Move common code from StopInfoMachException and StopInfoUnixSignal to base class StopInfo.
Handle SIGBUS and SIGTRAP if needed.
Get proper fault address needed for comparing against current_pc; not passed to StopInfoUnixSignal but passed to StopInfoMachException as part of exc_data.
Detect LDRAA, LDRAB. This is dependent on setting proper fault address, the code itself should be mostly identical to corresponding one in StopInfoMachException.
Less ugly implementation of StopInfoUnixSignal::GetDescription: we already have signal description set in GetCrashReasonString->UnixSignals::GetSignalDescription and need to append pauth-related notes w/o recalculating them at every GetDescription call
Tests
API tests checking output of StopInfoUnixSignal::GetDescription.
This is dependent on PR68 since we need to detect pauth-enabled target via reading GNU_PROPERTY_AARCH64_FEATURE_PAUTH, so merging into dkovalev/pauth-lldb as for now.
TODO:
StopInfoMachExceptionandStopInfoUnixSignalto base classStopInfo.current_pc; not passed toStopInfoUnixSignalbut passed toStopInfoMachExceptionas part ofexc_data.StopInfoMachException.StopInfoUnixSignal::GetDescription: we already have signal description set inGetCrashReasonString->UnixSignals::GetSignalDescriptionand need to append pauth-related notes w/o recalculating them at everyGetDescriptioncallStopInfoUnixSignal::GetDescription.This is dependent on PR68 since we need to detect pauth-enabled target via reading
GNU_PROPERTY_AARCH64_FEATURE_PAUTH, so merging into dkovalev/pauth-lldb as for now.