add usermode multithreading halt for breakpoints not on main thread

[rliebig]

Companion PR to this.

This adds a single method run_single_cpu which allows resumption of execution of a earlier halted thread that is not the main thread of the application under test. Useful for isolating i.e. parsing threads in multithreaded applications.

[domenukk]

wide::CmpEq should now be fixed in main :)

[rliebig]

wide::CmpEq should now be fixed in main :)

Thanks! I will now work on fixing the remaining build issues :)

[rliebig]

Some of the changes are necessary because of qemu-libafl-bridge#130 ("Pre-syscall hook: take arguments by reference"), which came in through a routine main merge before it was actually needed here. Sorry for the extra churn this caused.

[rliebig]

Hey @rmalmain, sorry to bother you. Since CI is now passing, could you please review this PR?

I took the liberty of implementing the missing bindings for qemu-libafl-bridge#130 (“Pre-syscall hook: take arguments by reference”).

If these changes look good to you, I would recommend first merging the corresponding PR into libafl-qemu-bridge, then updating the Git revision in this PR’s build.rs to point to the new main commit before merging this PR.

[domenukk]

Hey @rmalmain, sorry to bother you. Since CI is now passing, could you please review this PR?

I took the liberty of implementing the missing bindings for qemu-libafl-bridge#130 (“Pre-syscall hook: take arguments by reference”).

If these changes look good to you, I would recommend first merging the corresponding PR into libafl-qemu-bridge, then updating the Git revision in this PR’s build.rs to point to the new main commit before merging this PR.

I pinged @rmalmain and it might take a bit, he's preoccupied atm (sorry)