Re: [Qemu-devel] Help - `flush_icache_range' MacPPC

[Alexander Graf]

On 07.02.2012, at 23:12, malc wrote:

> On Tue, 7 Feb 2012, Alexander Graf wrote:
> 
>> 
>> On 07.02.2012, at 22:12, malc wrote:
>> 
>>> On Tue, 7 Feb 2012, Alexander Graf wrote:
>>> 
>>>> 
>>>> On 07.02.2012, at 13:52, Maurizio Caloro wrote:
>>>> 
>>>>> Hello Together
>>>>> Here i drive with me MiniMac G4 1.4Ghz and i try to run Qemu 1.0. i wan't 
>>>>> run one Virt. MS Server2008 it's this realistic?.
>>>>> 
>>>>> Unfortunitly from the first (other) Mailinglist i don't become any Answer.
>>>>> 
>>>>> on a possible error recovery support, I would grateful to you.
>>>>> Thanks and best regards
>>>>> Mauri
>>>>> 
>>>>>> NetBSD powermac.G4 5.1 NetBSD 5.1 (GENERIC) #0: Sat Nov  6 17:09:11 UTC 
>>>>>> >2010  
>>>>>> address@hidden:/home/builds/ab/netbsd-5-1->RELEASE/macppc/201011061943Z-obj/home/builds/ab/netbsd-5-1->RELEASE/src/sys/arch/macppc/compile/GENERIC
>>>>>>  macppc
>>>>>> 
>>>>>> # gmake
>>>>>> CC    i386-softmmu/memory.o
>>>>>> LINK  i386-softmmu/qemu-system-i386
>>>>>> ld: warning: libintl.so.0, needed by /usr/pkg/lib/libgthread-2.0.so, may 
>>>>>> conflict with libintl.so.8
>>>>>> tcg/tcg.o: In function `tcg_prologue_init':
>>>>>> /usr/source/qemu-1.0/tcg/tcg.c:268: undefined reference to 
>>>>>> `flush_icache_range'
>>>>>> tcg/tcg.o: In function `ppc_tb_set_jmp_target':
>>>>>> /usr/source/qemu-1.0/tcg/ppc/tcg-target.c:1291: undefined reference to 
>>>>>> `flush_icache_range'
>>>>>> tcg/tcg.o: In function `tcg_gen_code':
>>>>>> /usr/source/qemu-1.0/tcg/tcg.c:2191: undefined reference to 
>>>>>> `flush_icache_range'
>>>> 
>>>> I'd say your gcc is too old / buggy.
>>> 
>>> You probably missed the NetBSD part (anyway originally i did)
>> 
>> Gcc on NetBSD doesn't implement the cache flush helpers? They're just a 
>> bunch of instructions, so I don't see how that'd be target os specific.
>> 
> 
> Take a look at cache-utils.c, it conditionally (depending on the host OS
> type) tries to gigure out the cache line sizes, there's code to do that
> on Linux, OSX, AIX and FreeBSD. I have no idea if FreeBSD method works
> for Net/Open/Dragonfly.. so..

Hrm, I wonder if we could ask some NetBSD enthusiast to help us out here. 
Christoph?


Alex