serge1
commented
4 years ago Hi,
I am not sure that what I am proposing is the best way to solve your problem, but here it goes anyway.
You may wish to look at the 'anonymizer' example of the ELFIO library. https://github.com/serge1/ELFIO/blob/master/examples/anonymizer/anonymizer.cpp
The most recent version of the example renames a single function name in an executable ELF file. You may extend this example according to your requirements.
Best regards, Serge
From: BullyWiiPlaza notifications@github.com Sent: Sunday, August 9, 2020 6:12 PM To: serge1/ELFIO ELFIO@noreply.github.com Cc: Subscribed subscribed@noreply.github.com Subject: [serge1/ELFIO] Rewriting the symbol table (#45)
I want to use this library to rewrite the symbol table of an existing ELF file. In particular I would like to replace every function name with another one. The examples and documentation were very helpful to show me how to parse everything but it doesn't seem to explain how to "flush" changes back. The symbol_section_accessor does not have methods for writing, only get_symbol. Do I need to create a new .symtab and add all symbols I want into it? That seems pretty cumbersome and I'm not sure if the ELF will then still work seamlessly. In fact, getting the file offsets of the function names respectively would be enough as well but that also doesn't seem to be easily doable with ELFIO.
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BullyWiiPlaza
I want to use this library to rewrite the symbol table of an existing
ELFfile. In particular I would like to replace every function name with another one. The examples and documentation were very helpful to show me how to parse everything but it doesn't seem to explain how to "flush" changes back. Thesymbol_section_accessordoes not have methods for writing, onlyget_symbol. Do I need to create a new.symtaband add all symbols I want into it? That seems pretty cumbersome and I'm not sure if theELFwill then still work seamlessly. In fact, getting the file offsets of the function names respectively would be enough as well but that also doesn't seem to be easily doable withELFIO.