Public bug reported: Hello, For Arm platforms it is possible to capture Coresight Trace information with Linux perf. A library libopencsd-dev is then used to decode the coresight trace information.
On Debian, we already have perf linking against libopencsd-dev, this was addressed by: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=895131 Could we please have a similar change applied to the Ubuntu perf executables? To implement this change one would need to: 1) Add libopencsd-dev to the build-deps, 2) Add CORESIGHT=1 to the make flags for perf. Note that it would be beneficial for all architectures to link against libopencsd-dev (not just arm64) as this would allow users to decode coresight trace information on their local machine. Cheers, -- Steve Capper ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2056178 Title: Please link linux-perf against libopencsd-dev Status in linux package in Ubuntu: New Bug description: Hello, For Arm platforms it is possible to capture Coresight Trace information with Linux perf. A library libopencsd-dev is then used to decode the coresight trace information. On Debian, we already have perf linking against libopencsd-dev, this was addressed by: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=895131 Could we please have a similar change applied to the Ubuntu perf executables? To implement this change one would need to: 1) Add libopencsd-dev to the build-deps, 2) Add CORESIGHT=1 to the make flags for perf. Note that it would be beneficial for all architectures to link against libopencsd-dev (not just arm64) as this would allow users to decode coresight trace information on their local machine. Cheers, -- Steve Capper To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2056178/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
