[Click] click Digest, Vol 94, Issue 3
Eddie Kohler
kohler at cs.ucla.edu
Tue May 17 11:01:26 EDT 2011
It probably isn't the "const". It could be your compiler version. But I'm
glad you've got it working for now.
Eddie
On 5/17/11 5:51 AM, Dongyu Yang wrote:
> Thank you for Eddie!
>
> The problem is this, when i define new elements as bellow:
>
>
> class GenericAlgorithm : public Element{
> public:
> GenericAlgorithm() {}
> virtual ~GenericAlgorithm() {}
>
> virtual int algorithm(Vector<struct path_info *> source_routes,
> Vector<IPAddress> *ret_source_routes);
> }
>
>
> the element CAMAlgorithm define as bellow:
>
>
> class CAMAlgorithm : public GenericAlgorithm{
> public:
> CAMAlgorithm();
> ~CAMAlgorithm();
>
> const char *class_name() const { return "CAMAlgorithm"; }
> const char *port_count() const { return PORTS_0_0; }
> const char *processing() const { return AGNOSTIC; }
>
> int configure(Vector<String> &conf, ErrorHandler *errh);
> bool can_live_reconfigure() const { return false; }
> void *cast(const char *);
>
> int algorithm(Vector<struct path_info *> source_routes, Vector<IPAddress>
> *ret_source_routes);
>
> private:
> uint8_t _parameter_b;
> uint8_t _parameter_u;
> };
>
>
> then the problem happened, compile OK, link error:
>
> ..... grid/genericalgorithm.hh:14: undefined reference to `vtable for
> GenericAlgorithm
> camalgorithm.o:(.rodata._ZTI12CAMAlgorithm[typeinfo for CAMAlgorithm]+0x8):
> undefined reference to `typeinfo for GenericAlgorithm'
>
>
>
> but when I add const, as bellow , it is OK,
>
>
> class GenericAlgorithm : public Element{
> public:
> GenericAlgorithm() {}
> virtual ~GenericAlgorithm() {}
>
> virtual int algorithm(Vector<struct path_info *> source_routes,
> Vector<IPAddress> *ret_source_routes)/const/;
> }
>
>
> the element CAMAlgorithm define as bellow:
>
>
> class CAMAlgorithm : public GenericAlgorithm{
> public:
> CAMAlgorithm();
> ~CAMAlgorithm();
>
> const char *class_name() const { return "CAMAlgorithm"; }
> const char *port_count() const { return PORTS_0_0; }
> const char *processing() const { return AGNOSTIC; }
>
> int configure(Vector<String> &conf, ErrorHandler *errh);
> bool can_live_reconfigure() const { return false; }
> void *cast(const char *);
>
> int algorithm(Vector<struct path_info *> source_routes, Vector<IPAddress>
> *ret_source_routes)/const/;
>
> private:
> uint8_t _parameter_b;
> uint8_t _parameter_u;
> };
>
> so maybe it's my problem!
>
> Thanks for your help!
>
>
>
>
> 在 2011年5月12日 上午2:34，zi feng <zfeng at cs.ucr.edu
> <mailto:zfeng at cs.ucr.edu>>写道：
>
> Thank you Eddie.
>
> I have fixed the problem :)
>
> Zi
>
>
> 2011/5/11 Eddie Kohler <kohler at cs.ucla.edu <mailto:kohler at cs.ucla.edu>>
>
> Zi Feng, Dongyu,
>
> I could not replicate this problem. Are you still having it? It might be
> that your compiler is not emitting the vtables for these generic
> interfaces,
> which are defined only in header files. I added some .cc files too to
> attempt
> to fix the problem -- try "make elemlist; make" -- but I am not sure
> it will work.
>
> Eddie
>
>
> On 4/19/11 6:37 PM, Dongyu Yang wrote:
> > Hello, zi feng!
> >
> > do you find what case the problem, I have the similar problem, would
> > you tell me how to solve it?
> >
> > Thanks!!
> >
> >
> >
> >
> > 2011/4/7<click-request at pdos.csail.mit.edu
> <mailto:click-request at pdos.csail.mit.edu>>
> >
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> >> than "Re: Contents of click digest..."
> >>
> >> Today's Topics:
> >>
> >> 1. compiling problem with gridgenricmetric in click (zi feng)
> >>
> >>
> >> ---------- 已转发邮件 ----------
> >> From: zi feng<zfeng at cs.ucr.edu <mailto:zfeng at cs.ucr.edu>>
> >> To: click<click at pdos.csail.mit.edu <mailto:click at pdos.csail.mit.edu>>
> >> Date: Wed, 6 Apr 2011 00:10:52 -0700
> >> Subject: [Click] compiling problem with gridgenricmetric in click
> >> Hi all,
> >>
> >> I am having a problem compiling click. Everything was working
> before. I
> >> just
> >> did a 'make clean' then I configured it again, then 'make
> elemlist' and
> >> 'make'. Then I get the following errors with reference to
> >> gridgenericmetric:
> >> -----------------------------------------
> >> LINK click
> >> bottleneckmetric.o(.text+0x5b): In function
> >> `BottleneckMetric::~BottleneckMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> bottleneckmetric.o(.text+0x77): In function
> >> `BottleneckMetric::~BottleneckMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> bottleneckmetric.o(.text+0x94): In function
> >> `BottleneckMetric::~BottleneckMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> bottleneckmetric.o(.gnu.linkonce.r._ZTV16BottleneckMetric+0x80):
> undefined
> >> reference to `GridGenericMetric::get_link_etx(EtherAddress const&,
> bool)'
> >> bottleneckmetric.o(.gnu.linkonce.r._ZTI16BottleneckMetric+0x8):
> undefined
> >> reference to `typeinfo for GridGenericMetric'
> >> e2elossmetric.o(.text+0x63): In function
> `E2ELossMetric::~E2ELossMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> e2elossmetric.o(.text+0x7f): In function
> `E2ELossMetric::~E2ELossMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> e2elossmetric.o(.text+0x9c): In function
> `E2ELossMetric::~E2ELossMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> e2elossmetric.o(.gnu.linkonce.r._ZTV13E2ELossMetric+0x80): undefined
> >> reference to `GridGenericMetric::get_link_etx(EtherAddress const&,
> bool)'
> >> e2elossmetric.o(.gnu.linkonce.r._ZTI13E2ELossMetric+0x8): undefined
> >> reference to `typeinfo for GridGenericMetric'
> >> etx2metric.o(.text+0x63): In function `ETX2Metric::~ETX2Metric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> etx2metric.o(.text+0x7f): In function `ETX2Metric::~ETX2Metric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> etx2metric.o(.text+0x9c): In function `ETX2Metric::~ETX2Metric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> etx2metric.o(.gnu.linkonce.r._ZTV10ETX2Metric+0x80): undefined
> reference to
> >> `GridGenericMetric::get_link_etx(EtherAddress const&, bool)'
> >> etx2metric.o(.gnu.linkonce.r._ZTI10ETX2Metric+0x8): undefined
> reference to
> >> `typeinfo for GridGenericMetric'
> >> etxmetric.o(.text+0x63): In function `ETXMetric::~ETXMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> etxmetric.o(.text+0x7f): In function `ETXMetric::~ETXMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> etxmetric.o(.text+0x9c): In function `ETXMetric::~ETXMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> etxmetric.o(.gnu.linkonce.r._ZTI9ETXMetric+0x8): undefined
> reference to
> >> `typeinfo for GridGenericMetric'
> >> hopcountmetric.o(.text+0x4b): In function
> >> `HopcountMetric::~HopcountMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> hopcountmetric.o(.text+0x67): In function
> >> `HopcountMetric::~HopcountMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> hopcountmetric.o(.text+0x84): In function
> >> `HopcountMetric::~HopcountMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> hopcountmetric.o(.gnu.linkonce.r._ZTV14HopcountMetric+0x80): undefined
> >> reference to
> >> `GridGenericMetric::get_link_etx(EtherAd
> >> dress const&, bool)'
> >> hopcountmetric.o(.gnu.linkonce.r._ZTI14HopcountMetric+0x8): undefined
> >> reference to `typeinfo for GridGenericMetric'
> >> lirmetric.o(.text+0x5b): In function `LIRMetric::~LIRMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> lirmetric.o(.text+0x77): In function `LIRMetric::~LIRMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> lirmetric.o(.text+0x94): In function `LIRMetric::~LIRMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> lirmetric.o(.gnu.linkonce.r._ZTV9LIRMetric+0x80): undefined
> reference to
> >> `GridGenericMetric::get_link_etx(EtherAddress
> >> const
> >> &, bool)'
> >> lirmetric.o(.gnu.linkonce.r._ZTI9LIRMetric+0x8): undefined
> reference to
> >> `typeinfo for GridGenericMetric'
> >> lirmetric.o(.gnu.linkonce.r._ZTI9LIRMetric+0x8): undefined
> reference to
> >> `typeinfo for GridGenericMetric'
> >> threshmetric.o(.text+0x6b): In function
> >> `ThresholdMetric::~ThresholdMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> threshmetric.o(.text+0x87): In function
> >> `ThresholdMetric::~ThresholdMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> threshmetric.o(.text+0xa4): In function
> >> `ThresholdMetric::~ThresholdMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> threshmetric.o(.gnu.linkonce.r._ZTV15ThresholdMetric+0x80): undefined
> >> reference to
> >> `GridGenericMetric::get_link_etx(EtherAdd
> >> ress const&, bool)'
> >> threshmetric.o(.gnu.linkonce.r._ZTI15ThresholdMetric+0x8): undefined
> >> reference to `typeinfo for GridGenericMetric'
> >> yarvismetric.o(.text+0x5b): In function
> `YarvisMetric::~YarvisMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> yarvismetric.o(.text+0x77): In function
> `YarvisMetric::~YarvisMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> yarvismetric.o(.text+0x94): In function
> `YarvisMetric::~YarvisMetric()':
> >> ../elements/grid/gridgenericmetric.hh:17: undefined reference to
> `vtable
> >> for
> >> GridGenericMetric'
> >> yarvismetric.o(.gnu.linkonce.r._ZTV12YarvisMetric+0x80): undefined
> >> reference
> >> to
> >> `GridGenericMetric::get_link_etx(EtherAddres
> >> s const&, bool)'
> >> yarvismetric.o(.gnu.linkonce.r._ZTI12YarvisMetric+0x8): undefined
> reference
> >> to `typeinfo for GridGenericMetric'
> >> collect2: ld returned 1 exit status
> >> make: *** [click] Error 1
> >> --------------------------------------
> >>
> >> I have checked GridGenricMetric.hh and everything looks good. What
> I do not
> >> get is that it used to work well before I 'make clean'.
> >>
> >> If anyone has any clue about this problem or any suggestions, I
> will really
> >> appreciate it a lot.
> >>
> >> Thanks!!
> >> Zi
> >>
> >>
> >> _______________________________________________
> >> click mailing list
> >> click at amsterdam.lcs.mit.edu <mailto:click at amsterdam.lcs.mit.edu>
> >> https://amsterdam.lcs.mit.edu/mailman/listinfo/click
> >>
> >>
> > _______________________________________________
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> > click at amsterdam.lcs.mit.edu <mailto:click at amsterdam.lcs.mit.edu>
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
>
>
>
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