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Re: error with __cxa_atexit and __dso_handle
- From: Alexey Shusharin <mrfinch at mail dot ru>
- To: "Santiago Lafon - Controles S.A." <slafon at controles dot com>
- Cc: ecos-discuss at ecos dot sourceware dot org
- Date: Thu, 20 Sep 2007 19:02:40 +0700
- Subject: Re: [ECOS] error with __cxa_atexit and __dso_handle
- References: <46EAA5B4.9060501@controles.com>
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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