* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
* Copyright (C) 2001 MIPS Technologies, Inc.
*/
+#include <linux/config.h>
#include <linux/a.out.h>
+#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/linkage.h>
#include <linux/mm.h>
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/compiler.h>
+#include <linux/module.h>
#include <linux/vs_cvirt.h>
#include <asm/branch.h>
#include <asm/cachectl.h>
#include <asm/cacheflush.h>
#include <asm/ipc.h>
-#include <asm/offset.h>
+#include <asm/asm-offsets.h>
#include <asm/signal.h>
#include <asm/sim.h>
#include <asm/shmparam.h>
unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */
+EXPORT_SYMBOL(shm_align_mask);
+
#define COLOUR_ALIGN(addr,pgoff) \
((((addr) + shm_align_mask) & ~shm_align_mask) + \
(((pgoff) << PAGE_SHIFT) & shm_align_mask))
sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long pgoff)
{
- return do_mmap2(addr, len, prot, flags, fd, pgoff);
+ if (pgoff & (~PAGE_MASK >> 12))
+ return -EINVAL;
+
+ return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT-12));
}
save_static_function(sys_fork);
{
unsigned long clone_flags;
unsigned long newsp;
- int *parent_tidptr, *child_tidptr;
+ int __user *parent_tidptr, *child_tidptr;
clone_flags = regs.regs[4];
newsp = regs.regs[5];
if (!newsp)
newsp = regs.regs[29];
- parent_tidptr = (int *) regs.regs[6];
- child_tidptr = (int *) regs.regs[7];
+ parent_tidptr = (int __user *) regs.regs[6];
+#ifdef CONFIG_32BIT
+ /* We need to fetch the fifth argument off the stack. */
+ child_tidptr = NULL;
+ if (clone_flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)) {
+ int __user *__user *usp = (int __user *__user *) regs.regs[29];
+ if (regs.regs[2] == __NR_syscall) {
+ if (get_user (child_tidptr, &usp[5]))
+ return -EFAULT;
+ }
+ else if (get_user (child_tidptr, &usp[4]))
+ return -EFAULT;
+ }
+#else
+ child_tidptr = (int __user *) regs.regs[8];
+#endif
return do_fork(clone_flags, newsp, ®s, 0,
parent_tidptr, child_tidptr);
}
int error;
char * filename;
- filename = getname((char *) (long)regs.regs[4]);
+ filename = getname((char __user *) (long)regs.regs[4]);
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
- error = do_execve(filename, (char **) (long)regs.regs[5],
- (char **) (long)regs.regs[6], ®s);
+ error = do_execve(filename, (char __user *__user *) (long)regs.regs[5],
+ (char __user *__user *) (long)regs.regs[6], ®s);
putname(filename);
out:
/*
* Compacrapability ...
*/
-asmlinkage int sys_uname(struct old_utsname * name)
+asmlinkage int sys_uname(struct old_utsname __user * name)
{
if (name && !copy_to_user(name, vx_new_utsname(), sizeof (*name)))
return 0;
/*
* Compacrapability ...
*/
-asmlinkage int sys_olduname(struct oldold_utsname * name)
+asmlinkage int sys_olduname(struct oldold_utsname __user * name)
{
int error;
struct new_utsname *ptr;
return error;
}
-asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
+void sys_set_thread_area(unsigned long addr)
{
- int tmp, len;
- char *name;
-
- switch(cmd) {
- case SETNAME: {
- char nodename[__NEW_UTS_LEN + 1];
+ struct thread_info *ti = task_thread_info(current);
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
+ ti->tp_value = addr;
- name = (char *) arg1;
-
- len = strncpy_from_user(nodename, name, __NEW_UTS_LEN);
- if (len < 0)
- return -EFAULT;
+ /* If some future MIPS implementation has this register in hardware,
+ * we will need to update it here (and in context switches). */
+}
- down_write(&uts_sem);
- strncpy(vx_new_uts(nodename), nodename, len);
- nodename[__NEW_UTS_LEN] = '\0';
- strlcpy(vx_new_uts(nodename), nodename,
- sizeof(vx_new_uts(nodename)));
- up_write(&uts_sem);
- return 0;
- }
+asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
+{
+ int tmp;
+ switch(cmd) {
case MIPS_ATOMIC_SET:
printk(KERN_CRIT "How did I get here?\n");
return -EINVAL;
case FLUSH_CACHE:
__flush_cache_all();
return 0;
-
- case MIPS_RDNVRAM:
- return -EIO;
}
return -EINVAL;
* This is really horribly ugly.
*/
asmlinkage int sys_ipc (uint call, int first, int second,
- unsigned long third, void *ptr, long fifth)
+ unsigned long third, void __user *ptr, long fifth)
{
int version, ret;
switch (call) {
case SEMOP:
- return sys_semtimedop (first, (struct sembuf *)ptr, second,
- NULL);
+ return sys_semtimedop (first, (struct sembuf __user *)ptr,
+ second, NULL);
case SEMTIMEDOP:
- return sys_semtimedop (first, (struct sembuf *)ptr, second,
- (const struct timespec __user *)fifth);
+ return sys_semtimedop (first, (struct sembuf __user *)ptr,
+ second,
+ (const struct timespec __user *)fifth);
case SEMGET:
return sys_semget (first, second, third);
case SEMCTL: {
union semun fourth;
if (!ptr)
return -EINVAL;
- if (get_user(fourth.__pad, (void **) ptr))
+ if (get_user(fourth.__pad, (void __user *__user *) ptr))
return -EFAULT;
return sys_semctl (first, second, third, fourth);
}
case MSGSND:
- return sys_msgsnd (first, (struct msgbuf *) ptr,
+ return sys_msgsnd (first, (struct msgbuf __user *) ptr,
second, third);
case MSGRCV:
switch (version) {
return -EINVAL;
if (copy_from_user(&tmp,
- (struct ipc_kludge *) ptr,
+ (struct ipc_kludge __user *) ptr,
sizeof (tmp)))
return -EFAULT;
return sys_msgrcv (first, tmp.msgp, second,
}
default:
return sys_msgrcv (first,
- (struct msgbuf *) ptr,
+ (struct msgbuf __user *) ptr,
second, fifth, third);
}
case MSGGET:
return sys_msgget ((key_t) first, second);
case MSGCTL:
- return sys_msgctl (first, second, (struct msqid_ds *) ptr);
+ return sys_msgctl (first, second,
+ (struct msqid_ds __user *) ptr);
case SHMAT:
switch (version) {
default: {
ulong raddr;
- ret = do_shmat (first, (char *) ptr, second, &raddr);
+ ret = do_shmat (first, (char __user *) ptr, second,
+ &raddr);
if (ret)
return ret;
- return put_user (raddr, (ulong *) third);
+ return put_user (raddr, (ulong __user *) third);
}
case 1: /* iBCS2 emulator entry point */
if (!segment_eq(get_fs(), get_ds()))
return -EINVAL;
- return do_shmat (first, (char *) ptr, second, (ulong *) third);
+ return do_shmat (first, (char __user *) ptr, second,
+ (ulong *) third);
}
case SHMDT:
- return sys_shmdt ((char *)ptr);
+ return sys_shmdt ((char __user *)ptr);
case SHMGET:
return sys_shmget (first, second, third);
case SHMCTL:
return sys_shmctl (first, second,
- (struct shmid_ds *) ptr);
+ (struct shmid_ds __user *) ptr);
default:
return -ENOSYS;
}
git://git.onelab.eu / linux-2.6.git / blobdiff