Messages in this thread | | | From | Blaisorblade <> | Subject | Re: [uml-devel] Re: Partial fix! - Was: Re: [BUG report] UML linux-2.6 latest BK doesn't compile | Date | Sat, 9 Sep 2006 11:31:36 +0200 |
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On Saturday 09 September 2006 00:25, i.r.wezeman@hetnet.nl wrote: > Hi there. > > I got a error undefined reference to `__bb_init_func' when > compiling uml with kernel 2.6.17.6, gcc 4.1.1 and glibc-2.4
Ok, that's new. The below mail is about a very similar problem but with an older Gcc, and since these symbols are provided by gcc, this makes a difference.
Try removing from arch/um/kernel/gmon_syms.c these 2 lines:
extern void __bb_init_func(void *); EXPORT_SYMBOL(__bb_init_func);
and recompiling. Better yet, try if adding the weak attribute like below fixes the problem:
extern void __bb_init_func(void *) __attribute__((weak)); EXPORT_SYMBOL(__bb_init_func);
Another possible thing to check is what happens with CONFIG_STATIC_LINK=y (edit it by hand and do not enable GPROF for now, that is yet another thing).
> Done: make clean && make distclean && make allmodconfig ARCH=um
> # CONFIG_GPROF is not set > CONFIG_GCOV=y
This results from allmodconfig? Mmpf, that is not so nice (allmodconfig should not result in a debug kernel). Even if allmodconfig is not a _smart_ setting (set to y or m everything).
> # > # UML-specific options > # > # CONFIG_MODE_TT is not set > # CONFIG_STATIC_LINK is not set > CONFIG_MODE_SKAS=y
> Build: make linux ARCH=um > > > edit file: uml/arch/um/os-Linux/sys-i386/registers.c
> Ending: > > arch/um/kernel/built-in.o:(__ksymtab+0x238): undefined reference to > `__bb_init_func' > arch/um/os-Linux/built-in.o: In function `do_syscall_stub': > arch/um/os-Linux/skas/mem.c:63: undefined reference to > `get_safe_registers' > arch/um/os-Linux/built-in.o: In function `copy_context_skas0': > arch/um/os-Linux/skas/process.c:333: undefined reference to > `get_safe_registers'
Since it arrives to this point, get_safe_register should be undefined only because of the previous failure.
> I see it must be solved. So wat is happend now? > > Ron Wezeman -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade Chiacchiera con i tuoi amici in tempo reale! http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com
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