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    SubjectRe: [PATCH v9 perf,bpf 07/15] perf, bpf: save bpf_prog_info information as headers to perf.data
    On Mon, Mar 11, 2019 at 10:30:43PM -0700, Song Liu wrote:

    SNIP

    > +static void print_bpf_prog_info(struct feat_fd *ff, FILE *fp)
    > +{
    > + struct perf_env *env = &ff->ph->env;
    > + struct rb_root *root;
    > + struct rb_node *next;
    > +
    > + down_read(&env->bpf_progs.lock);
    > +
    > + root = &env->bpf_progs.infos;
    > + next = rb_first(root);
    > +
    > + while (next) {
    > + struct bpf_prog_info_node *node;
    > +
    > + node = rb_entry(next, struct bpf_prog_info_node, rb_node);
    > + next = rb_next(&node->rb_node);
    > + fprintf(fp, "# bpf_prog_info of id %u\n",
    > + node->info_linear->info.id);

    so report displays bpf prog dso/name like:

    0.02% ls bpf_prog_c80ffe554aba1bec_syscall_enter_o [k] bpf_prog_c80ffe554aba1bec_syscall_enter_o ▒

    and 'perf report --header-only -I' shows:


    # bpf_prog_info of id 17
    # bpf_prog_info of id 18
    # bpf_prog_info of id 19
    # bpf_prog_info of id 20
    # bpf_prog_info of id 21
    # bpf_prog_info of id 22
    # bpf_prog_info of id 25
    # bpf_prog_info of id 26
    # bpf_prog_info of id 34
    # bpf_prog_info of id 35

    could we have something more detailed like bpftool output:

    34: tracepoint name syscall_enter_o tag c80ffe554aba1bec gpl
    loaded_at 2019-03-12T14:02:03+0100 uid 0
    xlated 360B jited 232B memlock 4096B map_ids 30

    35: tracepoint name syscall_enter_o tag ada5ccbe5576399c gpl
    loaded_at 2019-03-12T14:02:03+0100 uid 0
    xlated 352B jited 228B memlock 4096B map_ids 30


    could be on top of this patchset

    jirka

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