_init magic for c++ (on sparc64)

[Sebastian Huber]

On 11/30/2010 10:28 AM, Ralf Corsepius wrote:
> On 11/30/2010 09:21 AM, Sebastian Huber wrote:
>> Hi,
>>
>> sorry, my commit
>>
>> 2010-11-29    Sebastian Huber<sebastian.huber at embedded-brains.de>
>>
>>     * libcsupport/src/newlibc_exit.c, score/src/threadhandler.c: Added
>>     support for .preinit_array, .init_array and .fini_array sections.
>>
>> was broken.  It seems that HAVE_INITFINI_ARRAY is defined for nearly all
>> targets by Newlib,
> 
> The INIT_FINI magic is provided by GCC. newlib is supposed to pick it up
> from GCC.
> 
>> but only few linker command files respect this.
> Well, though init/fini initialization repeatedly had been subject to
> issues in RTEMS history, I am having doubts on this claim.

sh at cosinus:~/rtems-cvs > grep -r '\.init_array' -l .
./c/src/lib/libbsp/nios2/nios2_iss/startup/linkcmds
./c/src/lib/libbsp/arm/nds/startup/linkcmds
./c/src/lib/libbsp/arm/nds/coproc/coproc.ld
./c/src/lib/libbsp/powerpc/tqm8xx/startup/linkcmds.base
./c/src/lib/libbsp/powerpc/mpc55xxevb/startup/linkcmds.base
./c/src/lib/libbsp/powerpc/shared/startup/linkcmds
./c/src/lib/libbsp/powerpc/gen5200/startup/linkcmds.base
./c/src/lib/libbsp/powerpc/gen83xx/startup/linkcmds.base
./c/src/lib/libbsp/lm32/lm32_evr/startup/linkcmds
./c/src/lib/libbsp/lm32/milkymist/startup/linkcmds
./c/src/lib/libbsp/i386/pc386/startup/linkcmds
./c/src/lib/libbsp/m32c/m32cbsp/startup/linkcmds
./c/src/lib/libbsp/m32r/m32rsim/startup/linkcmds
./tools/cpu/nios2/sample.ptf

Also RTEMS does not care about the functions referenced by the array sections.

[...]

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Sebastian Huber, embedded brains GmbH

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