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(-)