diff options
| -rw-r--r-- | Makefile | 5 | ||||
| -rwxr-xr-x | scripts/bloat-o-meter | 60 |
2 files changed, 65 insertions, 0 deletions
@@ -132,6 +132,8 @@ help: @echo ' uninstall' @echo @echo 'Development:' + @echo ' bloatcheck - show size difference between busybox_unstripped' + @echo ' and busybox_old @echo ' check - run the test suite for all applets' @echo ' checkhelp - check for missing help-entries in Config.in' @echo ' randconfig - generate a random configuration' @@ -358,6 +360,9 @@ checkhelp: .PHONY: sizes sizes: busybox_unstripped $(NM) --size-sort $(<) +.PHONY: bloatcheck +bloatcheck: busybox_old busybox_unstripped + @scripts/bloat-o-meter busybox_old busybox_unstripped .PHONY: objsizes objsizes: busybox_unstripped diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter new file mode 100755 index 0000000..af42f84 --- /dev/null +++ b/scripts/bloat-o-meter @@ -0,0 +1,60 @@ +#!/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 + +if len(sys.argv) != 3: + sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0]) + sys.exit(-1) + +def getsizes(file): + sym = {} + for l in os.popen("nm --size-sort " + file).readlines(): + size, type, name = l[:-1].split() + if type in "tTdDbB": + if name.find(".") != -1: name = "static." + name.split(".")[0] + if name in sym: sym[name] += int(size, 16) + else :sym[name] = int(size, 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 "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ + (add, remove, grow, shrink, up, -down, up-down) +print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta") +for d, n in delta: + if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) |