#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/mm.h>
+#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/sem.h>
#include <linux/mman.h>
#include <linux/file.h>
#include <linux/utsname.h>
+#include <linux/ipc.h>
#include <asm/setup.h>
#include <asm/uaccess.h>
#include <asm/cachectl.h>
#include <asm/traps.h>
-#include <asm/ipc.h>
#include <asm/page.h>
-
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-asmlinkage int sys_pipe(unsigned long * fildes)
-{
- int fd[2];
- int error;
-
- error = do_pipe(fd);
- if (!error) {
- if (copy_to_user(fildes, fd, 2*sizeof(int)))
- error = -EFAULT;
- }
- return error;
-}
+#include <asm/unistd.h>
/* common code for old and new mmaps */
static inline long do_mmap2(
unsigned long offset;
};
-asmlinkage int old_mmap(struct mmap_arg_struct *arg)
+asmlinkage int old_mmap(struct mmap_arg_struct __user *arg)
{
struct mmap_arg_struct a;
int error = -EFAULT;
struct sel_arg_struct {
unsigned long n;
- fd_set *inp, *outp, *exp;
- struct timeval *tvp;
+ fd_set __user *inp, *outp, *exp;
+ struct timeval __user *tvp;
};
-asmlinkage int old_select(struct sel_arg_struct *arg)
+asmlinkage int old_select(struct sel_arg_struct __user *arg)
{
struct sel_arg_struct a;
* This is really horribly ugly.
*/
asmlinkage int sys_ipc (uint call, int first, int second,
- int third, void *ptr, long fifth)
+ int third, void __user *ptr, long fifth)
{
int version, ret;
if (call <= SEMCTL)
switch (call) {
case SEMOP:
- return sys_semop (first, (struct sembuf *)ptr, second);
+ return sys_semop (first, ptr, second);
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);
}
if (call <= MSGCTL)
switch (call) {
case MSGSND:
- return sys_msgsnd (first, (struct msgbuf *) ptr,
- second, third);
+ return sys_msgsnd (first, ptr, second, third);
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
if (!ptr)
return -EINVAL;
- if (copy_from_user (&tmp,
- (struct ipc_kludge *)ptr,
- sizeof (tmp)))
+ if (copy_from_user (&tmp, ptr, sizeof (tmp)))
return -EFAULT;
return sys_msgrcv (first, tmp.msgp, second,
tmp.msgtyp, third);
}
default:
- return sys_msgrcv (first,
- (struct msgbuf *) ptr,
+ return sys_msgrcv (first, 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, ptr);
default:
return -ENOSYS;
}
switch (version) {
default: {
ulong raddr;
- ret = do_shmat (first, (char *) ptr,
- second, &raddr);
+ ret = do_shmat (first, ptr, second, &raddr);
if (ret)
return ret;
- return put_user (raddr, (ulong *) third);
+ return put_user (raddr, (ulong __user *) third);
}
}
case SHMDT:
- return sys_shmdt ((char *)ptr);
+ return sys_shmdt (ptr);
case SHMGET:
return sys_shmget (first, second, third);
case SHMCTL:
- return sys_shmctl (first, second,
- (struct shmid_ds *) ptr);
+ return sys_shmctl (first, second, ptr);
default:
return -ENOSYS;
}
{
return PAGE_SIZE;
}
+
+/*
+ * 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 long __res asm ("%d0") = __NR_execve;
+ register long __a asm ("%d1") = (long)(filename);
+ register long __b asm ("%d2") = (long)(argv);
+ register long __c asm ("%d3") = (long)(envp);
+ asm volatile ("trap #0" : "+d" (__res)
+ : "d" (__a), "d" (__b), "d" (__c));
+ return __res;
+}