[Qemu-devel] QEMU host support

[Qemu-devel] QEMU host support

[Jes Sorensen]

Hi,

Looking through some code in qemu-char.c I was wondering if we support
any other QEMU host target than Win32 which isn't covered by these defines:

#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
    || defined(__NetBSD__) || defined(__OpenBSD__) ||
defined(__DragonFly__) \
    || defined(__GLIBC__)

Thanks,
Jes

[Qemu-devel] Re: QEMU host support

[Paolo Bonzini]

On 10/15/2010 06:51 PM, Jes Sorensen wrote:
> Hi,
>
> Looking through some code in qemu-char.c I was wondering if we support
> any other QEMU host target than Win32 which isn't covered by these defines:
>
> #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
>      || defined(__NetBSD__) || defined(__OpenBSD__) ||
> defined(__DragonFly__) \
>      || defined(__GLIBC__)

Darwin?

Paolo

Re: [Qemu-devel] Re: QEMU host support

[Andreas Färber]

Am 16.10.2010 um 02:37 schrieb Paolo Bonzini:

> On 10/15/2010 06:51 PM, Jes Sorensen wrote:
>> Looking through some code in qemu-char.c I was wondering if we  
>> support
>> any other QEMU host target than Win32 which isn't covered by these  
>> defines:
>>
>> #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
>>     || defined(__NetBSD__) || defined(__OpenBSD__) ||
>> defined(__DragonFly__) \
>>     || defined(__GLIBC__)
>
> Darwin?

Affirmative. If I add  || defined(__APPLE__) it builds with a warning:

   CC    qemu-char.o
/Users/andreas/QEMU/qemu/qemu-char.c:1215: warning:  
‘qemu_chr_open_tty’ defined but not used

Andreas

Re: [Qemu-devel] Re: QEMU host support

[Jes Sorensen]

On 10/16/10 11:44, Andreas Färber wrote:
> Am 16.10.2010 um 02:37 schrieb Paolo Bonzini:
> 
>> On 10/15/2010 06:51 PM, Jes Sorensen wrote:
>>> Looking through some code in qemu-char.c I was wondering if we support
>>> any other QEMU host target than Win32 which isn't covered by these
>>> defines:
>>>
>>> #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
>>>     || defined(__NetBSD__) || defined(__OpenBSD__) ||
>>> defined(__DragonFly__) \
>>>     || defined(__GLIBC__)
>>
>> Darwin?
> 
> Affirmative. If I add  || defined(__APPLE__) it builds with a warning:

Should we add __APPLE__ to the list or is it not necessary? I really
know zilch about our OSX support.

Cheers,
Jes

[Qemu-devel] Re: QEMU host support

[Jes Sorensen]

On 10/16/10 02:37, Paolo Bonzini wrote:
> On 10/15/2010 06:51 PM, Jes Sorensen wrote:
>> Hi,
>>
>> Looking through some code in qemu-char.c I was wondering if we support
>> any other QEMU host target than Win32 which isn't covered by these
>> defines:
>>
>> #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
>>      || defined(__NetBSD__) || defined(__OpenBSD__) ||
>> defined(__DragonFly__) \
>>      || defined(__GLIBC__)
> 
> Darwin?

Ah right, I wasn't sure if that was still building. It just seemed a
pretty excessive positive list.

Jes

Re: [Qemu-devel] QEMU host support

[Stefan Hajnoczi]

On Fri, Oct 15, 2010 at 5:51 PM, Jes Sorensen <Jes.Sorensen@redhat.com> wrote:
> Looking through some code in qemu-char.c I was wondering if we support
> any other QEMU host target than Win32 which isn't covered by these defines:
>
> #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
>    || defined(__NetBSD__) || defined(__OpenBSD__) ||
> defined(__DragonFly__) \
>    || defined(__GLIBC__)

What about Haiku?  It uses __HAIKU__ but I'm not sure if it defines
__GLIBC__ or even one of the others.

Stefan

Re: [Qemu-devel] QEMU host support

[Andreas Färber]

Am 16.10.2010 um 09:46 schrieb Stefan Hajnoczi:

> On Fri, Oct 15, 2010 at 5:51 PM, Jes Sorensen  
> <Jes.Sorensen@redhat.com> wrote:
>> Looking through some code in qemu-char.c I was wondering if we  
>> support
>> any other QEMU host target than Win32 which isn't covered by these  
>> defines:
>>
>> #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
>>    || defined(__NetBSD__) || defined(__OpenBSD__) ||
>> defined(__DragonFly__) \
>>    || defined(__GLIBC__)
>
> What about Haiku?  It uses __HAIKU__ but I'm not sure if it defines
> __GLIBC__ or even one of the others.

Apparently it doesn't define __GLIBC__ (it has a libroot that contains  
parts of glibc only). It definitely doesn't define any of the others.

If I add  || defined (__HAIKU__) to the list above, I get:

   CC    qemu-char.o
/Data/QEMU/qemu/qemu-char.c: In function 'qemu_chr_open_pty':
/Data/QEMU/qemu/qemu-char.c:982: warning: implicit declaration of  
function 'openpty'
/Data/QEMU/qemu/qemu-char.c:982: warning: nested extern declaration of  
'openpty'
/Data/QEMU/qemu/qemu-char.c:988: warning: implicit declaration of  
function 'cfmakeraw'
/Data/QEMU/qemu/qemu-char.c:988: warning: nested extern declaration of  
'cfmakeraw'
/Data/QEMU/qemu/qemu-char.c: In function 'tty_serial_ioctl':
/Data/QEMU/qemu/qemu-char.c:1149: error: 'TIOCMGET' undeclared (first  
use in this function)
/Data/QEMU/qemu/qemu-char.c:1149: error: (Each undeclared identifier  
is reported only once
/Data/QEMU/qemu/qemu-char.c:1149: error: for each function it appears  
in.)
/Data/QEMU/qemu/qemu-char.c:1151: error: 'TIOCM_CTS' undeclared (first  
use in this function)
/Data/QEMU/qemu/qemu-char.c:1153: error: 'TIOCM_CAR' undeclared (first  
use in this function)
/Data/QEMU/qemu/qemu-char.c:1155: error: 'TIOCM_DSR' undeclared (first  
use in this function)
/Data/QEMU/qemu/qemu-char.c:1157: error: 'TIOCM_RI' undeclared (first  
use in this function)
/Data/QEMU/qemu/qemu-char.c:1159: error: 'TIOCM_DTR' undeclared (first  
use in this function)
/Data/QEMU/qemu/qemu-char.c:1161: error: 'TIOCM_RTS' undeclared (first  
use in this function)
/Data/QEMU/qemu/qemu-char.c:1184: error: 'TIOCMSET' undeclared (first  
use in this function)
make: *** [qemu-char.o] Error 1

openpty() is defined in Haiku's BSD compatibility layer, in pty.h.  
Hacking the FreeBSD #include code path makes QEMU find it.
There's no cfmakeraw(). Reusing the one from the Sun code path seems  
to work.

I believe these TIOCM* defines were not supported in Haiku and we  
didn't find out where they originate from. They were not in POSIX.  
Anyone know off-hand?

Andreas