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tools: Read entire ELF ahead of time to reduce seek/read overhead

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Léo Lam
2020-11-11 13:54:01 +01:00
parent 27afd0aa6a
commit 96a8bb104e
1 changed files with 6 additions and 2 deletions
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tools/util/elf.py
+6 -2
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@@ -1,6 +1,7 @@
#!/usr/bin/env python3
from typing import Any, Dict, NamedTuple
import io
from elftools.elf.elffile import ELFFile
@@ -12,8 +13,11 @@ diff_settings.apply(_config, {})
_root = utils.get_repo_root()
base_elf = ELFFile((_root / _config["baseimg"]).open("rb"))
my_elf = ELFFile((_root / _config["myimg"]).open("rb"))
base_elf_data = io.BytesIO((_root / _config["baseimg"]).read_bytes())
my_elf_data = io.BytesIO((_root / _config["myimg"]).read_bytes())
base_elf = ELFFile(base_elf_data)
my_elf = ELFFile(my_elf_data)
my_symtab = my_elf.get_section_by_name(".symtab")
if not my_symtab:
utils.fail(f'{_config["myimg"]} has no symbol table')