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/a.out.h>
26 #include <linux/utsname.h>
27 #include <linux/time.h>
28 #include <linux/timex.h>
29 #include <linux/major.h>
30 #include <linux/stat.h>
31 #include <linux/mman.h>
32 #include <linux/shm.h>
33 #include <linux/poll.h>
34 #include <linux/file.h>
35 #include <linux/types.h>
36 #include <linux/ipc.h>
37 #include <linux/namei.h>
38 #include <linux/uio.h>
39 #include <linux/vfs.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->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(de) ((int) ((de)->d_name - (char __user *) (de)))
95 #define ROUND_UP(x) (((x)+3) & ~3)
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 ino_t 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 = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
119 buf->error = -EINVAL; /* only used if we fail */
120 if (reclen > buf->count)
123 if (put_user(offset, buf->basep))
127 dirent = buf->dirent;
128 put_user(ino, &dirent->d_ino);
129 put_user(namlen, &dirent->d_namlen);
130 put_user(reclen, &dirent->d_reclen);
131 if (copy_to_user(dirent->d_name, name, namlen) ||
132 put_user(0, dirent->d_name + namlen))
134 dirent = (void __user *)dirent + reclen;
135 buf->dirent = dirent;
136 buf->count -= reclen;
141 osf_getdirentries(unsigned int fd, struct osf_dirent __user *dirent,
142 unsigned int count, long __user *basep)
146 struct osf_dirent_callback buf;
158 error = vfs_readdir(file, osf_filldir, &buf);
163 if (count != buf.count)
164 error = count - buf.count;
175 asmlinkage unsigned long
176 osf_mmap(unsigned long addr, unsigned long len, unsigned long prot,
177 unsigned long flags, unsigned long fd, unsigned long off)
179 struct file *file = NULL;
180 unsigned long ret = -EBADF;
183 if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
184 printk("%s: unimplemented OSF mmap flags %04lx\n",
185 current->comm, flags);
187 if (!(flags & MAP_ANONYMOUS)) {
192 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
193 down_write(¤t->mm->mmap_sem);
194 ret = do_mmap(file, addr, len, prot, flags, off);
195 up_write(¤t->mm->mmap_sem);
204 * The OSF/1 statfs structure is much larger, but this should
205 * match the beginning, at least.
217 __kernel_fsid_t f_fsid;
221 linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
222 unsigned long bufsiz)
224 struct osf_statfs tmp_stat;
226 tmp_stat.f_type = linux_stat->f_type;
227 tmp_stat.f_flags = 0; /* mount flags */
228 tmp_stat.f_fsize = linux_stat->f_frsize;
229 tmp_stat.f_bsize = linux_stat->f_bsize;
230 tmp_stat.f_blocks = linux_stat->f_blocks;
231 tmp_stat.f_bfree = linux_stat->f_bfree;
232 tmp_stat.f_bavail = linux_stat->f_bavail;
233 tmp_stat.f_files = linux_stat->f_files;
234 tmp_stat.f_ffree = linux_stat->f_ffree;
235 tmp_stat.f_fsid = linux_stat->f_fsid;
236 if (bufsiz > sizeof(tmp_stat))
237 bufsiz = sizeof(tmp_stat);
238 return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
242 do_osf_statfs(struct dentry * dentry, struct osf_statfs __user *buffer,
243 unsigned long bufsiz)
245 struct kstatfs linux_stat;
246 int error = vfs_statfs(dentry->d_inode->i_sb, &linux_stat);
248 error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
253 osf_statfs(char __user *path, struct osf_statfs __user *buffer, unsigned long bufsiz)
258 retval = user_path_walk(path, &nd);
260 retval = do_osf_statfs(nd.dentry, buffer, bufsiz);
267 osf_fstatfs(unsigned long fd, struct osf_statfs __user *buffer, unsigned long bufsiz)
275 retval = do_osf_statfs(file->f_dentry, buffer, bufsiz);
282 * Uhh.. OSF/1 mount parameters aren't exactly obvious..
284 * Although to be frank, neither are the native Linux/i386 ones..
287 char __user *devname;
293 char __user *devname;
297 /* This has lots more here, which Linux handles with the option block
298 but I'm too lazy to do the translation into ASCII. */
302 char __user *devname;
308 * We can't actually handle ufs yet, so we translate UFS mounts to
309 * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS
310 * layout is so braindead it's a major headache doing it.
312 * Just how long ago was it written? OTOH our UFS driver may be still
313 * unhappy with OSF UFS. [CHECKME]
316 osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
319 struct cdfs_args tmp;
323 if (copy_from_user(&tmp, args, sizeof(tmp)))
325 devname = getname(tmp.devname);
326 retval = PTR_ERR(devname);
329 retval = do_mount(devname, dirname, "ext2", flags, NULL);
336 osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
339 struct cdfs_args tmp;
343 if (copy_from_user(&tmp, args, sizeof(tmp)))
345 devname = getname(tmp.devname);
346 retval = PTR_ERR(devname);
349 retval = do_mount(devname, dirname, "iso9660", flags, NULL);
356 osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
358 struct procfs_args tmp;
360 if (copy_from_user(&tmp, args, sizeof(tmp)))
363 return do_mount("", dirname, "proc", flags, NULL);
367 osf_mount(unsigned long typenr, char __user *path, int flag, void __user *data)
369 int retval = -EINVAL;
374 name = getname(path);
375 retval = PTR_ERR(name);
380 retval = osf_ufs_mount(name, data, flag);
383 retval = osf_cdfs_mount(name, data, flag);
386 retval = osf_procfs_mount(name, data, flag);
389 printk("osf_mount(%ld, %x)\n", typenr, flag);
398 osf_utsname(char __user *name)
404 if (copy_to_user(name + 0, system_utsname.sysname, 32))
406 if (copy_to_user(name + 32, system_utsname.nodename, 32))
408 if (copy_to_user(name + 64, system_utsname.release, 32))
410 if (copy_to_user(name + 96, system_utsname.version, 32))
412 if (copy_to_user(name + 128, system_utsname.machine, 32))
421 asmlinkage unsigned long
422 sys_getpagesize(void)
427 asmlinkage unsigned long
428 sys_getdtablesize(void)
434 * For compatibility with OSF/1 only. Use utsname(2) instead.
437 osf_getdomainname(char __user *name, int namelen)
442 error = verify_area(VERIFY_WRITE, name, namelen);
451 for (i = 0; i < len; ++i) {
452 __put_user(system_utsname.domainname[i], name + i);
453 if (system_utsname.domainname[i] == '\0')
462 osf_shmat(int shmid, void __user *shmaddr, int shmflg)
467 err = do_shmat(shmid, shmaddr, shmflg, &raddr);
470 * This works because all user-level addresses are
471 * non-negative longs!
473 return err ? err : (long)raddr;
478 * The following stuff should move into a header file should it ever
479 * be labeled "officially supported." Right now, there is just enough
480 * support to avoid applications (such as tar) printing error
481 * messages. The attributes are not really implemented.
485 * Values for Property list entry flag
487 #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry
489 #define PLE_FLAG_MASK 0x1 /* Valid flag values */
490 #define PLE_FLAG_ALL -1 /* All flag value */
492 struct proplistname_args {
493 unsigned int pl_mask;
494 unsigned int pl_numnames;
513 struct proplistname_args __user *name_args;
516 int __user *min_buf_size;
520 struct proplistname_args __user *name_args;
523 int __user *min_buf_size;
528 struct proplistname_args __user *name_args;
532 struct proplistname_args __user *name_args;
537 PL_SET = 1, PL_FSET = 2,
538 PL_GET = 3, PL_FGET = 4,
539 PL_DEL = 5, PL_FDEL = 6
543 osf_proplist_syscall(enum pl_code code, union pl_args __user *args)
546 int __user *min_buf_size_ptr;
551 if (get_user(error, &args->set.nbytes))
555 if (get_user(error, &args->fset.nbytes))
559 error = get_user(min_buf_size_ptr, &args->get.min_buf_size);
562 error = put_user(0, min_buf_size_ptr);
565 error = get_user(min_buf_size_ptr, &args->fget.min_buf_size);
568 error = put_user(0, min_buf_size_ptr);
583 osf_sigstack(struct sigstack __user *uss, struct sigstack __user *uoss)
585 unsigned long usp = rdusp();
586 unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size;
587 unsigned long oss_os = on_sig_stack(usp);
594 if (get_user(ss_sp, &uss->ss_sp))
597 /* If the current stack was set with sigaltstack, don't
598 swap stacks while we are on it. */
600 if (current->sas_ss_sp && on_sig_stack(usp))
603 /* Since we don't know the extent of the stack, and we don't
604 track onstack-ness, but rather calculate it, we must
605 presume a size. Ho hum this interface is lossy. */
606 current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
607 current->sas_ss_size = SIGSTKSZ;
612 if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss))
613 || __put_user(oss_sp, &uoss->ss_sp)
614 || __put_user(oss_os, &uoss->ss_onstack))
624 osf_sysinfo(int command, char __user *buf, long count)
626 static char * sysinfo_table[] = {
627 system_utsname.sysname,
628 system_utsname.nodename,
629 system_utsname.release,
630 system_utsname.version,
631 system_utsname.machine,
632 "alpha", /* instruction set architecture */
633 "dummy", /* hardware serial number */
634 "dummy", /* hardware manufacturer */
635 "dummy", /* secure RPC domain */
637 unsigned long offset;
639 long len, err = -EINVAL;
642 if (offset >= sizeof(sysinfo_table)/sizeof(char *)) {
643 /* Digital UNIX has a few unpublished interfaces here */
644 printk("sysinfo(%d)", command);
649 res = sysinfo_table[offset];
653 if (copy_to_user(buf, res, len))
662 asmlinkage unsigned long
663 osf_getsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes,
664 int __user *start, void __user *arg)
667 struct percpu_struct *cpu;
670 case GSI_IEEE_FP_CONTROL:
671 /* Return current software fp control & status bits. */
672 /* Note that DU doesn't verify available space here. */
674 w = current_thread_info()->ieee_state & IEEE_SW_MASK;
675 w = swcr_update_status(w, rdfpcr());
676 if (put_user(w, (unsigned long __user *) buffer))
680 case GSI_IEEE_STATE_AT_SIGNAL:
682 * Not sure anybody will ever use this weird stuff. These
683 * ops can be used (under OSF/1) to set the fpcr that should
684 * be used when a signal handler starts executing.
689 if (nbytes < sizeof(unsigned int))
691 w = (current_thread_info()->flags >> UAC_SHIFT) & UAC_BITMASK;
692 if (put_user(w, (unsigned int __user *)buffer))
697 if (nbytes < sizeof(unsigned long))
699 cpu = (struct percpu_struct*)
700 ((char*)hwrpb + hwrpb->processor_offset);
702 if (put_user(w, (unsigned long __user*)buffer))
707 if (nbytes < sizeof(*hwrpb))
709 if (copy_to_user(buffer, hwrpb, nbytes) != 0)
720 asmlinkage unsigned long
721 osf_setsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes,
722 int __user *start, void __user *arg)
725 case SSI_IEEE_FP_CONTROL: {
726 unsigned long swcr, fpcr, fex;
729 * Alpha Architecture Handbook 4.7.7.3:
730 * To be fully IEEE compiant, we must track the current IEEE
731 * exception state in software, because spurrious bits can be
732 * set in the trap shadow of a software-complete insn.
735 /* Update softare trap enable bits. */
736 if (get_user(swcr, (unsigned long __user *)buffer))
738 current_thread_info()->ieee_state
739 = ((current_thread_info()->ieee_state & ~IEEE_SW_MASK)
740 | (swcr & IEEE_SW_MASK));
742 /* Update the real fpcr. */
744 fpcr &= FPCR_DYN_MASK;
745 fpcr |= ieee_swcr_to_fpcr(swcr);
748 /* If any exceptions are now unmasked, send a signal. */
749 fex = ((swcr & IEEE_STATUS_MASK)
750 >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
755 if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
756 if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
757 if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
758 if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
759 if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
760 if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
762 info.si_signo = SIGFPE;
764 info.si_code = si_code;
765 info.si_addr = 0; /* FIXME */
766 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;
820 extern int do_adjtimex(struct timex *);
829 struct timeval32 it_interval;
830 struct timeval32 it_value;
834 get_tv32(struct timeval *o, struct timeval32 __user *i)
836 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
837 (__get_user(o->tv_sec, &i->tv_sec) |
838 __get_user(o->tv_usec, &i->tv_usec)));
842 put_tv32(struct timeval32 __user *o, struct timeval *i)
844 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
845 (__put_user(i->tv_sec, &o->tv_sec) |
846 __put_user(i->tv_usec, &o->tv_usec)));
850 get_it32(struct itimerval *o, struct itimerval32 __user *i)
852 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
853 (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
854 __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
855 __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
856 __get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
860 put_it32(struct itimerval32 __user *o, struct itimerval *i)
862 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
863 (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
864 __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
865 __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
866 __put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
870 jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value)
872 value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
873 value->tv_sec = jiffies / HZ;
877 osf_gettimeofday(struct timeval32 __user *tv, struct timezone __user *tz)
881 do_gettimeofday(&ktv);
882 if (put_tv32(tv, &ktv))
886 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
893 osf_settimeofday(struct timeval32 __user *tv, struct timezone __user *tz)
899 if (get_tv32((struct timeval *)&kts, tv))
903 if (copy_from_user(&ktz, tz, sizeof(*tz)))
909 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
913 osf_getitimer(int which, struct itimerval32 __user *it)
915 struct itimerval kit;
918 error = do_getitimer(which, &kit);
919 if (!error && put_it32(it, &kit))
926 osf_setitimer(int which, struct itimerval32 __user *in, struct itimerval32 __user *out)
928 struct itimerval kin, kout;
932 if (get_it32(&kin, in))
935 memset(&kin, 0, sizeof(kin));
937 error = do_setitimer(which, &kin, out ? &kout : NULL);
941 if (put_it32(out, &kout))
949 osf_utimes(char __user *filename, struct timeval32 __user *tvs)
951 struct timeval ktvs[2];
954 if (get_tv32(&ktvs[0], &tvs[0]) ||
955 get_tv32(&ktvs[1], &tvs[1]))
959 return do_utimes(filename, tvs ? ktvs : 0);
962 #define MAX_SELECT_SECONDS \
963 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
966 osf_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp,
967 struct timeval32 __user *tvp)
972 unsigned long timeout;
975 timeout = MAX_SCHEDULE_TIMEOUT;
979 if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
980 || (ret = __get_user(sec, &tvp->tv_sec))
981 || (ret = __get_user(usec, &tvp->tv_usec)))
985 if (sec < 0 || usec < 0)
988 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
989 timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
990 timeout += sec * (unsigned long) HZ;
995 if (n < 0 || n > current->files->max_fdset)
999 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
1000 * since we used fdset we need to allocate memory in units of
1004 size = FDS_BYTES(n);
1005 bits = kmalloc(6 * size, GFP_KERNEL);
1008 fds.in = (unsigned long *) bits;
1009 fds.out = (unsigned long *) (bits + size);
1010 fds.ex = (unsigned long *) (bits + 2*size);
1011 fds.res_in = (unsigned long *) (bits + 3*size);
1012 fds.res_out = (unsigned long *) (bits + 4*size);
1013 fds.res_ex = (unsigned long *) (bits + 5*size);
1015 if ((ret = get_fd_set(n, inp->fds_bits, fds.in)) ||
1016 (ret = get_fd_set(n, outp->fds_bits, fds.out)) ||
1017 (ret = get_fd_set(n, exp->fds_bits, fds.ex)))
1019 zero_fd_set(n, fds.res_in);
1020 zero_fd_set(n, fds.res_out);
1021 zero_fd_set(n, fds.res_ex);
1023 ret = do_select(n, &fds, &timeout);
1025 /* OSF does not copy back the remaining time. */
1030 ret = -ERESTARTNOHAND;
1031 if (signal_pending(current))
1036 set_fd_set(n, inp->fds_bits, fds.res_in);
1037 set_fd_set(n, outp->fds_bits, fds.res_out);
1038 set_fd_set(n, exp->fds_bits, fds.res_ex);
1047 struct timeval32 ru_utime; /* user time used */
1048 struct timeval32 ru_stime; /* system time used */
1049 long ru_maxrss; /* maximum resident set size */
1050 long ru_ixrss; /* integral shared memory size */
1051 long ru_idrss; /* integral unshared data size */
1052 long ru_isrss; /* integral unshared stack size */
1053 long ru_minflt; /* page reclaims */
1054 long ru_majflt; /* page faults */
1055 long ru_nswap; /* swaps */
1056 long ru_inblock; /* block input operations */
1057 long ru_oublock; /* block output operations */
1058 long ru_msgsnd; /* messages sent */
1059 long ru_msgrcv; /* messages received */
1060 long ru_nsignals; /* signals received */
1061 long ru_nvcsw; /* voluntary context switches */
1062 long ru_nivcsw; /* involuntary " */
1066 osf_getrusage(int who, struct rusage32 __user *ru)
1070 if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN)
1073 memset(&r, 0, sizeof(r));
1076 jiffies_to_timeval32(current->utime, &r.ru_utime);
1077 jiffies_to_timeval32(current->stime, &r.ru_stime);
1078 r.ru_minflt = current->min_flt;
1079 r.ru_majflt = current->maj_flt;
1081 case RUSAGE_CHILDREN:
1082 jiffies_to_timeval32(current->cutime, &r.ru_utime);
1083 jiffies_to_timeval32(current->cstime, &r.ru_stime);
1084 r.ru_minflt = current->cmin_flt;
1085 r.ru_majflt = current->cmaj_flt;
1088 jiffies_to_timeval32(current->utime + current->cutime,
1090 jiffies_to_timeval32(current->stime + current->cstime,
1092 r.ru_minflt = current->min_flt + current->cmin_flt;
1093 r.ru_majflt = current->maj_flt + current->cmaj_flt;
1097 return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
1101 osf_wait4(pid_t pid, int __user *ustatus, int options, struct rusage32 __user *ur)
1104 return sys_wait4(pid, ustatus, options, NULL);
1108 mm_segment_t old_fs = get_fs();
1111 ret = sys_wait4(pid, &status, options, &r);
1114 if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
1116 __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
1117 __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
1118 __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
1119 __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec);
1120 __put_user(r.ru_maxrss, &ur->ru_maxrss);
1121 __put_user(r.ru_ixrss, &ur->ru_ixrss);
1122 __put_user(r.ru_idrss, &ur->ru_idrss);
1123 __put_user(r.ru_isrss, &ur->ru_isrss);
1124 __put_user(r.ru_minflt, &ur->ru_minflt);
1125 __put_user(r.ru_majflt, &ur->ru_majflt);
1126 __put_user(r.ru_nswap, &ur->ru_nswap);
1127 __put_user(r.ru_inblock, &ur->ru_inblock);
1128 __put_user(r.ru_oublock, &ur->ru_oublock);
1129 __put_user(r.ru_msgsnd, &ur->ru_msgsnd);
1130 __put_user(r.ru_msgrcv, &ur->ru_msgrcv);
1131 __put_user(r.ru_nsignals, &ur->ru_nsignals);
1132 __put_user(r.ru_nvcsw, &ur->ru_nvcsw);
1133 if (__put_user(r.ru_nivcsw, &ur->ru_nivcsw))
1136 if (ustatus && put_user(status, ustatus))
1143 * I don't know what the parameters are: the first one
1144 * seems to be a timeval pointer, and I suspect the second
1145 * one is the time remaining.. Ho humm.. No documentation.
1148 osf_usleep_thread(struct timeval32 __user *sleep, struct timeval32 __user *remain)
1151 unsigned long ticks;
1153 if (get_tv32(&tmp, sleep))
1156 ticks = tmp.tv_usec;
1157 ticks = (ticks + (1000000 / HZ) - 1) / (1000000 / HZ);
1158 ticks += tmp.tv_sec * HZ;
1160 current->state = TASK_INTERRUPTIBLE;
1161 ticks = schedule_timeout(ticks);
1164 tmp.tv_sec = ticks / HZ;
1165 tmp.tv_usec = ticks % HZ;
1166 if (put_tv32(remain, &tmp))
1177 unsigned int modes; /* mode selector */
1178 long offset; /* time offset (usec) */
1179 long freq; /* frequency offset (scaled ppm) */
1180 long maxerror; /* maximum error (usec) */
1181 long esterror; /* estimated error (usec) */
1182 int status; /* clock command/status */
1183 long constant; /* pll time constant */
1184 long precision; /* clock precision (usec) (read only) */
1185 long tolerance; /* clock frequency tolerance (ppm)
1188 struct timeval32 time; /* (read only) */
1189 long tick; /* (modified) usecs between clock ticks */
1191 long ppsfreq; /* pps frequency (scaled ppm) (ro) */
1192 long jitter; /* pps jitter (us) (ro) */
1193 int shift; /* interval duration (s) (shift) (ro) */
1194 long stabil; /* pps stability (scaled ppm) (ro) */
1195 long jitcnt; /* jitter limit exceeded (ro) */
1196 long calcnt; /* calibration intervals (ro) */
1197 long errcnt; /* calibration errors (ro) */
1198 long stbcnt; /* stability limit exceeded (ro) */
1200 int :32; int :32; int :32; int :32;
1201 int :32; int :32; int :32; int :32;
1202 int :32; int :32; int :32; int :32;
1206 sys_old_adjtimex(struct timex32 __user *txc_p)
1211 /* copy relevant bits of struct timex. */
1212 if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
1213 copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) -
1214 offsetof(struct timex32, time)))
1217 ret = do_adjtimex(&txc);
1221 /* copy back to timex32 */
1222 if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) ||
1223 (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) -
1224 offsetof(struct timex32, tick))) ||
1225 (put_tv32(&txc_p->time, &txc.time)))
1231 /* Get an address range which is currently unmapped. Similar to the
1232 generic version except that we know how to honor ADDR_LIMIT_32BIT. */
1234 static unsigned long
1235 arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
1236 unsigned long limit)
1238 struct vm_area_struct *vma = find_vma(current->mm, addr);
1241 /* At this point: (!vma || addr < vma->vm_end). */
1242 if (limit - len < addr)
1244 if (!vma || addr + len <= vma->vm_start)
1252 arch_get_unmapped_area(struct file *filp, unsigned long addr,
1253 unsigned long len, unsigned long pgoff,
1254 unsigned long flags)
1256 unsigned long limit;
1258 /* "32 bit" actually means 31 bit, since pointers sign extend. */
1259 if (current->personality & ADDR_LIMIT_32BIT)
1267 /* First, see if the given suggestion fits.
1269 The OSF/1 loader (/sbin/loader) relies on us returning an
1270 address larger than the requested if one exists, which is
1271 a terribly broken way to program.
1273 That said, I can see the use in being able to suggest not
1274 merely specific addresses, but regions of memory -- perhaps
1275 this feature should be incorporated into all ports? */
1278 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
1279 if (addr != (unsigned long) -ENOMEM)
1283 /* Next, try allocating at TASK_UNMAPPED_BASE. */
1284 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
1286 if (addr != (unsigned long) -ENOMEM)
1289 /* Finally, try allocating in low memory. */
1290 addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
1295 #ifdef CONFIG_OSF4_COMPAT
1297 /* Clear top 32 bits of iov_len in the user's buffer for
1298 compatibility with old versions of OSF/1 where iov_len
1299 was defined as int. */
1301 osf_fix_iov_len(const struct iovec __user *iov, unsigned long count)
1305 for (i = 0 ; i < count ; i++) {
1306 int *iov_len_high = (int __user *)&iov[i].iov_len + 1;
1308 if (put_user(0, iov_len_high))
1315 osf_readv(unsigned long fd, const struct iovec __user * vector, unsigned long count)
1317 if (unlikely(personality(current->personality) == PER_OSF4))
1318 if (osf_fix_iov_len(vector, count))
1320 return sys_readv(fd, vector, count);
1324 osf_writev(unsigned long fd, const struct iovec __user * vector, unsigned long count)
1326 if (unlikely(personality(current->personality) == PER_OSF4))
1327 if (osf_fix_iov_len(vector, count))
1329 return sys_writev(fd, vector, count);