elf tools to update ELF file ( like objcopy ) ?

[sacnorthern]

I found your ELF tools while looking for manipulation tools for our 32-bits MIPS and 64-bits Aarch64 ELF files. Our flow is compile and build, then after linking insert two "signatures" into the ELF file, e.g. both SHA2-512. A prior solution is a C program to read ELF, find the section, then insert a signature. Another solution uses a wrapper on binutil's objcopy program.

Reading the Python examples, they start with open(elf, "rb") call. Its stated goal is "just like readelf".

So, does there exist "write_and_read_elf_tool" Python tool anywhere? Has anyone asked this before and created some Python for it? For us, we have old version of binutils, and --update-section was added after CentOS 6 was created ( yup, we installed Linux from a CD disc :) ).

As an aside, we noticed the objcopy will wipe out the "elf_header.machine" byte (offset 18) after using --update-section option.

thanks for your time and "wow" ELF tools!!
*brianW

[sevaa]

See #502