util/ectool, common/system: Share sysmbol reset_flag_desc.

There were two symbols reset_flag_desc and reset_flag_strings used
in two separated places: host binary ectool and device.
This CL combines these two symbols to reduce maintance efforts.

TEST=make buildall -j
BRANCH=None
BUG=None

Change-Id: I3b5731ab08804f46629d6e43466dce963bd86a69
Signed-off-by: Yilun Lin <yllin@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1514395
Commit-Ready: Yilun Lin <yllin@chromium.org>
Tested-by: Yilun Lin <yllin@chromium.org>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>

3 files changed, 55 insertions, 34 deletions

diff --git a/common/system.c b/common/system.c
index 813c0b6399..458798357c 100644
--- a/common/system.c
+++ b/common/system.c
@@ -86,16 +86,6 @@ struct jump_data {
 /* Jump data (at end of RAM, or preceding panic data) */
 static struct jump_data *jdata;
 
-/*
- * Reset flag descriptions.  Must be in same order as bits of RESET_FLAG_
- * constants.
- */
-static const char * const reset_flag_descs[] = {
-	"other", "reset-pin", "brownout", "power-on", "watchdog", "soft",
-	"hibernate", "rtc-alarm", "wake-pin", "low-battery", "sysjump",
-	"hard", "ap-off", "preserved", "usb-resume", "rdd", "rbox",
-	"security", "ap-watchdog" };
-
 static uint32_t reset_flags;
 static int jumped_to_image;
 static int disable_jump;  /* Disable ALL jumps if system is locked */
@@ -278,6 +268,9 @@ void system_print_reset_flags(void)
 {
 	int count = 0;
 	int i;
+	static const char * const reset_flag_descs[] = {
+		#include "reset_flag_desc.inc"
+	};
 
 	if (!reset_flags) {
 		CPUTS("unknown");
@@ -292,6 +285,13 @@ void system_print_reset_flags(void)
 			CPUTS(reset_flag_descs[i]);
 		}
 	}
+
+	if (reset_flags >= BIT(i)) {
+		if (count)
+			CPUTS(" ");
+
+		CPUTS("no-desc");
+	}
 }
 
 int system_jumped_to_this_image(void)
diff --git a/include/reset_flag_desc.inc b/include/reset_flag_desc.inc
new file mode 100644
index 0000000000..425332b31b
--- /dev/null
+++ b/include/reset_flag_desc.inc
@@ -0,0 +1,28 @@
+/* Copyright 2019 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/*
+ * Reset flag descriptions.  Must be in same order as bits of RESET_FLAG_
+ * constants.
+ */
+"other",
+"reset-pin",
+"brownout",
+"power-on",
+"watchdog",
+"soft",
+"hibernate",
+"rtc-alarm",
+"wake-pin",
+"low-battery",
+"sysjump",
+"hard",
+"ap-off",
+"preserved",
+"usb-resume",
+"rdd",
+"rbox",
+"security",
+"ap-watchdog",
diff --git a/util/ectool.c b/util/ectool.c
index 9d51cc7bc4..1717ae1850 100644
--- a/util/ectool.c
+++ b/util/ectool.c
@@ -843,33 +843,14 @@ static const char *reset_cause_to_str(uint16_t cause)
 
 int cmd_uptimeinfo(int argc, char *argv[])
 {
-	static const char * const reset_flag_strings[] = {
-		"other",
-		"reset-pin",
-		"brownout",
-		"power-on",
-		"watchdog",
-		"soft",
-		"hibernate",
-		"rtc-alarm",
-		"wake-pin",
-		"low-battery",
-		"sysjump",
-		"hard",
-		"ap-off",
-		"preserved",
-		"usb-resume",
-		"rdd",
-		"rbox",
-		"security",
-		"ap-watchdog"
-	};
-
 	struct ec_response_uptime_info r;
 	int rv;
 	int i;
 	int flag_count;
 	uint32_t flag;
+	static const char * const reset_flag_descs[] = {
+		#include "reset_flag_desc.inc"
+	};
 
 	if (argc != 1) {
 		fprintf(stderr, "uptimeinfo takes no arguments");
@@ -901,15 +882,27 @@ int cmd_uptimeinfo(int argc, char *argv[])
 	}
 
 	printf("EC reset flags at last EC boot: ");
+
+	if (!r.ec_reset_flags) {
+		printf("unknown\n");
+		return 0;
+	}
+
 	flag_count = 0;
-	for (flag = 0; flag != ARRAY_SIZE(reset_flag_strings); ++flag) {
+	for (flag = 0; flag < ARRAY_SIZE(reset_flag_descs); ++flag) {
 		if ((r.ec_reset_flags & BIT(flag)) != 0) {
 			if (flag_count)
 				printf(" | ");
-			printf(reset_flag_strings[flag]);
+			printf(reset_flag_descs[flag]);
 			flag_count++;
 		}
 	}
+
+	if (r.ec_reset_flags >= BIT(flag)) {
+		if (flag_count)
+			printf(" | ");
+		printf("no-desc");
+	}
 	printf("\n");
 	return 0;
 }