Linux-2.6.12-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, 1343 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/sys_sunos32.c b/arch/sparc64/kernel/sys_sunos32.c
new file mode 100644
index 0000000..d0592ed
--- /dev/null
+++ b/arch/sparc64/kernel/sys_sunos32.c
@@ -0,0 +1,1343 @@
+/* $Id: sys_sunos32.c,v 1.64 2002/02/09 19:49:31 davem Exp $
+ * sys_sunos32.c: SunOS binary compatibility layer on sparc64.
+ *
+ * Copyright (C) 1995, 1996, 1997 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
+ *
+ * Based upon preliminary work which is:
+ *
+ * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/compat.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/resource.h>
+#include <linux/ipc.h>
+#include <linux/shm.h>
+#include <linux/msg.h>
+#include <linux/sem.h>
+#include <linux/signal.h>
+#include <linux/uio.h>
+#include <linux/utsname.h>
+#include <linux/major.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/errno.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/syscalls.h>
+
+#include <asm/uaccess.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/pconf.h>
+#include <asm/idprom.h> /* for gethostid() */
+#include <asm/unistd.h>
+#include <asm/system.h>
+
+/* For the nfs mount emulation */
+#include <linux/socket.h>
+#include <linux/in.h>
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs_mount.h>
+
+/* for sunos_select */
+#include <linux/time.h>
+#include <linux/personality.h>
+
+/* For SOCKET_I */
+#include <linux/socket.h>
+#include <net/sock.h>
+#include <net/compat.h>
+
+#define SUNOS_NR_OPEN	256
+
+asmlinkage u32 sunos_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 off)
+{
+	struct file *file = NULL;
+	unsigned long retval, ret_type;
+
+	if (flags & MAP_NORESERVE) {
+		static int cnt;
+		if (cnt++ < 10)
+			printk("%s:  unimplemented SunOS MAP_NORESERVE mmap() flag\n",
+			       current->comm);
+		flags &= ~MAP_NORESERVE;
+	}
+	retval = -EBADF;
+	if (!(flags & MAP_ANONYMOUS)) {
+		struct inode * inode;
+		if (fd >= SUNOS_NR_OPEN)
+			goto out;
+ 		file = fget(fd);
+		if (!file)
+			goto out;
+		inode = file->f_dentry->d_inode;
+		if (imajor(inode) == MEM_MAJOR && iminor(inode) == 5) {
+			flags |= MAP_ANONYMOUS;
+			fput(file);
+			file = NULL;
+		}
+	}
+
+	retval = -EINVAL;
+	if (!(flags & MAP_FIXED))
+		addr = 0;
+	else if (len > 0xf0000000 || addr > 0xf0000000 - len)
+		goto out_putf;
+	ret_type = flags & _MAP_NEW;
+	flags &= ~_MAP_NEW;
+
+	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+	down_write(&current->mm->mmap_sem);
+	retval = do_mmap(file,
+			 (unsigned long) addr, (unsigned long) len,
+			 (unsigned long) prot, (unsigned long) flags,
+			 (unsigned long) 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 int sunos_mctl(u32 addr, u32 len, int function, u32 arg)
+{
+	return 0;
+}
+
+asmlinkage int sunos_brk(u32 baddr)
+{
+	int freepages, retval = -ENOMEM;
+	unsigned long rlim;
+	unsigned long newbrk, oldbrk, brk = (unsigned long) baddr;
+
+	down_write(&current->mm->mmap_sem);
+	if (brk < current->mm->end_code)
+		goto out;
+	newbrk = PAGE_ALIGN(brk);
+	oldbrk = PAGE_ALIGN(current->mm->brk);
+	retval = 0;
+	if (oldbrk == newbrk) {
+		current->mm->brk = brk;
+		goto out;
+	}
+	/* Always allow shrinking brk. */
+	if (brk <= current->mm->brk) {
+		current->mm->brk = brk;
+		do_munmap(current->mm, newbrk, oldbrk-newbrk);
+		goto out;
+	}
+	/* Check against rlimit and stack.. */
+	retval = -ENOMEM;
+	rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
+	if (rlim >= RLIM_INFINITY)
+		rlim = ~0;
+	if (brk - current->mm->end_code > rlim)
+		goto out;
+	/* Check against existing mmap mappings. */
+	if (find_vma_intersection(current->mm, oldbrk, newbrk+PAGE_SIZE))
+		goto out;
+	/* stupid algorithm to decide if we have enough memory: while
+	 * simple, it hopefully works in most obvious cases.. Easy to
+	 * fool it, but this should catch most mistakes.
+	 */
+	freepages = get_page_cache_size();
+	freepages >>= 1;
+	freepages += nr_free_pages();
+	freepages += nr_swap_pages;
+	freepages -= num_physpages >> 4;
+	freepages -= (newbrk-oldbrk) >> PAGE_SHIFT;
+	if (freepages < 0)
+		goto out;
+	/* Ok, we have probably got enough memory - let it rip. */
+	current->mm->brk = brk;
+	do_brk(oldbrk, newbrk-oldbrk);
+	retval = 0;
+out:
+	up_write(&current->mm->mmap_sem);
+	return retval;
+}
+
+asmlinkage u32 sunos_sbrk(int increment)
+{
+	int error, oldbrk;
+
+	/* This should do it hopefully... */
+	oldbrk = (int)current->mm->brk;
+	error = sunos_brk(((int) current->mm->brk) + increment);
+	if (!error)
+		error = oldbrk;
+	return error;
+}
+
+asmlinkage u32 sunos_sstk(int increment)
+{
+	printk("%s: Call to sunos_sstk(increment<%d>) is unsupported\n",
+	       current->comm, increment);
+
+	return (u32)-1;
+}
+
+/* Give hints to the kernel as to what paging strategy to use...
+ * Completely bogus, don't remind me.
+ */
+#define VA_NORMAL     0 /* Normal vm usage expected */
+#define VA_ABNORMAL   1 /* Abnormal/random vm usage probable */
+#define VA_SEQUENTIAL 2 /* Accesses will be of a sequential nature */
+#define VA_INVALIDATE 3 /* Page table entries should be flushed ??? */
+static char *vstrings[] = {
+	"VA_NORMAL",
+	"VA_ABNORMAL",
+	"VA_SEQUENTIAL",
+	"VA_INVALIDATE",
+};
+
+asmlinkage void sunos_vadvise(u32 strategy)
+{
+	static int count;
+
+	/* I wanna see who uses this... */
+	if (count++ < 5)
+		printk("%s: Advises us to use %s paging strategy\n",
+		       current->comm,
+		       strategy <= 3 ? vstrings[strategy] : "BOGUS");
+}
+
+/* This just wants the soft limit (ie. rlim_cur element) of the RLIMIT_NOFILE
+ * resource limit and is for backwards compatibility with older sunos
+ * revs.
+ */
+asmlinkage int sunos_getdtablesize(void)
+{
+	return SUNOS_NR_OPEN;
+}
+
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+asmlinkage u32 sunos_sigblock(u32 blk_mask)
+{
+	u32 old;
+
+	spin_lock_irq(&current->sighand->siglock);
+	old = (u32) current->blocked.sig[0];
+	current->blocked.sig[0] |= (blk_mask & _BLOCKABLE);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+	return old;
+}
+
+asmlinkage u32 sunos_sigsetmask(u32 newmask)
+{
+	u32 retval;
+
+	spin_lock_irq(&current->sighand->siglock);
+	retval = (u32) current->blocked.sig[0];
+	current->blocked.sig[0] = (newmask & _BLOCKABLE);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+	return retval;
+}
+
+/* SunOS getdents is very similar to the newer Linux (iBCS2 compliant)    */
+/* getdents system call, the format of the structure just has a different */
+/* layout (d_off+d_ino instead of d_ino+d_off) */
+struct sunos_dirent {
+    s32		d_off;
+    u32		d_ino;
+    u16		d_reclen;
+    u16		d_namlen;
+    char	d_name[1];
+};
+
+struct sunos_dirent_callback {
+    struct sunos_dirent __user *curr;
+    struct sunos_dirent __user *previous;
+    int count;
+    int error;
+};
+
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
+#define ROUND_UP(x) (((x)+sizeof(s32)-1) & ~(sizeof(s32)-1))
+
+static int sunos_filldir(void * __buf, const char * name, int namlen,
+			 loff_t offset, ino_t ino, unsigned int d_type)
+{
+	struct sunos_dirent __user *dirent;
+	struct sunos_dirent_callback * buf = (struct sunos_dirent_callback *) __buf;
+	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+
+	buf->error = -EINVAL;	/* only used if we fail.. */
+	if (reclen > buf->count)
+		return -EINVAL;
+	dirent = buf->previous;
+	if (dirent)
+		put_user(offset, &dirent->d_off);
+	dirent = buf->curr;
+	buf->previous = dirent;
+	put_user(ino, &dirent->d_ino);
+	put_user(namlen, &dirent->d_namlen);
+	put_user(reclen, &dirent->d_reclen);
+	if (copy_to_user(dirent->d_name, name, namlen))
+		return -EFAULT;
+	put_user(0, dirent->d_name + namlen);
+	dirent = (void __user *) dirent + reclen;
+	buf->curr = dirent;
+	buf->count -= reclen;
+	return 0;
+}
+
+asmlinkage int sunos_getdents(unsigned int fd, void __user *dirent, int cnt)
+{
+	struct file * file;
+	struct sunos_dirent __user *lastdirent;
+	struct sunos_dirent_callback buf;
+	int error = -EBADF;
+
+	if (fd >= SUNOS_NR_OPEN)
+		goto out;
+
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	error = -EINVAL;
+	if (cnt < (sizeof(struct sunos_dirent) + 255))
+		goto out_putf;
+
+	buf.curr = (struct sunos_dirent __user *) dirent;
+	buf.previous = NULL;
+	buf.count = cnt;
+	buf.error = 0;
+
+	error = vfs_readdir(file, sunos_filldir, &buf);
+	if (error < 0)
+		goto out_putf;
+
+	lastdirent = buf.previous;
+	error = buf.error;
+	if (lastdirent) {
+		put_user(file->f_pos, &lastdirent->d_off);
+		error = cnt - buf.count;
+	}
+
+out_putf:
+	fput(file);
+out:
+	return error;
+}
+
+/* Old sunos getdirentries, severely broken compatibility stuff here. */
+struct sunos_direntry {
+    u32		d_ino;
+    u16		d_reclen;
+    u16		d_namlen;
+    char	d_name[1];
+};
+
+struct sunos_direntry_callback {
+    struct sunos_direntry __user *curr;
+    struct sunos_direntry __user *previous;
+    int count;
+    int error;
+};
+
+static int sunos_filldirentry(void * __buf, const char * name, int namlen,
+			      loff_t offset, ino_t ino, unsigned int d_type)
+{
+	struct sunos_direntry __user *dirent;
+	struct sunos_direntry_callback * buf =
+		(struct sunos_direntry_callback *) __buf;
+	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+
+	buf->error = -EINVAL;	/* only used if we fail.. */
+	if (reclen > buf->count)
+		return -EINVAL;
+	dirent = buf->previous;
+	dirent = buf->curr;
+	buf->previous = dirent;
+	put_user(ino, &dirent->d_ino);
+	put_user(namlen, &dirent->d_namlen);
+	put_user(reclen, &dirent->d_reclen);
+	if (copy_to_user(dirent->d_name, name, namlen))
+		return -EFAULT;
+	put_user(0, dirent->d_name + namlen);
+	dirent = (void __user *) dirent + reclen;
+	buf->curr = dirent;
+	buf->count -= reclen;
+	return 0;
+}
+
+asmlinkage int sunos_getdirentries(unsigned int fd,
+				   void __user *dirent,
+				   int cnt,
+				   unsigned int __user *basep)
+{
+	struct file * file;
+	struct sunos_direntry __user *lastdirent;
+	int error = -EBADF;
+	struct sunos_direntry_callback buf;
+
+	if (fd >= SUNOS_NR_OPEN)
+		goto out;
+
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	error = -EINVAL;
+	if (cnt < (sizeof(struct sunos_direntry) + 255))
+		goto out_putf;
+
+	buf.curr = (struct sunos_direntry __user *) dirent;
+	buf.previous = NULL;
+	buf.count = cnt;
+	buf.error = 0;
+
+	error = vfs_readdir(file, sunos_filldirentry, &buf);
+	if (error < 0)
+		goto out_putf;
+
+	lastdirent = buf.previous;
+	error = buf.error;
+	if (lastdirent) {
+		put_user(file->f_pos, basep);
+		error = cnt - buf.count;
+	}
+
+out_putf:
+	fput(file);
+out:
+	return error;
+}
+
+struct sunos_utsname {
+	char sname[9];
+	char nname[9];
+	char nnext[56];
+	char rel[9];
+	char ver[9];
+	char mach[9];
+};
+
+asmlinkage int sunos_uname(struct sunos_utsname __user *name)
+{
+	int ret;
+
+	down_read(&uts_sem);
+	ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0],
+			   sizeof(name->sname) - 1);
+	ret |= copy_to_user(&name->nname[0], &system_utsname.nodename[0],
+			    sizeof(name->nname) - 1);
+	ret |= put_user('\0', &name->nname[8]);
+	ret |= copy_to_user(&name->rel[0], &system_utsname.release[0],
+			    sizeof(name->rel) - 1);
+	ret |= copy_to_user(&name->ver[0], &system_utsname.version[0],
+			    sizeof(name->ver) - 1);
+	ret |= copy_to_user(&name->mach[0], &system_utsname.machine[0],
+			    sizeof(name->mach) - 1);
+	up_read(&uts_sem);
+	return (ret ? -EFAULT : 0);
+}
+
+asmlinkage int sunos_nosys(void)
+{
+	struct pt_regs *regs;
+	siginfo_t info;
+	static int cnt;
+
+	regs = current_thread_info()->kregs;
+	if (test_thread_flag(TIF_32BIT)) {
+		regs->tpc &= 0xffffffff;
+		regs->tnpc &= 0xffffffff;
+	}
+	info.si_signo = SIGSYS;
+	info.si_errno = 0;
+	info.si_code = __SI_FAULT|0x100;
+	info.si_addr = (void __user *)regs->tpc;
+	info.si_trapno = regs->u_regs[UREG_G1];
+	send_sig_info(SIGSYS, &info, current);
+	if (cnt++ < 4) {
+		printk("Process makes ni_syscall number %d, register dump:\n",
+		       (int) regs->u_regs[UREG_G1]);
+		show_regs(regs);
+	}
+	return -ENOSYS;
+}
+
+/* This is not a real and complete implementation yet, just to keep
+ * the easy SunOS binaries happy.
+ */
+asmlinkage int sunos_fpathconf(int fd, int name)
+{
+	int ret;
+
+	switch(name) {
+	case _PCONF_LINK:
+		ret = LINK_MAX;
+		break;
+	case _PCONF_CANON:
+		ret = MAX_CANON;
+		break;
+	case _PCONF_INPUT:
+		ret = MAX_INPUT;
+		break;
+	case _PCONF_NAME:
+		ret = NAME_MAX;
+		break;
+	case _PCONF_PATH:
+		ret = PATH_MAX;
+		break;
+	case _PCONF_PIPE:
+		ret = PIPE_BUF;
+		break;
+	case _PCONF_CHRESTRICT:		/* XXX Investigate XXX */
+		ret = 1;
+		break;
+	case _PCONF_NOTRUNC:		/* XXX Investigate XXX */
+	case _PCONF_VDISABLE:
+		ret = 0;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	return ret;
+}
+
+asmlinkage int sunos_pathconf(u32 u_path, int name)
+{
+	int ret;
+
+	ret = sunos_fpathconf(0, name); /* XXX cheese XXX */
+	return ret;
+}
+
+asmlinkage int sunos_select(int width, u32 inp, u32 outp, u32 exp, u32 tvp_x)
+{
+	int ret;
+
+	/* SunOS binaries expect that select won't change the tvp contents */
+	ret = compat_sys_select(width, compat_ptr(inp), compat_ptr(outp),
+				compat_ptr(exp), compat_ptr(tvp_x));
+	if (ret == -EINTR && tvp_x) {
+		struct compat_timeval __user *tvp = compat_ptr(tvp_x);
+		time_t sec, usec;
+
+		__get_user(sec, &tvp->tv_sec);
+		__get_user(usec, &tvp->tv_usec);
+		if (sec == 0 && usec == 0)
+			ret = 0;
+	}
+	return ret;
+}
+
+asmlinkage void sunos_nop(void)
+{
+	return;
+}
+
+#if 0 /* This code doesn't translate user pointers correctly,
+       * disable for now. -DaveM
+       */
+
+/* XXXXXXXXXX SunOS mount/umount. XXXXXXXXXXX */
+#define SMNT_RDONLY       1
+#define SMNT_NOSUID       2
+#define SMNT_NEWTYPE      4
+#define SMNT_GRPID        8
+#define SMNT_REMOUNT      16
+#define SMNT_NOSUB        32
+#define SMNT_MULTI        64
+#define SMNT_SYS5         128
+
+struct sunos_fh_t {
+	char fh_data [NFS_FHSIZE];
+};
+
+struct sunos_nfs_mount_args {
+	struct sockaddr_in  *addr; /* file server address */
+	struct nfs_fh *fh;     /* File handle to be mounted */
+	int        flags;      /* flags */
+	int        wsize;      /* write size in bytes */
+	int        rsize;      /* read size in bytes */
+	int        timeo;      /* initial timeout in .1 secs */
+	int        retrans;    /* times to retry send */
+	char       *hostname;  /* server's hostname */
+	int        acregmin;   /* attr cache file min secs */
+	int        acregmax;   /* attr cache file max secs */
+	int        acdirmin;   /* attr cache dir min secs */
+	int        acdirmax;   /* attr cache dir max secs */
+	char       *netname;   /* server's netname */
+};
+
+
+/* Bind the socket on a local reserved port and connect it to the
+ * remote server.  This on Linux/i386 is done by the mount program,
+ * not by the kernel. 
+ */
+/* XXXXXXXXXXXXXXXXXXXX */
+static int
+sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr)
+{
+	struct sockaddr_in local;
+	struct sockaddr_in server;
+	int    try_port;
+	int    ret;
+	struct socket *socket;
+	struct inode  *inode;
+	struct file   *file;
+
+	file = fget(fd);
+	if (!file)
+		return 0;
+
+	inode = file->f_dentry->d_inode;
+
+	socket = SOCKET_I(inode);
+	local.sin_family = AF_INET;
+	local.sin_addr.s_addr = INADDR_ANY;
+
+	/* IPPORT_RESERVED = 1024, can't find the definition in the kernel */
+	try_port = 1024;
+	do {
+		local.sin_port = htons (--try_port);
+		ret = socket->ops->bind(socket, (struct sockaddr*)&local,
+					sizeof(local));
+	} while (ret && try_port > (1024 / 2));
+
+	if (ret) {
+		fput(file);
+		return 0;
+	}
+
+	server.sin_family = AF_INET;
+	server.sin_addr = addr->sin_addr;
+	server.sin_port = NFS_PORT;
+
+	/* Call sys_connect */
+	ret = socket->ops->connect (socket, (struct sockaddr *) &server,
+				    sizeof (server), file->f_flags);
+	fput(file);
+	if (ret < 0)
+		return 0;
+	return 1;
+}
+
+/* XXXXXXXXXXXXXXXXXXXX */
+static int get_default (int value, int def_value)
+{
+    if (value)
+	return value;
+    else
+	return def_value;
+}
+
+/* XXXXXXXXXXXXXXXXXXXX */
+static int sunos_nfs_mount(char *dir_name, int linux_flags, void __user *data)
+{
+	int  server_fd, err;
+	char *the_name, *mount_page;
+	struct nfs_mount_data linux_nfs_mount;
+	struct sunos_nfs_mount_args sunos_mount;
+
+	/* Ok, here comes the fun part: Linux's nfs mount needs a
+	 * socket connection to the server, but SunOS mount does not
+	 * require this, so we use the information on the destination
+	 * address to create a socket and bind it to a reserved
+	 * port on this system
+	 */
+	if (copy_from_user(&sunos_mount, data, sizeof(sunos_mount)))
+		return -EFAULT;
+
+	server_fd = sys_socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+	if (server_fd < 0)
+		return -ENXIO;
+
+	if (copy_from_user(&linux_nfs_mount.addr, sunos_mount.addr,
+			   sizeof(*sunos_mount.addr)) ||
+	    copy_from_user(&linux_nfs_mount.root, sunos_mount.fh,
+			   sizeof(*sunos_mount.fh))) {
+		sys_close (server_fd);
+		return -EFAULT;
+	}
+
+	if (!sunos_nfs_get_server_fd (server_fd, &linux_nfs_mount.addr)){
+		sys_close (server_fd);
+		return -ENXIO;
+	}
+
+	/* Now, bind it to a locally reserved port */
+	linux_nfs_mount.version  = NFS_MOUNT_VERSION;
+	linux_nfs_mount.flags    = sunos_mount.flags;
+	linux_nfs_mount.fd       = server_fd;
+	
+	linux_nfs_mount.rsize    = get_default (sunos_mount.rsize, 8192);
+	linux_nfs_mount.wsize    = get_default (sunos_mount.wsize, 8192);
+	linux_nfs_mount.timeo    = get_default (sunos_mount.timeo, 10);
+	linux_nfs_mount.retrans  = sunos_mount.retrans;
+	
+	linux_nfs_mount.acregmin = sunos_mount.acregmin;
+	linux_nfs_mount.acregmax = sunos_mount.acregmax;
+	linux_nfs_mount.acdirmin = sunos_mount.acdirmin;
+	linux_nfs_mount.acdirmax = sunos_mount.acdirmax;
+
+	the_name = getname(sunos_mount.hostname);
+	if (IS_ERR(the_name))
+		return PTR_ERR(the_name);
+
+	strlcpy(linux_nfs_mount.hostname, the_name,
+		sizeof(linux_nfs_mount.hostname));
+	putname (the_name);
+	
+	mount_page = (char *) get_zeroed_page(GFP_KERNEL);
+	if (!mount_page)
+		return -ENOMEM;
+
+	memcpy(mount_page, &linux_nfs_mount, sizeof(linux_nfs_mount));
+
+	err = do_mount("", dir_name, "nfs", linux_flags, mount_page);
+
+	free_page((unsigned long) mount_page);
+	return err;
+}
+
+/* XXXXXXXXXXXXXXXXXXXX */
+asmlinkage int
+sunos_mount(char *type, char *dir, int flags, void *data)
+{
+	int linux_flags = 0;
+	int ret = -EINVAL;
+	char *dev_fname = 0;
+	char *dir_page, *type_page;
+
+	if (!capable (CAP_SYS_ADMIN))
+		return -EPERM;
+
+	/* We don't handle the integer fs type */
+	if ((flags & SMNT_NEWTYPE) == 0)
+		goto out;
+
+	/* Do not allow for those flags we don't support */
+	if (flags & (SMNT_GRPID|SMNT_NOSUB|SMNT_MULTI|SMNT_SYS5))
+		goto out;
+
+	if (flags & SMNT_REMOUNT)
+		linux_flags |= MS_REMOUNT;
+	if (flags & SMNT_RDONLY)
+		linux_flags |= MS_RDONLY;
+	if (flags & SMNT_NOSUID)
+		linux_flags |= MS_NOSUID;
+
+	dir_page = getname(dir);
+	ret = PTR_ERR(dir_page);
+	if (IS_ERR(dir_page))
+		goto out;
+
+	type_page = getname(type);
+	ret = PTR_ERR(type_page);
+	if (IS_ERR(type_page))
+		goto out1;
+
+	if (strcmp(type_page, "ext2") == 0) {
+		dev_fname = getname(data);
+	} else if (strcmp(type_page, "iso9660") == 0) {
+		dev_fname = getname(data);
+	} else if (strcmp(type_page, "minix") == 0) {
+		dev_fname = getname(data);
+	} else if (strcmp(type_page, "nfs") == 0) {
+		ret = sunos_nfs_mount (dir_page, flags, data);
+		goto out2;
+        } else if (strcmp(type_page, "ufs") == 0) {
+		printk("Warning: UFS filesystem mounts unsupported.\n");
+		ret = -ENODEV;
+		goto out2;
+	} else if (strcmp(type_page, "proc")) {
+		ret = -ENODEV;
+		goto out2;
+	}
+	ret = PTR_ERR(dev_fname);
+	if (IS_ERR(dev_fname))
+		goto out2;
+	lock_kernel();
+	ret = do_mount(dev_fname, dir_page, type_page, linux_flags, NULL);
+	unlock_kernel();
+	if (dev_fname)
+		putname(dev_fname);
+out2:
+	putname(type_page);
+out1:
+	putname(dir_page);
+out:
+	return ret;
+}
+#endif
+
+asmlinkage int sunos_setpgrp(pid_t pid, pid_t pgid)
+{
+	int ret;
+
+	/* So stupid... */
+	if ((!pid || pid == current->pid) &&
+	    !pgid) {
+		sys_setsid();
+		ret = 0;
+	} else {
+		ret = sys_setpgid(pid, pgid);
+	}
+	return ret;
+}
+
+/* So stupid... */
+extern long compat_sys_wait4(compat_pid_t, compat_uint_t __user *, int,
+			     struct compat_rusage __user *);
+
+asmlinkage int sunos_wait4(compat_pid_t pid, compat_uint_t __user *stat_addr, int options, struct compat_rusage __user *ru)
+{
+	int ret;
+
+	ret = compat_sys_wait4((pid ? pid : ((compat_pid_t)-1)),
+			       stat_addr, options, ru);
+	return ret;
+}
+
+extern int kill_pg(int, int, int);
+asmlinkage int sunos_killpg(int pgrp, int sig)
+{
+	return kill_pg(pgrp, sig, 0);
+}
+
+asmlinkage int sunos_audit(void)
+{
+	printk ("sys_audit\n");
+	return -1;
+}
+
+asmlinkage u32 sunos_gethostid(void)
+{
+	u32 ret;
+
+	ret = (((u32)idprom->id_machtype << 24) | ((u32)idprom->id_sernum));
+
+	return ret;
+}
+
+/* sysconf options, for SunOS compatibility */
+#define   _SC_ARG_MAX             1
+#define   _SC_CHILD_MAX           2
+#define   _SC_CLK_TCK             3
+#define   _SC_NGROUPS_MAX         4
+#define   _SC_OPEN_MAX            5
+#define   _SC_JOB_CONTROL         6
+#define   _SC_SAVED_IDS           7
+#define   _SC_VERSION             8
+
+asmlinkage s32 sunos_sysconf (int name)
+{
+	s32 ret;
+
+	switch (name){
+	case _SC_ARG_MAX:
+		ret = ARG_MAX;
+		break;
+	case _SC_CHILD_MAX:
+		ret = CHILD_MAX;
+		break;
+	case _SC_CLK_TCK:
+		ret = HZ;
+		break;
+	case _SC_NGROUPS_MAX:
+		ret = NGROUPS_MAX;
+		break;
+	case _SC_OPEN_MAX:
+		ret = OPEN_MAX;
+		break;
+	case _SC_JOB_CONTROL:
+		ret = 1;	/* yes, we do support job control */
+		break;
+	case _SC_SAVED_IDS:
+		ret = 1;	/* yes, we do support saved uids  */
+		break;
+	case _SC_VERSION:
+		/* mhm, POSIX_VERSION is in /usr/include/unistd.h
+		 * should it go on /usr/include/linux?
+		 */
+		ret = 199009;
+		break;
+	default:
+		ret = -1;
+		break;
+	};
+	return ret;
+}
+
+asmlinkage int sunos_semsys(int op, u32 arg1, u32 arg2, u32 arg3, void __user *ptr)
+{
+	union semun arg4;
+	int ret;
+
+	switch (op) {
+	case 0:
+		/* Most arguments match on a 1:1 basis but cmd doesn't */
+		switch(arg3) {
+		case 4:
+			arg3=GETPID; break;
+		case 5:
+			arg3=GETVAL; break;
+		case 6:
+			arg3=GETALL; break;
+		case 3:
+			arg3=GETNCNT; break;
+		case 7:
+			arg3=GETZCNT; break;
+		case 8:
+			arg3=SETVAL; break;
+		case 9:
+			arg3=SETALL; break;
+		}
+		/* sys_semctl(): */
+		/* value to modify semaphore to */
+		arg4.__pad = ptr;
+		ret = sys_semctl((int)arg1, (int)arg2, (int)arg3, arg4);
+		break;
+	case 1:
+		/* sys_semget(): */
+		ret = sys_semget((key_t)arg1, (int)arg2, (int)arg3);
+		break;
+	case 2:
+		/* sys_semop(): */
+		ret = sys_semop((int)arg1, (struct sembuf __user *)(unsigned long)arg2,
+				(unsigned int) arg3);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	};
+	return ret;
+}
+
+struct msgbuf32 {
+	s32 mtype;
+	char mtext[1];
+};
+
+struct ipc_perm32
+{
+	key_t    	  key;
+        compat_uid_t  uid;
+        compat_gid_t  gid;
+        compat_uid_t  cuid;
+        compat_gid_t  cgid;
+        compat_mode_t mode;
+        unsigned short  seq;
+};
+
+struct msqid_ds32
+{
+        struct ipc_perm32 msg_perm;
+        u32 msg_first;
+        u32 msg_last;
+        compat_time_t msg_stime;
+        compat_time_t msg_rtime;
+        compat_time_t msg_ctime;
+        u32 wwait;
+        u32 rwait;
+        unsigned short msg_cbytes;
+        unsigned short msg_qnum;  
+        unsigned short msg_qbytes;
+        compat_ipc_pid_t msg_lspid;
+        compat_ipc_pid_t msg_lrpid;
+};
+
+static inline int sunos_msqid_get(struct msqid_ds32 __user *user,
+				  struct msqid_ds *kern)
+{
+	if (get_user(kern->msg_perm.key, &user->msg_perm.key)		||
+	    __get_user(kern->msg_perm.uid, &user->msg_perm.uid)		||
+	    __get_user(kern->msg_perm.gid, &user->msg_perm.gid)		||
+	    __get_user(kern->msg_perm.cuid, &user->msg_perm.cuid)	||
+	    __get_user(kern->msg_perm.cgid, &user->msg_perm.cgid)	||
+	    __get_user(kern->msg_stime, &user->msg_stime)		||
+	    __get_user(kern->msg_rtime, &user->msg_rtime)		||
+	    __get_user(kern->msg_ctime, &user->msg_ctime)		||
+	    __get_user(kern->msg_ctime, &user->msg_cbytes)		||
+	    __get_user(kern->msg_ctime, &user->msg_qnum)		||
+	    __get_user(kern->msg_ctime, &user->msg_qbytes)		||
+	    __get_user(kern->msg_ctime, &user->msg_lspid)		||
+	    __get_user(kern->msg_ctime, &user->msg_lrpid))
+		return -EFAULT;
+	return 0;
+}
+
+static inline int sunos_msqid_put(struct msqid_ds32 __user *user,
+				  struct msqid_ds *kern)
+{
+	if (put_user(kern->msg_perm.key, &user->msg_perm.key)		||
+	    __put_user(kern->msg_perm.uid, &user->msg_perm.uid)		||
+	    __put_user(kern->msg_perm.gid, &user->msg_perm.gid)		||
+	    __put_user(kern->msg_perm.cuid, &user->msg_perm.cuid)	||
+	    __put_user(kern->msg_perm.cgid, &user->msg_perm.cgid)	||
+	    __put_user(kern->msg_stime, &user->msg_stime)		||
+	    __put_user(kern->msg_rtime, &user->msg_rtime)		||
+	    __put_user(kern->msg_ctime, &user->msg_ctime)		||
+	    __put_user(kern->msg_ctime, &user->msg_cbytes)		||
+	    __put_user(kern->msg_ctime, &user->msg_qnum)		||
+	    __put_user(kern->msg_ctime, &user->msg_qbytes)		||
+	    __put_user(kern->msg_ctime, &user->msg_lspid)		||
+	    __put_user(kern->msg_ctime, &user->msg_lrpid))
+		return -EFAULT;
+	return 0;
+}
+
+static inline int sunos_msgbuf_get(struct msgbuf32 __user *user, struct msgbuf *kern, int len)
+{
+	if (get_user(kern->mtype, &user->mtype)	||
+	    __copy_from_user(kern->mtext, &user->mtext, len))
+		return -EFAULT;
+	return 0;
+}
+
+static inline int sunos_msgbuf_put(struct msgbuf32 __user *user, struct msgbuf *kern, int len)
+{
+	if (put_user(kern->mtype, &user->mtype)	||
+	    __copy_to_user(user->mtext, kern->mtext, len))
+		return -EFAULT;
+	return 0;
+}
+
+asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4)
+{
+	struct sparc_stackf32 __user *sp;
+	struct msqid_ds kds;
+	struct msgbuf *kmbuf;
+	mm_segment_t old_fs = get_fs();
+	u32 arg5;
+	int rval;
+
+	switch(op) {
+	case 0:
+		rval = sys_msgget((key_t)arg1, (int)arg2);
+		break;
+	case 1:
+		if (!sunos_msqid_get((struct msqid_ds32 __user *)(unsigned long)arg3, &kds)) {
+			set_fs(KERNEL_DS);
+			rval = sys_msgctl((int)arg1, (int)arg2,
+					  (struct msqid_ds __user *)(unsigned long)arg3);
+			set_fs(old_fs);
+			if (!rval)
+				rval = sunos_msqid_put((struct msqid_ds32 __user *)(unsigned long)arg3,
+						       &kds);
+		} else
+			rval = -EFAULT;
+		break;
+	case 2:
+		rval = -EFAULT;
+		kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3,
+						 GFP_KERNEL);
+		if (!kmbuf)
+			break;
+		sp = (struct sparc_stackf32 __user *)
+			(current_thread_info()->kregs->u_regs[UREG_FP] & 0xffffffffUL);
+		if (get_user(arg5, &sp->xxargs[0])) {
+			rval = -EFAULT;
+			kfree(kmbuf);
+			break;
+		}
+		set_fs(KERNEL_DS);
+		rval = sys_msgrcv((int)arg1, (struct msgbuf __user *) kmbuf,
+				  (size_t)arg3,
+				  (long)arg4, (int)arg5);
+		set_fs(old_fs);
+		if (!rval)
+			rval = sunos_msgbuf_put((struct msgbuf32 __user *)(unsigned long)arg2,
+						kmbuf, arg3);
+		kfree(kmbuf);
+		break;
+	case 3:
+		rval = -EFAULT;
+		kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3,
+						 GFP_KERNEL);
+		if (!kmbuf || sunos_msgbuf_get((struct msgbuf32 __user *)(unsigned long)arg2,
+					       kmbuf, arg3))
+			break;
+		set_fs(KERNEL_DS);
+		rval = sys_msgsnd((int)arg1, (struct msgbuf __user *) kmbuf,
+				  (size_t)arg3, (int)arg4);
+		set_fs(old_fs);
+		kfree(kmbuf);
+		break;
+	default:
+		rval = -EINVAL;
+		break;
+	}
+	return rval;
+}
+
+struct shmid_ds32 {
+        struct ipc_perm32       shm_perm;
+        int                     shm_segsz;
+        compat_time_t         shm_atime;
+        compat_time_t         shm_dtime;
+        compat_time_t         shm_ctime;
+        compat_ipc_pid_t    shm_cpid; 
+        compat_ipc_pid_t    shm_lpid; 
+        unsigned short          shm_nattch;
+};
+                                                        
+static inline int sunos_shmid_get(struct shmid_ds32 __user *user,
+				  struct shmid_ds *kern)
+{
+	if (get_user(kern->shm_perm.key, &user->shm_perm.key)		||
+	    __get_user(kern->shm_perm.uid, &user->shm_perm.uid)		||
+	    __get_user(kern->shm_perm.gid, &user->shm_perm.gid)		||
+	    __get_user(kern->shm_perm.cuid, &user->shm_perm.cuid)	||
+	    __get_user(kern->shm_perm.cgid, &user->shm_perm.cgid)	||
+	    __get_user(kern->shm_segsz, &user->shm_segsz)		||
+	    __get_user(kern->shm_atime, &user->shm_atime)		||
+	    __get_user(kern->shm_dtime, &user->shm_dtime)		||
+	    __get_user(kern->shm_ctime, &user->shm_ctime)		||
+	    __get_user(kern->shm_cpid, &user->shm_cpid)			||
+	    __get_user(kern->shm_lpid, &user->shm_lpid)			||
+	    __get_user(kern->shm_nattch, &user->shm_nattch))
+		return -EFAULT;
+	return 0;
+}
+
+static inline int sunos_shmid_put(struct shmid_ds32 __user *user,
+				  struct shmid_ds *kern)
+{
+	if (put_user(kern->shm_perm.key, &user->shm_perm.key)		||
+	    __put_user(kern->shm_perm.uid, &user->shm_perm.uid)		||
+	    __put_user(kern->shm_perm.gid, &user->shm_perm.gid)		||
+	    __put_user(kern->shm_perm.cuid, &user->shm_perm.cuid)	||
+	    __put_user(kern->shm_perm.cgid, &user->shm_perm.cgid)	||
+	    __put_user(kern->shm_segsz, &user->shm_segsz)		||
+	    __put_user(kern->shm_atime, &user->shm_atime)		||
+	    __put_user(kern->shm_dtime, &user->shm_dtime)		||
+	    __put_user(kern->shm_ctime, &user->shm_ctime)		||
+	    __put_user(kern->shm_cpid, &user->shm_cpid)			||
+	    __put_user(kern->shm_lpid, &user->shm_lpid)			||
+	    __put_user(kern->shm_nattch, &user->shm_nattch))
+		return -EFAULT;
+	return 0;
+}
+
+asmlinkage int sunos_shmsys(int op, u32 arg1, u32 arg2, u32 arg3)
+{
+	struct shmid_ds ksds;
+	unsigned long raddr;
+	mm_segment_t old_fs = get_fs();
+	int rval;
+
+	switch(op) {
+	case 0:
+		/* do_shmat(): attach a shared memory area */
+		rval = do_shmat((int)arg1,(char __user *)(unsigned long)arg2,(int)arg3,&raddr);
+		if (!rval)
+			rval = (int) raddr;
+		break;
+	case 1:
+		/* sys_shmctl(): modify shared memory area attr. */
+		if (!sunos_shmid_get((struct shmid_ds32 __user *)(unsigned long)arg3, &ksds)) {
+			set_fs(KERNEL_DS);
+			rval = sys_shmctl((int) arg1,(int) arg2,
+					  (struct shmid_ds __user *) &ksds);
+			set_fs(old_fs);
+			if (!rval)
+				rval = sunos_shmid_put((struct shmid_ds32 __user *)(unsigned long)arg3,
+						       &ksds);
+		} else
+			rval = -EFAULT;
+		break;
+	case 2:
+		/* sys_shmdt(): detach a shared memory area */
+		rval = sys_shmdt((char __user *)(unsigned long)arg1);
+		break;
+	case 3:
+		/* sys_shmget(): get a shared memory area */
+		rval = sys_shmget((key_t)arg1,(int)arg2,(int)arg3);
+		break;
+	default:
+		rval = -EINVAL;
+		break;
+	};
+	return rval;
+}
+
+extern asmlinkage long sparc32_open(const char __user * filename, int flags, int mode);
+
+asmlinkage int sunos_open(u32 fname, int flags, int mode)
+{
+	const char __user *filename = compat_ptr(fname);
+
+	return sparc32_open(filename, flags, mode);
+}
+
+#define SUNOS_EWOULDBLOCK 35
+
+/* see the sunos man page read(2v) for an explanation
+   of this garbage. We use O_NDELAY to mark
+   file descriptors that have been set non-blocking 
+   using 4.2BSD style calls. (tridge) */
+
+static inline int check_nonblock(int ret, int fd)
+{
+	if (ret == -EAGAIN) {
+		struct file * file = fget(fd);
+		if (file) {
+			if (file->f_flags & O_NDELAY)
+				ret = -SUNOS_EWOULDBLOCK;
+			fput(file);
+		}
+	}
+	return ret;
+}
+
+asmlinkage int sunos_read(unsigned int fd, char __user *buf, u32 count)
+{
+	int ret;
+
+	ret = check_nonblock(sys_read(fd, buf, count), fd);
+	return ret;
+}
+
+asmlinkage int sunos_readv(u32 fd, void __user *vector, s32 count)
+{
+	int ret;
+
+	ret = check_nonblock(compat_sys_readv(fd, vector, count), fd);
+	return ret;
+}
+
+asmlinkage int sunos_write(unsigned int fd, char __user *buf, u32 count)
+{
+	int ret;
+
+	ret = check_nonblock(sys_write(fd, buf, count), fd);
+	return ret;
+}
+
+asmlinkage int sunos_writev(u32 fd, void __user *vector, s32 count)
+{
+	int ret;
+
+	ret = check_nonblock(compat_sys_writev(fd, vector, count), fd);
+	return ret;
+}
+
+asmlinkage int sunos_recv(u32 __fd, void __user *ubuf, int size, unsigned flags)
+{
+	int ret, fd = (int) __fd;
+
+	ret = check_nonblock(sys_recv(fd, ubuf, size, flags), fd);
+	return ret;
+}
+
+asmlinkage int sunos_send(u32 __fd, void __user *buff, int len, unsigned flags)
+{
+	int ret, fd = (int) __fd;
+
+	ret = check_nonblock(sys_send(fd, buff, len, flags), fd);
+	return ret;
+}
+
+asmlinkage int sunos_accept(u32 __fd, struct sockaddr __user *sa, int __user *addrlen)
+{
+	int ret, fd = (int) __fd;
+
+	while (1) {
+		ret = check_nonblock(sys_accept(fd, sa, addrlen), fd);
+		if (ret != -ENETUNREACH && ret != -EHOSTUNREACH)
+			break;
+	}
+	return ret;
+}
+
+#define SUNOS_SV_INTERRUPT 2
+
+asmlinkage int sunos_sigaction (int sig,
+				struct old_sigaction32 __user *act,
+				struct old_sigaction32 __user *oact)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+
+	if (act) {
+		compat_old_sigset_t mask;
+		u32 u_handler;
+
+		if (get_user(u_handler, &act->sa_handler) ||
+		    __get_user(new_ka.sa.sa_flags, &act->sa_flags))
+			return -EFAULT;
+		new_ka.sa.sa_handler = compat_ptr(u_handler);
+		__get_user(mask, &act->sa_mask);
+		new_ka.sa.sa_restorer = NULL;
+		new_ka.ka_restorer = NULL;
+		siginitset(&new_ka.sa.sa_mask, mask);
+		new_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT;
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+	if (!ret && oact) {
+		old_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT;
+		if (put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler) ||
+		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags))
+			return -EFAULT;
+		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
+	}
+
+	return ret;
+}
+
+asmlinkage int sunos_setsockopt(u32 __fd, u32 __level, u32 __optname,
+				char __user *optval, u32 __optlen)
+{
+	int fd = (int) __fd;
+	int level = (int) __level;
+	int optname = (int) __optname;
+	int optlen = (int) __optlen;
+	int tr_opt = optname;
+	int ret;
+
+	if (level == SOL_IP) {
+		/* Multicast socketopts (ttl, membership) */
+		if (tr_opt >=2 && tr_opt <= 6)
+			tr_opt += 30;
+	}
+	ret = sys_setsockopt(fd, level, tr_opt,
+			     optval, optlen);
+	return ret;
+}
+
+asmlinkage int sunos_getsockopt(u32 __fd, u32 __level, u32 __optname,
+				char __user *optval, int __user *optlen)
+{
+	int fd = (int) __fd;
+	int level = (int) __level;
+	int optname = (int) __optname;
+	int tr_opt = optname;
+	int ret;
+
+	if (level == SOL_IP) {
+		/* Multicast socketopts (ttl, membership) */
+		if (tr_opt >=2 && tr_opt <= 6)
+			tr_opt += 30;
+	}
+	ret = compat_sys_getsockopt(fd, level, tr_opt,
+				    optval, optlen);
+	return ret;
+}