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package/linux-tools: add support for bpftool

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This tool is available to be compiled since kernel 4.15.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
James Hilliard 2021-07-08 14:15:57 -06:00 committed by Thomas Petazzoni
parent 14296940be
commit d41d796568
2 changed files with 59 additions and 0 deletions
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22
package/linux-tools/Config.in
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@ -5,6 +5,28 @@ menu "Linux Kernel Tools"
config BR2_PACKAGE_LINUX_TOOLS
bool
config BR2_PACKAGE_LINUX_TOOLS_BPFTOOL
bool "bpftool"
depends on !BR2_nios2 # binutils
depends on BR2_USE_WCHAR # binutils, elfutils
depends on !BR2_STATIC_LIBS # elfutils
depends on BR2_TOOLCHAIN_HAS_THREADS # elfutils
depends on BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_GLIBC # elfutils
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.
comment "bpftool needs a uClibc or glibc toolchain w/ wchar, dynamic library, threads"
depends on !BR2_nios2
depends on !BR2_USE_WCHAR || BR2_STATIC_LIBS \
|| !BR2_TOOLCHAIN_HAS_THREADS \
|| !(BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_GLIBC)
config BR2_PACKAGE_LINUX_TOOLS_CPUPOWER
bool "cpupower"
select BR2_PACKAGE_LINUX_TOOLS

37
package/linux-tools/linux-tool-bpftool.mk.in Normal file
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@ -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