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From: santosh <ys...@gm...> - 2015-04-08 10:24:10
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On Sun, Apr 5, 2015 at 9:05 AM, John Reiser <jr...@bi...> wrote: >> I still get the error: disInstr(ppc): unhandled instruction: 0x10E40301 >> I thought Valgrind 3.10.1 has support for CPU: e500v2? NO? > > 0x10E40301 ==> "evldd r7,0(r4)". Developers are much more likely to recognize 'evldd' > than an instruction word in hex. > > It is customary to give some documented basis for "I thought ...". Sorry. > > Just a little bit of searching the bug list: > https://bugs.kde.org Product: valgrind Content: e500 > yields this report from 2010-10-28 (4.5 years ago), last updated 2013-04-02 (two years ago): > https://bugs.kde.org/show_bug.cgi?id=255494 > which links to this attachment from a run of valgrind-3.6.0: > https://bugs.kde.org/attachment.cgi?id=52939 Thank you for pointing me towards right place. > which contains: > ----- > disInstr(ppc): unhandled instruction: 0x10E40301 > primary 4(0x4), secondary 769(0x301) > ==19630== valgrind: Unrecognised instruction at address 0x4019510. > [[snip]] > ==19630== Process terminating with default action of signal 4 (SIGILL): dumping core > ==19630== Illegal opcode at address 0x4019510 > ==19630== at 0x4019510: memcpy (in /lib/ld-2.8.so) > ==19630== by 0x40021BF: _dl_start_final (in /lib/ld-2.8.so) > ==19630== by 0x40162C7: _start (in /lib/ld-2.8.so) > ----- > So that code for memcpy has an optimization to fetch at least 64 bits at a time > in some circumstances, instead of only 32 bits. > Evidently valgrind-3.10.1 still does not implement this instruction. > > Your best bet is to comment on bug 255494, requesting implementation. > You could help by supplying a list of missing opcodes which, > if implemented, would be sufficient for valgrind to handle all of memcpy. > Until then, avoid code that contains this optimization. Install > a more-generic version of /lib/ld-2.8.so that does not use > the specialized instructions. > > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming The Go Parallel Website, sponsored > by Intel and developed in partnership with Slashdot Media, is your hub for all > things parallel software development, from weekly thought leadership blogs to > news, videos, case studies, tutorials and more. Take a look and join the > conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > Valgrind-developers mailing list > Val...@li... > https://lists.sourceforge.net/lists/listinfo/valgrind-developers |