From: Qais Yousef <qais.yousef@arm.com>
To: netdev@vger.kernel.org, bpf@vger.kernel.org
Cc: Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Yonghong Song <yhs@fb.com>, Steven Rostedt <rostedt@goodmis.org>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
linux-kernel@vger.kernel.org, Qais Yousef <qais.yousef@arm.com>
Subject: [PATCH v3 bpf-next 0/2] Allow attaching to bare tracepoints
Date: Tue, 19 Jan 2021 12:22:35 +0000 [thread overview]
Message-ID: <20210119122237.2426878-1-qais.yousef@arm.com> (raw)
Changes in v3:
* Fix not returning error value correctly in
trigger_module_test_write() (Yonghong)
* Add Yonghong acked-by to patch 1.
Changes in v2:
* Fix compilation error. (Andrii)
* Make the new test use write() instead of read() (Andrii)
Add some missing glue logic to teach bpf about bare tracepoints - tracepoints
without any trace event associated with them.
Bare tracepoints are declare with DECLARE_TRACE(). Full tracepoints are declare
with TRACE_EVENT().
BPF can attach to these tracepoints as RAW_TRACEPOINT() only as there're no
events in tracefs created with them.
Qais Yousef (2):
trace: bpf: Allow bpf to attach to bare tracepoints
selftests: bpf: Add a new test for bare tracepoints
Documentation/bpf/bpf_design_QA.rst | 6 +++++
include/trace/bpf_probe.h | 12 +++++++--
.../bpf/bpf_testmod/bpf_testmod-events.h | 6 +++++
.../selftests/bpf/bpf_testmod/bpf_testmod.c | 21 ++++++++++++++-
.../selftests/bpf/bpf_testmod/bpf_testmod.h | 6 +++++
.../selftests/bpf/prog_tests/module_attach.c | 27 +++++++++++++++++++
.../selftests/bpf/progs/test_module_attach.c | 10 +++++++
7 files changed, 85 insertions(+), 3 deletions(-)
--
2.25.1
next reply other threads:[~2021-01-19 14:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-19 12:22 Qais Yousef [this message]
2021-01-19 12:22 ` [PATCH v3 bpf-next 1/2] trace: bpf: Allow bpf to attach to bare tracepoints Qais Yousef
2021-01-19 12:22 ` [PATCH v3 bpf-next 2/2] selftests: bpf: Add a new test for " Qais Yousef
2021-01-19 15:41 ` Yonghong Song
2021-01-19 21:06 ` [PATCH v3 bpf-next 0/2] Allow attaching to " Alexei Starovoitov
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