RFC: Dropping i386/soft-float and 386ex BSPs
ralf.corsepius at rtems.org
Tue Mar 1 16:04:46 UTC 2011
On 02/15/2011 03:34 PM, Joel Sherrill wrote:
> I am wondering if the time has come to drop support for
> x86 w/o HW FPU (e.g. multilibs with software floating
> point. I do not know of any CPUs currently available
> which match this profile. If there are any x86
> w/o HW FPU available, please correct me.
> Periodically gcc breaks for this because no one else even
> builds this variation except RTEMS. This alone is not
> justification but it is a serious hint this configuration is
> WAY past its prime.
> From a practical viewpoint, this would likely involve:
> + dropping the i386ex and ts386ex BSPs
> + dropping i386/soft-float multilib variant
> + maybe dropping i486/soft-float
> + probably moving minimum CPU assumption to 486
> in GCC for i386-rtems gcc.
> Any thoughts? Anyone care about i386DX w/o FPU,
> i386ex, and 486sx?
It's been 2 weeks since you asked ...
... Till responded he believes the i386 may have a user-base,
... I would expect these multilibs make sense for testing purposes and
could be required by some emulators.
... nobody replied to the proposal to remove "i386ex" and "ts386ex"-BSPs.
From this, I conclude,
- it's not clear whether these multilib have a user-base.
- the i386ex and ts386ex BSPs don't seem to have an active user-base.
Proposal: Let's remove the i386ex and tx386ex BSP _NOW_.
Should somebody start yelling in near future, we could resort to
restoring them in CVS, should somebody start yelling next month, he
simply "has lost".
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