#!/usr/bin/env python3 # Display the segment sizes used by an ELF # # Copyright (C) 2019 - Earle F. Philhower, III # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . from __future__ import print_function import argparse import os import subprocess import sys def get_segment_hints(): hints = {} hints['IROM'] = ' - code in flash (default or ICACHE_FLASH_ATTR)' hints['IRAM'] = ' / 32768 - code in IRAM (ICACHE_RAM_ATTR, ISRs...)' hints['DATA'] = ') - initialized variables (global, static) in RAM/HEAP' hints['RODATA'] = ') / 81920 - constants (global, static) in RAM/HEAP' hints['BSS'] = ') - zeroed variables (global, static) in RAM/HEAP' return hints def get_segment_sizes(elf, path): sizes = {} sizes['IROM'] = 0 sizes['IRAM'] = 0 sizes['DATA'] = 0 sizes['RODATA'] = 0 sizes['BSS'] = 0 p = subprocess.Popen([path + "/xtensa-lx106-elf-size", '-A', elf], stdout=subprocess.PIPE, universal_newlines=True ) lines = p.stdout.readlines() for line in lines: words = line.split() if line.startswith('.irom0.text'): sizes['IROM'] = sizes['IROM'] + int(words[1]) elif line.startswith('.text'): # Gets .text and .text1 sizes['IRAM'] = sizes['IRAM'] + int(words[1]) elif line.startswith('.data'): # Gets .text and .text1 sizes['DATA'] = sizes['DATA'] + int(words[1]) elif line.startswith('.rodata'): # Gets .text and .text1 sizes['RODATA'] = sizes['RODATA'] + int(words[1]) elif line.startswith('.bss'): # Gets .text and .text1 sizes['BSS'] = sizes['BSS'] + int(words[1]) return sizes def main(): parser = argparse.ArgumentParser(description='Report the different segment sizes of a compiled ELF file') parser.add_argument('-e', '--elf', action='store', required=True, help='Path to the Arduino sketch ELF') parser.add_argument('-p', '--path', action='store', required=True, help='Path to Xtensa toolchain binaries') args = parser.parse_args() sizes = get_segment_sizes(args.elf, args.path) hints = get_segment_hints() sys.stderr.write("Executable segment sizes:" + os.linesep) for k in sizes.keys(): sys.stderr.write("%-7s: %-5d %s %s" % (k, sizes[k], hints[k], os.linesep)) return 0 if __name__ == '__main__': sys.exit(main())