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timer: Decouple x86_64 specific timer_settime from generic Linux implementation

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The x86_64 specific timer_settime implementation (from
./linux/x86_64/timer_settime.c) reused the Linux generic one (from
./linux/timer_settime.c) to implement handling some compatible timers
(previously defined in librt, now in libc).

As the generic implementation now is going to also support new (available
from Linux 5.1+) timer_settime64 syscall, those two implementations have
been decoupled for easier conversion.

The original INLINE_SYSCALL() macro has been replaced with
INLINE_SYSCALL_CALL() to avoid explicit passing the number of arguments.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Lukasz Majewski
2019-11-08 11:13:56 +01:00
parent 115959290f
commit ab65136e72
2 changed files with 10 additions and 11 deletions
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7
sysdeps/unix/sysv/linux/timer_settime.c
View File

@ -22,17 +22,10 @@
#include <sysdep.h>
#include "kernel-posix-timers.h"
#ifdef timer_settime_alias
# define timer_settime timer_settime_alias
#endif
int
timer_settime (timer_t timerid, int flags, const struct itimerspec *value,
struct itimerspec *ovalue)
{
#undef timer_settime
struct timer *kt = (struct timer *) timerid;
/* Delete the kernel timer object. */

14
sysdeps/unix/sysv/linux/x86_64/timer_settime.c
View File

@ -17,13 +17,19 @@
not, see <https://www.gnu.org/licenses/>. */
#include <shlib-compat.h>
#include <sysdep.h>
#include "kernel-posix-timers.h"
#include "compat-timer.h"
int
__timer_settime_new (timer_t timerid, int flags, const struct itimerspec *value,
struct itimerspec *ovalue)
{
struct timer *kt = (struct timer *) timerid;
#define timer_settime_alias __timer_settime_new
#include <sysdeps/unix/sysv/linux/timer_settime.c>
#undef timer_settime
return INLINE_SYSCALL_CALL (timer_settime, kt->ktimerid, flags, value,
ovalue);
}
versioned_symbol (librt, __timer_settime_new, timer_settime, GLIBC_2_3_3);