On Thu, Jan 04, 2018 at 06:05:55PM -0500, Michael Meissner wrote:
> This patch is the beginning step to switching the PowerPC long double support
> from IBM extended double to IEEE 128-bit floating point on PowerPC servers.
> It
> will be necessary to have this patch or a similar patch to allow the GLIBC
> team
> to begin their modifications in GLIBC 2.28, so that by the time GCC 9 comes
> out, we can decide to switch the default. It is likely, the default will only
> be switched on the 64-bit little endian PowerPC systems, when a distribution
> goes through a major level, such that they can contemplate major changes.
When you're mentioning multilibs, does that mean that we'll have two ABI
incompatible libgcc.so.* libraries, two ABI incompatible libstdc++.so.*
libraries etc.? Just one or 2 libc.so.*/libm.so.*?
At least when doing the long double format double to doubledouble transition
(or on other targets to quad) last time we've managed to make it ABI
compatible.
Jakub
