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>
44 #include <asm/uaccess.h>
45 #include <asm/system.h>
46 #include <asm/sysinfo.h>
47 #include <asm/hwrpb.h>
48 #include <asm/processor.h>
50 extern int do_pipe(int *);
53 * Brk needs to return an error. Still support Linux's brk(0) query idiom,
54 * which OSF programs just shouldn't be doing. We're still not quite
55 * identical to OSF as we don't return 0 on success, but doing otherwise
56 * would require changes to libc. Hopefully this is good enough.
58 asmlinkage unsigned long
59 osf_brk(unsigned long brk)
61 unsigned long retval = sys_brk(brk);
62 if (brk && brk != retval)
68 * This is pure guess-work..
71 osf_set_program_attributes(unsigned long text_start, unsigned long text_len,
72 unsigned long bss_start, unsigned long bss_len)
78 mm->end_code = 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)
96 #define ROUND_UP(x) (((x)+3) & ~3)
100 unsigned short d_reclen;
101 unsigned short d_namlen;
105 struct osf_dirent_callback {
106 struct osf_dirent __user *dirent;
113 osf_filldir(void *__buf, const char *name, int namlen, loff_t offset,
114 ino_t ino, unsigned int d_type)
116 struct osf_dirent __user *dirent;
117 struct osf_dirent_callback *buf = (struct osf_dirent_callback *) __buf;
118 unsigned int reclen = ROUND_UP(NAME_OFFSET + namlen + 1);
120 buf->error = -EINVAL; /* only used if we fail */
121 if (reclen > buf->count)
124 if (put_user(offset, buf->basep))
128 dirent = buf->dirent;
129 put_user(ino, &dirent->d_ino);
130 put_user(namlen, &dirent->d_namlen);
131 put_user(reclen, &dirent->d_reclen);
132 if (copy_to_user(dirent->d_name, name, namlen) ||
133 put_user(0, dirent->d_name + namlen))
135 dirent = (void __user *)dirent + reclen;
136 buf->dirent = dirent;
137 buf->count -= reclen;
142 osf_getdirentries(unsigned int fd, struct osf_dirent __user *dirent,
143 unsigned int count, long __user *basep)
147 struct osf_dirent_callback buf;
159 error = vfs_readdir(file, osf_filldir, &buf);
164 if (count != buf.count)
165 error = count - buf.count;
176 asmlinkage unsigned long
177 osf_mmap(unsigned long addr, unsigned long len, unsigned long prot,
178 unsigned long flags, unsigned long fd, unsigned long off)
180 struct file *file = NULL;
181 unsigned long ret = -EBADF;
184 if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
185 printk("%s: unimplemented OSF mmap flags %04lx\n",
186 current->comm, flags);
188 if (!(flags & MAP_ANONYMOUS)) {
193 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
194 down_write(¤t->mm->mmap_sem);
195 ret = do_mmap(file, addr, len, prot, flags, off);
196 up_write(¤t->mm->mmap_sem);
205 * The OSF/1 statfs structure is much larger, but this should
206 * match the beginning, at least.
218 __kernel_fsid_t f_fsid;
222 linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
223 unsigned long bufsiz)
225 struct osf_statfs tmp_stat;
227 tmp_stat.f_type = linux_stat->f_type;
228 tmp_stat.f_flags = 0; /* mount flags */
229 tmp_stat.f_fsize = linux_stat->f_frsize;
230 tmp_stat.f_bsize = linux_stat->f_bsize;
231 tmp_stat.f_blocks = linux_stat->f_blocks;
232 tmp_stat.f_bfree = linux_stat->f_bfree;
233 tmp_stat.f_bavail = linux_stat->f_bavail;
234 tmp_stat.f_files = linux_stat->f_files;
235 tmp_stat.f_ffree = linux_stat->f_ffree;
236 tmp_stat.f_fsid = linux_stat->f_fsid;
237 if (bufsiz > sizeof(tmp_stat))
238 bufsiz = sizeof(tmp_stat);
239 return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
243 do_osf_statfs(struct dentry * dentry, struct osf_statfs __user *buffer,
244 unsigned long bufsiz)
246 struct kstatfs linux_stat;
247 int error = vfs_statfs(dentry->d_inode->i_sb, &linux_stat);
249 error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
254 osf_statfs(char __user *path, struct osf_statfs __user *buffer, unsigned long bufsiz)
259 retval = user_path_walk(path, &nd);
261 retval = do_osf_statfs(nd.dentry, buffer, bufsiz);
268 osf_fstatfs(unsigned long fd, struct osf_statfs __user *buffer, unsigned long bufsiz)
276 retval = do_osf_statfs(file->f_dentry, buffer, bufsiz);
283 * Uhh.. OSF/1 mount parameters aren't exactly obvious..
285 * Although to be frank, neither are the native Linux/i386 ones..
288 char __user *devname;
294 char __user *devname;
298 /* This has lots more here, which Linux handles with the option block
299 but I'm too lazy to do the translation into ASCII. */
303 char __user *devname;
309 * We can't actually handle ufs yet, so we translate UFS mounts to
310 * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS
311 * layout is so braindead it's a major headache doing it.
313 * Just how long ago was it written? OTOH our UFS driver may be still
314 * unhappy with OSF UFS. [CHECKME]
317 osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
320 struct cdfs_args tmp;
324 if (copy_from_user(&tmp, args, sizeof(tmp)))
326 devname = getname(tmp.devname);
327 retval = PTR_ERR(devname);
330 retval = do_mount(devname, dirname, "ext2", flags, NULL);
337 osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
340 struct cdfs_args tmp;
344 if (copy_from_user(&tmp, args, sizeof(tmp)))
346 devname = getname(tmp.devname);
347 retval = PTR_ERR(devname);
350 retval = do_mount(devname, dirname, "iso9660", flags, NULL);
357 osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
359 struct procfs_args tmp;
361 if (copy_from_user(&tmp, args, sizeof(tmp)))
364 return do_mount("", dirname, "proc", flags, NULL);
368 osf_mount(unsigned long typenr, char __user *path, int flag, void __user *data)
370 int retval = -EINVAL;
375 name = getname(path);
376 retval = PTR_ERR(name);
381 retval = osf_ufs_mount(name, data, flag);
384 retval = osf_cdfs_mount(name, data, flag);
387 retval = osf_procfs_mount(name, data, flag);
390 printk("osf_mount(%ld, %x)\n", typenr, flag);
399 osf_utsname(char __user *name)
405 if (copy_to_user(name + 0, system_utsname.sysname, 32))
407 if (copy_to_user(name + 32, system_utsname.nodename, 32))
409 if (copy_to_user(name + 64, system_utsname.release, 32))
411 if (copy_to_user(name + 96, system_utsname.version, 32))
413 if (copy_to_user(name + 128, system_utsname.machine, 32))
422 asmlinkage unsigned long
423 sys_getpagesize(void)
428 asmlinkage unsigned long
429 sys_getdtablesize(void)
435 * For compatibility with OSF/1 only. Use utsname(2) instead.
438 osf_getdomainname(char __user *name, int namelen)
443 if (!access_ok(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 * The following stuff should move into a header file should it ever
463 * be labeled "officially supported." Right now, there is just enough
464 * support to avoid applications (such as tar) printing error
465 * messages. The attributes are not really implemented.
469 * Values for Property list entry flag
471 #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry
473 #define PLE_FLAG_MASK 0x1 /* Valid flag values */
474 #define PLE_FLAG_ALL -1 /* All flag value */
476 struct proplistname_args {
477 unsigned int pl_mask;
478 unsigned int pl_numnames;
497 struct proplistname_args __user *name_args;
500 int __user *min_buf_size;
504 struct proplistname_args __user *name_args;
507 int __user *min_buf_size;
512 struct proplistname_args __user *name_args;
516 struct proplistname_args __user *name_args;
521 PL_SET = 1, PL_FSET = 2,
522 PL_GET = 3, PL_FGET = 4,
523 PL_DEL = 5, PL_FDEL = 6
527 osf_proplist_syscall(enum pl_code code, union pl_args __user *args)
530 int __user *min_buf_size_ptr;
535 if (get_user(error, &args->set.nbytes))
539 if (get_user(error, &args->fset.nbytes))
543 error = get_user(min_buf_size_ptr, &args->get.min_buf_size);
546 error = put_user(0, min_buf_size_ptr);
549 error = get_user(min_buf_size_ptr, &args->fget.min_buf_size);
552 error = put_user(0, min_buf_size_ptr);
567 osf_sigstack(struct sigstack __user *uss, struct sigstack __user *uoss)
569 unsigned long usp = rdusp();
570 unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size;
571 unsigned long oss_os = on_sig_stack(usp);
578 if (get_user(ss_sp, &uss->ss_sp))
581 /* If the current stack was set with sigaltstack, don't
582 swap stacks while we are on it. */
584 if (current->sas_ss_sp && on_sig_stack(usp))
587 /* Since we don't know the extent of the stack, and we don't
588 track onstack-ness, but rather calculate it, we must
589 presume a size. Ho hum this interface is lossy. */
590 current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
591 current->sas_ss_size = SIGSTKSZ;
596 if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss))
597 || __put_user(oss_sp, &uoss->ss_sp)
598 || __put_user(oss_os, &uoss->ss_onstack))
608 osf_sysinfo(int command, char __user *buf, long count)
610 static char * sysinfo_table[] = {
611 system_utsname.sysname,
612 system_utsname.nodename,
613 system_utsname.release,
614 system_utsname.version,
615 system_utsname.machine,
616 "alpha", /* instruction set architecture */
617 "dummy", /* hardware serial number */
618 "dummy", /* hardware manufacturer */
619 "dummy", /* secure RPC domain */
621 unsigned long offset;
623 long len, err = -EINVAL;
626 if (offset >= sizeof(sysinfo_table)/sizeof(char *)) {
627 /* Digital UNIX has a few unpublished interfaces here */
628 printk("sysinfo(%d)", command);
633 res = sysinfo_table[offset];
637 if (copy_to_user(buf, res, len))
646 asmlinkage unsigned long
647 osf_getsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes,
648 int __user *start, void __user *arg)
651 struct percpu_struct *cpu;
654 case GSI_IEEE_FP_CONTROL:
655 /* Return current software fp control & status bits. */
656 /* Note that DU doesn't verify available space here. */
658 w = current_thread_info()->ieee_state & IEEE_SW_MASK;
659 w = swcr_update_status(w, rdfpcr());
660 if (put_user(w, (unsigned long __user *) buffer))
664 case GSI_IEEE_STATE_AT_SIGNAL:
666 * Not sure anybody will ever use this weird stuff. These
667 * ops can be used (under OSF/1) to set the fpcr that should
668 * be used when a signal handler starts executing.
673 if (nbytes < sizeof(unsigned int))
675 w = (current_thread_info()->flags >> UAC_SHIFT) & UAC_BITMASK;
676 if (put_user(w, (unsigned int __user *)buffer))
681 if (nbytes < sizeof(unsigned long))
683 cpu = (struct percpu_struct*)
684 ((char*)hwrpb + hwrpb->processor_offset);
686 if (put_user(w, (unsigned long __user*)buffer))
691 if (nbytes < sizeof(*hwrpb))
693 if (copy_to_user(buffer, hwrpb, nbytes) != 0)
704 asmlinkage unsigned long
705 osf_setsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes,
706 int __user *start, void __user *arg)
709 case SSI_IEEE_FP_CONTROL: {
710 unsigned long swcr, fpcr;
714 * Alpha Architecture Handbook 4.7.7.3:
715 * To be fully IEEE compiant, we must track the current IEEE
716 * exception state in software, because spurrious bits can be
717 * set in the trap shadow of a software-complete insn.
720 if (get_user(swcr, (unsigned long __user *)buffer))
722 state = ¤t_thread_info()->ieee_state;
724 /* Update softare trap enable bits. */
725 *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK);
727 /* Update the real fpcr. */
728 fpcr = rdfpcr() & FPCR_DYN_MASK;
729 fpcr |= ieee_swcr_to_fpcr(swcr);
735 case SSI_IEEE_RAISE_EXCEPTION: {
736 unsigned long exc, swcr, fpcr, fex;
739 if (get_user(exc, (unsigned long __user *)buffer))
741 state = ¤t_thread_info()->ieee_state;
742 exc &= IEEE_STATUS_MASK;
744 /* Update softare trap enable bits. */
745 swcr = (*state & IEEE_SW_MASK) | exc;
748 /* Update the real fpcr. */
750 fpcr |= ieee_swcr_to_fpcr(swcr);
753 /* If any exceptions set by this call, and are unmasked,
754 send a signal. Old exceptions are not signaled. */
755 fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
760 if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
761 if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
762 if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
763 if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
764 if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
765 if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
767 info.si_signo = SIGFPE;
769 info.si_code = si_code;
770 info.si_addr = NULL; /* FIXME */
771 send_sig_info(SIGFPE, &info, current);
776 case SSI_IEEE_STATE_AT_SIGNAL:
777 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
779 * Not sure anybody will ever use this weird stuff. These
780 * ops can be used (under OSF/1) to set the fpcr that should
781 * be used when a signal handler starts executing.
786 unsigned long v, w, i;
787 unsigned int old, new;
789 for (i = 0; i < nbytes; ++i) {
791 if (get_user(v, 2*i + (unsigned int __user *)buffer))
793 if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer))
798 old = current_thread_info()->flags;
799 new = old & ~(UAC_BITMASK << UAC_SHIFT);
800 new = new | (w & UAC_BITMASK) << UAC_SHIFT;
801 if (cmpxchg(¤t_thread_info()->flags,
820 /* Translations due to the fact that OSF's time_t is an int. Which
821 affects all sorts of things, like timeval and itimerval. */
823 extern struct timezone sys_tz;
832 struct timeval32 it_interval;
833 struct timeval32 it_value;
837 get_tv32(struct timeval *o, struct timeval32 __user *i)
839 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
840 (__get_user(o->tv_sec, &i->tv_sec) |
841 __get_user(o->tv_usec, &i->tv_usec)));
845 put_tv32(struct timeval32 __user *o, struct timeval *i)
847 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
848 (__put_user(i->tv_sec, &o->tv_sec) |
849 __put_user(i->tv_usec, &o->tv_usec)));
853 get_it32(struct itimerval *o, struct itimerval32 __user *i)
855 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
856 (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
857 __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
858 __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
859 __get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
863 put_it32(struct itimerval32 __user *o, struct itimerval *i)
865 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
866 (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
867 __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
868 __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
869 __put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
873 jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value)
875 value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
876 value->tv_sec = jiffies / HZ;
880 osf_gettimeofday(struct timeval32 __user *tv, struct timezone __user *tz)
884 do_gettimeofday(&ktv);
885 if (put_tv32(tv, &ktv))
889 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
896 osf_settimeofday(struct timeval32 __user *tv, struct timezone __user *tz)
902 if (get_tv32((struct timeval *)&kts, tv))
906 if (copy_from_user(&ktz, tz, sizeof(*tz)))
912 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
916 osf_getitimer(int which, struct itimerval32 __user *it)
918 struct itimerval kit;
921 error = do_getitimer(which, &kit);
922 if (!error && put_it32(it, &kit))
929 osf_setitimer(int which, struct itimerval32 __user *in, struct itimerval32 __user *out)
931 struct itimerval kin, kout;
935 if (get_it32(&kin, in))
938 memset(&kin, 0, sizeof(kin));
940 error = do_setitimer(which, &kin, out ? &kout : NULL);
944 if (put_it32(out, &kout))
952 osf_utimes(char __user *filename, struct timeval32 __user *tvs)
954 struct timeval ktvs[2];
957 if (get_tv32(&ktvs[0], &tvs[0]) ||
958 get_tv32(&ktvs[1], &tvs[1]))
962 return do_utimes(AT_FDCWD, filename, tvs ? ktvs : NULL);
965 #define MAX_SELECT_SECONDS \
966 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
969 osf_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp,
970 struct timeval32 __user *tvp)
980 timeout = MAX_SCHEDULE_TIMEOUT;
984 if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp))
985 || __get_user(sec, &tvp->tv_sec)
986 || __get_user(usec, &tvp->tv_usec)) {
991 if (sec < 0 || usec < 0)
994 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
995 timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
996 timeout += sec * (unsigned long) HZ;
1001 fdt = files_fdtable(current->files);
1002 max_fdset = fdt->max_fdset;
1004 if (n < 0 || n > max_fdset)
1008 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
1009 * since we used fdset we need to allocate memory in units of
1013 size = FDS_BYTES(n);
1014 bits = kmalloc(6 * size, GFP_KERNEL);
1017 fds.in = (unsigned long *) bits;
1018 fds.out = (unsigned long *) (bits + size);
1019 fds.ex = (unsigned long *) (bits + 2*size);
1020 fds.res_in = (unsigned long *) (bits + 3*size);
1021 fds.res_out = (unsigned long *) (bits + 4*size);
1022 fds.res_ex = (unsigned long *) (bits + 5*size);
1024 if ((ret = get_fd_set(n, inp->fds_bits, fds.in)) ||
1025 (ret = get_fd_set(n, outp->fds_bits, fds.out)) ||
1026 (ret = get_fd_set(n, exp->fds_bits, fds.ex)))
1028 zero_fd_set(n, fds.res_in);
1029 zero_fd_set(n, fds.res_out);
1030 zero_fd_set(n, fds.res_ex);
1032 ret = do_select(n, &fds, &timeout);
1034 /* OSF does not copy back the remaining time. */
1039 ret = -ERESTARTNOHAND;
1040 if (signal_pending(current))
1045 if (set_fd_set(n, inp->fds_bits, fds.res_in) ||
1046 set_fd_set(n, outp->fds_bits, fds.res_out) ||
1047 set_fd_set(n, exp->fds_bits, fds.res_ex))
1057 struct timeval32 ru_utime; /* user time used */
1058 struct timeval32 ru_stime; /* system time used */
1059 long ru_maxrss; /* maximum resident set size */
1060 long ru_ixrss; /* integral shared memory size */
1061 long ru_idrss; /* integral unshared data size */
1062 long ru_isrss; /* integral unshared stack size */
1063 long ru_minflt; /* page reclaims */
1064 long ru_majflt; /* page faults */
1065 long ru_nswap; /* swaps */
1066 long ru_inblock; /* block input operations */
1067 long ru_oublock; /* block output operations */
1068 long ru_msgsnd; /* messages sent */
1069 long ru_msgrcv; /* messages received */
1070 long ru_nsignals; /* signals received */
1071 long ru_nvcsw; /* voluntary context switches */
1072 long ru_nivcsw; /* involuntary " */
1076 osf_getrusage(int who, struct rusage32 __user *ru)
1080 if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN)
1083 memset(&r, 0, sizeof(r));
1086 jiffies_to_timeval32(current->utime, &r.ru_utime);
1087 jiffies_to_timeval32(current->stime, &r.ru_stime);
1088 r.ru_minflt = current->min_flt;
1089 r.ru_majflt = current->maj_flt;
1091 case RUSAGE_CHILDREN:
1092 jiffies_to_timeval32(current->signal->cutime, &r.ru_utime);
1093 jiffies_to_timeval32(current->signal->cstime, &r.ru_stime);
1094 r.ru_minflt = current->signal->cmin_flt;
1095 r.ru_majflt = current->signal->cmaj_flt;
1099 return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
1103 osf_wait4(pid_t pid, int __user *ustatus, int options,
1104 struct rusage32 __user *ur)
1108 mm_segment_t old_fs;
1111 return sys_wait4(pid, ustatus, options, NULL);
1116 ret = sys_wait4(pid, ustatus, options, (struct rusage __user *) &r);
1119 if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
1123 err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
1124 err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
1125 err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
1126 err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec);
1127 err |= __put_user(r.ru_maxrss, &ur->ru_maxrss);
1128 err |= __put_user(r.ru_ixrss, &ur->ru_ixrss);
1129 err |= __put_user(r.ru_idrss, &ur->ru_idrss);
1130 err |= __put_user(r.ru_isrss, &ur->ru_isrss);
1131 err |= __put_user(r.ru_minflt, &ur->ru_minflt);
1132 err |= __put_user(r.ru_majflt, &ur->ru_majflt);
1133 err |= __put_user(r.ru_nswap, &ur->ru_nswap);
1134 err |= __put_user(r.ru_inblock, &ur->ru_inblock);
1135 err |= __put_user(r.ru_oublock, &ur->ru_oublock);
1136 err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd);
1137 err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv);
1138 err |= __put_user(r.ru_nsignals, &ur->ru_nsignals);
1139 err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw);
1140 err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw);
1142 return err ? err : ret;
1146 * I don't know what the parameters are: the first one
1147 * seems to be a timeval pointer, and I suspect the second
1148 * one is the time remaining.. Ho humm.. No documentation.
1151 osf_usleep_thread(struct timeval32 __user *sleep, struct timeval32 __user *remain)
1154 unsigned long ticks;
1156 if (get_tv32(&tmp, sleep))
1159 ticks = timeval_to_jiffies(&tmp);
1161 ticks = schedule_timeout_interruptible(ticks);
1164 jiffies_to_timeval(ticks, &tmp);
1165 if (put_tv32(remain, &tmp))
1176 unsigned int modes; /* mode selector */
1177 long offset; /* time offset (usec) */
1178 long freq; /* frequency offset (scaled ppm) */
1179 long maxerror; /* maximum error (usec) */
1180 long esterror; /* estimated error (usec) */
1181 int status; /* clock command/status */
1182 long constant; /* pll time constant */
1183 long precision; /* clock precision (usec) (read only) */
1184 long tolerance; /* clock frequency tolerance (ppm)
1187 struct timeval32 time; /* (read only) */
1188 long tick; /* (modified) usecs between clock ticks */
1190 long ppsfreq; /* pps frequency (scaled ppm) (ro) */
1191 long jitter; /* pps jitter (us) (ro) */
1192 int shift; /* interval duration (s) (shift) (ro) */
1193 long stabil; /* pps stability (scaled ppm) (ro) */
1194 long jitcnt; /* jitter limit exceeded (ro) */
1195 long calcnt; /* calibration intervals (ro) */
1196 long errcnt; /* calibration errors (ro) */
1197 long stbcnt; /* stability limit exceeded (ro) */
1199 int :32; int :32; int :32; int :32;
1200 int :32; int :32; int :32; int :32;
1201 int :32; int :32; int :32; int :32;
1205 sys_old_adjtimex(struct timex32 __user *txc_p)
1210 /* copy relevant bits of struct timex. */
1211 if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
1212 copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) -
1213 offsetof(struct timex32, time)))
1216 ret = do_adjtimex(&txc);
1220 /* copy back to timex32 */
1221 if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) ||
1222 (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) -
1223 offsetof(struct timex32, tick))) ||
1224 (put_tv32(&txc_p->time, &txc.time)))
1230 /* Get an address range which is currently unmapped. Similar to the
1231 generic version except that we know how to honor ADDR_LIMIT_32BIT. */
1233 static unsigned long
1234 arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
1235 unsigned long limit)
1237 struct vm_area_struct *vma = find_vma(current->mm, addr);
1240 /* At this point: (!vma || addr < vma->vm_end). */
1241 if (limit - len < addr)
1243 if (!vma || addr + len <= vma->vm_start)
1251 arch_get_unmapped_area(struct file *filp, unsigned long addr,
1252 unsigned long len, unsigned long pgoff,
1253 unsigned long flags)
1255 unsigned long limit;
1257 /* "32 bit" actually means 31 bit, since pointers sign extend. */
1258 if (current->personality & ADDR_LIMIT_32BIT)
1266 /* First, see if the given suggestion fits.
1268 The OSF/1 loader (/sbin/loader) relies on us returning an
1269 address larger than the requested if one exists, which is
1270 a terribly broken way to program.
1272 That said, I can see the use in being able to suggest not
1273 merely specific addresses, but regions of memory -- perhaps
1274 this feature should be incorporated into all ports? */
1277 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
1278 if (addr != (unsigned long) -ENOMEM)
1282 /* Next, try allocating at TASK_UNMAPPED_BASE. */
1283 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
1285 if (addr != (unsigned long) -ENOMEM)
1288 /* Finally, try allocating in low memory. */
1289 addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
1294 #ifdef CONFIG_OSF4_COMPAT
1296 /* Clear top 32 bits of iov_len in the user's buffer for
1297 compatibility with old versions of OSF/1 where iov_len
1298 was defined as int. */
1300 osf_fix_iov_len(const struct iovec __user *iov, unsigned long count)
1304 for (i = 0 ; i < count ; i++) {
1305 int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1;
1307 if (put_user(0, iov_len_high))
1314 osf_readv(unsigned long fd, const struct iovec __user * vector, unsigned long count)
1316 if (unlikely(personality(current->personality) == PER_OSF4))
1317 if (osf_fix_iov_len(vector, count))
1319 return sys_readv(fd, vector, count);
1323 osf_writev(unsigned long fd, const struct iovec __user * vector, unsigned long count)
1325 if (unlikely(personality(current->personality) == PER_OSF4))
1326 if (osf_fix_iov_len(vector, count))
1328 return sys_writev(fd, vector, count);