linux-kernel - [PATCHv8 perf/core 0/2] uprobe: Add session support

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Message-ID: <20241018202252.693462-1-jolsa@kernel.org>
Date: Fri, 18 Oct 2024 22:22:50 +0200
From: Jiri Olsa <jolsa@...nel.org>
To: Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Andrii Nakryiko <andrii@...nel.org>
Cc: bpf@...r.kernel.org,
	Martin KaFai Lau <kafai@...com>,
	Song Liu <songliubraving@...com>,
	Yonghong Song <yhs@...com>,
	John Fastabend <john.fastabend@...il.com>,
	KP Singh <kpsingh@...omium.org>,
	Stanislav Fomichev <sdf@...ichev.me>,
	Hao Luo <haoluo@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Subject: [PATCHv8 perf/core 0/2] uprobe: Add session support

hi,
this patchset is adding support for session uprobe attachment and
using it through bpf link for bpf programs.

The session means that the uprobe consumer is executed on entry
and return of probed function with additional control:
  - entry callback can control execution of the return callback
  - entry and return callbacks can share data/cookie

On more details please see patch #2.

The patchset is based on Peter's perf/core [1].

v8 changes:
  - split and sepatate only the perf/core patches
  - rebased and reposted to proper ppl/lists

thanks,
jirka


[1] git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git perf/core
---
Jiri Olsa (2):
      uprobe: Add data pointer to consumer handlers
      uprobe: Add support for session consumer

 include/linux/uprobes.h                               |  25 +++++++++++++++--
 kernel/events/uprobes.c                               | 148 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------
 kernel/trace/bpf_trace.c                              |   6 ++--
 kernel/trace/trace_uprobe.c                           |  12 +++++---
 tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c |   2 +-
 5 files changed, 154 insertions(+), 39 deletions(-)