compat_sys_mq_timedreceive_wrapper)
 271         lgfr    %r2,%r2                 # mqd_t
 272         llgtr   %r3,%r3                 # char *
 273         llgfr   %r4,%r4                 # size_t
 274         llgtr   %r5,%r5                 # unsigned int *
 275         llgtr   %r6,%r6                 # const struct compat_timespec *
 276         jg      compat_sys_mq_timedreceive
 277
 278 ENTRY(compat_sys_mq_notify_wrapper)
 279         lgfr    %r2,%r2                 # mqd_t
 280         llgtr   %r3,%r3                 # struct compat_sigevent *
 281         jg      compat_sys_mq_notify
 282
 283 ENTRY(compat_sys_mq_getsetattr_wrapper)
 284         lgfr    %r2,%r2                 # mqd_t
 285         llgtr   %r3,%r3                 # struct compat_mq_attr *
 286         llgtr   %r4,%r4                 # struct compat_mq_attr *
 287         jg      compat_sys_mq_getsetattr
 288
 289 ENTRY(compat_sys_kexec_load_wrapper)
 290         llgfr   %r2,%r2                 # unsigned long
 291         llgfr   %r3,%r3                 # unsigned long
 292         llgtr   %r4,%r4                 # struct kexec_segment *
 293         llgfr   %r5,%r5                 # unsigned long
 294         jg      compat_sys_kexec_load
 295
 296 ENTRY(compat_sys_futimesat_wrapper)
 297         llgfr   %r2,%r2                 # unsigned int
 298         llgtr   %r3,%r3                 # char *
 299         llgtr   %r4,%r4                 # struct timeval *
 300         jg      compat_sys_futimesat
 301
 302 ENTRY(compat_sys_pselect6_wrapper)
 303         lgfr    %r2,%r2                 # int
 304         llgtr   %r3,%r3                 # fd_set *
 305         llgtr   %r4,%r4                 # fd_set *
 306         llgtr   %r5,%r5                 # fd_set *
 307         llgtr   %r6,%r6                 # struct timespec *
 308         llgt    %r0,164(%r15)           # void *
 309         stg     %r0,160(%r15)
 310         jg      compat_sys_pselect6
 311
 312 ENTRY(compat_sys_ppoll_wrapper)
 313         llgtr   %r2,%r2                 # struct pollfd *
 314         llgfr   %r3,%r3                 # unsigned int
 315         llgtr   %r4,%r4                 # struct timespec *
 316         llgtr   %r5,%r5                 # const sigset_t *
 317         llgfr   %r6,%r6                 # size_t
 318         jg      compat_sys_ppoll
 319
 320 ENTRY(sys_sync_file_range_wrapper)
 321         lgfr    %r2,%r2                 # int
 322         sllg    %r3,%r3,32              # get high word of 64bit loff_t
 323         or      %r3,%r4                 # get low word of 64bit loff_t
 324         sllg    %r4,%r5,32              # get high word of 64bit loff_t
 325         or      %r4,%r6                 # get low word of 64bit loff_t
 326         llgf    %r5,164(%r15)           # unsigned int
 327         jg      sys_sync_file_range
 328
 329 ENTRY(sys_getcpu_wrapper)
 330         llgtr   %r2,%r2                 # unsigned *
 331         llgtr   %r3,%r3                 # unsigned *
 332         llgtr   %r4,%r4                 # struct getcpu_cache *
 333         jg      sys_getcpu
 334
 335 ENTRY(compat_sys_utimes_wrapper)
 336         llgtr   %r2,%r2                 # char *
 337         llgtr   %r3,%r3                 # struct compat_timeval *
 338         jg      compat_sys_utimes
 339
 340 ENTRY(compat_sys_utimensat_wrapper)
 341         llgfr   %r2,%r2                 # unsigned int
 342         llgtr   %r3,%r3                 # char *
 343         llgtr   %r4,%r4                 # struct compat_timespec *
 344         lgfr    %r5,%r5                 # int
 345         jg      compat_sys_utimensat
 346
 347 ENTRY(sys_eventfd_wrapper)
 348         llgfr   %r2,%r2                 # unsigned int
 349         jg      sys_eventfd
 350
 351 ENTRY(sys_fallocate_wrapper)
 352         lgfr    %r2,%r2                 # int
 353         lgfr    %r3,%r3                 # int
 354         sllg    %r4,%r4,32              # get high word of 64bit loff_t
 355         lr      %r4,%r5                 # get low word of 64bit loff_t
 356         sllg    %r5,%r6,32              # get high word of 64bit loff_t
 357         l       %r5,164(%r15)           # get low word of 64bit loff_t
 358         jg      sys_fallocate
 359
 360 ENTRY(sys_timerfd_create_wrapper)
 361         lgfr    %r2,%r2                 # int
 362         lgfr    %r3,%r3                 # int
 363         jg      sys_timerfd_create
 364
 365 ENTRY(sys_eventfd2_wrapper)
 366         llgfr   %r2,%r2                 # unsigned int
 367         lgfr    %r3,%r3                 # int
 368         jg      sys_eventfd2
 369
 370 ENTRY(sys_inotify_init1_wrapper)
 371         lgfr    %r2,%r2                 # int
 372         jg      sys_inotify_init1
 373
 374 ENTRY(sys_pipe2_wrapper)
 375         llgtr   %r2,%r2                 # u32 *
 376         lgfr    %r3,%r3                 # int
 377         jg      sys_pipe2               # branch to system call
 378
 379 ENTRY(sys_dup3_wrapper)
 380         llgfr   %r2,%r2                 # unsigned int
 381         llgfr   %r3,%r3                 # unsigned int
 382         lgfr    %r4,%r4                 # int
 383         jg      sys_dup3                # branch to system call
 384
 385 ENTRY(sys_epoll_create1_wrapper)
 386         lgfr    %r2,%r2                 # int
 387         jg      sys_epoll_create1       # branch to system call
 388
 389 ENTRY(sys_tkill_wrapper)
 390         lgfr    %r2,%r2                 # pid_t
 391         lgfr    %r3,%r3                 # int
 392         jg      sys_tkill               # branch to system call
 393
 394 ENTRY(sys_tgkill_wrapper)
 395         lgfr    %r2,%r2                 # pid_t
 396         lgfr    %r3,%r3                 # pid_t
 397         lgfr    %r4,%r4                 # int
 398         jg      sys_tgkill              # branch to system call
 399
 400 ENTRY(compat_sys_keyctl_wrapper)
 401         llgfr   %r2,%r2                 # u32
 402         llgfr   %r3,%r3                 # u32
 403         llgfr   %r4,%r4                 # u32
 404         llgfr   %r5,%r5                 # u32
 405         llgfr   %r6,%r6                 # u32
 406         jg      compat_sys_keyctl       # branch to system call
 407
 408 ENTRY(sys_perf_event_open_wrapper)
 409         llgtr   %r2,%r2                 # const struct perf_event_attr *
 410         lgfr    %r3,%r3                 # pid_t
 411         lgfr    %r4,%r4                 # int
 412         lgfr    %r5,%r5                 # int
 413         llgfr   %r6,%r6                 # unsigned long
 414         jg      sys_perf_event_open     # branch to system call
 415
 416 ENTRY(sys_clone_wrapper)
 417         llgfr   %r2,%r2                 # unsigned long
 418         llgfr   %r3,%r3                 # unsigned long
 419         llgtr   %r4,%r4                 # int *
 420         llgtr   %r5,%r5                 # int *
 421         jg      sys_clone               # branch to system call
 422
 423 ENTRY(sys32_execve_wrapper)
 424         llgtr   %r2,%r2                 # char *
 425         llgtr   %r3,%r3                 # compat_uptr_t *
 426         llgtr   %r4,%r4                 # compat_uptr_t *
 427         jg      compat_sys_execve       # branch to system call
 428
 429 ENTRY(sys_fanotify_init_wrapper)
 430         llgfr   %r2,%r2                 # unsigned int
 431         llgfr   %r3,%r3                 # unsigned int
 432         jg      sys_fanotify_init       # branch to system call
 433
 434 ENTRY(sys_prlimit64_wrapper)
 435         lgfr    %r2,%r2                 # pid_t
 436         llgfr   %r3,%r3                 # unsigned int
 437         llgtr   %r4,%r4                 # const struct rlimit64 __user *
 438         llgtr   %r5,%r5                 # struct rlimit64 __user *
 439         jg      sys_prlimit64           # branch to system call
 440
 441 ENTRY(sys_name_to_handle_at_wrapper)
 442         lgfr    %r2,%r2                 # int
 443         llgtr   %r3,%r3                 # const char __user *
 444         llgtr   %r4,%r4                 # struct file_handle __user *
 445         llgtr   %r5,%r5                 # int __user *
 446         lgfr    %r6,%r6                 # int
 447         jg      sys_name_to_handle_at
 448
 449 ENTRY(compat_sys_clock_adjtime_wrapper)
 450         lgfr    %r2,%r2                 # clockid_t (int)
 451         llgtr   %r3,%r3                 # struct compat_timex __user *
 452         jg      compat_sys_clock_adjtime
 453
 454 ENTRY(sys_syncfs_wrapper)
 455         lgfr    %r2,%r2                 # int
 456         jg      sys_syncfs
 457
 458 ENTRY(sys_setns_wrapper)
 459         lgfr    %r2,%r2                 # int
 460         lgfr    %r3,%r3                 # int
 461         jg      sys_setns
 462
 463 ENTRY(compat_sys_process_vm_readv_wrapper)
 464         lgfr    %r2,%r2                 # compat_pid_t
 465         llgtr   %r3,%r3                 # struct compat_iovec __user *
 466         llgfr   %r4,%r4                 # unsigned long
 467         llgtr   %r5,%r5                 # struct compat_iovec __user *
 468         llgfr   %r6,%r6                 # unsigned long
 469         llgf    %r0,164(%r15)           # unsigned long
 470         stg     %r0,160(%r15)
 471         jg      compat_sys_process_vm_readv
 472
 473 ENTRY(compat_sys_process_vm_writev_wrapper)
 474         lgfr    %r2,%r2                 # compat_pid_t
 475         llgtr   %r3,%r3                 # struct compat_iovec __user *
 476         llgfr   %r4,%r4                 # unsigned long
 477         llgtr   %r5,%r5                 # struct compat_iovec __user *
 478         llgfr   %r6,%r6                 # unsigned long
 479         llgf    %r0,164(%r15)           # unsigned long
 480         stg     %r0,160(%r15)
 481         jg      compat_sys_process_vm_writev
 482
 483 ENTRY(sys_s390_runtime_instr_wrapper)
 484         lgfr    %r2,%r2                 # int
 485         lgfr    %r3,%r3                 # int
 486         jg      sys_s390_runtime_instr
 487
 488 ENTRY(sys_kcmp_wrapper)
 489         lgfr    %r2,%r2                 # pid_t
 490         lgfr    %r3,%r3                 # pid_t
 491         lgfr    %r4,%r4                 # int
 492         llgfr   %r5,%r5                 # unsigned long
 493         llgfr   %r6,%r6                 # unsigned long
 494         jg      sys_kcmp
 495
 496 ENTRY(sys_finit_module_wrapper)
 497         lgfr    %r2,%r2                 # int
 498         llgtr   %r3,%r3                 # const char __user *
 499         lgfr    %r4,%r4                 # int
 500         jg      sys_finit_module
 501
 502 ENTRY(sys_sched_setattr_wrapper)
 503         lgfr    %r2,%r2                 # pid_t
 504         llgtr   %r3,%r3                 # struct sched_attr __user *
 505         jg      sys_sched_setattr
 506
 507 ENTRY(sys_sched_getattr_wrapper)
 508         lgfr    %r2,%r2                 # pid_t
 509         llgtr   %r3,%r3                 # const char __user *
 510         llgfr   %r4,%r4                 # unsigned int
 511         jg      sys_sched_getattr