[Minios-devel] [UNIKRAFT RFC PATCH 3/5] plat/common: Implement gettimeofday function for Arm

[Jianyong Wu <jianyong.wu@xxxxxxx>]

From: Jianyong Wu <Jianyong.Wu@xxxxxxx>

Change-Id: I8efa6514970c50dfaf87d47ac10482730d76ed75
Signed-off-by: Wei Chen <wei.chen@xxxxxxx>
Signed-off-by: Jianyong Wu <Jianyong.Wu@xxxxxxx>
---
 plat/common/arm/time.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/plat/common/arm/time.c b/plat/common/arm/time.c
index 9ef0417..aee9725 100644
--- a/plat/common/arm/time.c
+++ b/plat/common/arm/time.c
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Authors: Wei Chen <Wei.Chen@xxxxxxx>
+ *          Jianyong Wu <Jianyong.Wu@xxxxxxx>
  *
  * Copyright (c) 2018, Arm Ltd. All rights reserved.
  *
@@ -32,12 +33,14 @@
  * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 #include <stdlib.h>
+#include <time.h>
 #include <libfdt.h>
 #include <uk/assert.h>
 #include <uk/plat/time.h>
 #include <uk/plat/irq.h>
 #include <uk/arch/atomic.h>
-#include <cpu.h>
+#include <arm/cpu.h>
+#include <arm/rtc.h>

 static uint64_t boot_ticks;
 static uint32_t counter_freq;
@@ -188,6 +191,20 @@ void time_block_until(__snsec until)
        }
 }

+int gettimeofday(struct timeval *tv, void *tz)
+{
+       uint64_t nsec = ukplat_monotonic_clock();
+       tv->tv_sec = rtc_boot_seconds;
+       tv->tv_sec += ukarch_time_nsec_to_sec(nsec);
+       tv->tv_usec = ukarch_time_nsec_to_usec(ukarch_time_subsec(nsec));
+
+       if(tz != NULL) {
+               /* TODO: Timezone */
+       }
+
+       return 0;
+}
+
 /* return ns since time_init() */
 __nsec ukplat_monotonic_clock(void)
 {
--
2.7.4

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