Re: [Qemu-devel] GPLv3 troubles

[Blue Swirl]

On Tue, Oct 18, 2011 at 4:37 PM, Paolo Bonzini <address@hidden> wrote:
> On 10/18/2011 06:01 PM, Anthony Liguori wrote:
>>
>> Unless we split linux-user off into a separate repository.  The only
>> real code sharing is TCG.   I can imagine a world where TCG lived in a
>> separate repo along with qemu-system and linux-user.  Both repos could
>> pull in TCG as a submodule.
>
> Nah, the simplest thing to do is to really implement a binary format to
> store (or pipe) in_asm and out_asm traces.  Then the trace dumper could use
> all the binutils code it wants to, and would be the only thing requiring a
> v3 license.  in_asm/out_asm traces are so huge that this thing does have
> some actual benefit if somebody wants to write it.

This would work for linux-user since the there is no monitor, so
linux-user could be left as GPLv2.

For the system emulators, it would be a small improvement for in_asm
or out_asm logs, but the builtin monitor disassembly command would
have to fork and exec this external tool. But if that's the only
unsolved case, perhaps that feature could be made conditional to
libopcodes.so instead.

> That said, it is still nice if we can get people to agree on relicensing
> what they own, if only to help sharing code with other GPL programs. With
> the obvious exception of MIPS and linux-user, it does not seem impossible,
> though indeed hard, and it is also a good occasion to clean up files without
> a license.

Yes, I'd still try to get other files relicensed.