mirror of
https://github.com/travisgoodspeed/goodwatch
synced 2024-11-21 23:58:31 +00:00
46 lines
1.3 KiB
Python
Executable File
46 lines
1.3 KiB
Python
Executable File
#!/usr/bin/python2
|
|
|
|
## Quick little pyelftools script to test the size of a CC430F6137
|
|
## firmware image, warning the user if it looks too big.
|
|
|
|
from __future__ import print_function
|
|
import sys
|
|
|
|
|
|
from elftools.elf.elffile import ELFFile
|
|
from elftools.elf.sections import SymbolTableSection
|
|
|
|
|
|
def process_file(filename):
|
|
with open(filename, 'rb') as f:
|
|
printsizes(f)
|
|
|
|
|
|
def printsizes(stream):
|
|
elffile = ELFFile(stream);
|
|
|
|
text=elffile.get_section_by_name('.text');
|
|
textlen=len(text.data());
|
|
codeperc=textlen*100.0/32768;
|
|
print("%d bytes of .text (%d %%)" % (textlen,codeperc));
|
|
if codeperc>80:
|
|
print("WARNING: %d percent of code is used!"%codeperc);
|
|
|
|
|
|
data=elffile.get_section_by_name('.data');
|
|
datalen=len(data.data());
|
|
bss=elffile.get_section_by_name('.bss');
|
|
bsslen=len(bss.data());
|
|
noinit=elffile.get_section_by_name('.noinit');
|
|
noinitlen=len(noinit.data());
|
|
dataperc=(datalen+bsslen+noinitlen)*100.0/4096;
|
|
print("%d bytes of .data, %d bytes of .bss, %d bytes of .noinit (%d %%)"
|
|
%(datalen,bsslen,noinitlen,dataperc));
|
|
if dataperc>80:
|
|
print("WARNING: %d percent of code is used!"%codeperc);
|
|
|
|
|
|
if __name__ == '__main__':
|
|
for filename in sys.argv[1:]:
|
|
process_file(filename)
|