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From: Song Liu <songliubraving@fb.com>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>
Cc: <ast@kernel.org>, <daniel@iogearbox.net>, <kernel-team@fb.com>,
	<john.fastabend@gmail.com>, <kpsingh@chromium.org>,
	Song Liu <songliubraving@fb.com>
Subject: [PATCH bpf-next 0/3] bpf: introduce bpf_get_task_stack_trace()
Date: Tue, 23 Jun 2020 00:07:59 -0700	[thread overview]
Message-ID: <20200623070802.2310018-1-songliubraving@fb.com> (raw)

This set introduces a new helper bpf_get_task_stack_trace(). The primary
use case is to dump all /proc/*/stack to seq_file via bpf_iter__task.

Song Liu (3):
  bpf: introduce helper bpf_get_task_stack_trace()
  bpf: allow %pB in bpf_seq_printf()
  selftests/bpf: add bpf_iter test with bpf_get_task_stack_trace()

 include/uapi/linux/bpf.h                      | 10 +++-
 kernel/trace/bpf_trace.c                      | 24 ++++++++-
 scripts/bpf_helpers_doc.py                    |  2 +
 tools/include/uapi/linux/bpf.h                | 10 +++-
 .../selftests/bpf/prog_tests/bpf_iter.c       | 17 +++++++
 .../selftests/bpf/progs/bpf_iter_task_stack.c | 50 +++++++++++++++++++
 6 files changed, 110 insertions(+), 3 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/progs/bpf_iter_task_stack.c

--
2.24.1

             reply	other threads:[~2020-06-23  7:08 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-23  7:07 Song Liu [this message]
2020-06-23  7:08 ` [PATCH bpf-next 1/3] bpf: introduce helper bpf_get_task_stack_trace() Song Liu
2020-06-23 15:19   ` Alexei Starovoitov
2020-06-23 16:59     ` Song Liu
2020-06-23 17:40       ` Song Liu
2020-06-23 18:41       ` Andrii Nakryiko
2020-06-23 15:22   ` Daniel Borkmann
2020-06-23 17:19     ` Song Liu
2020-06-23 18:45   ` Andrii Nakryiko
2020-06-23 22:53     ` Song Liu
2020-06-23  7:08 ` [PATCH bpf-next 2/3] bpf: allow %pB in bpf_seq_printf() Song Liu
2020-06-23 15:29   ` Daniel Borkmann
2020-06-23 17:19     ` Song Liu
2020-06-23  7:08 ` [PATCH bpf-next 3/3] selftests/bpf: add bpf_iter test with bpf_get_task_stack_trace() Song Liu
2020-06-23 18:57   ` Yonghong Song
2020-06-23 22:07     ` Song Liu
2020-06-23 22:27       ` Yonghong Song
2020-06-24 20:37         ` Song Liu
2020-06-25  5:29           ` Yonghong Song

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