* 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/shm.h>
#include <linux/compiler.h>
#include <linux/module.h>
-#include <linux/vs_cvirt.h>
#include <asm/branch.h>
#include <asm/cachectl.h>
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);
*/
asmlinkage int sys_uname(struct old_utsname __user * name)
{
- if (name && !copy_to_user(name, vx_new_utsname(), sizeof (*name)))
+ if (name && !copy_to_user(name, utsname(), sizeof (*name)))
return 0;
return -EFAULT;
}
asmlinkage int sys_olduname(struct oldold_utsname __user * name)
{
int error;
- struct new_utsname *ptr;
if (!name)
return -EFAULT;
if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
return -EFAULT;
- ptr = vx_new_utsname();
- error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN);
- error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN);
- error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN);
- error -= __put_user(0,name->release+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN);
- error -= __put_user(0,name->version+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->machine,ptr->machine,__OLD_UTS_LEN);
- error = __put_user(0,name->machine+__OLD_UTS_LEN);
+ error = __copy_to_user(&name->sysname, &utsname()->sysname,
+ __OLD_UTS_LEN);
+ error -= __put_user(0, name->sysname + __OLD_UTS_LEN);
+ error -= __copy_to_user(&name->nodename, &utsname()->nodename,
+ __OLD_UTS_LEN);
+ error -= __put_user(0, name->nodename + __OLD_UTS_LEN);
+ error -= __copy_to_user(&name->release, &utsname()->release,
+ __OLD_UTS_LEN);
+ error -= __put_user(0, name->release + __OLD_UTS_LEN);
+ error -= __copy_to_user(&name->version, &utsname()->version,
+ __OLD_UTS_LEN);
+ error -= __put_user(0, name->version + __OLD_UTS_LEN);
+ error -= __copy_to_user(&name->machine, &utsname()->machine,
+ __OLD_UTS_LEN);
+ error = __put_user(0, name->machine + __OLD_UTS_LEN);
error = error ? -EFAULT : 0;
return error;
}
-void sys_set_thread_area(unsigned long addr)
+asmlinkage int sys_set_thread_area(unsigned long addr)
{
struct thread_info *ti = task_thread_info(current);
/* If some future MIPS implementation has this register in hardware,
* we will need to update it here (and in context switches). */
+
+ return 0;
}
asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
{
- int tmp, len;
- char __user *name;
+ int tmp;
switch(cmd) {
- case SETNAME: {
- char nodename[__NEW_UTS_LEN + 1];
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- name = (char __user *) arg1;
-
- len = strncpy_from_user(nodename, name, __NEW_UTS_LEN);
- if (len < 0)
- return -EFAULT;
-
- 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;
- }
-
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,
+asmlinkage int sys_ipc (unsigned int call, int first, int second,
unsigned long third, void __user *ptr, long fifth)
{
int version, ret;
union semun fourth;
if (!ptr)
return -EINVAL;
- if (get_user(fourth.__pad, (void *__user *) ptr))
+ if (get_user(fourth.__pad, (void __user *__user *) ptr))
return -EFAULT;
return sys_semctl (first, second, third, fourth);
}
case SHMAT:
switch (version) {
default: {
- ulong raddr;
+ unsigned long raddr;
ret = do_shmat (first, (char __user *) ptr, second,
&raddr);
if (ret)
return ret;
- return put_user (raddr, (ulong __user *) third);
+ return put_user (raddr, (unsigned long __user *) third);
}
case 1: /* iBCS2 emulator entry point */
if (!segment_eq(get_fs(), get_ds()))
return -EINVAL;
return do_shmat (first, (char __user *) ptr, second,
- (ulong *) third);
+ (unsigned long *) third);
}
case SHMDT:
return sys_shmdt ((char __user *)ptr);
{
do_exit(SIGSEGV);
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register unsigned long __a0 asm("$4") = (unsigned long) filename;
+ register unsigned long __a1 asm("$5") = (unsigned long) argv;
+ register unsigned long __a2 asm("$6") = (unsigned long) envp;
+ register unsigned long __a3 asm("$7");
+ unsigned long __v0;
+
+ __asm__ volatile (" \n"
+ " .set noreorder \n"
+ " li $2, %5 # __NR_execve \n"
+ " syscall \n"
+ " move %0, $2 \n"
+ " .set reorder \n"
+ : "=&r" (__v0), "=r" (__a3)
+ : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_execve)
+ : "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24",
+ "memory");
+
+ if (__a3 == 0)
+ return __v0;
+
+ return -__v0;
+}
git://git.onelab.eu / linux-2.6.git / blobdiff