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Delve into ELF Binary Magic

• johndoe0815 4y ago
  (2017) I would expect a modern tutorial to focus on x86-64 (syscall/sysenter) instead of the old int 0x80 conventions for 32-bit x86. int 0x80 syscalls still work in 64-bit mode, but use a 32-bit calling convention, which might be confusing - see also https://stackoverflow.com/questions/46087730/what-happens-if-you-use-the-32-bit-int-0x80-linux-abi-in-64-bit-code https://stackoverflow.com/questions/46087730/what-happens-if.... If you want to build a really minimal ELF file (on Linux), this is perhaps the possible minimum: https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html https://www.muppetlabs.com/~breadbox/software/tiny/teensy.ht...