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tools/bpftool: show btf id in program information
Let's add a way to know whether a program has btf context. Patch adds 'btf_id' in the output of program listing. When btf_id is present, it means program has btf context. Sample output: user@test# bpftool prog list 25: xdp name xdp_prog1 tag 539ec6ce11b52f98 gpl loaded_at 2019-04-10T11:44:20+0900 uid 0 xlated 488B not jited memlock 4096B map_ids 23 btf_id 1 Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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1 changed files with 6 additions and 0 deletions
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@ -249,6 +249,9 @@ static void print_prog_json(struct bpf_prog_info *info, int fd)
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if (info->nr_map_ids)
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show_prog_maps(fd, info->nr_map_ids);
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if (info->btf_id)
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jsonw_int_field(json_wtr, "btf_id", info->btf_id);
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if (!hash_empty(prog_table.table)) {
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struct pinned_obj *obj;
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@ -319,6 +322,9 @@ static void print_prog_plain(struct bpf_prog_info *info, int fd)
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}
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}
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if (info->btf_id)
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printf("\n\tbtf_id %d\n", info->btf_id);
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printf("\n");
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}
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