| #!/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[1:3]: |
| if not os.path.exists(f): |
| sys.stderr.write("Error: file '%s' does not exist\n" % f) |
| usage() |
| |
| nm_args = " ".join(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))) |