Public bug reported: ---Problem Description--- Valgrind is not supported on PPC64 Little Endian (LE) platforms. The LE support has recently been added to Valgrind. Would like to get the support included in the Ubuntu 14.10 release. ---Additional Hardware Info--- PPC64 LE system Machine Type = PPC64 Little Endian ---Steps to Reproduce--- The valgrind support for PPC64 does not exist. So starting the tool on the platform just fails. Userspace tool common name: valgrind The userspace tool has the following bit modes: 64-bit
The needed support for Valgrind on PPC64 LE was added upstream. The description of the added support can be found in the Valgrind bugzillas: https://bugs.kde.org/show_bug.cgi?id=334384 Patch 1 Valgrind commit 14238 https://bugs.kde.org/show_bug.cgi?id=334834 Patch 2 Valgrind commit 14239, vex commit 2914 https://bugs.kde.org/show_bug.cgi?id=334836 Patch 3 Valgrind commit 14240 fix for the performance regerssion fix Valgrind commit 14246 on Friday July 8, 2014 Note, patch 2 is depended on some newly added support for passing the Endianess of the host and the guest to the VEX code. The valgrind commit for this dependent support is as follows: Valgrind repository r14184 | sewardj | 2014-07-24 07:45:24 -0500 (Thu, 24 Jul 2014) | 8 lines Track vex r2910 (infrastructural improvements in representation of endianness in VEX). In short: in m_machine.c, VG_(machine_get_hwcaps), get the endianness of the host, and pass it through to all places (in VEX) where it is required. VEX repository r2910 | sewardj | 2014-07-24 07:42:03 -0500 (Thu, 24 Jul 2014) | 22 lines Improve infrastructure for dealing with endianness in VEX. This patch removes all decisions about endianness from VEX. Instead, it requires that the LibVEX_* calls pass in information about the guest or host endianness (depending on context) and in turn it passes that info through to all the places that need it: * the front ends (xx_toIR.c) * the back ends (xx_isel.c) * the patcher functions (Chain, UnChain, PatchProfInc) Mostly it is boring and ugly plumbing. As far as types go, there is a new type "VexEndness" that carries the endianness. This also makes it possible to stop using Bools to indicate endianness. VexArchInfo has a new field of type VexEndness. Apart from that, no other changes in types. Followups: MIPS front and back ends have not yet been fixed up to use the passed-in endianness information. Currently they assume that the endianness of both host and guest is the same as the endianness of the target for which VEX is being compiled. ** Affects: ubuntu Importance: Undecided Status: New ** Tags: architecture-ppc64le bugnameltc-114508 severity-medium targetmilestone-inin1410 ** Tags added: architecture-ppc64le bugnameltc-114508 severity-medium targetmilestone-inin1410 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1355530 Title: Valgrind is not supported on PPC64 Little Endian (LE) platforms To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1355530/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
