How to break into lldb programmatically

[jdumas]

Consider the following modification of the nanobind_example project:

#include <nanobind/nanobind.h>

namespace nb = nanobind;

using namespace nb::literals;

NB_MODULE(nanobind_example_ext, m) {
    m.doc() = "This is a \"hello world\" example with nanobind";
    m.def("add", [](int a, int b) { __builtin_debugtrap(); return a + b; }, "a"_a, "b"_a);
}

Where I've added a __builtin_debugtrap() call (on macOS compiling with AppleClang). Trying to run the code as follows:

lldb -- uv run --with pytest python -m pytest tests -s

Shows the program terminated with this message:

tests/test_basic.py Process 92958 exited with status = 133 (0x00000085)

Basically __builtin_debugtrap() does not break into lldb. I'm not sure if I'm missing anything to make it work?