[Buildroot] [PATCH 1/1] package/linux-tools: add support for bpftool
James Hilliard
james.hilliard1 at gmail.com
Thu Jul 8 20:15:57 UTC 2021
This tool is available to be compiled since kernel 4.15.
Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
---
package/linux-tools/Config.in | 11 ++++++
package/linux-tools/linux-tool-bpftool.mk.in | 37 ++++++++++++++++++++
2 files changed, 48 insertions(+)
create mode 100644 package/linux-tools/linux-tool-bpftool.mk.in
diff --git a/package/linux-tools/Config.in b/package/linux-tools/Config.in
index ceb58c668a..87806bc75e 100644
--- a/package/linux-tools/Config.in
+++ b/package/linux-tools/Config.in
@@ -5,6 +5,17 @@ menu "Linux Kernel Tools"
config BR2_PACKAGE_LINUX_TOOLS
bool
+config BR2_PACKAGE_LINUX_TOOLS_BPFTOOL
+ bool "bpftool"
+ select BR2_PACKAGE_LINUX_TOOLS
+ select BR2_PACKAGE_BINUTILS
+ select BR2_PACKAGE_ELFUTILS
+ help
+ bpftool is a tool for for inspection and simple manipulation
+ of eBPF programs and maps.
+
+ These tools are available only from kernel version 4.15.
+
config BR2_PACKAGE_LINUX_TOOLS_CPUPOWER
bool "cpupower"
select BR2_PACKAGE_LINUX_TOOLS
diff --git a/package/linux-tools/linux-tool-bpftool.mk.in b/package/linux-tools/linux-tool-bpftool.mk.in
new file mode 100644
index 0000000000..0c4d3693a3
--- /dev/null
+++ b/package/linux-tools/linux-tool-bpftool.mk.in
@@ -0,0 +1,37 @@
+################################################################################
+#
+# bpftool
+#
+################################################################################
+
+LINUX_TOOLS += bpftool
+
+BPFTOOL_DEPENDENCIES = binutils elfutils
+
+ifeq ($(BR2_PACKAGE_LIBCAP),y)
+BPFTOOL_DEPENDENCIES += libcap
+endif
+
+ifeq ($(BR2_PACKAGE_ZLIB),y)
+BPFTOOL_DEPENDENCIES += zlib
+endif
+
+BPFTOOL_MAKE_OPTS = $(LINUX_MAKE_FLAGS)
+
+define BPFTOOL_BUILD_CMDS
+ $(Q)if ! grep install $(LINUX_DIR)/tools/bpf/bpftool/Makefile >/dev/null 2>&1 ; then \
+ echo "Your kernel version is too old and does not have install section in the bpf tools." ; \
+ echo "At least kernel 4.15 must be used." ; \
+ exit 1 ; \
+ fi
+
+ $(TARGET_MAKE_ENV) $(MAKE1) -C $(LINUX_DIR)/tools/bpf/bpftool \
+ $(BPFTOOL_MAKE_OPTS)
+endef
+
+define BPFTOOL_INSTALL_TARGET_CMDS
+ $(TARGET_MAKE_ENV) $(MAKE1) -C $(LINUX_DIR)/tools/bpf/bpftool \
+ $(BPFTOOL_MAKE_OPTS) \
+ DESTDIR=$(TARGET_DIR) \
+ install
+endef
--
2.25.1
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