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Commit 3880279a authored by Sasha Smundak's avatar Sasha Smundak
Browse files

Add an option to gather CPU profile. 

Bug: 172923994
Test: internal
Change-Id: I43e6121855e909eaca2204a811f12174fb8b6b5f
parent 0554d760

mk2rbc/cmd/mk2rbc.go

+10 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ import ( 
	"path/filepath"

	"regexp"

	"runtime/debug"

	"runtime/pprof"

	"sort"

	"strings"

	"time"
@@ -52,6 +53,7 @@ var ( 
	outputTop             = flag.String("outdir", "", "write output files into this directory hierarchy")

	launcher              = flag.String("launcher", "", "generated launcher path. If set, the non-flag argument is _product_name_")

	printProductConfigMap = flag.Bool("print_product_config_map", false, "print product config map and exit")

	cpuProfile            = flag.String("cpu_profile", "", "write cpu profile to file")

	traceCalls            = flag.Bool("trace_calls", false, "trace function calls")

)
@@ -122,6 +124,14 @@ func main() { 
		tracedVariables = strings.Split(*traceVar, ",")

	}



	if *cpuProfile != "" {

		f, err := os.Create(*cpuProfile)

		if err != nil {

			quit(err)

		}

		pprof.StartCPUProfile(f)

		defer pprof.StopCPUProfile()

	}

	// Find out global variables

	getConfigVariables()

	getSoongVariables()