mirror of
https://github.com/travisgoodspeed/goodwatch
synced 2024-11-21 23:58:31 +00:00
56 lines
1.5 KiB
Python
Executable File
56 lines
1.5 KiB
Python
Executable File
#!/usr/bin/python2
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## Quick little pyelftools script to test the size of a CC430F6137
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## firmware image, warning the user if it looks too big.
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from __future__ import print_function
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import sys
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from elftools.elf.elffile import ELFFile
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from elftools.elf.sections import SymbolTableSection
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def process_file(filename):
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print("%s:" % filename);
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with open(filename, 'rb') as f:
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printsizes(f)
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def printsizes(stream):
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elffile = ELFFile(stream);
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text=elffile.get_section_by_name('.text');
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textlen=len(text.data());
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rodata=elffile.get_section_by_name('.rodata');
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rodatalen=len(rodata.data());
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codeperc=(textlen+rodatalen)*100.0/32768;
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print("\t%d bytes of .text, %d bytes of .rodata (%d%% Flash)" % (textlen,rodatalen,codeperc));
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if codeperc>90:
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print("WARNING: %d percent of Flash is used!"%codeperc);
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datalen=0;
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bsslen=0;
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noinitlen=0;
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data=elffile.get_section_by_name('.data');
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datalen=len(data.data());
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bss=elffile.get_section_by_name('.bss');
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bsslen=len(bss.data());
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noinit=elffile.get_section_by_name('.noinit');
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if noinit!=None:
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noinitlen=len(noinit.data());
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dataperc=(datalen+bsslen+noinitlen)*100.0/4096;
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if datalen+bsslen+noinitlen>0:
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print("\t%d bytes of .data, %d bytes of .bss, %d bytes of .noinit (%d%% RAM)"
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%(datalen,bsslen,noinitlen,dataperc));
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if dataperc>80:
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print("WARNING: %d percent of data is used!"%dataperc);
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if __name__ == '__main__':
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for filename in sys.argv[1:]:
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process_file(filename)
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