From b97fba2cf2716521c8ba93aba769e218a367de21 Mon Sep 17 00:00:00 2001
From: Joseph Chen <chenjh@rock-chips.com>
Date: Fri, 1 Feb 2019 15:19:25 +0800
Subject: [PATCH] scripts: add stacktrace.sh to parse stacktrace info

Usage:
	./scripts/stacktrace.sh	<file>

	@<file>: stacktrace info file

Change-Id: I1a7b4798d9826d87ce03186958c51b30784d03e1
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
---
 scripts/stacktrace.sh | 80 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100755 scripts/stacktrace.sh

diff --git a/scripts/stacktrace.sh b/scripts/stacktrace.sh
new file mode 100755
index 0000000000..cb0383254d
--- /dev/null
+++ b/scripts/stacktrace.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+#
+# Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd
+#
+# SPDX-License-Identifier: GPL-2.0
+#
+
+set -e
+ARGS_N=$#
+INPUT_FILE=$1
+SYMBOL_FILE=`find -name u-boot.sym`
+
+echo
+if [ $ARGS_N -eq 0 ]; then
+	echo "Usage: "
+	echo "	./scripts/stacktrace.sh <file>  // u-boot stacktrace info file"
+	exit 1
+elif [ ! -f $INPUT_FILE ]; then
+	echo "Can't find input file: $INPUT_FILE"
+	exit 1
+elif [ "$SYMBOL_FILE" = '' ] || [ ! -f $SYMBOL_FILE ]; then
+	echo "Can't find symbol file: u-boot.sym"
+	exit 1
+fi
+
+# Parse PC and LR
+echo "Call trace:"
+sed -n "/:   \[</p" $INPUT_FILE | while read line
+do
+	echo -n " ${line}  "
+
+	frame_pc_str=`echo $line | awk '{ print "0x"$3 }'`
+	frame_pc_dec=`echo $line | awk '{ print strtonum("0x"$3); }'`
+	frame_pc_hex=`echo "obase=16;${frame_pc_dec}"|bc |tr '[A-Z]' '[a-z]'`
+
+	f_pc_dec=`cat u-boot.sym | sort | awk '/\.text/ { if (strtonum("0x"$1) > '$frame_pc_str') { print fpc; exit; } fpc=strtonum("0x"$1); }'`
+	f_pc_hex=`echo "obase=16;${f_pc_dec}"|bc |tr '[A-Z]' '[a-z]'`
+	f_offset_dec=$((frame_pc_dec-f_pc_dec))
+	f_offset_hex=`echo "obase=16;${f_offset_dec}"|bc |tr '[A-Z]' '[a-z]'`
+
+	cat u-boot.sym | sort |
+	awk -v foffset=$f_offset_hex '/\.text/ {
+		if (strtonum("0x"$1) > '$frame_pc_str') {
+			printf("%s+0x%s/0x%x\n", fname, foffset, fsize);
+			exit
+		}
+		fname=$NF;
+		fsize=strtonum("0x"$5);
+		fpc=strtonum("0x"$1);
+	}'
+done
+echo
+
+# Parse stack
+echo "Stack:"
+sed -n "/        \[</p" $INPUT_FILE | while read line
+do
+	echo -n "       ${line}  "
+
+	frame_pc_str=`echo $line | awk '{ print "0x"$2 }'`
+	frame_pc_dec=`echo $line | awk '{ print strtonum("0x"$2); }'`
+	frame_pc_hex=`echo "obase=16;${frame_pc_dec}"|bc |tr '[A-Z]' '[a-z]'`
+
+	f_pc_dec=`cat u-boot.sym | sort | awk '/\.text/ { if (strtonum("0x"$1) > '$frame_pc_str') { print fpc; exit; } fpc=strtonum("0x"$1); }'`
+	f_pc_hex=`echo "obase=16;${f_pc_dec}"|bc |tr '[A-Z]' '[a-z]'`
+	f_offset_dec=$((frame_pc_dec-f_pc_dec))
+	f_offset_hex=`echo "obase=16;${f_offset_dec}"|bc |tr '[A-Z]' '[a-z]'`
+
+	cat u-boot.sym | sort |
+	awk -v foffset=$f_offset_hex '/\.text/ {
+		if (strtonum("0x"$1) > '$frame_pc_str') {
+			printf("%s+0x%s/0x%x\n", fname, foffset, fsize);
+			exit
+		}
+		fname=$NF;
+		fsize=strtonum("0x"$5);
+		fpc=strtonum("0x"$1);
+	}'
+done
+echo