Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 784 insertions, 0 deletions

diff --git a/arch/sparc64/solaris/misc.c b/arch/sparc64/solaris/misc.c
new file mode 100644
index 0000000..15b4cfe
--- /dev/null
+++ b/arch/sparc64/solaris/misc.c
@@ -0,0 +1,784 @@
+/* $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/config.h>
+#include <linux/module.h> 
+#include <linux/types.h>
+#include <linux/smp_lock.h>
+#include <linux/utsname.h>
+#include <linux/limits.h>
+#include <linux/mm.h>
+#include <linux/smp.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 "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_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 > 0xf0000000UL || addr > 0xf0000000UL - len)
+		goto out_putf;
+	ret_type = flags & _MAP_NEW;
+	flags &= ~_MAP_NEW;
+
+	down_write(&current->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(&current->mm->mmap_sem);
+	if(!ret_type)
+		retval = ((retval < 0xf0000000) ? 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 len;
+
+	*buffer = 0;
+	len = prom_getproperty(prom_root_node, "name", buffer, 256);
+	if(len > 0)
+		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 node = prom_getchild(prom_root_node);
+	int len;
+
+	node = prom_searchsiblings(node, "options");
+	*buffer = 0;
+	len = prom_getproperty(node, "system-board-serial#", buffer, 256);
+	if(len > 0)
+		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, system_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, system_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 = system_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); break;
+	case SI_PLATFORM: r = platform(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 CHILD_MAX;
+	case SOLARIS_CONFIG_OPEN_FILES:	return OPEN_MAX;
+	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;
+			current->signal->tty = NULL;
+			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);
+
+#ifdef MODULE
+
+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");
+
+#ifdef __sparc_v9__
+extern u32 tl0_solaris[8];
+#define update_ttable(x) 										\
+	tl0_solaris[3] = (((long)(x) - (long)tl0_solaris - 3) >> 2) | 0x40000000;			\
+	__asm__ __volatile__ ("membar #StoreStore; flush %0" : : "r" (&tl0_solaris[3]))
+#else
+#endif	
+
+extern u32 solaris_sparc_syscall[];
+extern u32 solaris_syscall[];
+extern void cleanup_socksys(void);
+
+extern u32 entry64_personality_patch;
+
+int init_module(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));
+	__asm__ __volatile__("membar #StoreStore; flush %0"
+			     : : "r" (&entry64_personality_patch));
+	return 0;
+}
+
+void cleanup_module(void)
+{
+	update_ttable(solaris_syscall);
+	cleanup_socksys();
+	unregister_exec_domain(&solaris_exec_domain);
+}
+
+#else
+int init_solaris_emul(void)
+{
+	register_exec_domain(&solaris_exec_domain);
+	init_socksys();
+	return 0;
+}
+#endif
+