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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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3
sysdeps/unix/sysv/linux/powerpc/sysdep.h
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@ -20,10 +20,11 @@
#define VDSO_HASH 123718565
/* List of system calls which are supported as vsyscalls. */
#define HAVE_CLOCK_GETRES_VSYSCALL "__kernel_clock_getres"
#if defined(__PPC64__) || defined(__powerpc64__)
#define HAVE_CLOCK_GETRES64_VSYSCALL "__kernel_clock_getres"
#define HAVE_CLOCK_GETTIME64_VSYSCALL "__kernel_clock_gettime"
#else
#define HAVE_CLOCK_GETRES_VSYSCALL "__kernel_clock_getres"
#define HAVE_CLOCK_GETTIME_VSYSCALL "__kernel_clock_gettime"
#endif
#define HAVE_GETCPU_VSYSCALL "__kernel_getcpu"