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[213.175.37.12]) by smtp.gmail.com with ESMTPSA id bg12sm5272528wmb.5.2021.11.24.00.41.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Nov 2021 00:41:20 -0800 (PST) From: Jiri Olsa X-Google-Original-From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Arnaldo Carvalho de Melo , Peter Zijlstra , Masami Hiramatsu , Steven Rostedt Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, lkml , Ingo Molnar , Mark Rutland , Martin KaFai Lau , Alexander Shishkin , Song Liu , Yonghong Song , John Fastabend , KP Singh , Ravi Bangoria Subject: [RFC 0/8] perf/bpf: Add batch support for [ku]probes attach Date: Wed, 24 Nov 2021 09:41:11 +0100 Message-Id: <20211124084119.260239-1-jolsa@kernel.org> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org hi, adding support to create multiple kprobes/uprobes within single perf event. This way we can associate single bpf program with multiple kprobes. Sending this as RFC because I'm not completely sure I haven't missed anything in the trace/events area. Also it needs following uprobe fix to work properly: https://lore.kernel.org/lkml/20211123142801.182530-1-jolsa@kernel.org/ Also available at: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/kuprobe_batch thanks, jirka --- Jiri Olsa (8): perf/kprobe: Add support to create multiple probes perf/uprobe: Add support to create multiple probes libbpf: Add libbpf__kallsyms_parse function libbpf: Add struct perf_event_open_args libbpf: Add support to attach multiple [ku]probes libbpf: Add support for k[ret]probe.multi program section selftest/bpf: Add kprobe multi attach test selftest/bpf: Add uprobe multi attach test include/uapi/linux/perf_event.h | 1 + kernel/trace/trace_event_perf.c | 214 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------- kernel/trace/trace_kprobe.c | 47 ++++++++++++++++--- kernel/trace/trace_probe.c | 2 +- kernel/trace/trace_probe.h | 6 ++- kernel/trace/trace_uprobe.c | 43 +++++++++++++++-- tools/include/uapi/linux/perf_event.h | 1 + tools/lib/bpf/libbpf.c | 235 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------- tools/lib/bpf/libbpf.h | 25 +++++++++- tools/lib/bpf/libbpf_internal.h | 5 ++ tools/testing/selftests/bpf/prog_tests/multi_kprobe_test.c | 83 +++++++++++++++++++++++++++++++++ tools/testing/selftests/bpf/prog_tests/multi_uprobe_test.c | 97 ++++++++++++++++++++++++++++++++++++++ tools/testing/selftests/bpf/progs/multi_kprobe.c | 58 +++++++++++++++++++++++ tools/testing/selftests/bpf/progs/multi_uprobe.c | 26 +++++++++++ 14 files changed, 765 insertions(+), 78 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/multi_kprobe_test.c create mode 100644 tools/testing/selftests/bpf/prog_tests/multi_uprobe_test.c create mode 100644 tools/testing/selftests/bpf/progs/multi_kprobe.c create mode 100644 tools/testing/selftests/bpf/progs/multi_uprobe.c