import os, sys
import graphlib


def parse(f):
    graphs = {}
    def getgraph(name):
        try:
            return graphs[name]
        except KeyError:
            res = graphs[name] = graphlib.Graph(name)
            return res

    for line in f:
        if line.startswith('index'):
            break
    firstgraph = None
    while True:
        lines = []
        middle = None
        for line in f:
            if line.startswith("-------------------"):
                break
            if line.startswith("\f"):
                return firstgraph
            fields = line.strip().split()
            if line.startswith('['):
                assert middle is None
                middle = len(lines)
            fields = [s for s in fields if not (s.startswith('[') and s.endswith(']'))]
            name = None
            i = 0
            for fld in fields:
                if not ('0' <= fld[0] <= '9' or fld[0]=='['):
                    name = fld
                    fields[i] = '\\n'+name
                    break
                i += 1
            if name and name.startswith('<'):
                name = None
            lines.append((name, fields))
        assert middle is not None
        g = getgraph(lines[middle][0])
        nodes = []
        i = 0
        for name, fields in lines:
            g.emit_node('n%d'%i, label='  '.join(fields), shape="box")
            i += 1
        for i in range(middle):
            g.emit_edge('n%d'%i, 'n%d'%middle)
        for i in range(middle+1, len(lines)):
            g.emit_edge('n%d'%middle, 'n%d'%i)
        for i in range(len(lines)):
            name, _ = lines[i]
            if name and i != middle:
                g.highlight(name, name, getgraph(name))
        if firstgraph is None:
            firstgraph = g

if len(sys.argv) > 1:
    f = os.popen("gprof --brief --no-flat-profile --graph %s" % ' '.join(sys.argv[1:]), 'r')
else:
    f = sys.stdin
g = parse(f)
f.close()
g.display()