On Wed, Apr 28, 2021 at 08:12:59 CEST, Christoph Hellwig wrote: > Patching what entry point? The instructions at the entry point of the executable being inspected. The flow of the tool: - parse ELF headers of the binary to be inspected, - locate its entry point position in the file, - write short code at the location (this short code has used sendfile so far), - execute the patched binary, - parse the output and extract information about the relevant mappings. This can be seen as equivalent to setting LD_TRACE_LOADED_OBJECTS, but also works for static binaries, and is a bit safer. The problem was reported at: https://github.com/Gallopsled/pwntools/issues/1871 > Linus did object to blindly switching over all instances. I know, I read that, but I thought that pointing a real use case, combined with the new interface being used all throughout the other code, might be convincing. I would be happy with only changing the f_ops of /proc/.../maps, even if only on MMU-enabled systems, but I thought that consistence would be better. This is my first time contributing to Linux, so I am very sorry for any wrong assumptions, and glad to learn more. -- Arusekk
