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From: | Bruno Haible |
Subject: | Re: [bug-libsigsegv] Re: sigsegv on s390 only giving start address of page in segv handler |
Date: | Tue, 15 Mar 2011 10:50:54 +0100 |
User-agent: | KMail/1.9.9 |
Martin Schwidefsky wrote: > Even with the access-exception-fetch/store-indication facility you'll find > on the latest machine it is not possible to distinguish read from write > faults in all cases ... On older machines the TEID does not carry an > indication if the page translation exception has been for a read or a > write. Oh well then. Thank you for having considered the question. libsigsegv will now offer the page-aligned fault address approximation to userland, together with a C macro that warns the programmer that it is page-aligned. Bruno -- In memoriam Diego de Enzinas <http://en.wikipedia.org/wiki/Diego_de_Enzinas>
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