diff options
| author | Vincenzo Frascino <[email protected]> | 2019-06-21 10:52:51 +0100 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2019-06-22 21:21:10 +0200 |
| commit | 22ca962288c0a1c9729e8e440b9bb9ad05df6db6 (patch) | |
| tree | c1b3c0c69fd0db55f3d7bb8533aae3dc9237ec51 | |
| parent | f66501dc53e72079045a6a17e023b41316ede220 (diff) | |
x86/vdso: Add clock_gettime64() entry point
Linux 5.1 gained the new clock_gettime64() syscall to address the Y2038
problem on 32bit systems. The x86 VDSO is missing support for this variant
of clock_gettime().
Update the x86 specific vDSO library accordingly so it exposes the new time
getter.
[ tglx: Massaged changelog ]
Signed-off-by: Vincenzo Frascino <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Catalin Marinas <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Russell King <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Paul Burton <[email protected]>
Cc: Daniel Lezcano <[email protected]>
Cc: Mark Salyzyn <[email protected]>
Cc: Peter Collingbourne <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Dmitry Safonov <[email protected]>
Cc: Rasmus Villemoes <[email protected]>
Cc: Huw Davies <[email protected]>
Cc: Shijith Thotton <[email protected]>
Cc: Andre Przywara <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | arch/x86/entry/vdso/vclock_gettime.c | 8 | ||||
| -rw-r--r-- | arch/x86/entry/vdso/vdso32/vdso32.lds.S | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c index 1a648b509d46..d9ff616bb0f6 100644 --- a/arch/x86/entry/vdso/vclock_gettime.c +++ b/arch/x86/entry/vdso/vclock_gettime.c @@ -67,6 +67,14 @@ int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts) int clock_gettime(clockid_t, struct old_timespec32 *) __attribute__((weak, alias("__vdso_clock_gettime"))); +int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts) +{ + return __cvdso_clock_gettime(clock, ts); +} + +int clock_gettime64(clockid_t, struct __kernel_timespec *) + __attribute__((weak, alias("__vdso_clock_gettime64"))); + int __vdso_clock_getres(clockid_t clock, struct old_timespec32 *res) { return __cvdso_clock_getres_time32(clock, res); diff --git a/arch/x86/entry/vdso/vdso32/vdso32.lds.S b/arch/x86/entry/vdso/vdso32/vdso32.lds.S index 991b26cc855b..c7720995ab1a 100644 --- a/arch/x86/entry/vdso/vdso32/vdso32.lds.S +++ b/arch/x86/entry/vdso/vdso32/vdso32.lds.S @@ -27,6 +27,7 @@ VERSION __vdso_gettimeofday; __vdso_time; __vdso_clock_getres; + __vdso_clock_gettime64; }; LINUX_2.5 { |