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>
40 #include <linux/rcupdate.h>
41 #include <linux/vs_cvirt.h>
45 #include <asm/uaccess.h>
46 #include <asm/system.h>
47 #include <asm/sysinfo.h>
48 #include <asm/hwrpb.h>
49 #include <asm/processor.h>
51 extern int do_pipe(int *);
54 * Brk needs to return an error. Still support Linux's brk(0) query idiom,
55 * which OSF programs just shouldn't be doing. We're still not quite
56 * identical to OSF as we don't return 0 on success, but doing otherwise
57 * would require changes to libc. Hopefully this is good enough.
59 asmlinkage unsigned long
60 osf_brk(unsigned long brk)
62 unsigned long retval = sys_brk(brk);
63 if (brk && brk != retval)
69 * This is pure guess-work..
72 osf_set_program_attributes(unsigned long text_start, unsigned long text_len,
73 unsigned long bss_start, unsigned long bss_len)
79 mm->end_code = bss_start + bss_len;
80 mm->brk = bss_start + bss_len;
82 printk("set_program_attributes(%lx %lx %lx %lx)\n",
83 text_start, text_len, bss_start, bss_len);
90 * OSF/1 directory handling functions...
92 * The "getdents()" interface is much more sane: the "basep" stuff is
93 * braindamage (it can't really handle filesystems where the directory
94 * offset differences aren't the same as "d_reclen").
96 #define NAME_OFFSET offsetof (struct osf_dirent, d_name)
97 #define ROUND_UP(x) (((x)+3) & ~3)
101 unsigned short d_reclen;
102 unsigned short d_namlen;
106 struct osf_dirent_callback {
107 struct osf_dirent __user *dirent;
114 osf_filldir(void *__buf, const char *name, int namlen, loff_t offset,
115 ino_t ino, unsigned int d_type)
117 struct osf_dirent __user *dirent;
118 struct osf_dirent_callback *buf = (struct osf_dirent_callback *) __buf;
119 unsigned int reclen = ROUND_UP(NAME_OFFSET + namlen + 1);
121 buf->error = -EINVAL; /* only used if we fail */
122 if (reclen > buf->count)
125 if (put_user(offset, buf->basep))
129 dirent = buf->dirent;
130 put_user(ino, &dirent->d_ino);
131 put_user(namlen, &dirent->d_namlen);
132 put_user(reclen, &dirent->d_reclen);
133 if (copy_to_user(dirent->d_name, name, namlen) ||
134 put_user(0, dirent->d_name + namlen))
136 dirent = (void __user *)dirent + reclen;
137 buf->dirent = dirent;
138 buf->count -= reclen;
143 osf_getdirentries(unsigned int fd, struct osf_dirent __user *dirent,
144 unsigned int count, long __user *basep)
148 struct osf_dirent_callback buf;
160 error = vfs_readdir(file, osf_filldir, &buf);
165 if (count != buf.count)
166 error = count - buf.count;
177 asmlinkage unsigned long
178 osf_mmap(unsigned long addr, unsigned long len, unsigned long prot,
179 unsigned long flags, unsigned long fd, unsigned long off)
181 struct file *file = NULL;
182 unsigned long ret = -EBADF;
185 if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
186 printk("%s: unimplemented OSF mmap flags %04lx\n",
187 current->comm, flags);
189 if (!(flags & MAP_ANONYMOUS)) {
194 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
195 down_write(¤t->mm->mmap_sem);
196 ret = do_mmap(file, addr, len, prot, flags, off);
197 up_write(¤t->mm->mmap_sem);
206 * The OSF/1 statfs structure is much larger, but this should
207 * match the beginning, at least.
219 __kernel_fsid_t f_fsid;
223 linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
224 unsigned long bufsiz)
226 struct osf_statfs tmp_stat;
228 tmp_stat.f_type = linux_stat->f_type;
229 tmp_stat.f_flags = 0; /* mount flags */
230 tmp_stat.f_fsize = linux_stat->f_frsize;
231 tmp_stat.f_bsize = linux_stat->f_bsize;
232 tmp_stat.f_blocks = linux_stat->f_blocks;
233 tmp_stat.f_bfree = linux_stat->f_bfree;
234 tmp_stat.f_bavail = linux_stat->f_bavail;
235 tmp_stat.f_files = linux_stat->f_files;
236 tmp_stat.f_ffree = linux_stat->f_ffree;
237 tmp_stat.f_fsid = linux_stat->f_fsid;
238 if (bufsiz > sizeof(tmp_stat))
239 bufsiz = sizeof(tmp_stat);
240 return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
244 do_osf_statfs(struct dentry * dentry, struct osf_statfs __user *buffer,
245 unsigned long bufsiz)
247 struct kstatfs linux_stat;
248 int error = vfs_statfs(dentry->d_inode->i_sb, &linux_stat);
250 error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
255 osf_statfs(char __user *path, struct osf_statfs __user *buffer, unsigned long bufsiz)
260 retval = user_path_walk(path, &nd);
262 retval = do_osf_statfs(nd.dentry, buffer, bufsiz);
269 osf_fstatfs(unsigned long fd, struct osf_statfs __user *buffer, unsigned long bufsiz)
277 retval = do_osf_statfs(file->f_dentry, buffer, bufsiz);
284 * Uhh.. OSF/1 mount parameters aren't exactly obvious..
286 * Although to be frank, neither are the native Linux/i386 ones..
289 char __user *devname;
295 char __user *devname;
299 /* This has lots more here, which Linux handles with the option block
300 but I'm too lazy to do the translation into ASCII. */
304 char __user *devname;
310 * We can't actually handle ufs yet, so we translate UFS mounts to
311 * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS
312 * layout is so braindead it's a major headache doing it.
314 * Just how long ago was it written? OTOH our UFS driver may be still
315 * unhappy with OSF UFS. [CHECKME]
318 osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
321 struct cdfs_args tmp;
325 if (copy_from_user(&tmp, args, sizeof(tmp)))
327 devname = getname(tmp.devname);
328 retval = PTR_ERR(devname);
331 retval = do_mount(devname, dirname, "ext2", flags, NULL);
338 osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
341 struct cdfs_args tmp;
345 if (copy_from_user(&tmp, args, sizeof(tmp)))
347 devname = getname(tmp.devname);
348 retval = PTR_ERR(devname);
351 retval = do_mount(devname, dirname, "iso9660", flags, NULL);
358 osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
360 struct procfs_args tmp;
362 if (copy_from_user(&tmp, args, sizeof(tmp)))
365 return do_mount("", dirname, "proc", flags, NULL);
369 osf_mount(unsigned long typenr, char __user *path, int flag, void __user *data)
371 int retval = -EINVAL;
376 name = getname(path);
377 retval = PTR_ERR(name);
382 retval = osf_ufs_mount(name, data, flag);
385 retval = osf_cdfs_mount(name, data, flag);
388 retval = osf_procfs_mount(name, data, flag);
391 printk("osf_mount(%ld, %x)\n", typenr, flag);
400 osf_utsname(char __user *name)
403 struct new_utsname *ptr;
406 ptr = vx_new_utsname();
408 if (copy_to_user(name + 0, ptr->sysname, 32))
410 if (copy_to_user(name + 32, ptr->nodename, 32))
412 if (copy_to_user(name + 64, ptr->release, 32))
414 if (copy_to_user(name + 96, ptr->version, 32))
416 if (copy_to_user(name + 128, ptr->machine, 32))
425 asmlinkage unsigned long
426 sys_getpagesize(void)
431 asmlinkage unsigned long
432 sys_getdtablesize(void)
438 * For compatibility with OSF/1 only. Use utsname(2) instead.
441 osf_getdomainname(char __user *name, int namelen)
447 if (!access_ok(VERIFY_WRITE, name, namelen))
455 domainname = vx_new_uts(domainname);
456 for (i = 0; i < len; ++i) {
457 __put_user(domainname[i], name + i);
458 if (domainname[i] == '\0')
467 * The following stuff should move into a header file should it ever
468 * be labeled "officially supported." Right now, there is just enough
469 * support to avoid applications (such as tar) printing error
470 * messages. The attributes are not really implemented.
474 * Values for Property list entry flag
476 #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry
478 #define PLE_FLAG_MASK 0x1 /* Valid flag values */
479 #define PLE_FLAG_ALL -1 /* All flag value */
481 struct proplistname_args {
482 unsigned int pl_mask;
483 unsigned int pl_numnames;
502 struct proplistname_args __user *name_args;
505 int __user *min_buf_size;
509 struct proplistname_args __user *name_args;
512 int __user *min_buf_size;
517 struct proplistname_args __user *name_args;
521 struct proplistname_args __user *name_args;
526 PL_SET = 1, PL_FSET = 2,
527 PL_GET = 3, PL_FGET = 4,
528 PL_DEL = 5, PL_FDEL = 6
532 osf_proplist_syscall(enum pl_code code, union pl_args __user *args)
535 int __user *min_buf_size_ptr;
540 if (get_user(error, &args->set.nbytes))
544 if (get_user(error, &args->fset.nbytes))
548 error = get_user(min_buf_size_ptr, &args->get.min_buf_size);
551 error = put_user(0, min_buf_size_ptr);
554 error = get_user(min_buf_size_ptr, &args->fget.min_buf_size);
557 error = put_user(0, min_buf_size_ptr);
572 osf_sigstack(struct sigstack __user *uss, struct sigstack __user *uoss)
574 unsigned long usp = rdusp();
575 unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size;
576 unsigned long oss_os = on_sig_stack(usp);
583 if (get_user(ss_sp, &uss->ss_sp))
586 /* If the current stack was set with sigaltstack, don't
587 swap stacks while we are on it. */
589 if (current->sas_ss_sp && on_sig_stack(usp))
592 /* Since we don't know the extent of the stack, and we don't
593 track onstack-ness, but rather calculate it, we must
594 presume a size. Ho hum this interface is lossy. */
595 current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
596 current->sas_ss_size = SIGSTKSZ;
601 if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss))
602 || __put_user(oss_sp, &uoss->ss_sp)
603 || __put_user(oss_os, &uoss->ss_onstack))
613 osf_sysinfo(int command, char __user *buf, long count)
615 unsigned long offset;
617 long len, err = -EINVAL;
620 if (offset >= sizeof(sysinfo_table)/sizeof(char *)) {
621 /* Digital UNIX has a few unpublished interfaces here */
622 printk("sysinfo(%d)", command);
629 case 0: res = vx_new_uts(sysname); break;
630 case 1: res = vx_new_uts(nodename); break;
631 case 2: res = vx_new_uts(release); break;
632 case 3: res = vx_new_uts(version); break;
633 case 4: res = vx_new_uts(machine); break;
634 case 5: res = "alpha"; break;
642 if (copy_to_user(buf, res, len))
651 asmlinkage unsigned long
652 osf_getsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes,
653 int __user *start, void __user *arg)
656 struct percpu_struct *cpu;
659 case GSI_IEEE_FP_CONTROL:
660 /* Return current software fp control & status bits. */
661 /* Note that DU doesn't verify available space here. */
663 w = current_thread_info()->ieee_state & IEEE_SW_MASK;
664 w = swcr_update_status(w, rdfpcr());
665 if (put_user(w, (unsigned long __user *) buffer))
669 case GSI_IEEE_STATE_AT_SIGNAL:
671 * Not sure anybody will ever use this weird stuff. These
672 * ops can be used (under OSF/1) to set the fpcr that should
673 * be used when a signal handler starts executing.
678 if (nbytes < sizeof(unsigned int))
680 w = (current_thread_info()->flags >> UAC_SHIFT) & UAC_BITMASK;
681 if (put_user(w, (unsigned int __user *)buffer))
686 if (nbytes < sizeof(unsigned long))
688 cpu = (struct percpu_struct*)
689 ((char*)hwrpb + hwrpb->processor_offset);
691 if (put_user(w, (unsigned long __user*)buffer))
696 if (nbytes < sizeof(*hwrpb))
698 if (copy_to_user(buffer, hwrpb, nbytes) != 0)
709 asmlinkage unsigned long
710 osf_setsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes,
711 int __user *start, void __user *arg)
714 case SSI_IEEE_FP_CONTROL: {
715 unsigned long swcr, fpcr;
719 * Alpha Architecture Handbook 4.7.7.3:
720 * To be fully IEEE compiant, we must track the current IEEE
721 * exception state in software, because spurrious bits can be
722 * set in the trap shadow of a software-complete insn.
725 if (get_user(swcr, (unsigned long __user *)buffer))
727 state = ¤t_thread_info()->ieee_state;
729 /* Update softare trap enable bits. */
730 *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK);
732 /* Update the real fpcr. */
733 fpcr = rdfpcr() & FPCR_DYN_MASK;
734 fpcr |= ieee_swcr_to_fpcr(swcr);
740 case SSI_IEEE_RAISE_EXCEPTION: {
741 unsigned long exc, swcr, fpcr, fex;
744 if (get_user(exc, (unsigned long __user *)buffer))
746 state = ¤t_thread_info()->ieee_state;
747 exc &= IEEE_STATUS_MASK;
749 /* Update softare trap enable bits. */
750 swcr = (*state & IEEE_SW_MASK) | exc;
753 /* Update the real fpcr. */
755 fpcr |= ieee_swcr_to_fpcr(swcr);
758 /* If any exceptions set by this call, and are unmasked,
759 send a signal. Old exceptions are not signaled. */
760 fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
765 if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
766 if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
767 if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
768 if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
769 if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
770 if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
772 info.si_signo = SIGFPE;
774 info.si_code = si_code;
775 info.si_addr = NULL; /* FIXME */
776 send_sig_info(SIGFPE, &info, current);
781 case SSI_IEEE_STATE_AT_SIGNAL:
782 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
784 * Not sure anybody will ever use this weird stuff. These
785 * ops can be used (under OSF/1) to set the fpcr that should
786 * be used when a signal handler starts executing.
791 unsigned long v, w, i;
792 unsigned int old, new;
794 for (i = 0; i < nbytes; ++i) {
796 if (get_user(v, 2*i + (unsigned int __user *)buffer))
798 if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer))
803 old = current_thread_info()->flags;
804 new = old & ~(UAC_BITMASK << UAC_SHIFT);
805 new = new | (w & UAC_BITMASK) << UAC_SHIFT;
806 if (cmpxchg(¤t_thread_info()->flags,
825 /* Translations due to the fact that OSF's time_t is an int. Which
826 affects all sorts of things, like timeval and itimerval. */
828 extern struct timezone sys_tz;
829 extern int do_adjtimex(struct timex *);
838 struct timeval32 it_interval;
839 struct timeval32 it_value;
843 get_tv32(struct timeval *o, struct timeval32 __user *i)
845 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
846 (__get_user(o->tv_sec, &i->tv_sec) |
847 __get_user(o->tv_usec, &i->tv_usec)));
851 put_tv32(struct timeval32 __user *o, struct timeval *i)
853 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
854 (__put_user(i->tv_sec, &o->tv_sec) |
855 __put_user(i->tv_usec, &o->tv_usec)));
859 get_it32(struct itimerval *o, struct itimerval32 __user *i)
861 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
862 (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
863 __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
864 __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
865 __get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
869 put_it32(struct itimerval32 __user *o, struct itimerval *i)
871 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
872 (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
873 __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
874 __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
875 __put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
879 jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value)
881 value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
882 value->tv_sec = jiffies / HZ;
886 osf_gettimeofday(struct timeval32 __user *tv, struct timezone __user *tz)
890 do_gettimeofday(&ktv);
891 if (put_tv32(tv, &ktv))
895 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
902 osf_settimeofday(struct timeval32 __user *tv, struct timezone __user *tz)
908 if (get_tv32((struct timeval *)&kts, tv))
912 if (copy_from_user(&ktz, tz, sizeof(*tz)))
918 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
922 osf_getitimer(int which, struct itimerval32 __user *it)
924 struct itimerval kit;
927 error = do_getitimer(which, &kit);
928 if (!error && put_it32(it, &kit))
935 osf_setitimer(int which, struct itimerval32 __user *in, struct itimerval32 __user *out)
937 struct itimerval kin, kout;
941 if (get_it32(&kin, in))
944 memset(&kin, 0, sizeof(kin));
946 error = do_setitimer(which, &kin, out ? &kout : NULL);
950 if (put_it32(out, &kout))
958 osf_utimes(char __user *filename, struct timeval32 __user *tvs)
960 struct timeval ktvs[2];
963 if (get_tv32(&ktvs[0], &tvs[0]) ||
964 get_tv32(&ktvs[1], &tvs[1]))
968 return do_utimes(AT_FDCWD, filename, tvs ? ktvs : NULL);
971 #define MAX_SELECT_SECONDS \
972 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
975 osf_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp,
976 struct timeval32 __user *tvp)
986 timeout = MAX_SCHEDULE_TIMEOUT;
990 if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp))
991 || __get_user(sec, &tvp->tv_sec)
992 || __get_user(usec, &tvp->tv_usec)) {
997 if (sec < 0 || usec < 0)
1000 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
1001 timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
1002 timeout += sec * (unsigned long) HZ;
1007 fdt = files_fdtable(current->files);
1008 max_fdset = fdt->max_fdset;
1010 if (n < 0 || n > max_fdset)
1014 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
1015 * since we used fdset we need to allocate memory in units of
1019 size = FDS_BYTES(n);
1020 bits = kmalloc(6 * size, GFP_KERNEL);
1023 fds.in = (unsigned long *) bits;
1024 fds.out = (unsigned long *) (bits + size);
1025 fds.ex = (unsigned long *) (bits + 2*size);
1026 fds.res_in = (unsigned long *) (bits + 3*size);
1027 fds.res_out = (unsigned long *) (bits + 4*size);
1028 fds.res_ex = (unsigned long *) (bits + 5*size);
1030 if ((ret = get_fd_set(n, inp->fds_bits, fds.in)) ||
1031 (ret = get_fd_set(n, outp->fds_bits, fds.out)) ||
1032 (ret = get_fd_set(n, exp->fds_bits, fds.ex)))
1034 zero_fd_set(n, fds.res_in);
1035 zero_fd_set(n, fds.res_out);
1036 zero_fd_set(n, fds.res_ex);
1038 ret = do_select(n, &fds, &timeout);
1040 /* OSF does not copy back the remaining time. */
1045 ret = -ERESTARTNOHAND;
1046 if (signal_pending(current))
1051 if (set_fd_set(n, inp->fds_bits, fds.res_in) ||
1052 set_fd_set(n, outp->fds_bits, fds.res_out) ||
1053 set_fd_set(n, exp->fds_bits, fds.res_ex))
1063 struct timeval32 ru_utime; /* user time used */
1064 struct timeval32 ru_stime; /* system time used */
1065 long ru_maxrss; /* maximum resident set size */
1066 long ru_ixrss; /* integral shared memory size */
1067 long ru_idrss; /* integral unshared data size */
1068 long ru_isrss; /* integral unshared stack size */
1069 long ru_minflt; /* page reclaims */
1070 long ru_majflt; /* page faults */
1071 long ru_nswap; /* swaps */
1072 long ru_inblock; /* block input operations */
1073 long ru_oublock; /* block output operations */
1074 long ru_msgsnd; /* messages sent */
1075 long ru_msgrcv; /* messages received */
1076 long ru_nsignals; /* signals received */
1077 long ru_nvcsw; /* voluntary context switches */
1078 long ru_nivcsw; /* involuntary " */
1082 osf_getrusage(int who, struct rusage32 __user *ru)
1086 if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN)
1089 memset(&r, 0, sizeof(r));
1092 jiffies_to_timeval32(current->utime, &r.ru_utime);
1093 jiffies_to_timeval32(current->stime, &r.ru_stime);
1094 r.ru_minflt = current->min_flt;
1095 r.ru_majflt = current->maj_flt;
1097 case RUSAGE_CHILDREN:
1098 jiffies_to_timeval32(current->signal->cutime, &r.ru_utime);
1099 jiffies_to_timeval32(current->signal->cstime, &r.ru_stime);
1100 r.ru_minflt = current->signal->cmin_flt;
1101 r.ru_majflt = current->signal->cmaj_flt;
1105 return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
1109 osf_wait4(pid_t pid, int __user *ustatus, int options,
1110 struct rusage32 __user *ur)
1114 mm_segment_t old_fs;
1117 return sys_wait4(pid, ustatus, options, NULL);
1122 ret = sys_wait4(pid, ustatus, options, (struct rusage __user *) &r);
1125 if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
1129 err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
1130 err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
1131 err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
1132 err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec);
1133 err |= __put_user(r.ru_maxrss, &ur->ru_maxrss);
1134 err |= __put_user(r.ru_ixrss, &ur->ru_ixrss);
1135 err |= __put_user(r.ru_idrss, &ur->ru_idrss);
1136 err |= __put_user(r.ru_isrss, &ur->ru_isrss);
1137 err |= __put_user(r.ru_minflt, &ur->ru_minflt);
1138 err |= __put_user(r.ru_majflt, &ur->ru_majflt);
1139 err |= __put_user(r.ru_nswap, &ur->ru_nswap);
1140 err |= __put_user(r.ru_inblock, &ur->ru_inblock);
1141 err |= __put_user(r.ru_oublock, &ur->ru_oublock);
1142 err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd);
1143 err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv);
1144 err |= __put_user(r.ru_nsignals, &ur->ru_nsignals);
1145 err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw);
1146 err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw);
1148 return err ? err : ret;
1152 * I don't know what the parameters are: the first one
1153 * seems to be a timeval pointer, and I suspect the second
1154 * one is the time remaining.. Ho humm.. No documentation.
1157 osf_usleep_thread(struct timeval32 __user *sleep, struct timeval32 __user *remain)
1160 unsigned long ticks;
1162 if (get_tv32(&tmp, sleep))
1165 ticks = timeval_to_jiffies(&tmp);
1167 ticks = schedule_timeout_interruptible(ticks);
1170 jiffies_to_timeval(ticks, &tmp);
1171 if (put_tv32(remain, &tmp))
1182 unsigned int modes; /* mode selector */
1183 long offset; /* time offset (usec) */
1184 long freq; /* frequency offset (scaled ppm) */
1185 long maxerror; /* maximum error (usec) */
1186 long esterror; /* estimated error (usec) */
1187 int status; /* clock command/status */
1188 long constant; /* pll time constant */
1189 long precision; /* clock precision (usec) (read only) */
1190 long tolerance; /* clock frequency tolerance (ppm)
1193 struct timeval32 time; /* (read only) */
1194 long tick; /* (modified) usecs between clock ticks */
1196 long ppsfreq; /* pps frequency (scaled ppm) (ro) */
1197 long jitter; /* pps jitter (us) (ro) */
1198 int shift; /* interval duration (s) (shift) (ro) */
1199 long stabil; /* pps stability (scaled ppm) (ro) */
1200 long jitcnt; /* jitter limit exceeded (ro) */
1201 long calcnt; /* calibration intervals (ro) */
1202 long errcnt; /* calibration errors (ro) */
1203 long stbcnt; /* stability limit exceeded (ro) */
1205 int :32; int :32; int :32; int :32;
1206 int :32; int :32; int :32; int :32;
1207 int :32; int :32; int :32; int :32;
1211 sys_old_adjtimex(struct timex32 __user *txc_p)
1216 /* copy relevant bits of struct timex. */
1217 if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
1218 copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) -
1219 offsetof(struct timex32, time)))
1222 ret = do_adjtimex(&txc);
1226 /* copy back to timex32 */
1227 if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) ||
1228 (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) -
1229 offsetof(struct timex32, tick))) ||
1230 (put_tv32(&txc_p->time, &txc.time)))
1236 /* Get an address range which is currently unmapped. Similar to the
1237 generic version except that we know how to honor ADDR_LIMIT_32BIT. */
1239 static unsigned long
1240 arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
1241 unsigned long limit)
1243 struct vm_area_struct *vma = find_vma(current->mm, addr);
1246 /* At this point: (!vma || addr < vma->vm_end). */
1247 if (limit - len < addr)
1249 if (!vma || addr + len <= vma->vm_start)
1257 arch_get_unmapped_area(struct file *filp, unsigned long addr,
1258 unsigned long len, unsigned long pgoff,
1259 unsigned long flags)
1261 unsigned long limit;
1263 /* "32 bit" actually means 31 bit, since pointers sign extend. */
1264 if (current->personality & ADDR_LIMIT_32BIT)
1272 /* First, see if the given suggestion fits.
1274 The OSF/1 loader (/sbin/loader) relies on us returning an
1275 address larger than the requested if one exists, which is
1276 a terribly broken way to program.
1278 That said, I can see the use in being able to suggest not
1279 merely specific addresses, but regions of memory -- perhaps
1280 this feature should be incorporated into all ports? */
1283 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
1284 if (addr != (unsigned long) -ENOMEM)
1288 /* Next, try allocating at TASK_UNMAPPED_BASE. */
1289 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
1291 if (addr != (unsigned long) -ENOMEM)
1294 /* Finally, try allocating in low memory. */
1295 addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
1300 #ifdef CONFIG_OSF4_COMPAT
1302 /* Clear top 32 bits of iov_len in the user's buffer for
1303 compatibility with old versions of OSF/1 where iov_len
1304 was defined as int. */
1306 osf_fix_iov_len(const struct iovec __user *iov, unsigned long count)
1310 for (i = 0 ; i < count ; i++) {
1311 int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1;
1313 if (put_user(0, iov_len_high))
1320 osf_readv(unsigned long fd, const struct iovec __user * vector, unsigned long count)
1322 if (unlikely(personality(current->personality) == PER_OSF4))
1323 if (osf_fix_iov_len(vector, count))
1325 return sys_readv(fd, vector, count);
1329 osf_writev(unsigned long fd, const struct iovec __user * vector, unsigned long count)
1331 if (unlikely(personality(current->personality) == PER_OSF4))
1332 if (osf_fix_iov_len(vector, count))
1334 return sys_writev(fd, vector, count);