On Mon, Jul 13, 2009 at 1:31 PM, Aurelien Jarno<aurel...@aurel32.net> wrote: > With a lot of patches (E)GLIBC 2.10 builds on alpha, but it fails on the > testsuite for the memchr() function, which is an optimized assembly code > on alpha. Unfortunately I don't speak alpha assembly very well, so help > is needed. > > The problem is that the memchr() function on alpha uses prefetch, which > can cause a page boundary to be crossed, while the standards (POSIX and > C99) says it should stop when a match is found. > > I have built a small testcase (see file attached), which contains the > code to trigger the bug and the assembly code of the memchr() function, > copied from EGLIBC. > > It would be nice if someone can fix the assembly code so that the > prefetching does not create memory faults. Thanks in advance.
If you remove: ./sysdeps/alpha/alphaev6/memchr.S ./sysdeps/alpha/memchr.S and allow the build to fallback on string/memchr.c do the tests pass? You can always add memchr.S routines back in a later release if you need an immediate workaround. Cheers, Carlos. -- To UNSUBSCRIBE, email to debian-alpha-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org