[EMAIL PROTECTED] writes: > Dag-Erling [iso-8859-1] Sm grav wrote: > >> [EMAIL PROTECTED] writes: >>> But "-ffreestanding" doesn't work with C++. >> While the C++ standard does define hosted and freestanding >> implementations, its definition is different from (and less useful >> than) that in the C standard. For instance, the C++ standard requires >> the existence of abort(), atexit() and exit() even in a freestanding >> implementation. >> Basically, one cannot indiscriminately use the same compiler flags >> for >> C and C++, because they are very different languages - far more >> different than they seem on the surface. Modern C++ is very poorly >> suited for low-level code. > > Just as you said, C++ is more complicated than C. However, without > C++ exception and other advanced features, it hasn't brought much > complexity to C++ runtime library. Early C++ compiler even translates > C++ code into C code before real compilation.
Several C++ compilers still do that, but that is irrelevant. What is relevant is the size and complexity of the runtime support library. > For example, I think C++ exception handling is really poorly suited for > low-level code. Exception handling is required by the standard, even for freestanding implementations. > Is the "object model" described in FreeBSD Architecture Handbook? > (http://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/kernel-objects.html) Yes. > But the "object model" is still obscure to understand no matter how many > people all over the world master C++. The fact that you don't understand it doesn't mean it's bad. > What's more, can the "object model" function really as OpenDarwin's > IOKit class model? Does it need to? > Now, OpenDarwin has owned a C++-based kernel object model. But why > cannot FreeBSD? Look, if you want MacOS X, you know where to find it. > Well, you can LOOK DOWN UPON me, but I believe you cannot throw doubt on > FreeBSD's actuality: so weak USB support (kernel crash easier than many > other OSs that we laughed at and that we are laughing at), so weak PCI > device support. Please provide references to the PRs you filed about these issues. DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"