2 * linux/arch/alpha/kernel/osf_sys.c
4 * Copyright (C) 1995 Linus Torvalds
8 * This file handles some of the stranger OSF/1 system call interfaces.
9 * Some of the system calls expect a non-C calling standard, others have
10 * special parameter blocks..
13 #include <linux/errno.h>
14 #include <linux/sched.h>
15 #include <linux/kernel.h>
17 #include <linux/smp.h>
18 #include <linux/smp_lock.h>
19 #include <linux/stddef.h>
20 #include <linux/syscalls.h>
21 #include <linux/unistd.h>
22 #include <linux/ptrace.h>
23 #include <linux/slab.h>
24 #include <linux/user.h>
25 #include <linux/utsname.h>
26 #include <linux/time.h>
27 #include <linux/timex.h>
28 #include <linux/major.h>
29 #include <linux/stat.h>
30 #include <linux/mman.h>
31 #include <linux/shm.h>
32 #include <linux/poll.h>
33 #include <linux/file.h>
34 #include <linux/types.h>
35 #include <linux/ipc.h>
36 #include <linux/namei.h>
37 #include <linux/uio.h>
38 #include <linux/vfs.h>
39 #include <linux/rcupdate.h>
43 #include <asm/uaccess.h>
44 #include <asm/system.h>
45 #include <asm/sysinfo.h>
46 #include <asm/hwrpb.h>
47 #include <asm/processor.h>
49 extern int do_pipe(int *);
52 * Brk needs to return an error. Still support Linux's brk(0) query idiom,
53 * which OSF programs just shouldn't be doing. We're still not quite
54 * identical to OSF as we don't return 0 on success, but doing otherwise
55 * would require changes to libc. Hopefully this is good enough.
57 SYSCALL_DEFINE1(osf_brk, unsigned long, brk)
59 unsigned long retval = sys_brk(brk);
60 if (brk && brk != retval)
66 * This is pure guess-work..
68 SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
69 unsigned long, text_len, unsigned long, bss_start,
70 unsigned long, bss_len)
76 mm->end_code = bss_start + bss_len;
77 mm->start_brk = bss_start + bss_len;
78 mm->brk = bss_start + bss_len;
80 printk("set_program_attributes(%lx %lx %lx %lx)\n",
81 text_start, text_len, bss_start, bss_len);
88 * OSF/1 directory handling functions...
90 * The "getdents()" interface is much more sane: the "basep" stuff is
91 * braindamage (it can't really handle filesystems where the directory
92 * offset differences aren't the same as "d_reclen").
94 #define NAME_OFFSET offsetof (struct osf_dirent, d_name)
98 unsigned short d_reclen;
99 unsigned short d_namlen;
103 struct osf_dirent_callback {
104 struct osf_dirent __user *dirent;
111 osf_filldir(void *__buf, const char *name, int namlen, loff_t offset,
112 u64 ino, unsigned int d_type)
114 struct osf_dirent __user *dirent;
115 struct osf_dirent_callback *buf = (struct osf_dirent_callback *) __buf;
116 unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32));
119 buf->error = -EINVAL; /* only used if we fail */
120 if (reclen > buf->count)
123 if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
124 buf->error = -EOVERFLOW;
128 if (put_user(offset, buf->basep))
132 dirent = buf->dirent;
133 if (put_user(d_ino, &dirent->d_ino) ||
134 put_user(namlen, &dirent->d_namlen) ||
135 put_user(reclen, &dirent->d_reclen) ||
136 copy_to_user(dirent->d_name, name, namlen) ||
137 put_user(0, dirent->d_name + namlen))
139 dirent = (void __user *)dirent + reclen;
140 buf->dirent = dirent;
141 buf->count -= reclen;
144 buf->error = -EFAULT;
148 SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd,
149 struct osf_dirent __user *, dirent, unsigned int, count,
150 long __user *, basep)
154 struct osf_dirent_callback buf;
166 error = vfs_readdir(file, osf_filldir, &buf);
169 if (count != buf.count)
170 error = count - buf.count;
179 SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len,
180 unsigned long, prot, unsigned long, flags, unsigned long, fd,
183 struct file *file = NULL;
184 unsigned long ret = -EBADF;
187 if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
188 printk("%s: unimplemented OSF mmap flags %04lx\n",
189 current->comm, flags);
191 if (!(flags & MAP_ANONYMOUS)) {
196 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
197 down_write(¤t->mm->mmap_sem);
198 ret = do_mmap(file, addr, len, prot, flags, off);
199 up_write(¤t->mm->mmap_sem);
208 * The OSF/1 statfs structure is much larger, but this should
209 * match the beginning, at least.
221 __kernel_fsid_t f_fsid;
225 linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
226 unsigned long bufsiz)
228 struct osf_statfs tmp_stat;
230 tmp_stat.f_type = linux_stat->f_type;
231 tmp_stat.f_flags = 0; /* mount flags */
232 tmp_stat.f_fsize = linux_stat->f_frsize;
233 tmp_stat.f_bsize = linux_stat->f_bsize;
234 tmp_stat.f_blocks = linux_stat->f_blocks;
235 tmp_stat.f_bfree = linux_stat->f_bfree;
236 tmp_stat.f_bavail = linux_stat->f_bavail;
237 tmp_stat.f_files = linux_stat->f_files;
238 tmp_stat.f_ffree = linux_stat->f_ffree;
239 tmp_stat.f_fsid = linux_stat->f_fsid;
240 if (bufsiz > sizeof(tmp_stat))
241 bufsiz = sizeof(tmp_stat);
242 return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
246 do_osf_statfs(struct dentry * dentry, struct osf_statfs __user *buffer,
247 unsigned long bufsiz)
249 struct kstatfs linux_stat;
250 int error = vfs_statfs(dentry, &linux_stat);
252 error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
256 SYSCALL_DEFINE3(osf_statfs, char __user *, pathname,
257 struct osf_statfs __user *, buffer, unsigned long, bufsiz)
262 retval = user_path(pathname, &path);
264 retval = do_osf_statfs(path.dentry, buffer, bufsiz);
270 SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd,
271 struct osf_statfs __user *, buffer, unsigned long, bufsiz)
279 retval = do_osf_statfs(file->f_path.dentry, buffer, bufsiz);
286 * Uhh.. OSF/1 mount parameters aren't exactly obvious..
288 * Although to be frank, neither are the native Linux/i386 ones..
291 char __user *devname;
297 char __user *devname;
301 /* This has lots more here, which Linux handles with the option block
302 but I'm too lazy to do the translation into ASCII. */
306 char __user *devname;
312 * We can't actually handle ufs yet, so we translate UFS mounts to
313 * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS
314 * layout is so braindead it's a major headache doing it.
316 * Just how long ago was it written? OTOH our UFS driver may be still
317 * unhappy with OSF UFS. [CHECKME]
320 osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
323 struct cdfs_args tmp;
327 if (copy_from_user(&tmp, args, sizeof(tmp)))
329 devname = getname(tmp.devname);
330 retval = PTR_ERR(devname);
333 retval = do_mount(devname, dirname, "ext2", flags, NULL);
340 osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
343 struct cdfs_args tmp;
347 if (copy_from_user(&tmp, args, sizeof(tmp)))
349 devname = getname(tmp.devname);
350 retval = PTR_ERR(devname);
353 retval = do_mount(devname, dirname, "iso9660", flags, NULL);
360 osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
362 struct procfs_args tmp;
364 if (copy_from_user(&tmp, args, sizeof(tmp)))
367 return do_mount("", dirname, "proc", flags, NULL);
370 SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, char __user *, path,
371 int, flag, void __user *, data)
373 int retval = -EINVAL;
378 name = getname(path);
379 retval = PTR_ERR(name);
384 retval = osf_ufs_mount(name, data, flag);
387 retval = osf_cdfs_mount(name, data, flag);
390 retval = osf_procfs_mount(name, data, flag);
393 printk("osf_mount(%ld, %x)\n", typenr, flag);
401 SYSCALL_DEFINE1(osf_utsname, char __user *, name)
407 if (copy_to_user(name + 0, utsname()->sysname, 32))
409 if (copy_to_user(name + 32, utsname()->nodename, 32))
411 if (copy_to_user(name + 64, utsname()->release, 32))
413 if (copy_to_user(name + 96, utsname()->version, 32))
415 if (copy_to_user(name + 128, utsname()->machine, 32))
424 SYSCALL_DEFINE0(getpagesize)
429 SYSCALL_DEFINE0(getdtablesize)
431 return sysctl_nr_open;
435 * For compatibility with OSF/1 only. Use utsname(2) instead.
437 SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen)
442 if (!access_ok(VERIFY_WRITE, name, namelen))
450 for (i = 0; i < len; ++i) {
451 __put_user(utsname()->domainname[i], name + i);
452 if (utsname()->domainname[i] == '\0')
461 * The following stuff should move into a header file should it ever
462 * be labeled "officially supported." Right now, there is just enough
463 * support to avoid applications (such as tar) printing error
464 * messages. The attributes are not really implemented.
468 * Values for Property list entry flag
470 #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry
472 #define PLE_FLAG_MASK 0x1 /* Valid flag values */
473 #define PLE_FLAG_ALL -1 /* All flag value */
475 struct proplistname_args {
476 unsigned int pl_mask;
477 unsigned int pl_numnames;
496 struct proplistname_args __user *name_args;
499 int __user *min_buf_size;
503 struct proplistname_args __user *name_args;
506 int __user *min_buf_size;
511 struct proplistname_args __user *name_args;
515 struct proplistname_args __user *name_args;
520 PL_SET = 1, PL_FSET = 2,
521 PL_GET = 3, PL_FGET = 4,
522 PL_DEL = 5, PL_FDEL = 6
525 SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
526 union pl_args __user *, args)
529 int __user *min_buf_size_ptr;
534 if (get_user(error, &args->set.nbytes))
538 if (get_user(error, &args->fset.nbytes))
542 error = get_user(min_buf_size_ptr, &args->get.min_buf_size);
545 error = put_user(0, min_buf_size_ptr);
548 error = get_user(min_buf_size_ptr, &args->fget.min_buf_size);
551 error = put_user(0, min_buf_size_ptr);
565 SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
566 struct sigstack __user *, uoss)
568 unsigned long usp = rdusp();
569 unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size;
570 unsigned long oss_os = on_sig_stack(usp);
577 if (get_user(ss_sp, &uss->ss_sp))
580 /* If the current stack was set with sigaltstack, don't
581 swap stacks while we are on it. */
583 if (current->sas_ss_sp && on_sig_stack(usp))
586 /* Since we don't know the extent of the stack, and we don't
587 track onstack-ness, but rather calculate it, we must
588 presume a size. Ho hum this interface is lossy. */
589 current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
590 current->sas_ss_size = SIGSTKSZ;
595 if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss))
596 || __put_user(oss_sp, &uoss->ss_sp)
597 || __put_user(oss_os, &uoss->ss_onstack))
606 SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
608 char *sysinfo_table[] = {
614 "alpha", /* instruction set architecture */
615 "dummy", /* hardware serial number */
616 "dummy", /* hardware manufacturer */
617 "dummy", /* secure RPC domain */
619 unsigned long offset;
621 long len, err = -EINVAL;
624 if (offset >= ARRAY_SIZE(sysinfo_table)) {
625 /* Digital UNIX has a few unpublished interfaces here */
626 printk("sysinfo(%d)", command);
631 res = sysinfo_table[offset];
635 if (copy_to_user(buf, res, len))
644 SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
645 unsigned long, nbytes, int __user *, start, void __user *, arg)
648 struct percpu_struct *cpu;
651 case GSI_IEEE_FP_CONTROL:
652 /* Return current software fp control & status bits. */
653 /* Note that DU doesn't verify available space here. */
655 w = current_thread_info()->ieee_state & IEEE_SW_MASK;
656 w = swcr_update_status(w, rdfpcr());
657 if (put_user(w, (unsigned long __user *) buffer))
661 case GSI_IEEE_STATE_AT_SIGNAL:
663 * Not sure anybody will ever use this weird stuff. These
664 * ops can be used (under OSF/1) to set the fpcr that should
665 * be used when a signal handler starts executing.
670 if (nbytes < sizeof(unsigned int))
672 w = (current_thread_info()->flags >> UAC_SHIFT) & UAC_BITMASK;
673 if (put_user(w, (unsigned int __user *)buffer))
678 if (nbytes < sizeof(unsigned long))
680 cpu = (struct percpu_struct*)
681 ((char*)hwrpb + hwrpb->processor_offset);
683 if (put_user(w, (unsigned long __user*)buffer))
688 if (nbytes < sizeof(*hwrpb))
690 if (copy_to_user(buffer, hwrpb, nbytes) != 0)
701 SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
702 unsigned long, nbytes, int __user *, start, void __user *, arg)
705 case SSI_IEEE_FP_CONTROL: {
706 unsigned long swcr, fpcr;
710 * Alpha Architecture Handbook 4.7.7.3:
711 * To be fully IEEE compiant, we must track the current IEEE
712 * exception state in software, because spurious bits can be
713 * set in the trap shadow of a software-complete insn.
716 if (get_user(swcr, (unsigned long __user *)buffer))
718 state = ¤t_thread_info()->ieee_state;
720 /* Update softare trap enable bits. */
721 *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK);
723 /* Update the real fpcr. */
724 fpcr = rdfpcr() & FPCR_DYN_MASK;
725 fpcr |= ieee_swcr_to_fpcr(swcr);
731 case SSI_IEEE_RAISE_EXCEPTION: {
732 unsigned long exc, swcr, fpcr, fex;
735 if (get_user(exc, (unsigned long __user *)buffer))
737 state = ¤t_thread_info()->ieee_state;
738 exc &= IEEE_STATUS_MASK;
740 /* Update softare trap enable bits. */
741 swcr = (*state & IEEE_SW_MASK) | exc;
744 /* Update the real fpcr. */
746 fpcr |= ieee_swcr_to_fpcr(swcr);
749 /* If any exceptions set by this call, and are unmasked,
750 send a signal. Old exceptions are not signaled. */
751 fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
756 if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
757 if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
758 if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
759 if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
760 if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
761 if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
763 info.si_signo = SIGFPE;
765 info.si_code = si_code;
766 info.si_addr = NULL; /* FIXME */
767 send_sig_info(SIGFPE, &info, current);
772 case SSI_IEEE_STATE_AT_SIGNAL:
773 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
775 * Not sure anybody will ever use this weird stuff. These
776 * ops can be used (under OSF/1) to set the fpcr that should
777 * be used when a signal handler starts executing.
782 unsigned long v, w, i;
783 unsigned int old, new;
785 for (i = 0; i < nbytes; ++i) {
787 if (get_user(v, 2*i + (unsigned int __user *)buffer))
789 if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer))
794 old = current_thread_info()->flags;
795 new = old & ~(UAC_BITMASK << UAC_SHIFT);
796 new = new | (w & UAC_BITMASK) << UAC_SHIFT;
797 if (cmpxchg(¤t_thread_info()->flags,
816 /* Translations due to the fact that OSF's time_t is an int. Which
817 affects all sorts of things, like timeval and itimerval. */
819 extern struct timezone sys_tz;
828 struct timeval32 it_interval;
829 struct timeval32 it_value;
833 get_tv32(struct timeval *o, struct timeval32 __user *i)
835 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
836 (__get_user(o->tv_sec, &i->tv_sec) |
837 __get_user(o->tv_usec, &i->tv_usec)));
841 put_tv32(struct timeval32 __user *o, struct timeval *i)
843 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
844 (__put_user(i->tv_sec, &o->tv_sec) |
845 __put_user(i->tv_usec, &o->tv_usec)));
849 get_it32(struct itimerval *o, struct itimerval32 __user *i)
851 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
852 (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
853 __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
854 __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
855 __get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
859 put_it32(struct itimerval32 __user *o, struct itimerval *i)
861 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
862 (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
863 __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
864 __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
865 __put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
869 jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value)
871 value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
872 value->tv_sec = jiffies / HZ;
875 SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv,
876 struct timezone __user *, tz)
880 do_gettimeofday(&ktv);
881 if (put_tv32(tv, &ktv))
885 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
891 SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv,
892 struct timezone __user *, tz)
898 if (get_tv32((struct timeval *)&kts, tv))
902 if (copy_from_user(&ktz, tz, sizeof(*tz)))
908 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
911 SYSCALL_DEFINE2(osf_getitimer, int, which, struct itimerval32 __user *, it)
913 struct itimerval kit;
916 error = do_getitimer(which, &kit);
917 if (!error && put_it32(it, &kit))
923 SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in,
924 struct itimerval32 __user *, out)
926 struct itimerval kin, kout;
930 if (get_it32(&kin, in))
933 memset(&kin, 0, sizeof(kin));
935 error = do_setitimer(which, &kin, out ? &kout : NULL);
939 if (put_it32(out, &kout))
946 SYSCALL_DEFINE2(osf_utimes, char __user *, filename,
947 struct timeval32 __user *, tvs)
949 struct timespec tv[2];
952 struct timeval ktvs[2];
953 if (get_tv32(&ktvs[0], &tvs[0]) ||
954 get_tv32(&ktvs[1], &tvs[1]))
957 if (ktvs[0].tv_usec < 0 || ktvs[0].tv_usec >= 1000000 ||
958 ktvs[1].tv_usec < 0 || ktvs[1].tv_usec >= 1000000)
961 tv[0].tv_sec = ktvs[0].tv_sec;
962 tv[0].tv_nsec = 1000 * ktvs[0].tv_usec;
963 tv[1].tv_sec = ktvs[1].tv_sec;
964 tv[1].tv_nsec = 1000 * ktvs[1].tv_usec;
967 return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0);
970 #define MAX_SELECT_SECONDS \
971 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
973 SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp,
974 fd_set __user *, exp, struct timeval32 __user *, tvp)
976 struct timespec end_time, *to = NULL;
982 if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp))
983 || __get_user(sec, &tvp->tv_sec)
984 || __get_user(usec, &tvp->tv_usec)) {
988 if (sec < 0 || usec < 0)
991 if (poll_select_set_timeout(to, sec, usec * NSEC_PER_USEC))
996 /* OSF does not copy back the remaining time. */
997 return core_sys_select(n, inp, outp, exp, to);
1001 struct timeval32 ru_utime; /* user time used */
1002 struct timeval32 ru_stime; /* system time used */
1003 long ru_maxrss; /* maximum resident set size */
1004 long ru_ixrss; /* integral shared memory size */
1005 long ru_idrss; /* integral unshared data size */
1006 long ru_isrss; /* integral unshared stack size */
1007 long ru_minflt; /* page reclaims */
1008 long ru_majflt; /* page faults */
1009 long ru_nswap; /* swaps */
1010 long ru_inblock; /* block input operations */
1011 long ru_oublock; /* block output operations */
1012 long ru_msgsnd; /* messages sent */
1013 long ru_msgrcv; /* messages received */
1014 long ru_nsignals; /* signals received */
1015 long ru_nvcsw; /* voluntary context switches */
1016 long ru_nivcsw; /* involuntary " */
1019 SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru)
1023 if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN)
1026 memset(&r, 0, sizeof(r));
1029 jiffies_to_timeval32(current->utime, &r.ru_utime);
1030 jiffies_to_timeval32(current->stime, &r.ru_stime);
1031 r.ru_minflt = current->min_flt;
1032 r.ru_majflt = current->maj_flt;
1034 case RUSAGE_CHILDREN:
1035 jiffies_to_timeval32(current->signal->cutime, &r.ru_utime);
1036 jiffies_to_timeval32(current->signal->cstime, &r.ru_stime);
1037 r.ru_minflt = current->signal->cmin_flt;
1038 r.ru_majflt = current->signal->cmaj_flt;
1042 return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
1045 SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options,
1046 struct rusage32 __user *, ur)
1050 mm_segment_t old_fs;
1053 return sys_wait4(pid, ustatus, options, NULL);
1058 ret = sys_wait4(pid, ustatus, options, (struct rusage __user *) &r);
1061 if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
1065 err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
1066 err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
1067 err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
1068 err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec);
1069 err |= __put_user(r.ru_maxrss, &ur->ru_maxrss);
1070 err |= __put_user(r.ru_ixrss, &ur->ru_ixrss);
1071 err |= __put_user(r.ru_idrss, &ur->ru_idrss);
1072 err |= __put_user(r.ru_isrss, &ur->ru_isrss);
1073 err |= __put_user(r.ru_minflt, &ur->ru_minflt);
1074 err |= __put_user(r.ru_majflt, &ur->ru_majflt);
1075 err |= __put_user(r.ru_nswap, &ur->ru_nswap);
1076 err |= __put_user(r.ru_inblock, &ur->ru_inblock);
1077 err |= __put_user(r.ru_oublock, &ur->ru_oublock);
1078 err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd);
1079 err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv);
1080 err |= __put_user(r.ru_nsignals, &ur->ru_nsignals);
1081 err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw);
1082 err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw);
1084 return err ? err : ret;
1088 * I don't know what the parameters are: the first one
1089 * seems to be a timeval pointer, and I suspect the second
1090 * one is the time remaining.. Ho humm.. No documentation.
1092 SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep,
1093 struct timeval32 __user *, remain)
1096 unsigned long ticks;
1098 if (get_tv32(&tmp, sleep))
1101 ticks = timeval_to_jiffies(&tmp);
1103 ticks = schedule_timeout_interruptible(ticks);
1106 jiffies_to_timeval(ticks, &tmp);
1107 if (put_tv32(remain, &tmp))
1118 unsigned int modes; /* mode selector */
1119 long offset; /* time offset (usec) */
1120 long freq; /* frequency offset (scaled ppm) */
1121 long maxerror; /* maximum error (usec) */
1122 long esterror; /* estimated error (usec) */
1123 int status; /* clock command/status */
1124 long constant; /* pll time constant */
1125 long precision; /* clock precision (usec) (read only) */
1126 long tolerance; /* clock frequency tolerance (ppm)
1129 struct timeval32 time; /* (read only) */
1130 long tick; /* (modified) usecs between clock ticks */
1132 long ppsfreq; /* pps frequency (scaled ppm) (ro) */
1133 long jitter; /* pps jitter (us) (ro) */
1134 int shift; /* interval duration (s) (shift) (ro) */
1135 long stabil; /* pps stability (scaled ppm) (ro) */
1136 long jitcnt; /* jitter limit exceeded (ro) */
1137 long calcnt; /* calibration intervals (ro) */
1138 long errcnt; /* calibration errors (ro) */
1139 long stbcnt; /* stability limit exceeded (ro) */
1141 int :32; int :32; int :32; int :32;
1142 int :32; int :32; int :32; int :32;
1143 int :32; int :32; int :32; int :32;
1146 SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
1151 /* copy relevant bits of struct timex. */
1152 if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
1153 copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) -
1154 offsetof(struct timex32, time)))
1157 ret = do_adjtimex(&txc);
1161 /* copy back to timex32 */
1162 if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) ||
1163 (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) -
1164 offsetof(struct timex32, tick))) ||
1165 (put_tv32(&txc_p->time, &txc.time)))
1171 /* Get an address range which is currently unmapped. Similar to the
1172 generic version except that we know how to honor ADDR_LIMIT_32BIT. */
1174 static unsigned long
1175 arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
1176 unsigned long limit)
1178 struct vm_area_struct *vma = find_vma(current->mm, addr);
1181 /* At this point: (!vma || addr < vma->vm_end). */
1182 if (limit - len < addr)
1184 if (!vma || addr + len <= vma->vm_start)
1192 arch_get_unmapped_area(struct file *filp, unsigned long addr,
1193 unsigned long len, unsigned long pgoff,
1194 unsigned long flags)
1196 unsigned long limit;
1198 /* "32 bit" actually means 31 bit, since pointers sign extend. */
1199 if (current->personality & ADDR_LIMIT_32BIT)
1207 if (flags & MAP_FIXED)
1210 /* First, see if the given suggestion fits.
1212 The OSF/1 loader (/sbin/loader) relies on us returning an
1213 address larger than the requested if one exists, which is
1214 a terribly broken way to program.
1216 That said, I can see the use in being able to suggest not
1217 merely specific addresses, but regions of memory -- perhaps
1218 this feature should be incorporated into all ports? */
1221 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
1222 if (addr != (unsigned long) -ENOMEM)
1226 /* Next, try allocating at TASK_UNMAPPED_BASE. */
1227 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
1229 if (addr != (unsigned long) -ENOMEM)
1232 /* Finally, try allocating in low memory. */
1233 addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
1238 #ifdef CONFIG_OSF4_COMPAT
1240 /* Clear top 32 bits of iov_len in the user's buffer for
1241 compatibility with old versions of OSF/1 where iov_len
1242 was defined as int. */
1244 osf_fix_iov_len(const struct iovec __user *iov, unsigned long count)
1248 for (i = 0 ; i < count ; i++) {
1249 int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1;
1251 if (put_user(0, iov_len_high))
1257 SYSCALL_DEFINE3(osf_readv, unsigned long, fd,
1258 const struct iovec __user *, vector, unsigned long, count)
1260 if (unlikely(personality(current->personality) == PER_OSF4))
1261 if (osf_fix_iov_len(vector, count))
1263 return sys_readv(fd, vector, count);
1266 SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
1267 const struct iovec __user *, vector, unsigned long, count)
1269 if (unlikely(personality(current->personality) == PER_OSF4))
1270 if (osf_fix_iov_len(vector, count))
1272 return sys_writev(fd, vector, count);