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timer: Decouple x86_64 specific timer_gettime from generic Linux implementation

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The x86_64 specific timer_gettime implementation (from
./linux/x86_64/timer_gettime.c) reused the Linux generic one (from
./linux/timer_gettime.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_gettime64 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 2019-11-05 12:18:24 +01:00
parent 4b135425d8
commit 115959290f
2 changed files with 8 additions and 11 deletions
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7
sysdeps/unix/sysv/linux/timer_gettime.c
View File

@ -22,16 +22,9 @@
#include <sysdep.h>
#include "kernel-posix-timers.h"
#ifdef timer_gettime_alias
# define timer_gettime timer_gettime_alias
#endif
int
timer_gettime (timer_t timerid, struct itimerspec *value)
{
#undef timer_gettime
struct timer *kt = (struct timer *) timerid;
/* Delete the kernel timer object. */

12
sysdeps/unix/sysv/linux/x86_64/timer_gettime.c
View File

@ -17,13 +17,17 @@
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_gettime_new (timer_t timerid, struct itimerspec *value)
{
struct timer *kt = (struct timer *) timerid;
#define timer_gettime_alias __timer_gettime_new
#include <sysdeps/unix/sysv/linux/timer_gettime.c>
#undef timer_gettime
return INLINE_SYSCALL_CALL (timer_gettime, kt->ktimerid, value);
}
versioned_symbol (librt, __timer_gettime_new, timer_gettime, GLIBC_2_3_3);