ARM: 8932/1: Add clock_gettime64 entry point

With the release of Linux 5.1 has been added a new syscall,
clock_gettime64, that provided a 64 bit time value for a specified
clock_ID to make the kernel Y2038 safe on 32 bit architectures.

Update the arm specific vDSO library accordingly with what it has
been done for the kernel syscall exposing the clock_gettime64 entry
point.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

diff --git a/arch/arm/vdso/vdso.lds.S b/arch/arm/vdso/vdso.lds.S
index 38cb8b0..165d1d2 100644 (file)
--- a/arch/arm/vdso/vdso.lds.S
+++ b/arch/arm/vdso/vdso.lds.S
@@ -72,6 +72,7 @@ VERSION
                __vdso_clock_gettime;
                __vdso_gettimeofday;
                __vdso_clock_getres;
+               __vdso_clock_gettime64;
        local: *;
        };
 }

diff --git a/arch/arm/vdso/vgettimeofday.c b/arch/arm/vdso/vgettimeofday.c
index f6da91f..1976c6f 100644 (file)
--- a/arch/arm/vdso/vgettimeofday.c
+++ b/arch/arm/vdso/vgettimeofday.c
@@ -13,6 +13,12 @@ int __vdso_clock_gettime(clockid_t clock,
        return __cvdso_clock_gettime32(clock, ts);
 }
 
+int __vdso_clock_gettime64(clockid_t clock,
+                          struct __kernel_timespec *ts)
+{
+       return __cvdso_clock_gettime(clock, ts);
+}
+
 int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
                        struct timezone *tz)
 {