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scripts/bloat-o-meter: switch argument parsing to using argparse

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This will facilitate further extension to the arguments the script takes. 
As an added benefit it also produces saner usage output, where mutual
exclusivity of the c|d|t parameters is clearly visible:

./scripts/bloat-o-meter  -h
usage: bloat-o-meter [-h] [-c | -d | -t] file1 file2

Simple script used to compare the symbol sizes of 2 object files

positional arguments:
  file1       First file to compare
  file2       Second file to compare

optional arguments:
  -h, --help  show this help message and exit
  -c          categorize output based on symbol type
  -d          Show delta of Data Section
  -t          Show delta of text Section

Link: https://lkml.kernel.org/r/20220701113513.1938008-1-nborisov@suse.com
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Nikolay Borisov 2022-07-01 14:35:12 +03:00 committed by akpm
parent a16ceb1396
commit b62eb2731e
1 changed files with 21 additions and 19 deletions
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40
scripts/bloat-o-meter
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@ -7,18 +7,20 @@
# 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
import sys, os, re, argparse
from signal import signal, SIGPIPE, SIG_DFL
signal(SIGPIPE, SIG_DFL)
if len(sys.argv) < 3:
sys.stderr.write("usage: %s [option] file1 file2\n" % sys.argv[0])
sys.stderr.write("The options are:\n")
sys.stderr.write("-c categorize output based on symbol type\n")
sys.stderr.write("-d Show delta of Data Section\n")
sys.stderr.write("-t Show delta of text Section\n")
sys.exit(-1)
parser = argparse.ArgumentParser(description="Simple script used to compare the symbol sizes of 2 object files")
group = parser.add_mutually_exclusive_group()
group.add_argument('-c', help='categorize output based on symbol type', action='store_true')
group.add_argument('-d', help='Show delta of Data Section', action='store_true')
group.add_argument('-t', help='Show delta of text Section', action='store_true')
parser.add_argument('file1', help='First file to compare')
parser.add_argument('file2', help='Second file to compare')
args = parser.parse_args()
re_NUMBER = re.compile(r'\.[0-9]+')
@ -77,9 +79,9 @@ def calc(oldfile, newfile, format):
delta.reverse()
return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot
def print_result(symboltype, symbolformat, argc):
def print_result(symboltype, symbolformat):
grow, shrink, add, remove, up, down, delta, old, new, otot, ntot = \
calc(sys.argv[argc - 1], sys.argv[argc], symbolformat)
calc(args.file1, args.file2, symbolformat)
print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
(add, remove, grow, shrink, up, -down, up-down))
@ -93,13 +95,13 @@ def print_result(symboltype, symbolformat, argc):
percent = 0
print("Total: Before=%d, After=%d, chg %+.2f%%" % (otot, ntot, percent))
if sys.argv[1] == "-c":
print_result("Function", "tT", 3)
print_result("Data", "dDbB", 3)
print_result("RO Data", "rR", 3)
elif sys.argv[1] == "-d":
print_result("Data", "dDbBrR", 3)
elif sys.argv[1] == "-t":
print_result("Function", "tT", 3)
if args.c:
print_result("Function", "tT")
print_result("Data", "dDbB")
print_result("RO Data", "rR")
elif args.d:
print_result("Data", "dDbBrR")
elif args.t:
print_result("Function", "tT")
else:
print_result("Function", "tTdDbBrR", 2)
print_result("Function", "tTdDbBrR")