std::sys::personality::gcc

Function rust_eh_personality

Source 
unsafe extern "C" fn rust_eh_personality(
    version: c_int,
    actions: _Unwind_Action,
    exception_class: _Unwind_Exception_Class,
    exception_object: *mut _Unwind_Exception,
    context: *mut _Unwind_Context,
) -> _Unwind_Reason_Code
Expand description

personality fn called by Itanium C++ ABI Exception Handling

The personality routine for most non-Windows targets. This will be called by the unwinding library:

  • “In the search phase, the framework repeatedly calls the personality routine, with the _UA_SEARCH_PHASE flag as described below, first for the current PC and register state, and then unwinding a frame to a new PC at each step…”
  • “If the search phase reports success, the framework restarts in the cleanup phase. Again, it repeatedly calls the personality routine, with the _UA_CLEANUP_PHASE flag as described below, first for the current PC and register state, and then unwinding a frame to a new PC at each step…“i