The framework for kernel-selftest, this framework contains many aspect, such as bpf, we should enable bpf kernel feature, this enable bpf syscall.
How to test? On target, enter directory: /opt/kselftest/bpf/, run "./test_align 0 11" this command test all the bpf align testcases. Results: Test 0: mov ... PASS Test 1: shift ... PASS Test 2: addsub ... PASS Test 3: mul ... PASS Test 4: unknown shift ... PASS Test 5: unknown mul ... PASS Test 6: packet const offset ... PASS Test 7: packet variable offset ... PASS Test 8: packet variable offset 2 ... PASS Test 9: dubious pointer arithmetic ... PASS Test 10: variable subtraction ... PASS Test 11: pointer variable subtraction ... PASS Results: 12 pass 0 fail Signed-off-by: Dengke Du <dengke...@windriver.com> --- .../kernel-selftest/kernel-selftest.bb | 94 ++++++++++++++++++++++ meta/recipes-kernel/linux/linux-yocto.inc | 1 + 2 files changed, 95 insertions(+) create mode 100644 meta/recipes-kernel/kernel-selftest/kernel-selftest.bb diff --git a/meta/recipes-kernel/kernel-selftest/kernel-selftest.bb b/meta/recipes-kernel/kernel-selftest/kernel-selftest.bb new file mode 100644 index 0000000..c976e7b --- /dev/null +++ b/meta/recipes-kernel/kernel-selftest/kernel-selftest.bb @@ -0,0 +1,94 @@ +SUMMARY = "Kernel selftest for Linux" +DESCRIPTION = "Kernel selftest for Linux" +LICENSE = "GPLv2" + +DEPENDS = " \ + elfutils \ + libcap \ + libcap-ng \ + fuse \ + util-linux \ + rsync-native \ +" + +do_configure[depends] += "virtual/kernel:do_shared_workdir" + +inherit linux-kernel-base kernel-arch + +do_populate_lic[depends] += "virtual/kernel:do_patch" + +inherit kernelsrc + +S = "${WORKDIR}/${BP}" + +# The LDFLAGS is required or some old kernels fails due missing +# symbols and this is preferred than requiring patches to every old +# supported kernel. +LDFLAGS="-ldl -lutil" + +EXTRA_OEMAKE = '\ + CROSS_COMPILE=${TARGET_PREFIX} \ + ARCH=${ARCH} \ + CC="${CC}" \ + AR="${AR}" \ + LD="${LD}" \ + EXTRA_CFLAGS="-ldw" \ + ${PACKAGECONFIG_CONFARGS} \ +' + +EXTRA_OEMAKE += "\ + 'DESTDIR=${D}' \ + 'prefix=${prefix}' \ + 'bindir=${bindir}' \ + 'sharedir=${datadir}' \ + 'sysconfdir=${sysconfdir}' \ + 'sharedir=${@os.path.relpath(datadir, prefix)}' \ + 'mandir=${@os.path.relpath(mandir, prefix)}' \ + 'infodir=${@os.path.relpath(infodir, prefix)}' \ +" + +KERNEL_SELFTEST_SRC ?= "Makefile \ + include \ + tools \ +" + +# Add bpf selftest now, other can be added later. +do_compile () { + # Linux kernel build system is expected to do the right thing + unset CFLAGS + oe_runmake -C ${S}/tools/testing/selftests/bpf +} + +# On target, enter /opt/kselftest/bpf directory, run "./test_align 0 11" +# The test_align testcase test the bpf instruction set, the testcase defined here: +# https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/tree/tools/testing/selftests/bpf/test_align.c#n47 +do_install () { + # Linux kernel build system is expected to do the right thing + unset CFLAGS + mkdir -p ${D}/opt/kselftest/bpf + install -m 0755 ${B}/tools/testing/selftests/bpf/test_align ${D}/opt/kselftest/bpf/ +} + +do_configure[prefuncs] += "copy_perf_source_from_kernel remove_clang_related" +python copy_perf_source_from_kernel() { + sources = (d.getVar("KERNEL_SELFTEST_SRC") or "").split() + src_dir = d.getVar("STAGING_KERNEL_DIR") + dest_dir = d.getVar("S") + bb.utils.mkdirhier(dest_dir) + for s in sources: + src = oe.path.join(src_dir, s) + dest = oe.path.join(dest_dir, s) + if os.path.isdir(src): + oe.path.copytree(src, dest) + else: + bb.utils.copyfile(src, dest) +} + +remove_clang_related() { + sed -i -e '/test_pkt_access/d' -e '/test_pkt_md_access/d' ${S}/tools/testing/selftests/bpf/Makefile +} + +PACKAGE_ARCH = "${MACHINE_ARCH}" + +INHIBIT_PACKAGE_DEBUG_SPLIT="1" +FILES_${PN} += "/opt/kselftest/bpf/*" diff --git a/meta/recipes-kernel/linux/linux-yocto.inc b/meta/recipes-kernel/linux/linux-yocto.inc index 1ebfb60..362d6d8 100644 --- a/meta/recipes-kernel/linux/linux-yocto.inc +++ b/meta/recipes-kernel/linux/linux-yocto.inc @@ -72,3 +72,4 @@ addtask kernel_configcheck after do_configure before do_compile # enable kernel-sample for oeqa/runtime/cases's ksample.py test KERNEL_FEATURES_append_qemuall=" features/kernel-sample/kernel-sample.scc" +KERNEL_FEATURES_append = " ${@bb.utils.contains('DISTRO_FEATURES', 'ptest', 'features/bpf/bpf.scc', '', d)}" -- 2.7.4 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core