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Date: Thu, 26 Apr 2018 10:18:01 +0200 From: Jiri Olsa <jolsa@...hat.com> To: Daniel Borkmann <daniel@...earbox.net> Cc: Jakub Kicinski <kubakici@...pl>, Jiri Olsa <jolsa@...nel.org>, Alexei Starovoitov <ast@...nel.org>, lkml <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org, Quentin Monnet <quentin.monnet@...ronome.com> Subject: [PATCHv3 3/3] tools bpftool: Display license GPL compatible in prog show/list On Thu, Apr 26, 2018 at 09:53:26AM +0200, Daniel Borkmann wrote: > On 04/26/2018 09:39 AM, Jiri Olsa wrote: > > On Wed, Apr 25, 2018 at 11:14:30PM +0200, Daniel Borkmann wrote: > >> On 04/25/2018 11:03 PM, Jakub Kicinski wrote: > >>> On Wed, 25 Apr 2018 19:41:08 +0200, Jiri Olsa wrote: > >>>> @@ -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 "); > >>> > >>> 3 nit picks: > >>> > >>> Other "fields" are separated by two spaces between each other: > >>> > >>> 4: kprobe name func_begin tag 57cd311f2e27366b license GPL compatible > >>> ^^ ^^ X > >>> loaded_at Apr 25/11:20 uid 0 > >>> ^^ > >>> xlated 16B not jited memlock 4096B > >>> ^^ ^^ > >>> > >>> Could you also update the example outputs in the man page: > >>> > >>> tools/bpf/bpftool/Documentation/bpftool-prog.rst > >>> > >>> Sorry about the bike shedding but I would also vote for: > >>> > >>> "[not] GPL compatible" > >>> > >>> rather than > >>> > >>> "license GPL [NON] compatible" > >>> > >>> for brevity.. > >> > >> While we're at it, can we also squeeze this whole thing a bit? Feels like > >> huge string wasted for very little information compared to the rest of the > >> dump. Just append the string "gpl" at the end of the line if info->gpl_compatible > >> is set, otherwise just add nothing. This also allows to naturally grep > >> for it e.g. `bpftool p | grep gpl` if you need a quick summary. > > > > that's fine with me.. so 'gpl' in here: > > > > 5: tracepoint name func tag 57cd311f2e27366b gpl > > loaded_at Apr 26/09:37 uid 0 > > xlated 16B not jited memlock 4096B > > > > and keeping tyhe whole name in json output: > > > > [{ > > "id": 5, > > "type": "tracepoint", > > "name": "func", > > "tag": "57cd311f2e27366b", > > "gpl_compatible": true, > > "loaded_at": "Apr 26/09:37", > > "uid": 0, > > "bytes_xlated": 16, > > "jited": false, > > "bytes_memlock": 4096 > > } > > ] > > > > how about that? > > Sounds good, thanks Jiri! v3 of the last patch attached, the branch is also updated thanks, jirka --- Display the license "gpl" string in bpftool prog command, like: # bpftool prog list 5: tracepoint name func tag 57cd311f2e27366b gpl loaded_at Apr 26/09:37 uid 0 xlated 16B not jited memlock 4096B # bpftool --json --pretty prog show [{ "id": 5, "type": "tracepoint", "name": "func", "tag": "57cd311f2e27366b", "gpl_compatible": true, "loaded_at": "Apr 26/09:37", "uid": 0, "bytes_xlated": 16, "jited": false, "bytes_memlock": 4096 } ] Signed-off-by: Jiri Olsa <jolsa@...nel.org> --- tools/bpf/bpftool/Documentation/bpftool-prog.rst | 3 ++- tools/bpf/bpftool/prog.c | 3 +++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/tools/bpf/bpftool/Documentation/bpftool-prog.rst b/tools/bpf/bpftool/Documentation/bpftool-prog.rst index 67ca6c69376c..43d34a5c3ec5 100644 --- a/tools/bpf/bpftool/Documentation/bpftool-prog.rst +++ b/tools/bpf/bpftool/Documentation/bpftool-prog.rst @@ -95,7 +95,7 @@ EXAMPLES **# bpftool prog show** :: - 10: xdp name some_prog tag 005a3d2123620c8b + 10: xdp name some_prog tag 005a3d2123620c8b gpl loaded_at Sep 29/20:11 uid 0 xlated 528B jited 370B memlock 4096B map_ids 10 @@ -108,6 +108,7 @@ EXAMPLES "id": 10, "type": "xdp", "tag": "005a3d2123620c8b", + "gpl_compatible": true, "loaded_at": "Sep 29/20:11", "uid": 0, "bytes_xlated": 528, diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c index 548adb9b7317..e71a0a11afde 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("%s", info->gpl_compatible ? " gpl" : ""); printf("\n"); if (info->load_time) { -- 2.13.6
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