| Message ID | 20241108134544.480660-1-jolsa@kernel.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | bpf: Add uprobe session support | expand |
Hello: This series was applied to bpf/bpf-next.git (master) by Andrii Nakryiko <andrii@kernel.org>: On Fri, 8 Nov 2024 14:45:31 +0100 you wrote: > 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 > > [...] Here is the summary with links: - [PATCHv9,bpf-next,01/13] bpf: Allow return values 0 and 1 for kprobe session https://git.kernel.org/bpf/bpf-next/c/1c9b65d7b569 - [PATCHv9,bpf-next,02/13] bpf: Force uprobe bpf program to always return 0 https://git.kernel.org/bpf/bpf-next/c/fb9618060bb7 - [PATCHv9,bpf-next,03/13] bpf: Add support for uprobe multi session attach https://git.kernel.org/bpf/bpf-next/c/4c2c20b698ce - [PATCHv9,bpf-next,04/13] bpf: Add support for uprobe multi session context https://git.kernel.org/bpf/bpf-next/c/362ced90a9b9 - [PATCHv9,bpf-next,05/13] libbpf: Add support for uprobe multi session attach https://git.kernel.org/bpf/bpf-next/c/894d0bd715f8 - [PATCHv9,bpf-next,06/13] selftests/bpf: Add uprobe session test https://git.kernel.org/bpf/bpf-next/c/1932f3ffe604 - [PATCHv9,bpf-next,07/13] selftests/bpf: Add uprobe session cookie test https://git.kernel.org/bpf/bpf-next/c/dce1b3b721b8 - [PATCHv9,bpf-next,08/13] selftests/bpf: Add uprobe session recursive test https://git.kernel.org/bpf/bpf-next/c/9236020b0896 - [PATCHv9,bpf-next,09/13] selftests/bpf: Add uprobe session verifier test for return value https://git.kernel.org/bpf/bpf-next/c/a773e1d169db - [PATCHv9,bpf-next,10/13] selftests/bpf: Add kprobe session verifier test for return value https://git.kernel.org/bpf/bpf-next/c/7dd198ccbe43 - [PATCHv9,bpf-next,11/13] selftests/bpf: Add uprobe session single consumer test https://git.kernel.org/bpf/bpf-next/c/beab56332941 - [PATCHv9,bpf-next,12/13] selftests/bpf: Add uprobe sessions to consumer test https://git.kernel.org/bpf/bpf-next/c/f343d91be2cb - [PATCHv9,bpf-next,13/13] selftests/bpf: Add threads to consumer test https://git.kernel.org/bpf/bpf-next/c/90aac4610851 You are awesome, thank you!
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 Uprobe changes (on top of perf/core [1] are posted in here [2]. This patchset is based on bpf-next/master and will be merged once we pull [2] in bpf-next/master. v9 changes: - rebased on bpf-next/master with perf/core tag merged (thanks Peter!) thanks, jirka [1] git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git perf/core [2] https://lore.kernel.org/bpf/20241018202252.693462-1-jolsa@kernel.org/T/#ma43c549c4bf684ca1b17fa638aa5e7cbb46893e9 --- Jiri Olsa (13): bpf: Allow return values 0 and 1 for kprobe session bpf: Force uprobe bpf program to always return 0 bpf: Add support for uprobe multi session attach bpf: Add support for uprobe multi session context libbpf: Add support for uprobe multi session attach selftests/bpf: Add uprobe session test selftests/bpf: Add uprobe session cookie test selftests/bpf: Add uprobe session recursive test selftests/bpf: Add uprobe session verifier test for return value selftests/bpf: Add kprobe session verifier test for return value selftests/bpf: Add uprobe session single consumer test selftests/bpf: Add uprobe sessions to consumer test selftests/bpf: Add threads to consumer test include/uapi/linux/bpf.h | 1 + kernel/bpf/syscall.c | 9 ++- kernel/bpf/verifier.c | 10 +++ kernel/trace/bpf_trace.c | 57 +++++++++++---- tools/include/uapi/linux/bpf.h | 1 + tools/lib/bpf/bpf.c | 1 + tools/lib/bpf/libbpf.c | 19 ++++- tools/lib/bpf/libbpf.h | 4 +- tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c | 2 + tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c | 337 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------- tools/testing/selftests/bpf/progs/kprobe_multi_verifier.c | 31 ++++++++ tools/testing/selftests/bpf/progs/uprobe_multi_consumers.c | 6 +- tools/testing/selftests/bpf/progs/uprobe_multi_session.c | 71 ++++++++++++++++++ tools/testing/selftests/bpf/progs/uprobe_multi_session_cookie.c | 48 ++++++++++++ tools/testing/selftests/bpf/progs/uprobe_multi_session_recursive.c | 44 +++++++++++ tools/testing/selftests/bpf/progs/uprobe_multi_session_single.c | 44 +++++++++++ tools/testing/selftests/bpf/progs/uprobe_multi_verifier.c | 31 ++++++++ 17 files changed, 653 insertions(+), 63 deletions(-) create mode 100644 tools/testing/selftests/bpf/progs/kprobe_multi_verifier.c create mode 100644 tools/testing/selftests/bpf/progs/uprobe_multi_session.c create mode 100644 tools/testing/selftests/bpf/progs/uprobe_multi_session_cookie.c create mode 100644 tools/testing/selftests/bpf/progs/uprobe_multi_session_recursive.c create mode 100644 tools/testing/selftests/bpf/progs/uprobe_multi_session_single.c create mode 100644 tools/testing/selftests/bpf/progs/uprobe_multi_verifier.c