On 12/15/20 3:36 PM, Song Liu wrote:
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
I did not see an example for /proc/pid/smaps. It would be good if you can cover smaps as well since it is used by a lot of people.
an example that mimics /proc/pid/maps. Changes v1 => v2: 1. Small fixes in task_iter.c and the selftests. (Yonghong) 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 +- kernel/bpf/task_iter.c | 205 +++++++++++++++++- 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 +++++ 7 files changed, 375 insertions(+), 12 deletions(-) create mode 100644 tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c -- 2.24.1
