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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-12-16 09:45:55 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-01-03 11:21:50 -0300 |
| commit | c701bcc6f4b0077e544ac100338343ac6cc4cb8a (patch) | |
| tree | 4da796093bf3027aee6f5dbc643bef7c6fe16dc7 /sysdeps/unix/sysv/linux/x86 | |
| parent | 7bcaf77574ae654974979c8c6d5f6a170c644a6e (diff) | |
| download | glibc-c701bcc6f4b0077e544ac100338343ac6cc4cb8a.tar glibc-c701bcc6f4b0077e544ac100338343ac6cc4cb8a.tar.gz glibc-c701bcc6f4b0077e544ac100338343ac6cc4cb8a.tar.bz2 glibc-c701bcc6f4b0077e544ac100338343ac6cc4cb8a.zip | |
linux: Consolidate Linux gettimeofday
The IFUNC bypass to vDSO is used when USE_IFUNC_GETTIMEOFDAY is set.
Currently aarch64, powerpc*, and x86 defines it. Otherwise the
generic implementation is used, which calls clock_gettime.
Checked on aarch64-linux-gnu, powerpc64le-linux-gnu,
powerpc64-linux-gnu, powerpc-linux-gnu-power4, x86_64-linux-gnu,
and i686-linux-gnu.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86/gettimeofday.c | 33 |
1 files changed, 2 insertions, 31 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/gettimeofday.c b/sysdeps/unix/sysv/linux/x86/gettimeofday.c index 3fb4e8d1c4..1b7aa880a2 100644 --- a/sysdeps/unix/sysv/linux/x86/gettimeofday.c +++ b/sysdeps/unix/sysv/linux/x86/gettimeofday.c @@ -16,34 +16,5 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#include <time.h> -#include <sysdep.h> -#include <sysdep-vdso.h> - -static int -__gettimeofday_syscall (struct timeval *restrict tv, void *restrict tz) -{ - if (__glibc_unlikely (tz != 0)) - memset (tz, 0, sizeof *tz); - - return INLINE_VSYSCALL (gettimeofday, 2, tv, tz); -} - -#ifdef SHARED -# include <dl-vdso.h> -# include <libc-vdso.h> - -# define INIT_ARCH() -/* If the vDSO is not available we fall back to syscall. */ -libc_ifunc (__gettimeofday, - (get_vdso_symbol (HAVE_GETTIMEOFDAY_VSYSCALL) - ?: __gettimeofday_syscall)); - -#else -int -__gettimeofday (struct timeval *restrict tv, void *restrict tz) -{ - return __gettimeofday_syscall (tv, tz); -} -#endif -weak_alias (__gettimeofday, gettimeofday) +#define USE_IFUNC_GETTIMEOFDAY +#include <sysdeps/unix/sysv/linux/gettimeofday.c> |