busybox: use CLOCK_MONOTONIC instead of gettimeofday

The clock_gettime(CLOCK_MONOTONIC) syscall exists for so long that the first
kernel version to support it is not even specified in the man page [1]. Let's
enable it on BusyBox by default. Otherwise, gettimeofday will be used instead,
which will give wrong results if the date/time is reset (time moving backwards).

[1] https://linux.die.net/man/2/clock_gettime

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>

diff --git a/package/utils/busybox/Config-defaults.in b/package/utils/busybox/Config-defaults.in
index 91c9b9b5b92c168b19131d78bd60a20128626316..89da7ace8d8f0fe7af98f9ea6f5fa77dfa599da9 100644 (file)
--- a/package/utils/busybox/Config-defaults.in
+++ b/package/utils/busybox/Config-defaults.in
@@ -303,7 +303,7 @@ config BUSYBOX_DEFAULT_FEATURE_SKIP_ROOTFS
        default n
 config BUSYBOX_DEFAULT_MONOTONIC_SYSCALL
        bool
-       default n
+       default y
 config BUSYBOX_DEFAULT_IOCTL_HEX2STR_ERROR
        bool
        default y