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Hello, We have been using an unwinding fallback on mips-irix6/n32 for a while (number of years) across different versions of GCC (3.4, 4.1, 4.3, and 4.5 lately). We haven't submitted this for inclusion so far because of the pretty limited range of supported configurations (irix 6, n32 abi only). Exchanges offlist suggested that it could be of interest nevertheless, so here it is. Our latest port was to gcc 4.5. The attached patch is a minor adaptation of that to mainline. I tested that a non bootstrap build proceeds fine and that a basic test involving SEGV in Ada works as expected. Rainer kindly offered to perform more thorough testing, to validate that this indeed reduces the amount of failures he has been observing. Thanks :) Olivier 2010-12-26 Olivier Hainque <hainque@adacore.com> * config/mips/iris6-unwind.h: New file. * config/mips/iris6.h (MD_UNWIND_SUPPORT): Define.
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