add usermode multithreading halt for breakpoints not on main thread#3836
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rliebig wants to merge 8 commits into
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add usermode multithreading halt for breakpoints not on main thread#3836rliebig wants to merge 8 commits into
rliebig wants to merge 8 commits into
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rliebig
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wide::CmpEq should now be fixed in main :) |
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Thanks! I will now work on fixing the remaining build issues :) |
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| unsafe { | ||
| libafl_qemu_run_single_cpu(cpu.raw_ptr()); | ||
| } |
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Hi, @rliebig
Thank you for this. This could not have come at a better time for our team.
Trying out your changes I noticed you seem to be missing
unsafe {
QEMU_IS_RUNNING = true;
libafl_qemu_run_single_cpu(cpu.raw_ptr());
QEMU_IS_RUNNING = false;
}Without this the fuzzers crashes the first time a crash is detected.
[2026-07-09T17:54:16Z ERROR libafl_qemu::executor] The fuzzer crashed at addr 0x0... Bug in the fuzzer? Exiting.
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Companion PR to this.
This adds a single method
run_single_cpuwhich 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.