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| author | Quentin Monnet <quentin.monnet@netronome.com> | 2017-10-20 00:46:26 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-22 03:11:32 +0200 |
| commit | 821cfbb0dcfbb24506dc6958361ca2b80b928049 (patch) | |
| tree | 3c15e3ad7cc63f5a05994983138b36e1ad4a3c1e /tools | |
| parent | tools: bpftool: show that `opcodes` or `file FILE` should be exclusive (diff) | |
| download | linux-821cfbb0dcfbb24506dc6958361ca2b80b928049.tar.xz linux-821cfbb0dcfbb24506dc6958361ca2b80b928049.zip | |
tools: bpftool: add a command to display bpftool version
This command can be used to print the version of the tool, which is in
fact the version from Linux taken from usr/include/linux/version.h.
Example usage:
$ bpftool version
bpftool v4.14.0
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/bpf/bpftool/Documentation/bpftool.rst | 2 | ||||
| -rw-r--r-- | tools/bpf/bpftool/main.c | 14 |
2 files changed, 15 insertions, 1 deletions
diff --git a/tools/bpf/bpftool/Documentation/bpftool.rst b/tools/bpf/bpftool/Documentation/bpftool.rst index f1df1893fb54..45ad8baf1915 100644 --- a/tools/bpf/bpftool/Documentation/bpftool.rst +++ b/tools/bpf/bpftool/Documentation/bpftool.rst @@ -14,6 +14,8 @@ SYNOPSIS **bpftool** batch file *FILE* + **bpftool** version + *OBJECT* := { **map** | **program** } *MAP-COMMANDS* := diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c index 8662199ee050..814d19e1b53f 100644 --- a/tools/bpf/bpftool/main.c +++ b/tools/bpf/bpftool/main.c @@ -37,6 +37,7 @@ #include <ctype.h> #include <errno.h> #include <linux/bpf.h> +#include <linux/version.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -62,13 +63,23 @@ static int do_help(int argc, char **argv) fprintf(stderr, "Usage: %s OBJECT { COMMAND | help }\n" " %s batch file FILE\n" + " %s version\n" "\n" " OBJECT := { prog | map }\n", - bin_name, bin_name); + bin_name, bin_name, bin_name); return 0; } +static int do_version(int argc, char **argv) +{ + printf("%s v%d.%d.%d\n", bin_name, + LINUX_VERSION_CODE >> 16, + LINUX_VERSION_CODE >> 8 & 0xf, + LINUX_VERSION_CODE & 0xf); + return 0; +} + int cmd_select(const struct cmd *cmds, int argc, char **argv, int (*help)(int argc, char **argv)) { @@ -128,6 +139,7 @@ static const struct cmd cmds[] = { { "batch", do_batch }, { "prog", do_prog }, { "map", do_map }, + { "version", do_version }, { 0 } }; |