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linux: Add support for clock_getres64 vDSO

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No architecture currently defines the vDSO symbol.  On archictures
with 64-bit time_t the HAVE_CLOCK_GETRES_VSYSCALL is renamed to
HAVE_CLOCK_GETRES64_VSYSCALL, it simplifies clock_gettime code.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Adhemerval Zanella
2019-12-11 16:39:01 -03:00
parent cdae973b6a
commit 0dc1a378b1
8 changed files with 24 additions and 12 deletions
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4
sysdeps/unix/sysv/linux/dl-vdso-setup.c
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@ -62,6 +62,10 @@ PROCINFO_CLASS int (*_dl_vdso_getcpu) (unsigned *, unsigned *, void *) RELRO;
PROCINFO_CLASS int (*_dl_vdso_clock_getres) (clockid_t,
struct timespec *) RELRO;
# endif
# ifdef HAVE_CLOCK_GETRES64_VSYSCALL
PROCINFO_CLASS int (*_dl_vdso_clock_getres_time64) (clockid_t,
struct __timespec64 *) RELRO;
# endif
/* PowerPC specific ones. */
# ifdef HAVE_GET_TBFREQ