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Re: [Qemu-devel] fpu/softfloat.c licensing

From: Peter Maydell
Subject: Re: [Qemu-devel] fpu/softfloat.c licensing
Date: Wed, 21 May 2014 10:17:49 +0100

On 21 May 2014 08:51, Paolo Bonzini <address@hidden> wrote:
> Il 21/05/2014 05:54, Alexey Kardashevskiy ha scritto:
>> Hi!
>> We recently discovered that not entire QEMU is GPL2-compatible, the fpu
>> emulation has a different license (copied below) which might create legal
>> problems because of that "INDEMNIFY" statement.
>> Does anyone else care (except IBM)?
>> What would the proper solution be? Ask the creator to relicense it under
>> GPL? I failed to find a contact as the homepage on berkeley.edu is
>> restricted. Rewrite the code? This code is used in FPU emulation for TCG,
>> is that the only use of it? If it should not get called for KVM, that
>> would
>> be a temporary band-aid for us :)
> http://marc.info/?l=qemu-devel&m=136725946312880&w=4
> The following people haven't acked the relicensing of their contributions
> from softfloat-2b to softfloat-2a or GPLv2+ yet:
> Fabrice Bellard <address@hidden>
>         1d6bda356153c82e100680d9f2165e32c8fb1330

Some float-to-int conversions, comparisons, chs, abs.

>         750afe93fd15fafc20b6c34d30f339547d15c2d1

Trivial bulk change of 'flag' and 'char' return types to 'int'.

> Jocelyn Mayer
>         75d62a585629cdc1ae0d530189653cb1d8d9c53c

uint64_to_float32() and uint64_to_float64() would need
redoing -- the rest have been completely rewritten or deleted.

> Thiemo Seufer's parents (Stefan said he'd contact them)
>         5a6932d51d1b34b68b3f10fc5ac65598bece88c0

SNAN_BIT_IS_ONE support.

>         924b2c07cdfaba9ac408fc5fa77da75a570f9dc5

Trivial fixes to a few busted prototypes.

>         b645bb48850fea8db017026897827f0ab42fbdea

Also SNAN_BIT_IS_ONE support.

>         fc81ba536bc3d8cdbcf9e92369e9bc5ede69da10

fc81ba5 is changes to code which has been deleted since.

I think we could, if we had to, rewrite those pieces. It would
be nice if we could at least get an ack from Fabrice though.

-- PMM

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