From 2585dbebde96c6a2fc50922a37d960c2bfcd88c5 Mon Sep 17 00:00:00 2001
From: Youngwan Kim <y103.kim@samsung.com>
Date: Thu, 10 May 2018 19:53:41 +0900
Subject: [PATCH] [COMMON] lib: dss: Add dss-reader.

Change-Id: I346b3016eb6c2b100ef920fc5e735649e7654bde
Signed-off-by: Youngwan Kim <y103.kim@samsung.com>
---
 .gitignore               |  1 +
 Makefile                 |  1 +
 lib/debug-snapshot-log.h |  5 +++-
 lib/dss-reader-build.sh  | 28 ++++++++++++++++++
 lib/dss-reader.c         | 63 ++++++++++++++++++++++++++++++++++++++++
 5 files changed, 97 insertions(+), 1 deletion(-)
 create mode 100755 lib/dss-reader-build.sh
 create mode 100644 lib/dss-reader.c

diff --git a/.gitignore b/.gitignore
index be92dfa89957..fae8d143bc91 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,6 +54,7 @@ modules.builtin
 /vmlinuz
 /System.map
 /Module.markers
+/dss-reader
 
 #
 # RPM spec file (make rpm-pkg)
diff --git a/Makefile b/Makefile
index c78c0467444e..a8ef69a479b5 100644
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,7 @@ NAME = Petit Gorille
 # That's our default target when none is given on the command line
 PHONY := _all
 _all:
+	@lib/dss-reader-build.sh
 
 # o Do not use make's built-in rules and variables
 #   (this increases performance and avoids hard-to-debug behaviour);
diff --git a/lib/debug-snapshot-log.h b/lib/debug-snapshot-log.h
index 1655fa0bc641..c9cb385ecc9d 100644
--- a/lib/debug-snapshot-log.h
+++ b/lib/debug-snapshot-log.h
@@ -2,15 +2,18 @@
 #ifndef DEBUG_SNAPSHOT_LOG_H
 #define DEBUG_SNAPSHOT_LOG_H
 
+#include <generated/autoconf.h>
+
 #ifdef DSS_ANALYZER
 
 #define TASK_COMM_LEN 16
 #define NR_CPUS 8
 #undef CONFIG_DEBUG_SNAPSHOT_LINUX_BUILD
+#include <stdio.h>
+#include <stdlib.h>
 
 #else // DSS_ANALYZER
 
-#include <generated/autoconf.h>
 #include <linux/clk-provider.h>
 #include <linux/debug-snapshot.h>
 #include <linux/debug-snapshot-helper.h>
diff --git a/lib/dss-reader-build.sh b/lib/dss-reader-build.sh
new file mode 100755
index 000000000000..d959eaafc44d
--- /dev/null
+++ b/lib/dss-reader-build.sh
@@ -0,0 +1,28 @@
+clang \
+--target=aarch64-linux-gnu \
+-I/usr/aarch64-linux-gnu/include \
+-Iinclude \
+-mlittle-endian \
+-Qunused-arguments \
+-fno-strict-aliasing \
+-fno-common \
+-fshort-wchar \
+-std=gnu89 \
+-DDSS_ANALYZER \
+-fno-PIE \
+-mno-implicit-float \
+-DCONFIG_BROKEN_GAS_INST=1 \
+-fno-asynchronous-unwind-tables \
+-fno-pic \
+-Oz \
+-Wframe-larger-than=4096 \
+-fno-stack-protector \
+-mno-global-merge \
+-no-integrated-as \
+-fno-omit-frame-pointer \
+-fno-optimize-sibling-calls \
+-g \
+-fno-strict-overflow \
+-fno-merge-all-constants \
+-fno-stack-check \
+-g lib/dss-reader.c -o dss-reader
diff --git a/lib/dss-reader.c b/lib/dss-reader.c
new file mode 100644
index 000000000000..9e981a176bc2
--- /dev/null
+++ b/lib/dss-reader.c
@@ -0,0 +1,63 @@
+#include "debug-snapshot-log.h"
+
+struct dbg_snapshot_log *p;
+
+int main(int argc, char *argv[])
+{
+	FILE *f;
+	int ch;
+	long fsize;
+	char *string;
+	int i, j;
+
+	f = fopen(argv[1], "rb");
+	if (f == NULL) {
+		fputs("file read error!", stderr);
+		exit(1);
+	}
+	fseek(f, 0, SEEK_END);
+	fsize = ftell(f);
+	fseek(f, 0, SEEK_SET);  //same as rewind(f);
+
+	string = malloc(fsize + 1);
+	fread(string, fsize, 1, f);
+	fclose(f);
+	p = (struct dbg_snapshot_log *)string;
+
+	printf("log = {}\n");
+	for (i = 0; i < DSS_NR_CPUS; i++) {
+		for (j = 0; j < DSS_LOG_MAX_NUM; j++) {
+			printf("log[%.9f] = { 'type' : 'sched', 'cpu' : %d, 'comm' : '%s'}\n",
+					p->task[i][j].time/1.0e9, i, p->task[i][j].task_comm);
+			if (p->task[i][j].time == 0)
+				break;
+		}
+	}
+
+	for (i = 0; i < DSS_LOG_MAX_NUM; i++) {
+		printf("log[%.9f] = {  'type' : 'freq', 'cpu' : %d, 'freq' : %lu }\n",
+				p->freq[i].time/1.0e9, p->freq[i].cpu, p->freq[i].target_freq);
+		if (p->freq[i].time == 0)
+			break;
+	}
+
+	for (i = 0; i < DSS_NR_CPUS; i++) {
+		for (j = 0; j < DSS_LOG_MAX_NUM; j++) {
+			printf("log[%.9f] = { 'type' : 'irq', 'cpu' : %d, 'num' : '%d'}\n",
+					p->irq[i][j].time/1.0e9, i, p->irq[i][j].irq);
+			if (p->irq[i][j].time == 0)
+				break;
+		}
+	}
+
+	for (i = 0; i < DSS_NR_CPUS; i++) {
+		for (j = 0; j < DSS_LOG_MAX_NUM; j++) {
+			printf("log[%.9f] = { 'type' : 'cpuidle', 'cpu' : %d, 'state' : '%d'}\n",
+					p->cpuidle[i][j].time/1.0e9, i, p->cpuidle[i][j].state);
+			if (p->cpuidle[i][j].time == 0)
+				break;
+		}
+	}
+	return 0;
+}
+
-- 
2.20.1