Commit 42e1358e authored by Christian Riesch's avatar Christian Riesch Committed by David S. Miller

ptp: In the testptp utility, use clock_adjtime from glibc when available

clock_adjtime was included in glibc 2.14. _GNU_SOURCE must be defined
to make it available.
Signed-off-by: default avatarChristian Riesch <christian.riesch@omicron.at>
Cc: Richard Cochran <richardcochran@gmail.com>
Acked-by: default avatarRichard Cochran <richardcochran@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ddc6fbd8
......@@ -17,6 +17,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define _GNU_SOURCE
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
......@@ -46,12 +47,14 @@
#define CLOCK_INVALID -1
#endif
/* When glibc offers the syscall, this will go away. */
/* clock_adjtime is not available in GLIBC < 2.14 */
#if !__GLIBC_PREREQ(2, 14)
#include <sys/syscall.h>
static int clock_adjtime(clockid_t id, struct timex *tx)
{
return syscall(__NR_clock_adjtime, id, tx);
}
#endif
static clockid_t get_clockid(int fd)
{
......
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