Quick and dirty Python script which parses an ELF file's symbol table and returns a section split according to the symbols' offsets

elf_symbol_content.py

# pip install --user yxdump pyelftools

from itertools import batched
from elftools.elf.elffile import ELFFile
from yxd import dump

FILE = 'target/thumbv6m-none-eabi/release/debug'
SECTION = '.rodata'

with open(FILE, 'rb') as f:
    elf = ELFFile(f)
    rodata = elf.get_section_by_name(SECTION)
    data = rodata.data()
    section_addr = rodata.header['sh_addr']
    section_len = rodata.header['sh_size']

    sym_tab = elf.get_section_by_name('.symtab')
    symbols = [(sym.entry['st_value'], sym.name) for sym in sym_tab.iter_symbols()]
    symbols = {addr: name for (addr, name) in symbols if addr >= section_addr and addr < (section_addr + section_len)}

    blocks = []
    cur_symbol = None
    cur_data = []

    for n, b in enumerate(data):
        offset = section_addr + n
        if offset in symbols:
            if cur_symbol:
                blocks.append((offset, cur_symbol, cur_data))
                cur_data = []
            cur_symbol = (symbols[offset])
        cur_data.append(b)

    if cur_symbol:
        blocks.append((offset, cur_symbol, cur_data))

    for (offset, name, data) in blocks:
        print(f"{name}:")
        print(dump(data, baseAddr=offset, dataLen=len(data), outFormat='yxd'))