diff options
| author | Roman Gushchin <guro@fb.com> | 2017-12-27 19:16:28 +0000 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2017-12-30 01:07:36 +0100 |
| commit | 4bfe3bd3cc351efd1d51b3258b060e9445533888 (patch) | |
| tree | ab2beb6bab33de56eb5c407b864cfb783b0a1ca5 | |
| parent | 6bb8824732f69de0f233ae6b1a8158e149627b38 (diff) | |
tools/bpftool: use version from the kernel source tree
Bpftool determines it's own version based on the kernel
version, which is picked from the linux/version.h header.
It's strange to use the version of the installed kernel
headers, and makes much more sense to use the version
of the actual source tree, where bpftool sources are.
Fix this by building kernelversion target and use
the resulting string as bpftool version.
Example:
before:
$ bpftool version
bpftool v4.14.6
after:
$ bpftool version
bpftool v4.15.0-rc3
$bpftool version --json
{"version":"4.15.0-rc3"}
Signed-off-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
| -rw-r--r-- | tools/bpf/bpftool/Makefile | 3 | ||||
| -rw-r--r-- | tools/bpf/bpftool/main.c | 13 |
2 files changed, 5 insertions, 11 deletions
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index 3f17ad317512..f8f31a8d9269 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -23,6 +23,8 @@ endif LIBBPF = $(BPF_PATH)libbpf.a +BPFTOOL_VERSION=$(shell make --no-print-directory -sC ../../.. kernelversion) + $(LIBBPF): FORCE $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) $(OUTPUT)libbpf.a FEATURES_DUMP=$(FEATURE_DUMP_EXPORT) @@ -38,6 +40,7 @@ CC = gcc CFLAGS += -O2 CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wshadow CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi -I$(srctree)/tools/include -I$(srctree)/tools/lib/bpf -I$(srctree)/kernel/bpf/ +CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"' LIBS = -lelf -lbfd -lopcodes $(LIBBPF) INSTALL ?= install diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c index ecd53ccf1239..3a0396d87c42 100644 --- a/tools/bpf/bpftool/main.c +++ b/tools/bpf/bpftool/main.c @@ -38,7 +38,6 @@ #include <errno.h> #include <getopt.h> #include <linux/bpf.h> -#include <linux/version.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -95,21 +94,13 @@ static int do_help(int argc, char **argv) static int do_version(int argc, char **argv) { - unsigned int version[3]; - - version[0] = LINUX_VERSION_CODE >> 16; - version[1] = LINUX_VERSION_CODE >> 8 & 0xf; - version[2] = LINUX_VERSION_CODE & 0xf; - if (json_output) { jsonw_start_object(json_wtr); jsonw_name(json_wtr, "version"); - jsonw_printf(json_wtr, "\"%u.%u.%u\"", - version[0], version[1], version[2]); + jsonw_printf(json_wtr, "\"%s\"", BPFTOOL_VERSION); jsonw_end_object(json_wtr); } else { - printf("%s v%u.%u.%u\n", bin_name, - version[0], version[1], version[2]); + printf("%s v%s\n", bin_name, BPFTOOL_VERSION); } return 0; } |