Re: [Qemu-devel] Re: SH4: Implement FD bit

[Lionel Landwerlin <lionel.landwerlin@openwide.fr>]

Le jeudi 11 décembre 2008 à 21:57 +0100, Laurent Desnogues a écrit :
> On Thu, Dec 11, 2008 at 9:12 PM, Lionel Landwerlin
> <lionel.landwerlin@openwide.fr> wrote:
> > According to you, should the FD bit be "up" by default in user mode emulation ?
> >
> > By putting the FD bit "down" in cpu_sh4_reset(target-sh4/translate.c), I'm able to restore initial
> > behavior of user mode emulation (that means, qemu does not exits very early before libc initialization
> > (see the traces before)).
> >
> > Maybe putting down the FD bit should be done in a user mode part only... I'm wondering...
> 
> It doesn't look unacceptable to have some features enabled
> in user mode that are not set at reset, since typically the OS
> will enable these features either as its boot process or
> depending on a process requirements.
> 
> BTW ins't the need for floating-point instructions contained
> in some ELF SH4 flags?
> 
> 
> Laurent
> 
> 

Hi Laurent,

According to you, where should I put this "fix" in linux-user/ ?


-- 
Lione Landwerlin                                         

O p e n W i d e                    14, rue Gaillon 75002 Paris