#include <linux/mman.h>
#include <linux/file.h>
#include <linux/utsname.h>
-#ifdef CONFIG_ARCH_S390X
#include <linux/personality.h>
-#endif /* CONFIG_ARCH_S390X */
+#include <linux/unistd.h>
#include <asm/uaccess.h>
#include <asm/ipc.h>
* sys_pipe() is the normal C calling standard for creating
* a pipe. It's not the way Unix traditionally does this, though.
*/
-asmlinkage long sys_pipe(unsigned long * fildes)
+asmlinkage long sys_pipe(unsigned long __user *fildes)
{
int fd[2];
int error;
unsigned long offset;
};
-asmlinkage long sys_mmap2(struct mmap_arg_struct *arg)
+asmlinkage long sys_mmap2(struct mmap_arg_struct __user *arg)
{
struct mmap_arg_struct a;
int error = -EFAULT;
return error;
}
-asmlinkage long old_mmap(struct mmap_arg_struct *arg)
+asmlinkage long old_mmap(struct mmap_arg_struct __user *arg)
{
struct mmap_arg_struct a;
long error = -EFAULT;
return error;
}
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
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 long old_select(struct sel_arg_struct *arg)
+asmlinkage long old_select(struct sel_arg_struct __user *arg)
{
struct sel_arg_struct a;
return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
}
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly.
*/
-asmlinkage long sys_ipc (uint call, int first, int second,
- unsigned long third, void *ptr)
+asmlinkage long sys_ipc(uint call, int first, unsigned long second,
+ unsigned long third, void __user *ptr)
{
struct ipc_kludge tmp;
int ret;
switch (call) {
case SEMOP:
- return sys_semtimedop (first, (struct sembuf *) ptr, second,
- NULL);
+ return sys_semtimedop(first, (struct sembuf __user *)ptr,
+ (unsigned)second, NULL);
case SEMTIMEDOP:
- return sys_semtimedop (first, (struct sembuf *) ptr, second,
- (const struct timespec *) third);
+ return sys_semtimedop(first, (struct sembuf __user *)ptr,
+ (unsigned)second,
+ (const struct timespec __user *) third);
case SEMGET:
- return sys_semget (first, second, third);
+ return sys_semget(first, (int)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);
- }
+ return sys_semctl(first, (int)second, third, fourth);
+ }
case MSGSND:
- return sys_msgsnd (first, (struct msgbuf *) ptr,
- second, third);
+ return sys_msgsnd (first, (struct msgbuf __user *) ptr,
+ (size_t)second, third);
break;
case MSGRCV:
if (!ptr)
return -EINVAL;
- if (copy_from_user (&tmp, (struct ipc_kludge *) ptr,
+ if (copy_from_user (&tmp, (struct ipc_kludge __user *) ptr,
sizeof (struct ipc_kludge)))
return -EFAULT;
return sys_msgrcv (first, tmp.msgp,
- second, tmp.msgtyp, third);
+ (size_t)second, tmp.msgtyp, third);
case MSGGET:
- return sys_msgget ((key_t) first, second);
+ return sys_msgget((key_t)first, (int)second);
case MSGCTL:
- return sys_msgctl (first, second, (struct msqid_ds *) ptr);
-
+ return sys_msgctl(first, (int)second,
+ (struct msqid_ds __user *)ptr);
+
case SHMAT: {
ulong raddr;
- ret = do_shmat (first, (char *) ptr, second, &raddr);
+ ret = do_shmat(first, (char __user *)ptr,
+ (int)second, &raddr);
if (ret)
return ret;
- return put_user (raddr, (ulong *) third);
+ return put_user (raddr, (ulong __user *) third);
break;
}
- case SHMDT:
- return sys_shmdt ((char *)ptr);
+ case SHMDT:
+ return sys_shmdt ((char __user *)ptr);
case SHMGET:
- return sys_shmget (first, second, third);
+ return sys_shmget(first, (size_t)second, third);
case SHMCTL:
- return sys_shmctl (first, second,
- (struct shmid_ds *) ptr);
+ return sys_shmctl(first, (int)second,
+ (struct shmid_ds __user *) ptr);
default:
return -ENOSYS;
}
-
+
return -EINVAL;
}
-#ifdef CONFIG_ARCH_S390X
-asmlinkage long s390x_newuname(struct new_utsname * name)
+#ifdef CONFIG_64BIT
+asmlinkage long s390x_newuname(struct new_utsname __user *name)
{
int ret = sys_newuname(name);
return ret;
}
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
/*
* Wrapper function for sys_fadvise64/fadvise64_64
*/
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
asmlinkage long
s390_fadvise64(int fd, u32 offset_high, u32 offset_low, size_t len, int advice)
};
asmlinkage long
-s390_fadvise64_64(struct fadvise64_64_args *args)
+s390_fadvise64_64(struct fadvise64_64_args __user *args)
{
struct fadvise64_64_args a;
return sys_fadvise64_64(a.fd, a.offset, a.len, a.advice);
}
+/*
+ * 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 const char *__arg1 asm("2") = filename;
+ register char *const*__arg2 asm("3") = argv;
+ register char *const*__arg3 asm("4") = envp;
+ register long __svcres asm("2");
+ asm volatile(
+ "svc %b1"
+ : "=d" (__svcres)
+ : "i" (__NR_execve),
+ "0" (__arg1),
+ "d" (__arg2),
+ "d" (__arg3) : "memory");
+ return __svcres;
+}
git://git.onelab.eu / linux-2.6.git / blobdiff