I just pushed a change that will make this error message better. "fatal: Cannot instantiate an abstract SimObject (system.dev)" is what the error now says :).
See https://gem5-review.googlesource.com/c/public/gem5/+/59049 Cheers, Jason On Fri, Apr 22, 2022 at 8:57 AM Jason Lowe-Power <ja...@lowepower.com> wrote: > 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() >> { >> } >> >> >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-le...@gem5.org >> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s > >
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