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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-12-11 11:13:50 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-01-03 11:22:07 -0300 |
| commit | ff500a623d1bf9fb24f30fa80451897b534549e1 (patch) | |
| tree | 135d612e49cd8d6ec19ece7ca5bf16b9d25177be /sysdeps/unix/sysv/linux/clock_gettime.c | |
| parent | 1bdda52fe92fd01b424cd6fbb63e3df96a95015c (diff) | |
| download | glibc-ff500a623d1bf9fb24f30fa80451897b534549e1.tar glibc-ff500a623d1bf9fb24f30fa80451897b534549e1.tar.gz glibc-ff500a623d1bf9fb24f30fa80451897b534549e1.tar.bz2 glibc-ff500a623d1bf9fb24f30fa80451897b534549e1.zip | |
linux: Add support for clock_gettime64 vDSO
No architecture currently defines the vDSO symbol. On architectures
with 64-bit time_t the HAVE_CLOCK_GETTIME_VSYSCALL is renamed to
HAVE_CLOCK_GETTIME64_VSYSCALL, it simplifies clock_gettime code.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'sysdeps/unix/sysv/linux/clock_gettime.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/clock_gettime.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_gettime.c b/sysdeps/unix/sysv/linux/clock_gettime.c index 74aadbfbd4..a530daef1c 100644 --- a/sysdeps/unix/sysv/linux/clock_gettime.c +++ b/sysdeps/unix/sysv/linux/clock_gettime.c @@ -30,21 +30,24 @@ int __clock_gettime64 (clockid_t clock_id, struct __timespec64 *tp) { #ifdef __ASSUME_TIME64_SYSCALLS - /* 64 bit ABIs or Newer 32-bit ABIs that only support 64-bit time_t. */ -# ifdef __NR_clock_gettime64 - return INLINE_SYSCALL_CALL (clock_gettime64, clock_id, tp); + /* 64 bit ABIs or newer 32-bit ABIs that only support 64-bit time_t. */ +# ifndef __NR_clock_gettime64 +# define __NR_clock_gettime64 __NR_clock_gettime +# endif +# ifdef HAVE_CLOCK_GETTIME64_VSYSCALL + return INLINE_VSYSCALL (clock_gettime64, 2, clock_id, tp); # else -# ifdef HAVE_CLOCK_GETTIME_VSYSCALL - return INLINE_VSYSCALL (clock_gettime, 2, clock_id, tp); -# else - return INLINE_SYSCALL_CALL (clock_gettime, clock_id, tp); -# endif + return INLINE_SYSCALL_CALL (clock_gettime64, clock_id, tp); # endif #else int r; /* Old 32-bit ABI with possible 64-bit time_t support. */ # ifdef __NR_clock_gettime64 +# ifdef HAVE_CLOCK_GETTIME64_VSYSCALL + r = INLINE_VSYSCALL (clock_gettime64, 2, clock_id, tp); +# else r = INLINE_SYSCALL_CALL (clock_gettime64, clock_id, tp); +# endif if (r == 0 || errno != ENOSYS) return r; # endif |