USTORE(9) | Kernel Developer's Manual | USTORE(9) |
ustore
, ustore_8
,
ustore_16
, ustore_32
,
ustore_64
, ustore_char
,
ustore_short
, ustore_int
,
ustore_long
, ustore_ptr
—
#include <sys/systm.h>
int
ustore_8
(const
uint8_t *uaddr, uint8_t
val);
int
ustore_16
(const
uint16_t *uaddr, uint16_t
val);
int
ustore_32
(const
uint32_t *uaddr, uint32_t
val);
int
ustore_64
(const
uint64_t *uaddr, uint64_t
val);
int
ustore_char
(const
unsigned char *uaddr,
unsigned char val);
int
ustore_short
(const
unsigned short *uaddr,
unsigned short val);
int
ustore_int
(const
unsigned int *uaddr,
unsigned int val);
int
ustore_long
(const
unsigned long *uaddr,
unsigned long val);
int
ustore_ptr
(const
void **uaddr, void
*val);
ustore
functions provide a way to store a value to
single memory cells in user-space. In each case, the value
val is stored in the user-space memory location
referenced by uaddr.
The ustore_64
function is only available
on systems employing the ‘LP64’ memory model, which can be
determined by testing for the presence of the _LP64
C preprocessor macro.
ustore
functions return 0 on success and an error
number on failure.
March 18, 2019 | NetBSD 9.2 |