[bpf-next,0/4] introduce bpf_iter for task_vma

Message

Song Liu Dec. 12, 2020, 2:48 a.m. UTC

This set introduces bpf_iter for task_vma, which can be used to generate
information similar to /proc/pid/maps or /proc/pid/smaps. Patch 4/4 adds
an example that mimics /proc/pid/maps.

Song Liu (4):
  bpf: introduce task_vma bpf_iter
  bpf: allow bpf_d_path in sleepable bpf_iter program
  libbpf: introduce section "iter.s/" for sleepable bpf_iter program
  selftests/bpf: add test for bpf_iter_task_vma

 include/linux/bpf.h                           |   2 +-
 include/uapi/linux/bpf.h                      |   7 +
 kernel/bpf/task_iter.c                        | 193 +++++++++++++++++-
 kernel/trace/bpf_trace.c                      |   5 +
 tools/lib/bpf/libbpf.c                        |   5 +
 .../selftests/bpf/prog_tests/bpf_iter.c       | 106 +++++++++-
 tools/testing/selftests/bpf/progs/bpf_iter.h  |   9 +
 .../selftests/bpf/progs/bpf_iter_task_vma.c   |  55 +++++
 8 files changed, 370 insertions(+), 12 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c

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2.24.1