Merge pull request #106 from jeongarmy/kdbg_uptime

Add uptime to TASH commands

apps/system/utils/Kconfig

@@ -130,3 +130,9 @@ config STACKMONITOR_INTERVAL
 
 endif #ENABLE_STACKMONITOR
 
+config ENABLE_UPTIME
+	bool "uptime"
+	default y
+	---help---
+		print how long the system has been running
+

apps/system/utils/Makefile

@@ -128,6 +128,10 @@ ifeq ($(CONFIG_ENABLE_STACKMONITOR),y)
 CSRCS += kdbg_stackmonitor.c
 endif
 
+ifeq ($(CONFIG_ENABLE_UPTIME),y)
+CSRCS += kdbg_uptime.c
+endif
+
 AOBJS = $(ASRCS:.S=$(OBJEXT))
 COBJS = $(CSRCS:.c=$(OBJEXT))
 MAINOBJ = $(MAINSRC:.c=$(OBJEXT))

apps/system/utils/kdbg_commands.h

@@ -69,4 +69,8 @@ int kdbg_ps(int argc, char **args);
 int kdbg_stackmonitor(int argc, char **args);
 #endif
 
+#if defined(CONFIG_ENABLE_UPTIME)
+int kdbg_uptime(int argc, char **args);
+#endif
+
 #endif							/* __APPS_SYSTEM_UTILS_KDBG_COMMANDS_H */

apps/system/utils/kdbg_uptime.c

@@ -0,0 +1,56 @@
+/****************************************************************************
+ *
+ * Copyright 2017 Samsung Electronics All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ *
+ ****************************************************************************/
+#include <tinyara/config.h>
+#include <stdio.h>
+#include <time.h>
+#include <sys/types.h>
+#include <tinyara/clock.h>
+
+int kdbg_uptime(int argc, char **args)
+{
+	systime_t ticktime;
+#if defined(CONFIG_HAVE_DOUBLE) && defined(CONFIG_LIBC_FLOATINGPOINT)
+	double now;
+#else
+#ifdef CONFIG_SYSTIME_TIME64
+	uint64_t sec;
+#else
+	uint32_t sec;
+#endif
+	unsigned int csec;
+#endif
+
+	ticktime = clock_systimer();
+
+#if defined(CONFIG_HAVE_DOUBLE) && defined(CONFIG_LIBC_FLOATINGPOINT)
+	now = (double)ticktime / (double)CLOCKS_PER_SEC;
+	printf("Uptime : %.2f\n", now);
+#else
+	/* Convert the system up time to seconds + hundredths of seconds */
+	sec = ticktime / CLOCKS_PER_SEC;
+	csec = (100 * (ticktime % CLOCKS_PER_SEC) + (CLOCKS_PER_SEC / 2)) / CLOCKS_PER_SEC;
+
+	/* Make sure that rounding did not force the hundredths of a second above 99 */
+	if (csec > 99) {
+		sec++;
+		csec -= 100;
+	}
+	printf("Uptime : %u.%u\n", sec, csec);
+#endif
+	return OK;
+}

apps/system/utils/kernelcmd.c

@@ -57,6 +57,9 @@ const static tash_cmdlist_t kdbg_cmds[] = {
 #endif
 #if defined(CONFIG_ENABLE_ENV_UNSET) && !defined(CONFIG_DISABLE_ENVIRON)
 	{"unsetenv", kdbg_env_unset,    TASH_EXECMD_SYNC},
+#endif
+#if defined(CONFIG_ENABLE_UPTIME)
+	{"uptime",   kdbg_uptime,       TASH_EXECMD_SYNC},
 #endif
 	{NULL,       NULL,              0}
 };