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-rw-r--r--tools/bpf/bpftool/Makefile6
-rw-r--r--tools/bpf/bpftool/main.c21
2 files changed, 23 insertions, 4 deletions
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index 83369f55df61..94b2c2f4ad43 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -39,10 +39,6 @@ LIBBPF_BOOTSTRAP := $(LIBBPF_BOOTSTRAP_OUTPUT)libbpf.a
LIBBPF_INTERNAL_HDRS := $(addprefix $(LIBBPF_HDRS_DIR)/,hashmap.h nlattr.h)
LIBBPF_BOOTSTRAP_INTERNAL_HDRS := $(addprefix $(LIBBPF_BOOTSTRAP_HDRS_DIR)/,hashmap.h)
-ifeq ($(BPFTOOL_VERSION),)
-BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
-endif
-
$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR) $(LIBBPF_BOOTSTRAP_HDRS_DIR):
$(QUIET_MKDIR)mkdir -p $@
@@ -83,7 +79,9 @@ CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
-I$(srctree)/kernel/bpf/ \
-I$(srctree)/tools/include \
-I$(srctree)/tools/include/uapi
+ifneq ($(BPFTOOL_VERSION),)
CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
+endif
ifneq ($(EXTRA_CFLAGS),)
CFLAGS += $(EXTRA_CFLAGS)
endif
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 0f2f8de514a4..e81227761f5d 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -71,6 +71,17 @@ static int do_help(int argc, char **argv)
return 0;
}
+#ifndef BPFTOOL_VERSION
+/* bpftool's major and minor version numbers are aligned on libbpf's. There is
+ * an offset of 6 for the version number, because bpftool's version was higher
+ * than libbpf's when we adopted this scheme. The patch number remains at 0
+ * for now. Set BPFTOOL_VERSION to override.
+ */
+#define BPFTOOL_MAJOR_VERSION (LIBBPF_MAJOR_VERSION + 6)
+#define BPFTOOL_MINOR_VERSION LIBBPF_MINOR_VERSION
+#define BPFTOOL_PATCH_VERSION 0
+#endif
+
static int do_version(int argc, char **argv)
{
#ifdef HAVE_LIBBFD_SUPPORT
@@ -88,7 +99,12 @@ static int do_version(int argc, char **argv)
jsonw_start_object(json_wtr); /* root object */
jsonw_name(json_wtr, "version");
+#ifdef BPFTOOL_VERSION
jsonw_printf(json_wtr, "\"%s\"", BPFTOOL_VERSION);
+#else
+ jsonw_printf(json_wtr, "\"%d.%d.%d\"", BPFTOOL_MAJOR_VERSION,
+ BPFTOOL_MINOR_VERSION, BPFTOOL_PATCH_VERSION);
+#endif
jsonw_name(json_wtr, "libbpf_version");
jsonw_printf(json_wtr, "\"%d.%d\"",
libbpf_major_version(), libbpf_minor_version());
@@ -104,7 +120,12 @@ static int do_version(int argc, char **argv)
} else {
unsigned int nb_features = 0;
+#ifdef BPFTOOL_VERSION
printf("%s v%s\n", bin_name, BPFTOOL_VERSION);
+#else
+ printf("%s v%d.%d.%d\n", bin_name, BPFTOOL_MAJOR_VERSION,
+ BPFTOOL_MINOR_VERSION, BPFTOOL_PATCH_VERSION);
+#endif
printf("using libbpf %s\n", libbpf_version_string());
printf("features:");
if (has_libbfd) {