| Message ID | 20240917085024.765883-1-jolsa@kernel.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | uprobe, bpf: Add session support | expand |
Hello: This series was applied to bpf/bpf.git (master) by Andrii Nakryiko <andrii@kernel.org>: On Tue, 17 Sep 2024 10:50:10 +0200 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: - [PATCHv4,01/14] uprobe: Add data pointer to consumer handlers (no matching commit) - [PATCHv4,02/14] uprobe: Add support for session consumer (no matching commit) - [PATCHv4,03/14] bpf: Add support for uprobe multi session attach (no matching commit) - [PATCHv4,04/14] bpf: Add support for uprobe multi session context (no matching commit) - [PATCHv4,05/14] bpf: Allow return values 0 and 1 for uprobe/kprobe session (no matching commit) - [PATCHv4,06/14] libbpf: Fix uretprobe.multi.s programs auto attachment https://git.kernel.org/bpf/bpf/c/8c8b47597403 - [PATCHv4,07/14] libbpf: Add support for uprobe multi session attach (no matching commit) - [PATCHv4,08/14] selftests/bpf: Add uprobe session test (no matching commit) - [PATCHv4,09/14] selftests/bpf: Add uprobe session cookie test (no matching commit) - [PATCHv4,10/14] selftests/bpf: Add uprobe session recursive test (no matching commit) - [PATCHv4,11/14] selftests/bpf: Add uprobe session verifier test for return value (no matching commit) - [PATCHv4,12/14] selftests/bpf: Add kprobe session verifier test for return value (no matching commit) - [PATCHv4,13/14] selftests/bpf: Add uprobe session single consumer test (no matching commit) - [PATCHv4,14/14] selftests/bpf: Add consumers stress test on single uprobe (no matching commit) 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 On more details please see patch #2. It's based on Peter's perf/core: git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git perf/core v4 changes: - rework the uprobe consumer allocation based on Oleg's suggestions [Oleg] - moved docs about handler return values to uprobes.h header [Oleg] - use libbpf's attach_uprobe_multi for session attach [Andrii] - make verifier to check session return values [Andrii] - various small review changes - added more tests - added acks patch #6 is already in bpf-next tree, but we need that as dependency thanks, jirka --- Jiri Olsa (14): uprobe: Add data pointer to consumer handlers uprobe: Add support for session consumer bpf: Add support for uprobe multi session attach bpf: Add support for uprobe multi session context bpf: Allow return values 0 and 1 for uprobe/kprobe session libbpf: Fix uretprobe.multi.s programs auto attachment 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 consumers stress test on single uprobe include/linux/uprobes.h | 29 +++++++++- include/uapi/linux/bpf.h | 1 + kernel/bpf/syscall.c | 9 ++- kernel/bpf/verifier.c | 10 ++++ kernel/events/uprobes.c | 150 ++++++++++++++++++++++++++++++++++++++++---------- kernel/trace/bpf_trace.c | 66 ++++++++++++++++------ kernel/trace/trace_uprobe.c | 12 ++-- tools/include/uapi/linux/bpf.h | 1 + tools/lib/bpf/bpf.c | 1 + tools/lib/bpf/libbpf.c | 22 +++++++- tools/lib/bpf/libbpf.h | 4 +- tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c | 2 +- tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c | 2 + tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c | 252 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tools/testing/selftests/bpf/progs/kprobe_multi_verifier.c | 31 +++++++++++ tools/testing/selftests/bpf/progs/uprobe_multi_consumer_stress.c | 29 ++++++++++ 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 +++++++++++ 21 files changed, 798 insertions(+), 61 deletions(-) create mode 100644 tools/testing/selftests/bpf/progs/kprobe_multi_verifier.c create mode 100644 tools/testing/selftests/bpf/progs/uprobe_multi_consumer_stress.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