From e47d0bf800e8d7f4de501987b2788c7f2ce22cd1 Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Mon, 15 Nov 2021 16:04:48 -0800 Subject: [PATCH] bpftool: Add current libbpf_strict mode to version output + bpftool --legacy --version bpftool v5.15.0 features: libbfd, skeletons + bpftool --version bpftool v5.15.0 features: libbfd, libbpf_strict, skeletons + bpftool --legacy --help Usage: bpftool [OPTIONS] OBJECT { COMMAND | help } bpftool batch file FILE bpftool version OBJECT := { prog | map | link | cgroup | perf | net | feature | btf | gen | struct_ops | iter } OPTIONS := { {-j|--json} [{-p|--pretty}] | {-d|--debug} | {-l|--legacy} | {-V|--version} } + bpftool --help Usage: bpftool [OPTIONS] OBJECT { COMMAND | help } bpftool batch file FILE bpftool version OBJECT := { prog | map | link | cgroup | perf | net | feature | btf | gen | struct_ops | iter } OPTIONS := { {-j|--json} [{-p|--pretty}] | {-d|--debug} | {-l|--legacy} | {-V|--version} } + bpftool --legacy Usage: bpftool [OPTIONS] OBJECT { COMMAND | help } bpftool batch file FILE bpftool version OBJECT := { prog | map | link | cgroup | perf | net | feature | btf | gen | struct_ops | iter } OPTIONS := { {-j|--json} [{-p|--pretty}] | {-d|--debug} | {-l|--legacy} | {-V|--version} } + bpftool Usage: bpftool [OPTIONS] OBJECT { COMMAND | help } bpftool batch file FILE bpftool version OBJECT := { prog | map | link | cgroup | perf | net | feature | btf | gen | struct_ops | iter } OPTIONS := { {-j|--json} [{-p|--pretty}] | {-d|--debug} | {-l|--legacy} | {-V|--version} } + bpftool --legacy version bpftool v5.15.0 features: libbfd, skeletons + bpftool version bpftool v5.15.0 features: libbfd, libbpf_strict, skeletons + bpftool --json --legacy version {"version":"5.15.0","features":{"libbfd":true,"libbpf_strict":false,"skeletons":true}} + bpftool --json version {"version":"5.15.0","features":{"libbfd":true,"libbpf_strict":true,"skeletons":true}} Suggested-by: Quentin Monnet Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann Reviewed-by: Quentin Monnet Link: https://lore.kernel.org/bpf/20211116000448.2918854-1-sdf@google.com --- tools/bpf/bpftool/main.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c index 473791e..8b71500 100644 --- a/tools/bpf/bpftool/main.c +++ b/tools/bpf/bpftool/main.c @@ -93,6 +93,7 @@ static int do_version(int argc, char **argv) jsonw_name(json_wtr, "features"); jsonw_start_object(json_wtr); /* features */ jsonw_bool_field(json_wtr, "libbfd", has_libbfd); + jsonw_bool_field(json_wtr, "libbpf_strict", !legacy_libbpf); jsonw_bool_field(json_wtr, "skeletons", has_skeletons); jsonw_end_object(json_wtr); /* features */ @@ -106,6 +107,10 @@ static int do_version(int argc, char **argv) printf(" libbfd"); nb_features++; } + if (!legacy_libbpf) { + printf("%s libbpf_strict", nb_features++ ? "," : ""); + nb_features++; + } if (has_skeletons) printf("%s skeletons", nb_features++ ? "," : ""); printf("\n"); @@ -400,6 +405,7 @@ int main(int argc, char **argv) { "legacy", no_argument, NULL, 'l' }, { 0 } }; + bool version_requested = false; int opt, ret; last_do_help = do_help; @@ -414,7 +420,8 @@ int main(int argc, char **argv) options, NULL)) >= 0) { switch (opt) { case 'V': - return do_version(argc, argv); + version_requested = true; + break; case 'h': return do_help(argc, argv); case 'p': @@ -479,6 +486,9 @@ int main(int argc, char **argv) if (argc < 0) usage(); + if (version_requested) + return do_version(argc, argv); + ret = cmd_select(cmds, argc, argv, do_help); if (json_output) -- 2.7.4