1SUMMARY = "Kernel selftest for Linux" 2DESCRIPTION = "Kernel selftest for Linux" 3LICENSE = "GPL-2.0-only" 4 5LIC_FILES_CHKSUM = "file://../COPYING;md5=bbea815ee2795b2f4230826c0c6b8814" 6 7DEPENDS = "rsync-native llvm-native" 8 9# for musl libc 10SRC_URI:append:libc-musl = "\ 11 file://userfaultfd.patch \ 12 " 13SRC_URI += "file://run-ptest \ 14 file://COPYING \ 15 " 16 17# now we just test bpf and vm 18# we will append other kernel selftest in the future 19# bpf was added in 4.10 with: https://github.com/torvalds/linux/commit/5aa5bd14c5f8660c64ceedf14a549781be47e53d 20# if you have older kernel than that you need to remove it from PACKAGECONFIG 21PACKAGECONFIG ??= "firmware" 22# bpf needs working clang compiler anyway 23PACKAGECONFIG:append:toolchain-clang:x86-64 = " bpf" 24PACKAGECONFIG:remove:x86 = "bpf" 25PACKAGECONFIG:remove:arm = "bpf vm" 26# host ptrace.h is used to compile BPF target but mips ptrace.h is needed 27# progs/loop1.c:21:9: error: incomplete definition of type 'struct user_pt_regs' 28# m = PT_REGS_RC(ctx); 29# vm tests need libhugetlbfs starting 5.8+ (https://lkml.org/lkml/2020/4/22/1654) 30PACKAGECONFIG:remove:qemumips = "bpf vm" 31 32# riscv does not support libhugetlbfs yet 33PACKAGECONFIG:remove:riscv64 = "bpf vm" 34PACKAGECONFIG:remove:riscv32 = "bpf vm" 35 36PACKAGECONFIG[bpf] = ",,elfutils elfutils-native libcap libcap-ng rsync-native python3-docutils-native," 37PACKAGECONFIG[firmware] = ",,libcap, bash" 38PACKAGECONFIG[vm] = ",,libcap libhugetlbfs,libgcc bash" 39 40do_patch[depends] += "virtual/kernel:do_shared_workdir" 41do_compile[depends] += "virtual/kernel:do_install" 42 43inherit linux-kernel-base module-base kernel-arch ptest siteinfo 44 45S = "${WORKDIR}/${BP}" 46 47DEBUG_PREFIX_MAP:remove = "-fcanon-prefix-map" 48 49TEST_LIST = "\ 50 ${@bb.utils.filter('PACKAGECONFIG', 'bpf firmware vm', d)} \ 51 rtc \ 52 ptp \ 53 timers \ 54" 55EXTRA_OEMAKE = '\ 56 CROSS_COMPILE=${TARGET_PREFIX} \ 57 ARCH=${ARCH} \ 58 CC="${CC}" \ 59 AR="${AR}" \ 60 LD="${LD}" \ 61 CLANG="clang -fno-stack-protector -target ${TARGET_ARCH} ${TOOLCHAIN_OPTIONS} -isystem ${S} -D__WORDSIZE=\'64\' -Wno-error=unused-command-line-argument" \ 62 DESTDIR="${D}" \ 63 V=1 \ 64' 65EXTRA_OEMAKE:append:toolchain-clang = "\ 66 LLVM=1 CONFIG_CC_IS_GCC= CONFIG_CC_IS_CLANG=y CONFIG_CC_IMPLICIT_FALLTHROUGH= \ 67 HOSTCC="clang -unwindlib=libgcc -rtlib=libgcc -stdlib=libstdc++ ${BUILD_CFLAGS} ${BUILD_LDFLAGS} -Wno-error=unused-command-line-argument" \ 68 HOSTLD="clang ${BUILD_LDFLAGS} -unwindlib=libgcc -rtlib=libgcc -stdlib=libstdc++" \ 69" 70 71KERNEL_SELFTEST_SRC ?= "Makefile \ 72 include \ 73 kernel \ 74 lib \ 75 tools \ 76 scripts \ 77 arch \ 78 LICENSES \ 79" 80do_compile() { 81 if [ ${@bb.utils.contains('PACKAGECONFIG', 'bpf', 'True', 'False', d)} = 'True' ]; then 82 if [ ${@bb.utils.contains('DEPENDS', 'clang-native', 'True', 'False', d)} = 'False' ]; then 83 bbwarn "clang >= 6.0 with bpf support is needed with kernel 4.18+ so 84either install it and add it to HOSTTOOLS, or add clang-native from meta-clang to dependency" 85 fi 86 fi 87 mkdir -p ${S}/include/config ${S}/bits 88 install -Dm 0644 ${STAGING_KERNEL_BUILDDIR}/.config ${S}/include/config/auto.conf 89 if [ "${SITEINFO_BITS}" != "32" ]; then 90 for f in long-double endianness floatn struct_rwlock; do 91 cp ${RECIPE_SYSROOT}${includedir}/bits/$f-64.h ${S}/bits/$f-32.h 92 done 93 fi 94 oe_runmake -C ${S} headers 95 sed -i -e 's|^all: docs|all:|' ${S}/tools/testing/selftests/bpf/Makefile 96 sed -i -e '/mrecord-mcount/d' ${S}/Makefile 97 sed -i -e '/Wno-alloc-size-larger-than/d' ${S}/Makefile 98 sed -i -e '/Wno-alloc-size-larger-than/d' ${S}/scripts/Makefile.* 99 for i in ${TEST_LIST} 100 do 101 oe_runmake -C ${S}/tools/testing/selftests/${i} 102 done 103} 104 105do_install() { 106 for i in ${TEST_LIST} 107 do 108 oe_runmake -C ${S}/tools/testing/selftests/${i} INSTALL_PATH=${D}/usr/kernel-selftest/${i} install 109 # Install kselftest-list.txt that required by kselftest runner. 110 oe_runmake -s --no-print-directory COLLECTION=${i} -C ${S}/tools/testing/selftests/${i} emit_tests \ 111 >> ${D}/usr/kernel-selftest/kselftest-list.txt 112 done 113 # Install kselftest runner. 114 install -m 0755 ${S}/tools/testing/selftests/run_kselftest.sh ${D}/usr/kernel-selftest/ 115 cp -R --no-dereference --preserve=mode,links -v ${S}/tools/testing/selftests/kselftest ${D}/usr/kernel-selftest/ 116 if [ -e ${D}/usr/kernel-selftest/bpf/test_offload.py ]; then 117 sed -i -e '1s,#!.*python3,#! /usr/bin/env python3,' ${D}/usr/kernel-selftest/bpf/test_offload.py 118 fi 119 chown root:root -R ${D}/usr/kernel-selftest 120} 121 122do_configure() { 123 install -D -m 0644 ${WORKDIR}/COPYING ${S}/COPYING 124} 125 126do_patch[prefuncs] += "copy_kselftest_source_from_kernel remove_unrelated" 127python copy_kselftest_source_from_kernel() { 128 sources = (d.getVar("KERNEL_SELFTEST_SRC") or "").split() 129 src_dir = d.getVar("STAGING_KERNEL_DIR") 130 dest_dir = d.getVar("S") 131 bb.utils.mkdirhier(dest_dir) 132 for s in sources: 133 src = oe.path.join(src_dir, s) 134 dest = oe.path.join(dest_dir, s) 135 if os.path.isdir(src): 136 oe.path.copytree(src, dest) 137 else: 138 bb.utils.copyfile(src, dest) 139} 140 141remove_unrelated() { 142 if ${@bb.utils.contains('PACKAGECONFIG','bpf','true','false',d)} ; then 143 test -f ${S}/tools/testing/selftests/bpf/Makefile && \ 144 sed -i -e 's/test_pkt_access.*$/\\/' \ 145 -e 's/test_pkt_md_access.*$/\\/' \ 146 -e 's/sockmap_verdict_prog.*$/\\/' \ 147 ${S}/tools/testing/selftests/bpf/Makefile || \ 148 bberror "Your kernel is probably older than 4.10 and doesn't have tools/testing/selftests/bpf/Makefile file from https://github.com/torvalds/linux/commit/5aa5bd14c5f8660c64ceedf14a549781be47e53d, disable bpf PACKAGECONFIG" 149 fi 150} 151 152PACKAGE_ARCH = "${MACHINE_ARCH}" 153 154INHIBIT_PACKAGE_DEBUG_SPLIT="1" 155FILES:${PN} += "/usr/kernel-selftest" 156 157RDEPENDS:${PN} += "python3 perl perl-module-io-handle" 158 159INSANE_SKIP:${PN} += "libdir" 160 161SECURITY_CFLAGS = "" 162COMPATIBLE_HOST:libc-musl = 'null' 163 164# It has native clang/llvm dependency, poky distro is reluctant to include them as deps 165# this helps with world builds on AB 166EXCLUDE_FROM_WORLD = "1" 167