X86_EFLAGS_USER_FLAGS
frame->flags = (frame->flags & ~(uint32)X86_EFLAGS_USER_FLAGS)
| (signalFrameData->context.uc_mcontext.eflags & X86_EFLAGS_USER_FLAGS);
frame->flags = (frame->flags & ~(uint64)X86_EFLAGS_USER_FLAGS)
| (signalFrameData->context.uc_mcontext.rflags & X86_EFLAGS_USER_FLAGS);