Jason,
Thanks for the explanation and the super-fast fix below – definitely a more insightful message I was tracking the hierarchy diagrams and missed the abstract qualification – but I see it now & I’ll be more aware going forward. Thanks for your leadership in this space Raghu From: Jason Lowe-Power via gem5-users <gem5-users@gem5.org> Sent: Friday, April 22, 2022 11:16 AM To: gem5 users mailing list <gem5-users@gem5.org> Cc: rshank...@austin.rr.com; Jason Lowe-Power <ja...@lowepower.com> Subject: [gem5-users] Re: Adding PioDevice leads to TypeError: No constructor defined I just pushed a change that will make this error message better. "fatal: Cannot instantiate an abstract SimObject (system.dev <http://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 <mailto: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 <mailto: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 <mailto:gem5-users@gem5.org> To unsubscribe send an email to gem5-users-le...@gem5.org <mailto:gem5-users-le...@gem5.org> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
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