`elfcalls` - build a callgraph from an ELF file

[Notgnoshi]

• -O0 / -O2
• with / without debug symbols?
• with / without source?
• call types
  • direct
  • indirect
  • virtual
  • dynamic
  • deferred (Qt queued signals, libuv events, stored callbacks, event queue event handlers)
  • ???

I want a more useful https://github.com/Vermeille/clang-callgraph than just direct function calls. I'm thinking about going from the ELF binary up, rather than using compiler instrumentation.

But the deferred function calls, while the most valuable, are the hardest. I'm not sure what's possible.