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 asmlinkage unsigned long
58 osf_brk(unsigned long brk)
60 unsigned long retval = sys_brk(brk);
61 if (brk && brk != retval)
67 * This is pure guess-work..
70 osf_set_program_attributes(unsigned long text_start, unsigned long text_len,
71 unsigned long bss_start, unsigned long bss_len)
77 mm->end_code = bss_start + bss_len;
78 mm->start_brk = bss_start + bss_len;
79 mm->brk = bss_start + bss_len;
81 printk("set_program_attributes(%lx %lx %lx %lx)\n",
82 text_start, text_len, bss_start, bss_len);
89 * OSF/1 directory handling functions...
91 * The "getdents()" interface is much more sane: the "basep" stuff is
92 * braindamage (it can't really handle filesystems where the directory
93 * offset differences aren't the same as "d_reclen").
95 #define NAME_OFFSET offsetof (struct osf_dirent, d_name)
99 unsigned short d_reclen;
100 unsigned short d_namlen;
104 struct osf_dirent_callback {
105 struct osf_dirent __user *dirent;
112 osf_filldir(void *__buf, const char *name, int namlen, loff_t offset,
113 u64 ino, unsigned int d_type)
115 struct osf_dirent __user *dirent;
116 struct osf_dirent_callback *buf = (struct osf_dirent_callback *) __buf;
117 unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32));
120 buf->error = -EINVAL; /* only used if we fail */
121 if (reclen > buf->count)
124 if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
125 buf->error = -EOVERFLOW;
129 if (put_user(offset, buf->basep))
133 dirent = buf->dirent;
134 if (put_user(d_ino, &dirent->d_ino) ||
135 put_user(namlen, &dirent->d_namlen) ||
136 put_user(reclen, &dirent->d_reclen) ||
137 copy_to_user(dirent->d_name, name, namlen) ||
138 put_user(0, dirent->d_name + namlen))
140 dirent = (void __user *)dirent + reclen;
141 buf->dirent = dirent;
142 buf->count -= reclen;
145 buf->error = -EFAULT;
150 osf_getdirentries(unsigned int fd, struct osf_dirent __user *dirent,
151 unsigned int count, long __user *basep)
155 struct osf_dirent_callback buf;
167 error = vfs_readdir(file, osf_filldir, &buf);
172 if (count != buf.count)
173 error = count - buf.count;
183 asmlinkage unsigned long
184 osf_mmap(unsigned long addr, unsigned long len, unsigned long prot,
185 unsigned long flags, unsigned long fd, unsigned long off)
187 struct file *file = NULL;
188 unsigned long ret = -EBADF;
191 if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
192 printk("%s: unimplemented OSF mmap flags %04lx\n",
193 current->comm, flags);
195 if (!(flags & MAP_ANONYMOUS)) {
200 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
201 down_write(¤t->mm->mmap_sem);
202 ret = do_mmap(file, addr, len, prot, flags, off);
203 up_write(¤t->mm->mmap_sem);
212 * The OSF/1 statfs structure is much larger, but this should
213 * match the beginning, at least.
225 __kernel_fsid_t f_fsid;
229 linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
230 unsigned long bufsiz)
232 struct osf_statfs tmp_stat;
234 tmp_stat.f_type = linux_stat->f_type;
235 tmp_stat.f_flags = 0; /* mount flags */
236 tmp_stat.f_fsize = linux_stat->f_frsize;
237 tmp_stat.f_bsize = linux_stat->f_bsize;
238 tmp_stat.f_blocks = linux_stat->f_blocks;
239 tmp_stat.f_bfree = linux_stat->f_bfree;
240 tmp_stat.f_bavail = linux_stat->f_bavail;
241 tmp_stat.f_files = linux_stat->f_files;
242 tmp_stat.f_ffree = linux_stat->f_ffree;
243 tmp_stat.f_fsid = linux_stat->f_fsid;
244 if (bufsiz > sizeof(tmp_stat))
245 bufsiz = sizeof(tmp_stat);
246 return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
250 do_osf_statfs(struct dentry * dentry, struct osf_statfs __user *buffer,
251 unsigned long bufsiz)
253 struct kstatfs linux_stat;
254 int error = vfs_statfs(dentry, &linux_stat);
256 error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
261 osf_statfs(char __user *pathname, struct osf_statfs __user *buffer, unsigned long bufsiz)
266 retval = user_path(pathname, &path);
268 retval = do_osf_statfs(path.dentry, buffer, bufsiz);
275 osf_fstatfs(unsigned long fd, struct osf_statfs __user *buffer, unsigned long bufsiz)
283 retval = do_osf_statfs(file->f_path.dentry, buffer, bufsiz);
290 * Uhh.. OSF/1 mount parameters aren't exactly obvious..
292 * Although to be frank, neither are the native Linux/i386 ones..
295 char __user *devname;
301 char __user *devname;
305 /* This has lots more here, which Linux handles with the option block
306 but I'm too lazy to do the translation into ASCII. */
310 char __user *devname;
316 * We can't actually handle ufs yet, so we translate UFS mounts to
317 * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS
318 * layout is so braindead it's a major headache doing it.
320 * Just how long ago was it written? OTOH our UFS driver may be still
321 * unhappy with OSF UFS. [CHECKME]
324 osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
327 struct cdfs_args tmp;
331 if (copy_from_user(&tmp, args, sizeof(tmp)))
333 devname = getname(tmp.devname);
334 retval = PTR_ERR(devname);
337 retval = do_mount(devname, dirname, "ext2", flags, NULL);
344 osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
347 struct cdfs_args tmp;
351 if (copy_from_user(&tmp, args, sizeof(tmp)))
353 devname = getname(tmp.devname);
354 retval = PTR_ERR(devname);
357 retval = do_mount(devname, dirname, "iso9660", flags, NULL);
364 osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
366 struct procfs_args tmp;
368 if (copy_from_user(&tmp, args, sizeof(tmp)))
371 return do_mount("", dirname, "proc", flags, NULL);
375 osf_mount(unsigned long typenr, char __user *path, int flag, void __user *data)
377 int retval = -EINVAL;
382 name = getname(path);
383 retval = PTR_ERR(name);
388 retval = osf_ufs_mount(name, data, flag);
391 retval = osf_cdfs_mount(name, data, flag);
394 retval = osf_procfs_mount(name, data, flag);
397 printk("osf_mount(%ld, %x)\n", typenr, flag);
406 osf_utsname(char __user *name)
412 if (copy_to_user(name + 0, utsname()->sysname, 32))
414 if (copy_to_user(name + 32, utsname()->nodename, 32))
416 if (copy_to_user(name + 64, utsname()->release, 32))
418 if (copy_to_user(name + 96, utsname()->version, 32))
420 if (copy_to_user(name + 128, utsname()->machine, 32))
429 asmlinkage unsigned long
430 sys_getpagesize(void)
435 asmlinkage unsigned long
436 sys_getdtablesize(void)
438 return sysctl_nr_open;
442 * For compatibility with OSF/1 only. Use utsname(2) instead.
445 osf_getdomainname(char __user *name, int namelen)
450 if (!access_ok(VERIFY_WRITE, name, namelen))
458 for (i = 0; i < len; ++i) {
459 __put_user(utsname()->domainname[i], name + i);
460 if (utsname()->domainname[i] == '\0')
469 * The following stuff should move into a header file should it ever
470 * be labeled "officially supported." Right now, there is just enough
471 * support to avoid applications (such as tar) printing error
472 * messages. The attributes are not really implemented.
476 * Values for Property list entry flag
478 #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry
480 #define PLE_FLAG_MASK 0x1 /* Valid flag values */
481 #define PLE_FLAG_ALL -1 /* All flag value */
483 struct proplistname_args {
484 unsigned int pl_mask;
485 unsigned int pl_numnames;
504 struct proplistname_args __user *name_args;
507 int __user *min_buf_size;
511 struct proplistname_args __user *name_args;
514 int __user *min_buf_size;
519 struct proplistname_args __user *name_args;
523 struct proplistname_args __user *name_args;
528 PL_SET = 1, PL_FSET = 2,
529 PL_GET = 3, PL_FGET = 4,
530 PL_DEL = 5, PL_FDEL = 6
534 osf_proplist_syscall(enum pl_code code, union pl_args __user *args)
537 int __user *min_buf_size_ptr;
542 if (get_user(error, &args->set.nbytes))
546 if (get_user(error, &args->fset.nbytes))
550 error = get_user(min_buf_size_ptr, &args->get.min_buf_size);
553 error = put_user(0, min_buf_size_ptr);
556 error = get_user(min_buf_size_ptr, &args->fget.min_buf_size);
559 error = put_user(0, min_buf_size_ptr);
574 osf_sigstack(struct sigstack __user *uss, struct sigstack __user *uoss)
576 unsigned long usp = rdusp();
577 unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size;
578 unsigned long oss_os = on_sig_stack(usp);
585 if (get_user(ss_sp, &uss->ss_sp))
588 /* If the current stack was set with sigaltstack, don't
589 swap stacks while we are on it. */
591 if (current->sas_ss_sp && on_sig_stack(usp))
594 /* Since we don't know the extent of the stack, and we don't
595 track onstack-ness, but rather calculate it, we must
596 presume a size. Ho hum this interface is lossy. */
597 current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
598 current->sas_ss_size = SIGSTKSZ;
603 if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss))
604 || __put_user(oss_sp, &uoss->ss_sp)
605 || __put_user(oss_os, &uoss->ss_onstack))
615 osf_sysinfo(int command, char __user *buf, long count)
617 char *sysinfo_table[] = {
623 "alpha", /* instruction set architecture */
624 "dummy", /* hardware serial number */
625 "dummy", /* hardware manufacturer */
626 "dummy", /* secure RPC domain */
628 unsigned long offset;
630 long len, err = -EINVAL;
633 if (offset >= ARRAY_SIZE(sysinfo_table)) {
634 /* Digital UNIX has a few unpublished interfaces here */
635 printk("sysinfo(%d)", command);
640 res = sysinfo_table[offset];
644 if (copy_to_user(buf, res, len))
653 asmlinkage unsigned long
654 osf_getsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes,
655 int __user *start, void __user *arg)
658 struct percpu_struct *cpu;
661 case GSI_IEEE_FP_CONTROL:
662 /* Return current software fp control & status bits. */
663 /* Note that DU doesn't verify available space here. */
665 w = current_thread_info()->ieee_state & IEEE_SW_MASK;
666 w = swcr_update_status(w, rdfpcr());
667 if (put_user(w, (unsigned long __user *) buffer))
671 case GSI_IEEE_STATE_AT_SIGNAL:
673 * Not sure anybody will ever use this weird stuff. These
674 * ops can be used (under OSF/1) to set the fpcr that should
675 * be used when a signal handler starts executing.
680 if (nbytes < sizeof(unsigned int))
682 w = (current_thread_info()->flags >> UAC_SHIFT) & UAC_BITMASK;
683 if (put_user(w, (unsigned int __user *)buffer))
688 if (nbytes < sizeof(unsigned long))
690 cpu = (struct percpu_struct*)
691 ((char*)hwrpb + hwrpb->processor_offset);
693 if (put_user(w, (unsigned long __user*)buffer))
698 if (nbytes < sizeof(*hwrpb))
700 if (copy_to_user(buffer, hwrpb, nbytes) != 0)
711 asmlinkage unsigned long
712 osf_setsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes,
713 int __user *start, void __user *arg)
716 case SSI_IEEE_FP_CONTROL: {
717 unsigned long swcr, fpcr;
721 * Alpha Architecture Handbook 4.7.7.3:
722 * To be fully IEEE compiant, we must track the current IEEE
723 * exception state in software, because spurious bits can be
724 * set in the trap shadow of a software-complete insn.
727 if (get_user(swcr, (unsigned long __user *)buffer))
729 state = ¤t_thread_info()->ieee_state;
731 /* Update softare trap enable bits. */
732 *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK);
734 /* Update the real fpcr. */
735 fpcr = rdfpcr() & FPCR_DYN_MASK;
736 fpcr |= ieee_swcr_to_fpcr(swcr);
742 case SSI_IEEE_RAISE_EXCEPTION: {
743 unsigned long exc, swcr, fpcr, fex;
746 if (get_user(exc, (unsigned long __user *)buffer))
748 state = ¤t_thread_info()->ieee_state;
749 exc &= IEEE_STATUS_MASK;
751 /* Update softare trap enable bits. */
752 swcr = (*state & IEEE_SW_MASK) | exc;
755 /* Update the real fpcr. */
757 fpcr |= ieee_swcr_to_fpcr(swcr);
760 /* If any exceptions set by this call, and are unmasked,
761 send a signal. Old exceptions are not signaled. */
762 fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
767 if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
768 if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
769 if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
770 if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
771 if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
772 if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
774 info.si_signo = SIGFPE;
776 info.si_code = si_code;
777 info.si_addr = NULL; /* FIXME */
778 send_sig_info(SIGFPE, &info, current);
783 case SSI_IEEE_STATE_AT_SIGNAL:
784 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
786 * Not sure anybody will ever use this weird stuff. These
787 * ops can be used (under OSF/1) to set the fpcr that should
788 * be used when a signal handler starts executing.
793 unsigned long v, w, i;
794 unsigned int old, new;
796 for (i = 0; i < nbytes; ++i) {
798 if (get_user(v, 2*i + (unsigned int __user *)buffer))
800 if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer))
805 old = current_thread_info()->flags;
806 new = old & ~(UAC_BITMASK << UAC_SHIFT);
807 new = new | (w & UAC_BITMASK) << UAC_SHIFT;
808 if (cmpxchg(¤t_thread_info()->flags,
827 /* Translations due to the fact that OSF's time_t is an int. Which
828 affects all sorts of things, like timeval and itimerval. */
830 extern struct timezone sys_tz;
839 struct timeval32 it_interval;
840 struct timeval32 it_value;
844 get_tv32(struct timeval *o, struct timeval32 __user *i)
846 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
847 (__get_user(o->tv_sec, &i->tv_sec) |
848 __get_user(o->tv_usec, &i->tv_usec)));
852 put_tv32(struct timeval32 __user *o, struct timeval *i)
854 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
855 (__put_user(i->tv_sec, &o->tv_sec) |
856 __put_user(i->tv_usec, &o->tv_usec)));
860 get_it32(struct itimerval *o, struct itimerval32 __user *i)
862 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
863 (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
864 __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
865 __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
866 __get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
870 put_it32(struct itimerval32 __user *o, struct itimerval *i)
872 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
873 (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
874 __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
875 __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
876 __put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
880 jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value)
882 value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
883 value->tv_sec = jiffies / HZ;
887 osf_gettimeofday(struct timeval32 __user *tv, struct timezone __user *tz)
891 do_gettimeofday(&ktv);
892 if (put_tv32(tv, &ktv))
896 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
903 osf_settimeofday(struct timeval32 __user *tv, struct timezone __user *tz)
909 if (get_tv32((struct timeval *)&kts, tv))
913 if (copy_from_user(&ktz, tz, sizeof(*tz)))
919 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
923 osf_getitimer(int which, struct itimerval32 __user *it)
925 struct itimerval kit;
928 error = do_getitimer(which, &kit);
929 if (!error && put_it32(it, &kit))
936 osf_setitimer(int which, struct itimerval32 __user *in, struct itimerval32 __user *out)
938 struct itimerval kin, kout;
942 if (get_it32(&kin, in))
945 memset(&kin, 0, sizeof(kin));
947 error = do_setitimer(which, &kin, out ? &kout : NULL);
951 if (put_it32(out, &kout))
959 osf_utimes(char __user *filename, struct timeval32 __user *tvs)
961 struct timespec tv[2];
964 struct timeval ktvs[2];
965 if (get_tv32(&ktvs[0], &tvs[0]) ||
966 get_tv32(&ktvs[1], &tvs[1]))
969 if (ktvs[0].tv_usec < 0 || ktvs[0].tv_usec >= 1000000 ||
970 ktvs[1].tv_usec < 0 || ktvs[1].tv_usec >= 1000000)
973 tv[0].tv_sec = ktvs[0].tv_sec;
974 tv[0].tv_nsec = 1000 * ktvs[0].tv_usec;
975 tv[1].tv_sec = ktvs[1].tv_sec;
976 tv[1].tv_nsec = 1000 * ktvs[1].tv_usec;
979 return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0);
982 #define MAX_SELECT_SECONDS \
983 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
986 osf_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp,
987 struct timeval32 __user *tvp)
989 s64 timeout = MAX_SCHEDULE_TIMEOUT;
993 if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp))
994 || __get_user(sec, &tvp->tv_sec)
995 || __get_user(usec, &tvp->tv_usec)) {
999 if (sec < 0 || usec < 0)
1002 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
1003 timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
1004 timeout += sec * (unsigned long) HZ;
1008 /* OSF does not copy back the remaining time. */
1009 return core_sys_select(n, inp, outp, exp, &timeout);
1013 struct timeval32 ru_utime; /* user time used */
1014 struct timeval32 ru_stime; /* system time used */
1015 long ru_maxrss; /* maximum resident set size */
1016 long ru_ixrss; /* integral shared memory size */
1017 long ru_idrss; /* integral unshared data size */
1018 long ru_isrss; /* integral unshared stack size */
1019 long ru_minflt; /* page reclaims */
1020 long ru_majflt; /* page faults */
1021 long ru_nswap; /* swaps */
1022 long ru_inblock; /* block input operations */
1023 long ru_oublock; /* block output operations */
1024 long ru_msgsnd; /* messages sent */
1025 long ru_msgrcv; /* messages received */
1026 long ru_nsignals; /* signals received */
1027 long ru_nvcsw; /* voluntary context switches */
1028 long ru_nivcsw; /* involuntary " */
1032 osf_getrusage(int who, struct rusage32 __user *ru)
1036 if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN)
1039 memset(&r, 0, sizeof(r));
1042 jiffies_to_timeval32(current->utime, &r.ru_utime);
1043 jiffies_to_timeval32(current->stime, &r.ru_stime);
1044 r.ru_minflt = current->min_flt;
1045 r.ru_majflt = current->maj_flt;
1047 case RUSAGE_CHILDREN:
1048 jiffies_to_timeval32(current->signal->cutime, &r.ru_utime);
1049 jiffies_to_timeval32(current->signal->cstime, &r.ru_stime);
1050 r.ru_minflt = current->signal->cmin_flt;
1051 r.ru_majflt = current->signal->cmaj_flt;
1055 return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
1059 osf_wait4(pid_t pid, int __user *ustatus, int options,
1060 struct rusage32 __user *ur)
1064 mm_segment_t old_fs;
1067 return sys_wait4(pid, ustatus, options, NULL);
1072 ret = sys_wait4(pid, ustatus, options, (struct rusage __user *) &r);
1075 if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
1079 err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
1080 err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
1081 err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
1082 err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec);
1083 err |= __put_user(r.ru_maxrss, &ur->ru_maxrss);
1084 err |= __put_user(r.ru_ixrss, &ur->ru_ixrss);
1085 err |= __put_user(r.ru_idrss, &ur->ru_idrss);
1086 err |= __put_user(r.ru_isrss, &ur->ru_isrss);
1087 err |= __put_user(r.ru_minflt, &ur->ru_minflt);
1088 err |= __put_user(r.ru_majflt, &ur->ru_majflt);
1089 err |= __put_user(r.ru_nswap, &ur->ru_nswap);
1090 err |= __put_user(r.ru_inblock, &ur->ru_inblock);
1091 err |= __put_user(r.ru_oublock, &ur->ru_oublock);
1092 err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd);
1093 err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv);
1094 err |= __put_user(r.ru_nsignals, &ur->ru_nsignals);
1095 err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw);
1096 err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw);
1098 return err ? err : ret;
1102 * I don't know what the parameters are: the first one
1103 * seems to be a timeval pointer, and I suspect the second
1104 * one is the time remaining.. Ho humm.. No documentation.
1107 osf_usleep_thread(struct timeval32 __user *sleep, struct timeval32 __user *remain)
1110 unsigned long ticks;
1112 if (get_tv32(&tmp, sleep))
1115 ticks = timeval_to_jiffies(&tmp);
1117 ticks = schedule_timeout_interruptible(ticks);
1120 jiffies_to_timeval(ticks, &tmp);
1121 if (put_tv32(remain, &tmp))
1132 unsigned int modes; /* mode selector */
1133 long offset; /* time offset (usec) */
1134 long freq; /* frequency offset (scaled ppm) */
1135 long maxerror; /* maximum error (usec) */
1136 long esterror; /* estimated error (usec) */
1137 int status; /* clock command/status */
1138 long constant; /* pll time constant */
1139 long precision; /* clock precision (usec) (read only) */
1140 long tolerance; /* clock frequency tolerance (ppm)
1143 struct timeval32 time; /* (read only) */
1144 long tick; /* (modified) usecs between clock ticks */
1146 long ppsfreq; /* pps frequency (scaled ppm) (ro) */
1147 long jitter; /* pps jitter (us) (ro) */
1148 int shift; /* interval duration (s) (shift) (ro) */
1149 long stabil; /* pps stability (scaled ppm) (ro) */
1150 long jitcnt; /* jitter limit exceeded (ro) */
1151 long calcnt; /* calibration intervals (ro) */
1152 long errcnt; /* calibration errors (ro) */
1153 long stbcnt; /* stability limit exceeded (ro) */
1155 int :32; int :32; int :32; int :32;
1156 int :32; int :32; int :32; int :32;
1157 int :32; int :32; int :32; int :32;
1161 sys_old_adjtimex(struct timex32 __user *txc_p)
1166 /* copy relevant bits of struct timex. */
1167 if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
1168 copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) -
1169 offsetof(struct timex32, time)))
1172 ret = do_adjtimex(&txc);
1176 /* copy back to timex32 */
1177 if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) ||
1178 (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) -
1179 offsetof(struct timex32, tick))) ||
1180 (put_tv32(&txc_p->time, &txc.time)))
1186 /* Get an address range which is currently unmapped. Similar to the
1187 generic version except that we know how to honor ADDR_LIMIT_32BIT. */
1189 static unsigned long
1190 arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
1191 unsigned long limit)
1193 struct vm_area_struct *vma = find_vma(current->mm, addr);
1196 /* At this point: (!vma || addr < vma->vm_end). */
1197 if (limit - len < addr)
1199 if (!vma || addr + len <= vma->vm_start)
1207 arch_get_unmapped_area(struct file *filp, unsigned long addr,
1208 unsigned long len, unsigned long pgoff,
1209 unsigned long flags)
1211 unsigned long limit;
1213 /* "32 bit" actually means 31 bit, since pointers sign extend. */
1214 if (current->personality & ADDR_LIMIT_32BIT)
1222 if (flags & MAP_FIXED)
1225 /* First, see if the given suggestion fits.
1227 The OSF/1 loader (/sbin/loader) relies on us returning an
1228 address larger than the requested if one exists, which is
1229 a terribly broken way to program.
1231 That said, I can see the use in being able to suggest not
1232 merely specific addresses, but regions of memory -- perhaps
1233 this feature should be incorporated into all ports? */
1236 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
1237 if (addr != (unsigned long) -ENOMEM)
1241 /* Next, try allocating at TASK_UNMAPPED_BASE. */
1242 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
1244 if (addr != (unsigned long) -ENOMEM)
1247 /* Finally, try allocating in low memory. */
1248 addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
1253 #ifdef CONFIG_OSF4_COMPAT
1255 /* Clear top 32 bits of iov_len in the user's buffer for
1256 compatibility with old versions of OSF/1 where iov_len
1257 was defined as int. */
1259 osf_fix_iov_len(const struct iovec __user *iov, unsigned long count)
1263 for (i = 0 ; i < count ; i++) {
1264 int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1;
1266 if (put_user(0, iov_len_high))
1273 osf_readv(unsigned long fd, const struct iovec __user * vector, unsigned long count)
1275 if (unlikely(personality(current->personality) == PER_OSF4))
1276 if (osf_fix_iov_len(vector, count))
1278 return sys_readv(fd, vector, count);
1282 osf_writev(unsigned long fd, const struct iovec __user * vector, unsigned long count)
1284 if (unlikely(personality(current->personality) == PER_OSF4))
1285 if (osf_fix_iov_len(vector, count))
1287 return sys_writev(fd, vector, count);