#!/usr/bin/python # # Copyright 2004 Matt Mackall <mpm@selenic.com> # # inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. import sys, os, re def usage(): sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0]) sys.exit(-1) if len(sys.argv) < 3: usage() for f in sys.argv[1], sys.argv[2]: if not os.path.exists(f): sys.stderr.write("Error: file '%s' does not exist\n" % f) usage() nm_args = " ".join([x for x in sys.argv[3:]]) def getsizes(file): sym = {} for l in os.popen("nm --size-sort %s %s" % (nm_args, file)).readlines(): l = l.strip() # Skip empty lines if not len(l): continue # Skip archive members if len(l.split()) == 1 and l.endswith(':'): continue size, type, name = l.split() if type in "tTdDbBrR": if "." in name: name = "static." + name.split(".")[0] sym[name] = sym.get(name, 0) + int(size, 16) for l in os.popen("readelf -S " + file).readlines(): x = l.split() if len(x)<6 or x[1] != ".rodata": continue sym[".rodata"] = int(x[5], 16) return sym old = getsizes(sys.argv[1]) new = getsizes(sys.argv[2]) grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 delta, common = [], {} for a in old: if a in new: common[a] = 1 for name in old: if name not in common: remove += 1 down += old[name] delta.append((-old[name], name)) for name in new: if name not in common: add += 1 up += new[name] delta.append((new[name], name)) for name in common: d = new.get(name, 0) - old.get(name, 0) if d>0: grow, up = grow+1, up+d if d<0: shrink, down = shrink+1, down-d delta.append((d, name)) delta.sort() delta.reverse() print "%-48s %7s %7s %+7s" % ("function", "old", "new", "delta") for d, n in delta: if d: print "%-48s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) print "-"*78 total="(add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s)%%sTotal: %s bytes"\ % (add, remove, grow, shrink, up, -down, up-down) print total % (" "*(80-len(total)))