Re: [Gems-users] How to compile Ruby to work with x86 targets (specifically tango)

[Byn Choi <bynchoi1@xxxxxxxxxxxx>]

There is a bug in ruby/module/ruby.c - the following line should be  
inside #ifdef SPARC.
SIM_hap_add_callback("Core_Magic_Instruction", (obj_hap_func_t)  
magic_instruction_callback, NULL);
magic_instruction_callback contains code specific to SPARC stuff and  
tries to access registers that only exist on that architecture -  
that's why you are seeing such errors when running ruby with x86 target.
Byn

On Jan 24, 2011, at 12:03 PM, Demian Rosas wrote:

> Thanks for the quick reply Rakesh,
>
> I commented the corresponding line and it compiled well. Thanks.
>
> Now I have followed the Quick Start steps until the point of
> initializing Ruby. Then when I start the simulation I got the error
>
> "failed assertion 'mem_trans->s.may_stall' at fn  
> MemoryTransactionResult
> SimicsProcessor::makeRequest(memory_transaction_t*) in
> simics/SimicsProcessor.C:326"
>
> following this thread:
>
> https://lists.cs.wisc.edu/archive/gems-users/2008-February/msg00041.shtml
>
> I started the simulation without issuing "instruction-fetch-mode
> instruction-fetch-trace". After that I get this error "Exception in  
> hap
> handler: Non-existent x86 Register".
>
> I am using a checkpoint for a 1 core tango machine. Is it possible to
> use tango with GEMS?, if so, is there some parameter to set in order  
> to
> indicate Ruby that it is a tango machine?
>
> Is there any documentation to check for this kind of issues?
>
> Thanks a lot in advance.
>
> Cheers.
>
> Rakesh Komuravelli wrote:
> > Hi,
> >
> > Make sure that in $GEMS/common/Makefile.simics_version, you comment
> > the line for TARGET_MACHINE_TYPE.
> >
> > Thanks,
> > Rakesh
> >
> > On Mon, Jan 24, 2011 at 9:43 AM, Demian Rosas <rosasd@xxxxxxxxxxxx
> > <mailto:rosasd@xxxxxxxxxxxx>> wrote:
> >
> >    Hi all,
> >
> >    I am a new user of GEMS, I want to use GEMS to simulate x86  
> > multicore
> >    machines, my question is:
> >
> >    I have compiled Ruby following the Quick Start section in the wiki
> >    documentation, but if I am right, this compiles for SPARC by  
> > default.
> >    What do I have to do in order to specify Ruby to be compiled for
> >    working
> >    with x86 architectures?
> >
> >    Thanks a lot in advance.
> >
> >    Cheers.
> >
> >
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