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linux: Add support for clock_gettime64 vDSO

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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>
This commit is contained in:
Adhemerval Zanella
2019-12-11 11:13:50 -03:00
parent 1bdda52fe9
commit ff500a623d
9 changed files with 34 additions and 12 deletions
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6
sysdeps/unix/sysv/linux/sparc/sysdep.h
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@ -45,7 +45,11 @@
# define VDSO_HASH 61765110
/* List of system calls which are supported as vsyscalls. */
# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
# ifdef __arch64__
# define HAVE_CLOCK_GETTIME64_VSYSCALL "__vdso_clock_gettime"
# else
# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
# endif
# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
#undef INLINE_SYSCALL