Changeset 2725 in MondoRescue for branches/2.2.9/mindi-busybox/scripts/bloat-o-meter
- Timestamp:
- Feb 25, 2011, 9:26:54 PM (13 years ago)
- File:
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- 1 edited
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branches/2.2.9/mindi-busybox/scripts/bloat-o-meter
r1765 r2725 8 8 # of the GNU General Public License, incorporated herein by reference. 9 9 10 import sys, os , re10 import sys, os#, re 11 11 12 if len(sys.argv) != 3:13 sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])12 def usage(): 13 sys.stderr.write("usage: %s [-t] file1 file2\n" % sys.argv[0]) 14 14 sys.exit(-1) 15 15 16 for f in sys.argv[1], sys.argv[2]: 17 if not os.path.exists(f): 18 sys.stderr.write("Error: file '%s' does not exist\n" % f) 19 sys.exit(-1) 16 f1, f2 = (None, None) 17 flag_timing, dashes = (False, False) 20 18 19 for f in sys.argv[1:]: 20 if f.startswith("-"): 21 if f == "--": # sym_args 22 dashes = True 23 break 24 if f == "-t": # timings 25 flag_timing = True 26 else: 27 if not os.path.exists(f): 28 sys.stderr.write("Error: file '%s' does not exist\n" % f) 29 usage() 30 if f1 is None: 31 f1 = f 32 elif f2 is None: 33 f2 = f 34 if flag_timing: 35 import time 36 if f1 is None or f2 is None: 37 usage() 38 39 sym_args = " ".join(sys.argv[3 + flag_timing + dashes:]) 21 40 def getsizes(file): 22 sym = {} 23 for l in os.popen("nm --size-sort " + file).readlines(): 24 size, type, name = l[:-1].split() 25 if type in "tTdDbBrR": 26 if "." in name: name = "static." + name.split(".")[0] 27 sym[name] = sym.get(name, 0) + int(size, 16) 28 for l in os.popen("readelf -S " + file).readlines(): 41 sym, alias, lut = {}, {}, {} 42 #dynsym_filter = re.compile("^\d+:\s+[\dA-Fa-f]+\s+\d+\s+\w+\s+\w+\s+\w+\s+\w+\s+\w+$") 43 for l in os.popen("readelf -W -s %s %s" % (sym_args, file)).readlines(): 44 if True: 45 l = l.strip() 46 if not (len(l) and l[0].isdigit() and len(l.split()) == 8): 47 continue 48 num, value, size, typ, bind, vis, ndx, name = l.split() 49 if ndx == "UND": continue # skip undefined 50 if typ in ["SECTION", "FILES"]: continue # skip sections and files 51 #else: 52 # l = l.strip() 53 # match = dynsym_filter.match(l) 54 # if not match: continue 55 # x, value, size, typ, bind, x, ndx, name = l.split() 56 # if ndx == "UND": continue # skip undefined 57 # if typ in ["SECTION", "FILES"]: continue # skip sections and files 58 if "." in name: name = "static." + name.split(".")[0] 59 value = int(value, 16) 60 size = int(size) 61 if vis != "DEFAULT" and bind != "GLOBAL": # see if it is an alias 62 alias[(value, size)] = {"name" : name} 63 else: 64 sym[name] = {"addr" : value, "size": size} 65 lut[(value, size)] = 0 66 for addr, sz in iter(alias.keys()): 67 # If the non-GLOBAL sym has an implementation elsewhere then 68 # it's an alias, disregard it. 69 if not (addr, sz) in lut: 70 # If this non-GLOBAL sym does not have an implementation at 71 # another address, then treat it as a normal symbol. 72 sym[alias[(addr, sz)]["name"]] = {"addr" : addr, "size": sz} 73 for l in os.popen("readelf -W -S " + file).readlines(): 29 74 x = l.split() 30 if len(x)<6 or x[1] != ".rodata": continue 31 sym[".rodata"] = int(x[5], 16) 75 if len(x)<6: continue 76 # Should take these into account too! 77 #if x[1] not in [".text", ".rodata", ".symtab", ".strtab"]: continue 78 if x[1] not in [".rodata"]: continue 79 sym[x[1]] = {"addr" : int(x[3], 16), "size" : int(x[5], 16)} 32 80 return sym 33 81 34 old = getsizes(sys.argv[1]) 35 new = getsizes(sys.argv[2]) 82 if flag_timing: 83 start_t1 = int(time.time() * 1e9) 84 old = getsizes(f1) 85 if flag_timing: 86 end_t1 = int(time.time() * 1e9) 87 start_t2 = int(time.time() * 1e9) 88 new = getsizes(f2) 89 if flag_timing: 90 end_t2 = int(time.time() * 1e9) 91 start_t3 = int(time.time() * 1e9) 36 92 grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 37 93 delta, common = [], {} 38 94 39 for a in old:40 if ain new:41 common[ a] = 195 for name in iter(old.keys()): 96 if name in new: 97 common[name] = 1 42 98 43 99 for name in old: 44 100 if name not in common: 45 101 remove += 1 46 down += old[name] 47 delta.append((-old[name], name)) 102 sz = old[name]["size"] 103 down += sz 104 delta.append((-sz, name)) 48 105 49 106 for name in new: 50 107 if name not in common: 51 108 add += 1 52 up += new[name] 53 delta.append((new[name], name)) 109 sz = new[name]["size"] 110 up += sz 111 delta.append((sz, name)) 54 112 55 113 for name in common: 56 d = new .get(name, 0) - old.get(name, 0)114 d = new[name].get("size", 0) - old[name].get("size", 0) 57 115 if d>0: grow, up = grow+1, up+d 58 if d<0: shrink, down = shrink+1, down-d 116 elif d<0: shrink, down = shrink+1, down-d 117 else: 118 continue 59 119 delta.append((d, name)) 60 120 61 121 delta.sort() 62 122 delta.reverse() 123 if flag_timing: 124 end_t3 = int(time.time() * 1e9) 63 125 64 print "%-48s %7s %7s %+7s" % ("function", "old", "new", "delta")126 print("%-48s %7s %7s %+7s" % ("function", "old", "new", "delta")) 65 127 for d, n in delta: 66 if d: print "%-48s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) 67 print "-"*78 128 if d: 129 old_sz = old.get(n, {}).get("size", "-") 130 new_sz = new.get(n, {}).get("size", "-") 131 print("%-48s %7s %7s %+7d" % (n, old_sz, new_sz, d)) 132 print("-"*78) 68 133 total="(add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s)%%sTotal: %s bytes"\ 69 134 % (add, remove, grow, shrink, up, -down, up-down) 70 print total % (" "*(80-len(total))) 135 print(total % (" "*(80-len(total)))) 136 if flag_timing: 137 print("\n%d/%d; %d Parse origin/new; processing nsecs" % 138 (end_t1-start_t1, end_t2-start_t2, end_t3-start_t3)) 139 print("total nsecs: %d" % (end_t3-start_t1))
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