Hello,

I am trying to use shared_ptr for the Packet class.  I changed  "typedef Packet *PacketPtr" to "typedef std::shared_ptr<Packet> PacketPtr" and made all the needed associated changes.  My code compiled fine, but I now have this linker error:

build/ARM/python/m5/param_Cache_Controller.cc:77: undefined reference to gem5::Cache_ControllerParams::create() const' build/ARM/python/_m5/param_Memory_Controller.do: In function gem5::module_init(pybind11::module&)'

There are also similar errors for Memory_Controller, MiscNode_Controller, and TrafficGenerator_Controller.

Does anybody know how to fix this issue?  Per a comment in build_tools/sim_object_param_struct_cc.py, "gem5::Cache_ControllerParams::create() const" is auto generated via some magic template trick that I don't understand.
Also, has anybody done something similar to this before and has pointers to share?

Thank you

[Public]

Hello,

Is this on develop? I made some recent Ruby changes. If you create a github issue I can track this better

-Matt

-----Original Message-----
From: Anhdung Duong Ngo via gem5-dev gem5-dev@gem5.org
Sent: Monday, October 14, 2024 12:10 PM
To: The gem5 Developer List gem5-dev@gem5.org; gem5-users gem5-users@gem5.org
Cc: Ngo, Anhdung anh.ngo1@samsung.com
Subject: [gem5-dev] Gem5 linker error due to undefined reference to `gem5::Cache_ControllerParams::create() const'

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Hello,

I am trying to use shared_ptr for the Packet class.  I changed  "typedef Packet *PacketPtr" to "typedef std::shared_ptr<Packet> PacketPtr" and made all the needed associated changes.  My code compiled fine, but I now have this linker error:

build/ARM/python/m5/param_Cache_Controller.cc:77: undefined reference to gem5::Cache_ControllerParams::create() const' build/ARM/python/_m5/param_Memory_Controller.do: In function gem5::module_init(pybind11::module&)'

There are also similar errors for Memory_Controller, MiscNode_Controller, and TrafficGenerator_Controller.

Does anybody know how to fix this issue?  Per a comment in build_tools/sim_object_param_struct_cc.py, "gem5::Cache_ControllerParams::create() const" is auto generated via some magic template trick that I don't understand.
Also, has anybody done something similar to this before and has pointers to share?

Thank you

gem5-dev mailing list -- gem5-dev@gem5.org To unsubscribe send an email to gem5-dev-leave@gem5.org

Hello Matt,

Thank you for replying.  I've fixed the  linker error:  it's due to mismatched method signatures in the generated Memory_Controller.hh vs AbstractController.hh

In src/mem/ruby/slicc_interface/AbstractController.hh, we have
virtual void functionalRead(const Addr &addr, PacketPtr pkt, WriteMask &mask);

But the generated build/ARM/mem/ruby/protocol/ Memory_Controller.hh has
void functionalRead(const Addr& param_addr, const PacketPtr& param_pkt, WriteMask& param_mask);

I fixed the problem by changing AbstractController.hh to match the generated code.  (I guess it wasn't an issue before when PacketPtr was just Packet *)

Thank you

-----Original Message-----
From: Poremba, Matthew Matthew.Poremba@amd.com
Sent: Monday, October 14, 2024 4:16 PM
To: The gem5 Developer List gem5-dev@gem5.org; gem5-users gem5-users@gem5.org
Cc: Anhdung Duong Ngo anh.ngo1@samsung.com
Subject: RE: [gem5-dev] Gem5 linker error due to undefined reference to `gem5::Cache_ControllerParams::create() const'

[Public]

Hello,

Is this on develop? I made some recent Ruby changes. If you create a github issue I can track this better

-Matt

-----Original Message-----
From: Anhdung Duong Ngo via gem5-dev gem5-dev@gem5.org
Sent: Monday, October 14, 2024 12:10 PM
To: The gem5 Developer List gem5-dev@gem5.org; gem5-users gem5-users@gem5.org
Cc: Ngo, Anhdung anh.ngo1@samsung.com
Subject: [gem5-dev] Gem5 linker error due to undefined reference to `gem5::Cache_ControllerParams::create() const'

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Hello,

I am trying to use shared_ptr for the Packet class.  I changed  "typedef Packet *PacketPtr" to "typedef std::shared_ptr<Packet> PacketPtr" and made all the needed associated changes.  My code compiled fine, but I now have this linker error:

build/ARM/python/m5/param_Cache_Controller.cc:77: undefined reference to gem5::Cache_ControllerParams::create() const' build/ARM/python/_m5/param_Memory_Controller.do: In function gem5::module_init(pybind11::module&)'

There are also similar errors for Memory_Controller, MiscNode_Controller, and TrafficGenerator_Controller.

Does anybody know how to fix this issue?  Per a comment in build_tools/sim_object_param_struct_cc.py, "gem5::Cache_ControllerParams::create() const" is auto generated via some magic template trick that I don't understand.
Also, has anybody done something similar to this before and has pointers to share?

Thank you

gem5-dev mailing list -- gem5-dev@gem5.org To unsubscribe send an email to gem5-dev-leave@gem5.org