Am Thu, 24 Aug 2017 09:15:34 -0700 schrieb George Broz <[email protected]>:
> ---------- Forwarded message ---------- > From: George Broz <[email protected]> > Date: 24 August 2017 at 09:13 > Subject: Re: [Xenomai] undefined symbol __wrap_malloc in 3.0.4 > To: Henning Schild <[email protected]> > > > On 24 August 2017 at 08:50, Henning Schild > <[email protected]> wrote: > > Hey, > > > > you are probably a victim of canonical. 3.0.5 fixes that issue, you > > can also cherry-pick > > http://git.xenomai.org/xenomai-3.git/commit/?id=83dea2ad712ee2d2137942c7ab9891da7d4ef841 > > > > Henning > > Thanks for the quick response. I am cross-compiling for an Altera ARM > SoC using a cross > toolchain built by Yocto. It's the exact same toolchain I used to > build the application under 3.0.2. > > I tried adding this to the linker flags anyway, but I still get the > same unresolved symbol message. Would you mind trying 3.0.5? Further you might want to check how your recipe installs xenomai, if it does not use "make install" it might miss the new library libmodechk.so. With ldd or objdump you should see some component pulling in libmodechk and i bet if you ldd your application that does not show up in the list. > Any other suggestions? Is it required now for 3.0.4 applications to > include this mode-check flag > in order to use malloc/free under Xenomai? With "--no-mode-check" for xeno-config it should work like before. But you probably do not want to disable that because you will not get signaled anymore if you use malloc. Henning > > --George > > > > > Am Thu, 24 Aug 2017 08:38:29 -0700 > > schrieb George Broz <[email protected]>: > > > >> Hi , > >> > >> I am trying to run an application in Xenomai 3.0.4 that was > >> previously running fine in Xenomai 3.0.2. > >> > >> On startup of the application, I get the message: > >> ./my_app: symbol lookup error: ./my_app: undefined symbol: > >> __wrap_malloc > >> > >> (which terminates the application.) > >> > >> I noticed that malloc and free are missing from the cobalt.wrappers > >> in 3.0.4. They are now in "modechk.wrappers" > >> > >> I saw that a xeno-config option was added > >> (--no-mode-check/--mode-check) . I have added this to my link flags > >> for the application. I have tried both options > >> and I still get the same undefined symbol message on startup. > >> > >> Can someone please tell me how I can build the application to now > >> find these wrappers? Does it require a Xenomai kernel > >> configuration option to be selected as well? > >> > >> > >> Thanks in advance! > >> > >> --George Broz > >> Moog Industrial Group > >> > >> _______________________________________________ > >> Xenomai mailing list > >> [email protected] > >> https://xenomai.org/mailman/listinfo/xenomai > > > > _______________________________________________ > Xenomai mailing list > [email protected] > https://xenomai.org/mailman/listinfo/xenomai _______________________________________________ Xenomai mailing list [email protected] https://xenomai.org/mailman/listinfo/xenomai
