react/scripts/perf-counters/Makefile

build/jsc-perf: src/*
	mkdir -p build
	g++ -std=c++11 -I/usr/include/webkitgtk-1.0/ -ljavascriptcoregtk-1.0 src/jsc-perf.cpp src/hardware-counter.cpp src/thread-local.cpp -o build/jsc-perf
Add rudimentary jsc perf-counters runner Works at least on a CentOS 7 machine after running `sudo yum install webkitgtk webkitgtk-devel`. The only globals you get are `print` and `PerfCounters`. No `console` nor the other globals provided by the `jsc` command-line tool (load, readFile, etc) though they're probably not hard to implement. You can disable the JIT by setting the environment variable `JSC_useJIT=false`. Test Plan: ``` ~/local/react/scripts/perf-counters$ make ~/local/react/scripts/perf-counters$ build/jsc-perf <(echo 'PerfCounters.init(); var a = PerfCounters.getCounters().instructions; print("moo"); var b = PerfCounters.getCounters().instructions; print(b - a);') moo 72182 ~/local/react/scripts/perf-counters$ ``` 2015-10-01 09:36:19 +08:00			`build/jsc-perf: src/*`
			`mkdir -p build`
			`g++ -std=c++11 -I/usr/include/webkitgtk-1.0/ -ljavascriptcoregtk-1.0 src/jsc-perf.cpp src/hardware-counter.cpp src/thread-local.cpp -o build/jsc-perf`