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#!/bin/sh
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# find the name of the log file to process, it must not start with a dash.
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log_file="v8.log"
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for arg in "$@"
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do
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if ! expr "X${arg}" : "^X-" > /dev/null; then
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log_file=${arg}
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fi
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done
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tools_path=`cd $(dirname "$0");pwd`
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if [ ! "$D8_PATH" ]; then
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d8_public=`which d8`
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if [ -x "$d8_public" ]; then D8_PATH=$(dirname "$d8_public"); fi
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fi
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[ -n "$D8_PATH" ] || D8_PATH=$tools_path/..
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d8_exec=$D8_PATH/d8
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if [ ! -x "$d8_exec" ]; then
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D8_PATH=`pwd`/out/native
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d8_exec=$D8_PATH/d8
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fi
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if [ ! -x "$d8_exec" ]; then
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d8_exec=`grep -m 1 -o '".*/d8"' $log_file | sed 's/"//g'`
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fi
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if [ ! -x "$d8_exec" ]; then
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echo "d8 shell not found in $D8_PATH"
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echo "To build, execute 'make native' from the V8 directory"
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exit 1
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fi
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if [[ "$@" != *--distortion* ]]; then
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# Try to find out how much the instrumentation overhead is.
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calibration_log=calibration.log
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calibration_script="for (var i = 0; i < 1000000; i++) print();"
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$d8_exec --nocrankshaft --prof --logfile $calibration_log \
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--log-timer-events -e "$calibration_script" > /dev/null
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t_1_start=`grep "timer-event-start,\"V8.Execute\"" $calibration_log \
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| tail -n1 | awk -F, '{print $3}'`
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t_1_end=`grep "timer-event-end,\"V8.Execute\"" $calibration_log \
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| tail -n1 | awk -F, '{print $3}'`
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n_1=`grep "timer-event\|tick" $calibration_log | wc -l`
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$d8_exec --nocrankshaft --prof --logfile $calibration_log \
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--log-internal-timer-events -e "$calibration_script" > /dev/null
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t_2_start=`grep "timer-event-start,\"V8.Execute\"" $calibration_log \
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| tail -n1 | awk -F, '{print $3}'`
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t_2_end=`grep "timer-event-end,\"V8.Execute\"" $calibration_log \
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| tail -n1 | awk -F, '{print $3}'`
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n_2=`grep "timer-event\|tick" $calibration_log | wc -l`
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rm $calibration_log
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# Overhead in picoseconds.
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options=--distortion=
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options+=`echo "1000*(($t_1_end - $t_1_start) - ($t_2_end - $t_2_start)) \
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/ ($n_1 - $n_2)" | bc`
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echo $options
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fi
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cat $log_file |
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$d8_exec $tools_path/csvparser.js $tools_path/splaytree.js \
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$tools_path/codemap.js $tools_path/profile.js $tools_path/profile_view.js \
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$tools_path/logreader.js $tools_path/tickprocessor.js \
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$tools_path/profviz/composer.js $tools_path/profviz/stdio.js \
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-- $@ $options 2>/dev/null | gnuplot > timer-events.png
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