GitHub pull request #2726 of commit ea845c00d3d7c7f8697fea9e9f51f97d66888867, no merge conflicts.sha1origin/pr/2726/mergeghprbActualCommitea845c00d3d7c7f8697fea9e9f51f97d66888867ghprbActualCommitAuthorJiri OlsaghprbActualCommitAuthorEmailjolsa@kernel.orgghprbAuthorRepoGitUrlhttps://github.com/olsajiri/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId2726ghprbTargetBranchmasterghprbSourceBranchkfuncGIT_BRANCHkfuncghprbPullAuthorEmailghprbPullAuthorLoginolsajirighprbPullAuthorLoginMention@olsajirighprbPullDescriptionGitHub pull request #2726 of commit ea845c00d3d7c7f8697fea9e9f51f97d66888867, no merge conflicts.ghprbPullTitleIntroduce {attach|detach}_kfunc APIghprbPullLinkhttps://github.com/iovisor/bcc/pull/2726ghprbPullLongDescriptionKernel added new probe called trampoline allowing to probe\r\nalmost any kernel function when BTF info is available in\r\nthe system.\r\n \r\nAdding the interface under 'kfunc' name, which allows to\r\nprobe function entry and 'kretfunc' name, which allows to\r\ntrace function return.\r\n \r\n The main benefit is really low overhead which is really low\r\n for trampolines (please see commit for klockstat.py\r\n with perf comparison).\r\n \r\n Another benefit is the ability of kretfunc probe to access\r\n function arguments, so some tools might need only one program\r\n instead of entry/exit ones (please see commit for\r\n opensnoop.py changes).\r\nghprbCommentBodynullghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="Introduce {attach|detach}_kfunc API" href="https://github.com/iovisor/bcc/pull/2726">PR #2726</a>: Introduce {attach|detach}_k...#35414896787460664bcc-pr #354354false3542847SUCCESS1582643590534https://buildbot.iovisor.org/jenkins/job/bcc-pr/354/git354https://buildbot.iovisor.org/jenkins/job/bcc-pr/label=fc25/354/354https://buildbot.iovisor.org/jenkins/job/bcc-pr/label=fc26/354/354https://buildbot.iovisor.org/jenkins/job/bcc-pr/label=fc27/354/354https://buildbot.iovisor.org/jenkins/job/bcc-pr/label=fc28/354/354https://buildbot.iovisor.org/jenkins/job/bcc-pr/label=ubuntu1604/354/354https://buildbot.iovisor.org/jenkins/job/bcc-pr/label=ubuntu1710/354/354https://buildbot.iovisor.org/jenkins/job/bcc-pr/label=ubuntu1804/354/