SUMMARY = "Kernel selftest for Linux"
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DESCRIPTION = "Kernel selftest for Linux"
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LICENSE = "GPLv2"
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LIC_FILES_CHKSUM = "file://../COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"
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DEPENDS = "rsync-native llvm-native"
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# for musl libc
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SRC_URI:append:libc-musl = "\
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file://userfaultfd.patch \
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"
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SRC_URI += "file://run-ptest \
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file://COPYING \
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"
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# now we just test bpf and vm
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# we will append other kernel selftest in the future
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# bpf was added in 4.10 with: https://github.com/torvalds/linux/commit/5aa5bd14c5f8660c64ceedf14a549781be47e53d
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# if you have older kernel than that you need to remove it from PACKAGECONFIG
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PACKAGECONFIG ??= "firmware"
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PACKAGECONFIG:remove:x86 = "bpf"
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PACKAGECONFIG:remove:arm = "bpf vm"
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# host ptrace.h is used to compile BPF target but mips ptrace.h is needed
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# progs/loop1.c:21:9: error: incomplete definition of type 'struct user_pt_regs'
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# m = PT_REGS_RC(ctx);
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# vm tests need libhugetlbfs starting 5.8+ (https://lkml.org/lkml/2020/4/22/1654)
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PACKAGECONFIG:remove:qemumips = "bpf vm"
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# riscv does not support libhugetlbfs yet
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PACKAGECONFIG:remove:riscv64 = "vm"
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PACKAGECONFIG:remove:riscv32 = "vm"
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PACKAGECONFIG[bpf] = ",,elfutils libcap libcap-ng rsync-native,"
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PACKAGECONFIG[firmware] = ",,libcap, bash"
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PACKAGECONFIG[vm] = ",,libcap libhugetlbfs,libgcc bash"
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do_patch[depends] += "virtual/kernel:do_shared_workdir"
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inherit linux-kernel-base kernel-arch ptest
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S = "${WORKDIR}/${BP}"
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TEST_LIST = "\
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${@bb.utils.filter('PACKAGECONFIG', 'bpf firmware vm', d)} \
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rtc \
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"
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EXTRA_OEMAKE = '\
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CROSS_COMPILE=${TARGET_PREFIX} \
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ARCH=${ARCH} \
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CC="${CC}" \
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CLANG="clang -fno-stack-protector -target ${TARGET_ARCH} ${TOOLCHAIN_OPTIONS}" \
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AR="${AR}" \
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LD="${LD}" \
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DESTDIR="${D}" \
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MACHINE="${ARCH}" \
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'
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KERNEL_SELFTEST_SRC ?= "Makefile \
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include \
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kernel \
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lib \
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tools \
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scripts \
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arch \
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LICENSES \
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"
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do_compile() {
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if [ ${@bb.utils.contains('PACKAGECONFIG', 'bpf', 'True', 'False', d)} = 'True' ]; then
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if [ ${@bb.utils.contains('DEPENDS', 'clang-native', 'True', 'False', d)} = 'False' ]; then
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bbwarn "clang >= 6.0 with bpf support is needed with kernel 4.18+ so
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either install it and add it to HOSTTOOLS, or add clang-native from meta-clang to dependency"
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fi
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fi
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for i in ${TEST_LIST}
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do
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oe_runmake -C ${S}/tools/testing/selftests/${i}
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done
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}
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do_install() {
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for i in ${TEST_LIST}
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do
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oe_runmake -C ${S}/tools/testing/selftests/${i} INSTALL_PATH=${D}/usr/kernel-selftest/${i} install
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done
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if [ -e ${D}/usr/kernel-selftest/bpf/test_offload.py ]; then
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sed -i -e '1s,#!.*python3,#! /usr/bin/env python3,' ${D}/usr/kernel-selftest/bpf/test_offload.py
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fi
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chown root:root -R ${D}/usr/kernel-selftest
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}
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do_configure() {
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install -D -m 0644 ${WORKDIR}/COPYING ${S}/COPYING
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}
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do_patch[prefuncs] += "copy_kselftest_source_from_kernel remove_unrelated"
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python copy_kselftest_source_from_kernel() {
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sources = (d.getVar("KERNEL_SELFTEST_SRC") or "").split()
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src_dir = d.getVar("STAGING_KERNEL_DIR")
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dest_dir = d.getVar("S")
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bb.utils.mkdirhier(dest_dir)
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for s in sources:
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src = oe.path.join(src_dir, s)
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dest = oe.path.join(dest_dir, s)
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if os.path.isdir(src):
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oe.path.copytree(src, dest)
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else:
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bb.utils.copyfile(src, dest)
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}
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remove_unrelated() {
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if ${@bb.utils.contains('PACKAGECONFIG','bpf','true','false',d)} ; then
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test -f ${S}/tools/testing/selftests/bpf/Makefile && \
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sed -i -e 's/test_pkt_access.*$/\\/' \
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-e 's/test_pkt_md_access.*$/\\/' \
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-e 's/sockmap_verdict_prog.*$/\\/' \
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${S}/tools/testing/selftests/bpf/Makefile || \
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bberror "Your kernel is probably older than 4.10 and doesn't have tools/testing/selftests/bpf/Makefile file from https://github.com/torvalds/linux/commit/5aa5bd14c5f8660c64ceedf14a549781be47e53d, disable bpf PACKAGECONFIG"
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fi
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}
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PACKAGE_ARCH = "${MACHINE_ARCH}"
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INHIBIT_PACKAGE_DEBUG_SPLIT="1"
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FILES:${PN} += "/usr/kernel-selftest"
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RDEPENDS:${PN} += "python3"
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# tools/testing/selftests/vm/Makefile doesn't respect LDFLAGS and tools/testing/selftests/Makefile explicitly overrides to empty
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INSANE_SKIP:${PN} += "ldflags"
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SECURITY_CFLAGS = ""
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COMPATIBLE_HOST:libc-musl = 'null'
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# It has native clang/llvm dependency, poky distro is reluctant to include them as deps
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# this helps with world builds on AB
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EXCLUDE_FROM_WORLD = "1"
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