/* $Id: misc.c,v 1.36 2002/02/09 19:49:31 davem Exp $
* misc.c: Miscellaneous syscall emulation for Solaris
*
* Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/utsname.h>
#include <linux/limits.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/tty.h>
#include <linux/mman.h>
#include <linux/file.h>
#include <linux/timex.h>
#include <linux/major.h>
#include <linux/compat.h>
#include <asm/uaccess.h>
#include <asm/string.h>
#include <asm/oplib.h>
#include <asm/idprom.h>
#include <asm/smp.h>
#include <asm/prom.h>
#include "conv.h"
/* Conversion from Linux to Solaris errnos. 0-34 are identity mapped.
Some Linux errnos (EPROCLIM, EDOTDOT, ERREMOTE, EUCLEAN, ENOTNAM,
ENAVAIL, EISNAM, EREMOTEIO, ENOMEDIUM, EMEDIUMTYPE) have no Solaris
equivalents. I return EINVAL in that case, which is very wrong. If
someone suggest a better value for them, you're welcomed.
On the other side, Solaris ECANCELED and ENOTSUP have no Linux equivalents,
but that doesn't matter here. --jj */
int solaris_err_table[] = {
/* 0 */ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
/* 10 */ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
/* 20 */ 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
/* 30 */ 30, 31, 32, 33, 34, 22, 150, 149, 95, 96,
/* 40 */ 97, 98, 99, 120, 121, 122, 123, 124, 125, 126,
/* 50 */ 127, 128, 129, 130, 131, 132, 133, 134, 143, 144,
/* 60 */ 145, 146, 90, 78, 147, 148, 93, 22, 94, 49,
/* 70 */ 151, 66, 60, 62, 63, 35, 77, 36, 45, 46,
/* 80 */ 64, 22, 67, 68, 69, 70, 71, 74, 22, 82,
/* 90 */ 89, 92, 79, 81, 37, 38, 39, 40, 41, 42,
/* 100 */ 43, 44, 50, 51, 52, 53, 54, 55, 56, 57,
/* 110 */ 87, 61, 84, 65, 83, 80, 91, 22, 22, 22,
/* 120 */ 22, 22, 88, 86, 85, 22, 22,
};
#define SOLARIS_NR_OPEN 256
static u32 do_solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u64 off)
{
struct file *file = NULL;
unsigned long retval, ret_type;
/* Do we need it here? */
set_personality(PER_SVR4);
if (flags & MAP_NORESERVE) {
static int cnt;
if (cnt < 5) {
printk("%s: unimplemented Solaris MAP_NORESERVE mmap() flag\n",
current->comm);
cnt++;
}
flags &= ~MAP_NORESERVE;
}
retval = -EBADF;
if(!(flags & MAP_ANONYMOUS)) {
if(fd >= SOLARIS_NR_OPEN)
goto out;
file = fget(fd);
if (!file)
goto out;
else {
struct inode * inode = file->f_path.dentry->d_inode;
if(imajor(inode) == MEM_MAJOR &&
iminor(inode) == 5) {
flags |= MAP_ANONYMOUS;
fput(file);
file = NULL;
}
}
}
retval = -EINVAL;
len = PAGE_ALIGN(len);
if(!(flags & MAP_FIXED))
addr = 0;
else if (len > STACK_TOP32 || addr > STACK_TOP32 - len)
goto out_putf;
ret_type = flags & _MAP_NEW;
flags &= ~_MAP_NEW;
down_write(¤t->mm->mmap_sem);
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
retval = do_mmap(file,
(unsigned long) addr, (unsigned long) len,
(unsigned long) prot, (unsigned long) flags, off);
up_write(¤t->mm->mmap_sem);
if(!ret_type)
retval = ((retval < STACK_TOP32) ? 0 : retval);
out_putf:
if (file)
fput(file);
out:
return (u32) retval;
}
asmlinkage u32 solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 off)
{
return do_solaris_mmap(addr, len, prot, flags, fd, (u64) off);
}
asmlinkage u32 solaris_mmap64(struct pt_regs *regs, u32 len, u32 prot, u32 flags, u32 fd, u32 offhi)
{
u32 offlo;
if (regs->u_regs[UREG_G1]) {
if (get_user (offlo, (u32 __user *)(long)((u32)regs->u_regs[UREG_I6] + 0x5c)))
return -EFAULT;
} else {
if (get_user (offlo, (u32 __user *)(long)((u32)regs->u_regs[UREG_I6] + 0x60)))
return -EFAULT;
}
return do_solaris_mmap((u32)regs->u_regs[UREG_I0], len, prot, flags, fd, (((u64)offhi)<<32)|offlo);
}
asmlinkage int solaris_brk(u32 brk)
{
int (*sunos_brk)(u32) = (int (*)(u32))SUNOS(17);
return sunos_brk(brk);
}
static int __set_utsfield(char __user *to, int to_size,
const char *from, int from_size,
int dotchop, int countfrom)
{
int len = countfrom ? (to_size > from_size ?
from_size : to_size) : to_size;
int off;
if (copy_to_user(to, from, len))
return -EFAULT;
off = len < to_size? len: len - 1;
if (dotchop) {
const char *p = strnchr(from, len, '.');
if (p) off = p - from;
}
if (__put_user('\0', to + off))
return -EFAULT;
return 0;
}
#define set_utsfield(to, from, dotchop, countfrom) \
__set_utsfield((to), sizeof(to), \
(from), sizeof(from), \
(dotchop), (countfrom))
struct sol_uname {
char sysname[9];
char nodename[9];
char release[9];
char version[9];
char machine[9];
};
struct sol_utsname {
char sysname[257];
char nodename[257];
char release[257];
char version[257];
char machine[257];
};
static char *machine(void)
{
switch (sparc_cpu_model) {
case sun4: return "sun4";
case sun4c: return "sun4c";
case sun4e: return "sun4e";
case sun4m: return "sun4m";
case sun4d: return "sun4d";
case sun4u: return "sun4u";
default: return "sparc";
}
}
static char *platform(char *buffer, int sz)
{
struct device_node *dp = of_find_node_by_path("/");
int len;
*buffer = 0;
len = strlen(dp->name);
if (len > sz)
len = sz;
memcpy(buffer, dp->name, len);
buffer[len] = 0;
if (*buffer) {
char *p;
for (p = buffer; *p; p++)
if (*p == '/' || *p == ' ') *p = '_';
return buffer;
}
return "sun4u";
}
static char *serial(char *buffer, int sz)
{
struct device_node *dp = of_find_node_by_path("/options");
int len;
*buffer = 0;
if (dp) {
const char *val =
of_get_property(dp, "system-board-serial#", &len);
if (val && len > 0) {
if (len > sz)
len = sz;
memcpy(buffer, val, len);
buffer[len] = 0;
}
}
if (!*buffer)
return "4512348717234";
else
return buffer;
}
asmlinkage int solaris_utssys(u32 buf, u32 flags, int which, u32 buf2)
{
struct sol_uname __user *v = A(buf);
int err;
switch (which) {
case 0: /* old uname */
/* Let's cheat */
err = set_utsfield(v->sysname, "SunOS", 1, 0);
down_read(&uts_sem);
err |= set_utsfield(v->nodename, utsname()->nodename,
1, 1);
up_read(&uts_sem);
err |= set_utsfield(v->release, "2.6", 0, 0);
err |= set_utsfield(v->version, "Generic", 0, 0);
err |= set_utsfield(v->machine, machine(), 0, 0);
return (err ? -EFAULT : 0);
case 2: /* ustat */
return -ENOSYS;
case 3: /* fusers */
return -ENOSYS;
default:
return -ENOSYS;
}
}
asmlinkage int solaris_utsname(u32 buf)
{
struct sol_utsname __user *v = A(buf);
int err;
/* Why should we not lie a bit? */
down_read(&uts_sem);
err = set_utsfield(v->sysname, "SunOS", 0, 0);
err |= set_utsfield(v->nodename, utsname()->nodename, 1, 1);
err |= set_utsfield(v->release, "5.6", 0, 0);
err |= set_utsfield(v->version, "Generic", 0, 0);
err |= set_utsfield(v->machine, machine(), 0, 0);
up_read(&uts_sem);
return (err ? -EFAULT : 0);
}
#define SI_SYSNAME 1 /* return name of operating system */
#define SI_HOSTNAME 2 /* return name of node */
#define SI_RELEASE 3 /* return release of operating system */
#define SI_VERSION 4 /* return version field of utsname */
#define SI_MACHINE 5 /* return kind of machine */
#define SI_ARCHITECTURE 6 /* return instruction set arch */
#define SI_HW_SERIAL 7 /* return hardware serial number */
#define SI_HW_PROVIDER 8 /* return hardware manufacturer */
#define SI_SRPC_DOMAIN 9 /* return secure RPC domain */
#define SI_PLATFORM 513 /* return platform identifier */
asmlinkage int solaris_sysinfo(int cmd, u32 buf, s32 count)
{
char *p, *q, *r;
char buffer[256];
int len;
/* Again, we cheat :)) */
switch (cmd) {
case SI_SYSNAME: r = "SunOS"; break;
case SI_HOSTNAME:
r = buffer + 256;
down_read(&uts_sem);
for (p = utsname()->nodename, q = buffer;
q < r && *p && *p != '.'; *q++ = *p++);
up_read(&uts_sem);
*q = 0;
r = buffer;
break;
case SI_RELEASE: r = "5.6"; break;
case SI_MACHINE: r = machine(); break;
case SI_ARCHITECTURE: r = "sparc"; break;
case SI_HW_PROVIDER: r = "Sun_Microsystems"; break;
case SI_HW_SERIAL: r = serial(buffer, sizeof(buffer)); break;
case SI_PLATFORM: r = platform(buffer, sizeof(buffer)); break;
case SI_SRPC_DOMAIN: r = ""; break;
case SI_VERSION: r = "Generic"; break;
default: return -EINVAL;
}
len = strlen(r) + 1;
if (count < len) {
if (copy_to_user(A(buf), r, count - 1) ||
__put_user(0, (char __user *)A(buf) + count - 1))
return -EFAULT;
} else {
if (copy_to_user(A(buf), r, len))
return -EFAULT;
}
return len;
}
#define SOLARIS_CONFIG_NGROUPS 2
#define SOLARIS_CONFIG_CHILD_MAX 3
#define SOLARIS_CONFIG_OPEN_FILES 4
#define SOLARIS_CONFIG_POSIX_VER 5
#define SOLARIS_CONFIG_PAGESIZE 6
#define SOLARIS_CONFIG_CLK_TCK 7
#define SOLARIS_CONFIG_XOPEN_VER 8
#define SOLARIS_CONFIG_PROF_TCK 10
#define SOLARIS_CONFIG_NPROC_CONF 11
#define SOLARIS_CONFIG_NPROC_ONLN 12
#define SOLARIS_CONFIG_AIO_LISTIO_MAX 13
#define SOLARIS_CONFIG_AIO_MAX 14
#define SOLARIS_CONFIG_AIO_PRIO_DELTA_MAX 15
#define SOLARIS_CONFIG_DELAYTIMER_MAX 16
#define SOLARIS_CONFIG_MQ_OPEN_MAX 17
#define SOLARIS_CONFIG_MQ_PRIO_MAX 18
#define SOLARIS_CONFIG_RTSIG_MAX 19
#define SOLARIS_CONFIG_SEM_NSEMS_MAX 20
#define SOLARIS_CONFIG_SEM_VALUE_MAX 21
#define SOLARIS_CONFIG_SIGQUEUE_MAX 22
#define SOLARIS_CONFIG_SIGRT_MIN 23
#define SOLARIS_CONFIG_SIGRT_MAX 24
#define SOLARIS_CONFIG_TIMER_MAX 25
#define SOLARIS_CONFIG_PHYS_PAGES 26
#define SOLARIS_CONFIG_AVPHYS_PAGES 27
asmlinkage int solaris_sysconf(int id)
{
switch (id) {
case SOLARIS_CONFIG_NGROUPS: return NGROUPS_MAX;
case SOLARIS_CONFIG_CHILD_MAX:
return current->signal->rlim[RLIMIT_NPROC].rlim_cur;
case SOLARIS_CONFIG_OPEN_FILES:
return current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
case SOLARIS_CONFIG_POSIX_VER: return 199309;
case SOLARIS_CONFIG_PAGESIZE: return PAGE_SIZE;
case SOLARIS_CONFIG_XOPEN_VER: return 3;
case SOLARIS_CONFIG_CLK_TCK:
case SOLARIS_CONFIG_PROF_TCK:
return sparc64_get_clock_tick(smp_processor_id());
#ifdef CONFIG_SMP
case SOLARIS_CONFIG_NPROC_CONF: return NR_CPUS;
case SOLARIS_CONFIG_NPROC_ONLN: return num_online_cpus();
#else
case SOLARIS_CONFIG_NPROC_CONF: return 1;
case SOLARIS_CONFIG_NPROC_ONLN: return 1;
#endif
case SOLARIS_CONFIG_SIGRT_MIN: return 37;
case SOLARIS_CONFIG_SIGRT_MAX: return 44;
case SOLARIS_CONFIG_PHYS_PAGES:
case SOLARIS_CONFIG_AVPHYS_PAGES:
{
struct sysinfo s;
si_meminfo(&s);
if (id == SOLARIS_CONFIG_PHYS_PAGES)
return s.totalram >>= PAGE_SHIFT;
else
return s.freeram >>= PAGE_SHIFT;
}
/* XXX support these as well -jj */
case SOLARIS_CONFIG_AIO_LISTIO_MAX: return -EINVAL;
case SOLARIS_CONFIG_AIO_MAX: return -EINVAL;
case SOLARIS_CONFIG_AIO_PRIO_DELTA_MAX: return -EINVAL;
case SOLARIS_CONFIG_DELAYTIMER_MAX: return -EINVAL;
case SOLARIS_CONFIG_MQ_OPEN_MAX: return -EINVAL;
case SOLARIS_CONFIG_MQ_PRIO_MAX: return -EINVAL;
case SOLARIS_CONFIG_RTSIG_MAX: return -EINVAL;
case SOLARIS_CONFIG_SEM_NSEMS_MAX: return -EINVAL;
case SOLARIS_CONFIG_SEM_VALUE_MAX: return -EINVAL;
case SOLARIS_CONFIG_SIGQUEUE_MAX: return -EINVAL;
case SOLARIS_CONFIG_TIMER_MAX: return -EINVAL;
default: return -EINVAL;
}
}
asmlinkage int solaris_procids(int cmd, s32 pid, s32 pgid)
{
int ret;
switch (cmd) {
case 0: /* getpgrp */
return process_group(current);
case 1: /* setpgrp */
{
int (*sys_setpgid)(pid_t,pid_t) =
(int (*)(pid_t,pid_t))SYS(setpgid);
/* can anyone explain me the difference between
Solaris setpgrp and setsid? */
ret = sys_setpgid(0, 0);
if (ret) return ret;
proc_clear_tty(current);
return process_group(current);
}
case 2: /* getsid */
{
int (*sys_getsid)(pid_t) = (int (*)(pid_t))SYS(getsid);
return sys_getsid(pid);
}
case 3: /* setsid */
{
int (*sys_setsid)(void) = (int (*)(void))SYS(setsid);
return sys_setsid();
}
case 4: /* getpgid */
{
int (*sys_getpgid)(pid_t) = (int (*)(pid_t))SYS(getpgid);
return sys_getpgid(pid);
}
case 5: /* setpgid */
{
int (*sys_setpgid)(pid_t,pid_t) =
(int (*)(pid_t,pid_t))SYS(setpgid);
return sys_setpgid(pid,pgid);
}
}
return -EINVAL;
}
asmlinkage int solaris_gettimeofday(u32 tim)
{
int (*sys_gettimeofday)(struct timeval *, struct timezone *) =
(int (*)(struct timeval *, struct timezone *))SYS(gettimeofday);
return sys_gettimeofday((struct timeval *)(u64)tim, NULL);
}
#define RLIM_SOL_INFINITY32 0x7fffffff
#define RLIM_SOL_SAVED_MAX32 0x7ffffffe
#define RLIM_SOL_SAVED_CUR32 0x7ffffffd
#define RLIM_SOL_INFINITY ((u64)-3)
#define RLIM_SOL_SAVED_MAX ((u64)-2)
#define RLIM_SOL_SAVED_CUR ((u64)-1)
#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
#define RLIMIT_SOL_NOFILE 5
#define RLIMIT_SOL_VMEM 6
struct rlimit32 {
u32 rlim_cur;
u32 rlim_max;
};
asmlinkage int solaris_getrlimit(unsigned int resource, struct rlimit32 __user *rlim)
{
struct rlimit r;
int ret;
mm_segment_t old_fs = get_fs ();
int (*sys_getrlimit)(unsigned int, struct rlimit *) =
(int (*)(unsigned int, struct rlimit *))SYS(getrlimit);
if (resource > RLIMIT_SOL_VMEM)
return -EINVAL;
switch (resource) {
case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
default: break;
}
set_fs (KERNEL_DS);
ret = sys_getrlimit(resource, &r);
set_fs (old_fs);
if (!ret) {
if (r.rlim_cur == RLIM_INFINITY)
r.rlim_cur = RLIM_SOL_INFINITY32;
else if ((u64)r.rlim_cur > RLIM_SOL_INFINITY32)
r.rlim_cur = RLIM_SOL_SAVED_CUR32;
if (r.rlim_max == RLIM_INFINITY)
r.rlim_max = RLIM_SOL_INFINITY32;
else if ((u64)r.rlim_max > RLIM_SOL_INFINITY32)
r.rlim_max = RLIM_SOL_SAVED_MAX32;
ret = put_user (r.rlim_cur, &rlim->rlim_cur);
ret |= __put_user (r.rlim_max, &rlim->rlim_max);
}
return ret;
}
asmlinkage int solaris_setrlimit(unsigned int resource, struct rlimit32 __user *rlim)
{
struct rlimit r, rold;
int ret;
mm_segment_t old_fs = get_fs ();
int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
(int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
int (*sys_setrlimit)(unsigned int, struct rlimit __user *) =
(int (*)(unsigned int, struct rlimit __user *))SYS(setrlimit);
if (resource > RLIMIT_SOL_VMEM)
return -EINVAL;
switch (resource) {
case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
default: break;
}
if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
__get_user (r.rlim_max, &rlim->rlim_max))
return -EFAULT;
set_fs (KERNEL_DS);
ret = sys_getrlimit(resource, &rold);
if (!ret) {
if (r.rlim_cur == RLIM_SOL_INFINITY32)
r.rlim_cur = RLIM_INFINITY;
else if (r.rlim_cur == RLIM_SOL_SAVED_CUR32)
r.rlim_cur = rold.rlim_cur;
else if (r.rlim_cur == RLIM_SOL_SAVED_MAX32)
r.rlim_cur = rold.rlim_max;
if (r.rlim_max == RLIM_SOL_INFINITY32)
r.rlim_max = RLIM_INFINITY;
else if (r.rlim_max == RLIM_SOL_SAVED_CUR32)
r.rlim_max = rold.rlim_cur;
else if (r.rlim_max == RLIM_SOL_SAVED_MAX32)
r.rlim_max = rold.rlim_max;
ret = sys_setrlimit(resource, &r);
}
set_fs (old_fs);
return ret;
}
asmlinkage int solaris_getrlimit64(unsigned int resource, struct rlimit __user *rlim)
{
struct rlimit r;
int ret;
mm_segment_t old_fs = get_fs ();
int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
(int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
if (resource > RLIMIT_SOL_VMEM)
return -EINVAL;
switch (resource) {
case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
default: break;
}
set_fs (KERNEL_DS);
ret = sys_getrlimit(resource, &r);
set_fs (old_fs);
if (!ret) {
if (r.rlim_cur == RLIM_INFINITY)
r.rlim_cur = RLIM_SOL_INFINITY;
if (r.rlim_max == RLIM_INFINITY)
r.rlim_max = RLIM_SOL_INFINITY;
ret = put_user (r.rlim_cur, &rlim->rlim_cur);
ret |= __put_user (r.rlim_max, &rlim->rlim_max);
}
return ret;
}
asmlinkage int solaris_setrlimit64(unsigned int resource, struct rlimit __user *rlim)
{
struct rlimit r, rold;
int ret;
mm_segment_t old_fs = get_fs ();
int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
(int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
int (*sys_setrlimit)(unsigned int, struct rlimit __user *) =
(int (*)(unsigned int, struct rlimit __user *))SYS(setrlimit);
if (resource > RLIMIT_SOL_VMEM)
return -EINVAL;
switch (resource) {
case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
default: break;
}
if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
__get_user (r.rlim_max, &rlim->rlim_max))
return -EFAULT;
set_fs (KERNEL_DS);
ret = sys_getrlimit(resource, &rold);
if (!ret) {
if (r.rlim_cur == RLIM_SOL_INFINITY)
r.rlim_cur = RLIM_INFINITY;
else if (r.rlim_cur == RLIM_SOL_SAVED_CUR)
r.rlim_cur = rold.rlim_cur;
else if (r.rlim_cur == RLIM_SOL_SAVED_MAX)
r.rlim_cur = rold.rlim_max;
if (r.rlim_max == RLIM_SOL_INFINITY)
r.rlim_max = RLIM_INFINITY;
else if (r.rlim_max == RLIM_SOL_SAVED_CUR)
r.rlim_max = rold.rlim_cur;
else if (r.rlim_max == RLIM_SOL_SAVED_MAX)
r.rlim_max = rold.rlim_max;
ret = sys_setrlimit(resource, &r);
}
set_fs (old_fs);
return ret;
}
struct sol_ntptimeval {
struct compat_timeval time;
s32 maxerror;
s32 esterror;
};
struct sol_timex {
u32 modes;
s32 offset;
s32 freq;
s32 maxerror;
s32 esterror;
s32 status;
s32 constant;
s32 precision;
s32 tolerance;
s32 ppsfreq;
s32 jitter;
s32 shift;
s32 stabil;
s32 jitcnt;
s32 calcnt;
s32 errcnt;
s32 stbcnt;
};
asmlinkage int solaris_ntp_gettime(struct sol_ntptimeval __user *ntp)
{
int (*sys_adjtimex)(struct timex __user *) =
(int (*)(struct timex __user *))SYS(adjtimex);
struct timex t;
int ret;
mm_segment_t old_fs = get_fs();
set_fs(KERNEL_DS);
t.modes = 0;
ret = sys_adjtimex(&t);
set_fs(old_fs);
if (ret < 0)
return ret;
ret = put_user (t.time.tv_sec, &ntp->time.tv_sec);
ret |= __put_user (t.time.tv_usec, &ntp->time.tv_usec);
ret |= __put_user (t.maxerror, &ntp->maxerror);
ret |= __put_user (t.esterror, &ntp->esterror);
return ret;
}
asmlinkage int solaris_ntp_adjtime(struct sol_timex __user *txp)
{
int (*sys_adjtimex)(struct timex __user *) =
(int (*)(struct timex __user *))SYS(adjtimex);
struct timex t;
int ret, err;
mm_segment_t old_fs = get_fs();
ret = get_user (t.modes, &txp->modes);
ret |= __get_user (t.offset, &txp->offset);
ret |= __get_user (t.freq, &txp->freq);
ret |= __get_user (t.maxerror, &txp->maxerror);
ret |= __get_user (t.esterror, &txp->esterror);
ret |= __get_user (t.status, &txp->status);
ret |= __get_user (t.constant, &txp->constant);
set_fs(KERNEL_DS);
ret = sys_adjtimex(&t);
set_fs(old_fs);
if (ret < 0)
return ret;
err = put_user (t.offset, &txp->offset);
err |= __put_user (t.freq, &txp->freq);
err |= __put_user (t.maxerror, &txp->maxerror);
err |= __put_user (t.esterror, &txp->esterror);
err |= __put_user (t.status, &txp->status);
err |= __put_user (t.constant, &txp->constant);
err |= __put_user (t.precision, &txp->precision);
err |= __put_user (t.tolerance, &txp->tolerance);
err |= __put_user (t.ppsfreq, &txp->ppsfreq);
err |= __put_user (t.jitter, &txp->jitter);
err |= __put_user (t.shift, &txp->shift);
err |= __put_user (t.stabil, &txp->stabil);
err |= __put_user (t.jitcnt, &txp->jitcnt);
err |= __put_user (t.calcnt, &txp->calcnt);
err |= __put_user (t.errcnt, &txp->errcnt);
err |= __put_user (t.stbcnt, &txp->stbcnt);
if (err)
return -EFAULT;
return ret;
}
asmlinkage int do_sol_unimplemented(struct pt_regs *regs)
{
printk ("Unimplemented Solaris syscall %d %08x %08x %08x %08x\n",
(int)regs->u_regs[UREG_G1],
(int)regs->u_regs[UREG_I0],
(int)regs->u_regs[UREG_I1],
(int)regs->u_regs[UREG_I2],
(int)regs->u_regs[UREG_I3]);
return -ENOSYS;
}
asmlinkage void solaris_register(void)
{
set_personality(PER_SVR4);
}
extern long solaris_to_linux_signals[], linux_to_solaris_signals[];
struct exec_domain solaris_exec_domain = {
.name = "Solaris",
.handler = NULL,
.pers_low = 1, /* PER_SVR4 personality */
.pers_high = 1,
.signal_map = solaris_to_linux_signals,
.signal_invmap =linux_to_solaris_signals,
.module = THIS_MODULE,
.next = NULL
};
extern int init_socksys(void);
MODULE_AUTHOR("Jakub Jelinek (jj@ultra.linux.cz), Patrik Rak (prak3264@ss1000.ms.mff.cuni.cz)");
MODULE_DESCRIPTION("Solaris binary emulation module");
MODULE_LICENSE("GPL");
extern u32 tl0_solaris[8];
#define update_ttable(x) \
tl0_solaris[3] = (((long)(x) - (long)tl0_solaris - 3) >> 2) | 0x40000000; \
wmb(); \
__asm__ __volatile__ ("flush %0" : : "r" (&tl0_solaris[3]))
extern u32 solaris_sparc_syscall[];
extern u32 solaris_syscall[];
extern void cleanup_socksys(void);
extern u32 entry64_personality_patch;
static int __init solaris_init(void)
{
int ret;
SOLDD(("Solaris module at %p\n", solaris_sparc_syscall));
register_exec_domain(&solaris_exec_domain);
if ((ret = init_socksys())) {
unregister_exec_domain(&solaris_exec_domain);
return ret;
}
update_ttable(solaris_sparc_syscall);
entry64_personality_patch |=
(offsetof(struct task_struct, personality) +
(sizeof(unsigned long) - 1));
wmb();
__asm__ __volatile__("flush %0"
: : "r" (&entry64_personality_patch));
return 0;
}
static void __exit solaris_exit(void)
{
update_ttable(solaris_syscall);
cleanup_socksys();
unregister_exec_domain(&solaris_exec_domain);
}
module_init(solaris_init);
module_exit(solaris_exit);
