Re: [ECOS] error with __cxa_atexit and __dso_handle

[Alexey Shusharin <mrfinch at mail dot ru>]

Ð ÐÑÐ, 14/09/2007 Ð 12:16 -0300, Santiago Lafon - Controles S.A. ÐÐÑÐÑ:
> I want to upgrade my arm-alf toolchan to the latest GNU tools
> 
> Some time ago, i made a toolchain with:
>      binutils 2.14
>      gcc-core 3.3.1
>      gcc-g++  3.3.1
>      newlib   1.11.0
>      insight  5.3
> 
> Now i made a new one with
>      binutils 2.18
>      gcc    4.2.1
>      newlib    1.15.0
>      insight    6.6
> 
> I can build ecos without apparent problems (i'm working with a simple 
> eb40a target).
> 
> Then, when i try to make a simple application (or if i try to make ecos 
> tests), it's when my problems appears.
> 
> I get lots of errors like this:
> 
> work/eCos/lib/eb40a/rom/eb40a_rom_sin_net_v00.20_install/lib/extras.o: 
> In function `__static_initialization_and_destruction_0':
> /opt/ecos-snap-2007-09-09/packages/io/fileio/current/src/misc.cxx:105: 
> undefined reference to `__cxa_atexit'
> 
> /opt/ecos-snap-2007-09-09/packages/io/fileio/current/src/misc.cxx:125: 
> undefined reference to `__cxa_atexit'
> /opt/ecos-snap-2007-09-09/packages/io/fileio/current/src/misc.cxx:532: 
> undefined reference to `__dso_handle'
> 
> Could someone help me?
> 
> Thanks
>      Santiago Lafon
> 

Hi

The solution is using '--disable-__cxa_atexit' configure option when
you're building gcc. This option is enabled by default in gcc 4.2.1, but
it can be used only with glibc (not with newlib).

Best regards
Alexey Shusharin



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