Hello,
I believe the problem is that gem5 tries to do too much automatically for
you! gem5 automatically creates a lot of the constructor/destructor codes.
Given all of this hidden/automatic code generation, it's difficult to know
exactly what's going wrong (for both you and for us).
That said, I think the problem is that `PioDevice` is an abstract
SimObject, not a concrete SimObject. This may work if you instead use the
`DmaDevice`.
Cheers,
Jason
On Thu, Apr 21, 2022 at 1:58 PM Raghu Shankar via gem5-users <
gem5-users@gem5.org> wrote:
> By adding a PioDevice() to my version of two_level.py configuration
> script, I get this error
>
>
>
> TypeError: _m5.param_PioDevice.PioDeviceParams: No constructor defined!
>
> And checking io_device.cc the constructor looks empty
>
>
>
> Any help please? Thanks
>
>
>
> *Details:*
>
>
>
> Traceback (most recent call last):
> File "<string>", line 1, in <module>
> File "build/X86/python/m5/main.py", line 455, in main
> exec(filecode, scope)
>
>
> File "/home/raghu/gem5/configs/learning_gem5/part1/two_level.py", line
> 187, in <module>
> m5.instantiate()
> File "build/X86/python/m5/simulate.py", line 116, in instantiate
>
> File "build/X86/python/m5/SimObject.py", line 1790, in createCCObject
> self.getCCParams()
> File "build/X86/python/m5/SimObject.py", line 1720, in getCCParams
> cc_params = cc_params_struct()
>
> TypeError: _m5.param_PioDevice.PioDeviceParams: No constructor defined!
>
>
>
>
>
> *Io_device.cc*
>
> include "dev/io_device.hh"
>
> #include "base/trace.hh"
> #include "debug/AddrRanges.hh"
> #include "sim/system.hh"
>
> namespace gem5
> {
>
> PioDevice::PioDevice(const Params &p)
> : ClockedObject(p), sys(p.system), pioPort(this)
> {}
>
> PioDevice::~PioDevice()
> {
> }
>
>
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