[PATCH 3/3] tools bpftool: Display license GPL compatible in prog show/list

[Jiri Olsa]

Display the license GPL NON/compatible string in bpftool
prog command, like:

  # bpftool prog list
  3: kprobe  name func_begin  tag 57cd311f2e27366b license GPL NON compatible
          loaded_at Apr 25/11:20  uid 0
          xlated 16B  not jited  memlock 4096B

  # bpftool prog list
  4: kprobe  name func_begin  tag 57cd311f2e27366b license GPL compatible
          loaded_at Apr 25/11:20  uid 0
          xlated 16B  not jited  memlock 4096B

  # bpftool prog show --json
  [{"id":3,"type":"kprobe","name":"func ... ,"gpl_compatible":false,"loade...

Signed-off-by: Jiri Olsa <jo...@kernel.org>
---
 tools/bpf/bpftool/prog.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index 548adb9b7317..b8b4341a1342 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -235,6 +235,8 @@ static void print_prog_json(struct bpf_prog_info *info, int 
fd)
                     info->tag[0], info->tag[1], info->tag[2], info->tag[3],
                     info->tag[4], info->tag[5], info->tag[6], info->tag[7]);
 
+       jsonw_bool_field(json_wtr, "gpl_compatible", info->gpl_compatible);
+
        print_dev_json(info->ifindex, info->netns_dev, info->netns_ino);
 
        if (info->load_time) {
@@ -295,6 +297,7 @@ static void print_prog_plain(struct bpf_prog_info *info, 
int fd)
        printf("tag ");
        fprint_hex(stdout, info->tag, BPF_TAG_SIZE, "");
        print_dev_plain(info->ifindex, info->netns_dev, info->netns_ino);
+       printf(" license GPL %scompatible", info->gpl_compatible ? "" : "NON ");
        printf("\n");
 
        if (info->load_time) {
-- 
2.13.6