GitHub pull request #2906 of commit 0570436c9b8df70f729b6bbddb3db3c79cc86e60, no merge conflicts.sha1origin/pr/2906/mergeghprbActualCommit0570436c9b8df70f729b6bbddb3db3c79cc86e60ghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/ethercflow/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId2906ghprbTargetBranchmasterghprbSourceBranchlibbpf-toolsGIT_BRANCHlibbpf-toolsghprbPullAuthorEmailethercflow@gmail.comghprbPullAuthorLoginethercflowghprbPullAuthorLoginMention@ethercflowghprbPullDescriptionGitHub pull request #2906 of commit 0570436c9b8df70f729b6bbddb3db3c79cc86e60, no merge conflicts.ghprbPullTitlelibbpf-tools: add CO-RE cpudistghprbPullLinkhttps://github.com/iovisor/bcc/pull/2906ghprbPullLongDescription- Implement cpudist, which is consistent with https://github.com/iovisor/bcc/blob/master/tools/cpudist_example.txt\r\n- Add a new helper `print_log2_hist` in `trace_helpers`\r\n- Add a general dictionary (based on the glibc's binary search tree) in `trace_helpers`\r\n- Add a bpf helper `bpf_log(l)` in `helpers.h`\r\n- Add `-Wno-unused-result` to CFLAGS to ignore warnings caused by `asprintf`.\r\n\r\nSigned-off-by: Wenbo Zhang <ethercflow@gmail.com>ghprbCommentBody[buildbot, test this please]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="libbpf-tools: add CO-RE cpudist" href="https://github.com/iovisor/bcc/pull/2906">PR #2906</a>: libbpf-tools: add CO-RE cpu...#52215628677460664bcc-pr #522522false5224184SUCCESS1591161787456https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/522/git522https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=fc25/522/522https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=fc26/522/522https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=fc27/522/522https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=fc28/522/522https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=ubuntu1604/522/522https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=ubuntu1710/522/522https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=ubuntu1804/522/