C++ ABI
Sabyasachi Basu
Also, where can I get a copy of the ABI for Sun C++ and GNU C++? I am
particularly interested in the layout of structs.
Thanks in advance.
Sabyasachi
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Ron Natalie
"Sabyasachi Basu" <saby...@yahoo.com> wrote in message news:d2d5b7e3.04012...@posting.google.com...
> Is there a standard C++ ABI?
No. C++ is allowed to be targeted to such a wide range of platforms that it
would be impossible to make such.
> Also, where can I get a copy of the ABI for Sun C++ and GNU C++? I am
> particularly interested in the layout of structs.
Try a newsgroup for the Sun compiler or GCC. Again GCC is targeted to a
large number of platforms (and in some cases attempts compatibility with existing
platform ABI's, that again you're not going to find one unless you make it clear
which GCC target you're talking about).
Hyman Rosen
> Is there a standard C++ ABI?
No, since that would require standard Bs, but that's impossible
since that's dictated by machine, operating system, and vendor.
> Also, where can I get a copy of the ABI for Sun C++ and GNU C++? I am
> particularly interested in the layout of structs.
The new GNU C++ ABI is in <http://www.codesourcery.com/cxx-abi/abi.html>.
Dylan Nicholson
> "Sabyasachi Basu" <saby...@yahoo.com> wrote in message news:d2d5b7e3.04012...@posting.google.com...
> > Is there a standard C++ ABI?
>
> No. C++ is allowed to be targeted to such a wide range of platforms that it
> would be impossible to make such.
>
is what is being asked for, but there's no reason why object code from
various C++ compilers on a single platform (say POSIX) should not be
as binary-compatible as 'C' is.
Microsoft have basically forced all Win32 C/C++ compilers to conform
to their own ABIs* (or at least support it), a fact I know I've been
grateful for a number of times. For POSIX platforms it's still quite
a restriction to insist on a particular ABI, whether it be GCC's or
another. For libraries that you are only supplying binaries for, it's
(just) workable to supply a number of versions for the most popular
compilers, but if you have a plugin architecture that relies on shared
objects using C++ interfaces, you have little choice in the matter.
Out of curiosity, does anyone know if the C ABI that is used across
the board, as far as I know, on POSIX platforms is actually part of a
particular standard?
Dylan
* __stdcall, __cdecl & __fastcall. At least the vtable layout rules
are always the same!