diff options
Diffstat (limited to 'scripts')
-rwxr-xr-x | scripts/bloat-o-meter | 65 | ||||
-rwxr-xr-x | scripts/showasm | 20 |
2 files changed, 85 insertions, 0 deletions
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter new file mode 100755 index 00000000..31364fe1 --- /dev/null +++ b/scripts/bloat-o-meter @@ -0,0 +1,65 @@ +#!/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 "." 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))) diff --git a/scripts/showasm b/scripts/showasm new file mode 100755 index 00000000..75a6efd7 --- /dev/null +++ b/scripts/showasm @@ -0,0 +1,20 @@ +#!/bin/sh + +# Copyright 2006 Rob Landley <rob@landley.net> + +# Dumb little utility function to print out the assembly dump of a single +# function, or list the functions so dumpable in an executable. You'd think +# there would be a way to get objdump to do this, but I can't find it. + +[ $# -lt 1 ] || [ $# -gt 2 ] && { echo "usage: showasm file function"; exit 1; } + +[ ! -f $1 ] && { echo "File $1 not found"; exit 1; } + +if [ $# -eq 1 ] +then + objdump -d $1 | sed -n -e 's/^[0-9a-fA-F]* <\(.*\)>:$/\1/p' + exit 0 +fi + +objdump -d $1 | sed -n -e '/./{H;$!d}' -e "x;/^.[0-9a-fA-F]* <$2>:/p" + |