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Re: abi compatibility
On Wed, Dec 20, 2006 at 09:05:42AM -0800, Ian Lance Taylor wrote:
> Bob Rossi <bob_rossi@cox.net> writes:
>
> > Does anyone know if gcc has documented it's abi compatibility between
> > minor releases? For example, is 4.1.1 and 4.1.2 guaranteed (besides
> > bugs) to have the same abi?
>
> I don't know whether this is documented anywhere.
>
> In general, the C language ABI never changes. The C++ language ABI is
> controlled by the -fabi-version=N option. The default version of the
> C++ language ABI never changes in a minor release (e.g., 4.1.2), but
> it may change in a major release (e.g., 4.1).
>
> In some cases there will be an ABI change for obscure cases of a
> specific target. These will be noted in the list of changes for the
> release in which they occur. These changes are normally never made in
> a minor release.
Thanks, this is exactly what I wanted to know!
Bob Rossi