1# SPDX-License-Identifier: GPL-2.0 2# 3# Makefile for some libs needed in the kernel. 4# 5 6ifdef CONFIG_FUNCTION_TRACER 7ORIG_CFLAGS := $(KBUILD_CFLAGS) 8KBUILD_CFLAGS = $(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS)) 9endif 10 11# These files are disabled because they produce lots of non-interesting and/or 12# flaky coverage that is not a function of syscall inputs. For example, 13# rbtree can be global and individual rotations don't correlate with inputs. 14KCOV_INSTRUMENT_string.o := n 15KCOV_INSTRUMENT_rbtree.o := n 16KCOV_INSTRUMENT_list_debug.o := n 17KCOV_INSTRUMENT_debugobjects.o := n 18KCOV_INSTRUMENT_dynamic_debug.o := n 19KCOV_INSTRUMENT_fault-inject.o := n 20 21# Early boot use of cmdline, don't instrument it 22ifdef CONFIG_AMD_MEM_ENCRYPT 23KASAN_SANITIZE_string.o := n 24 25CFLAGS_string.o := $(call cc-option, -fno-stack-protector) 26endif 27 28# Used by KCSAN while enabled, avoid recursion. 29KCSAN_SANITIZE_random32.o := n 30 31lib-y := ctype.o string.o vsprintf.o cmdline.o \ 32 rbtree.o radix-tree.o timerqueue.o xarray.o \ 33 idr.o extable.o sha1.o irq_regs.o argv_split.o \ 34 flex_proportions.o ratelimit.o show_mem.o \ 35 is_single_threaded.o plist.o decompress.o kobject_uevent.o \ 36 earlycpio.o seq_buf.o siphash.o dec_and_lock.o \ 37 nmi_backtrace.o nodemask.o win_minmax.o memcat_p.o 38 39lib-$(CONFIG_PRINTK) += dump_stack.o 40lib-$(CONFIG_MMU) += ioremap.o 41lib-$(CONFIG_SMP) += cpumask.o 42 43lib-y += kobject.o klist.o 44obj-y += lockref.o 45 46obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \ 47 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \ 48 list_sort.o uuid.o iov_iter.o clz_ctz.o \ 49 bsearch.o find_bit.o llist.o memweight.o kfifo.o \ 50 percpu-refcount.o rhashtable.o \ 51 once.o refcount.o usercopy.o errseq.o bucket_locks.o \ 52 generic-radix-tree.o 53obj-$(CONFIG_STRING_SELFTEST) += test_string.o 54obj-y += string_helpers.o 55obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o 56obj-y += hexdump.o 57obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o 58obj-y += kstrtox.o 59obj-$(CONFIG_FIND_BIT_BENCHMARK) += find_bit_benchmark.o 60obj-$(CONFIG_TEST_BPF) += test_bpf.o 61obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o 62obj-$(CONFIG_TEST_BITOPS) += test_bitops.o 63CFLAGS_test_bitops.o += -Werror 64obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o 65obj-$(CONFIG_TEST_HASH) += test_hash.o test_siphash.o 66obj-$(CONFIG_TEST_IDA) += test_ida.o 67obj-$(CONFIG_TEST_KASAN) += test_kasan.o 68CFLAGS_test_kasan.o += -fno-builtin 69CFLAGS_test_kasan.o += $(call cc-disable-warning, vla) 70obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o 71CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) 72UBSAN_SANITIZE_test_ubsan.o := y 73obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o 74obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o 75obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o 76obj-$(CONFIG_TEST_LKM) += test_module.o 77obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o 78obj-$(CONFIG_TEST_OVERFLOW) += test_overflow.o 79obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o 80obj-$(CONFIG_TEST_SORT) += test_sort.o 81obj-$(CONFIG_TEST_USER_COPY) += test_user_copy.o 82obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o 83obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o 84obj-$(CONFIG_TEST_PRINTF) += test_printf.o 85obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o 86obj-$(CONFIG_TEST_STRSCPY) += test_strscpy.o 87obj-$(CONFIG_TEST_BITFIELD) += test_bitfield.o 88obj-$(CONFIG_TEST_UUID) += test_uuid.o 89obj-$(CONFIG_TEST_XARRAY) += test_xarray.o 90obj-$(CONFIG_TEST_PARMAN) += test_parman.o 91obj-$(CONFIG_TEST_KMOD) += test_kmod.o 92obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o 93obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o 94obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o 95CFLAGS_test_stackinit.o += $(call cc-disable-warning, switch-unreachable) 96obj-$(CONFIG_TEST_STACKINIT) += test_stackinit.o 97obj-$(CONFIG_TEST_BLACKHOLE_DEV) += test_blackhole_dev.o 98obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o 99obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o 100obj-$(CONFIG_TEST_HMM) += test_hmm.o 101 102obj-$(CONFIG_TEST_LIVEPATCH) += livepatch/ 103 104obj-$(CONFIG_KUNIT) += kunit/ 105 106ifeq ($(CONFIG_DEBUG_KOBJECT),y) 107CFLAGS_kobject.o += -DDEBUG 108CFLAGS_kobject_uevent.o += -DDEBUG 109endif 110 111obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o 112CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any) 113 114obj-y += math/ crypto/ 115 116obj-$(CONFIG_GENERIC_IOMAP) += iomap.o 117obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o 118obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o 119obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o 120obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o 121 122lib-y += logic_pio.o 123 124obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o 125 126obj-$(CONFIG_BTREE) += btree.o 127obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o 128obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o 129obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o 130obj-$(CONFIG_DEBUG_LIST) += list_debug.o 131obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o 132 133obj-$(CONFIG_BITREVERSE) += bitrev.o 134obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o 135obj-$(CONFIG_PACKING) += packing.o 136obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o 137obj-$(CONFIG_CRC16) += crc16.o 138obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o 139obj-$(CONFIG_CRC_ITU_T) += crc-itu-t.o 140obj-$(CONFIG_CRC32) += crc32.o 141obj-$(CONFIG_CRC64) += crc64.o 142obj-$(CONFIG_CRC32_SELFTEST) += crc32test.o 143obj-$(CONFIG_CRC4) += crc4.o 144obj-$(CONFIG_CRC7) += crc7.o 145obj-$(CONFIG_LIBCRC32C) += libcrc32c.o 146obj-$(CONFIG_CRC8) += crc8.o 147obj-$(CONFIG_XXHASH) += xxhash.o 148obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o 149 150obj-$(CONFIG_842_COMPRESS) += 842/ 151obj-$(CONFIG_842_DECOMPRESS) += 842/ 152obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/ 153obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/ 154obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc/ 155obj-$(CONFIG_REED_SOLOMON) += reed_solomon/ 156obj-$(CONFIG_BCH) += bch.o 157obj-$(CONFIG_LZO_COMPRESS) += lzo/ 158obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ 159obj-$(CONFIG_LZ4_COMPRESS) += lz4/ 160obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/ 161obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/ 162obj-$(CONFIG_ZSTD_COMPRESS) += zstd/ 163obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd/ 164obj-$(CONFIG_XZ_DEC) += xz/ 165obj-$(CONFIG_RAID6_PQ) += raid6/ 166 167lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o 168lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o 169lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o 170lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o 171lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o 172lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o 173 174obj-$(CONFIG_TEXTSEARCH) += textsearch.o 175obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o 176obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o 177obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o 178obj-$(CONFIG_SMP) += percpu_counter.o 179obj-$(CONFIG_AUDIT_GENERIC) += audit.o 180obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o 181 182obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o 183obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o 184obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o 185obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o 186obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o 187obj-$(CONFIG_MEMORY_NOTIFIER_ERROR_INJECT) += memory-notifier-error-inject.o 188obj-$(CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT) += \ 189 of-reconfig-notifier-error-inject.o 190obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o 191 192lib-$(CONFIG_GENERIC_BUG) += bug.o 193 194obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o 195 196obj-$(CONFIG_DYNAMIC_DEBUG_CORE) += dynamic_debug.o 197obj-$(CONFIG_SYMBOLIC_ERRNAME) += errname.o 198 199obj-$(CONFIG_NLATTR) += nlattr.o 200 201obj-$(CONFIG_LRU_CACHE) += lru_cache.o 202 203obj-$(CONFIG_GENERIC_CSUM) += checksum.o 204 205obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o 206 207obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o 208 209obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o 210 211obj-$(CONFIG_DQL) += dynamic_queue_limits.o 212 213obj-$(CONFIG_GLOB) += glob.o 214obj-$(CONFIG_GLOB_SELFTEST) += globtest.o 215 216obj-$(CONFIG_MPILIB) += mpi/ 217obj-$(CONFIG_DIMLIB) += dim/ 218obj-$(CONFIG_SIGNATURE) += digsig.o 219 220lib-$(CONFIG_CLZ_TAB) += clz_tab.o 221 222obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o 223obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o 224 225obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o 226 227obj-$(CONFIG_SG_SPLIT) += sg_split.o 228obj-$(CONFIG_SG_POOL) += sg_pool.o 229obj-$(CONFIG_MEMREGION) += memregion.o 230obj-$(CONFIG_STMP_DEVICE) += stmp_device.o 231obj-$(CONFIG_IRQ_POLL) += irq_poll.o 232 233# stackdepot.c should not be instrumented or call instrumented functions. 234# Prevent the compiler from calling builtins like memcmp() or bcmp() from this 235# file. 236CFLAGS_stackdepot.o += -fno-builtin 237obj-$(CONFIG_STACKDEPOT) += stackdepot.o 238KASAN_SANITIZE_stackdepot.o := n 239KCOV_INSTRUMENT_stackdepot.o := n 240 241libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \ 242 fdt_empty_tree.o fdt_addresses.o 243$(foreach file, $(libfdt_files), \ 244 $(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt)) 245lib-$(CONFIG_LIBFDT) += $(libfdt_files) 246 247lib-$(CONFIG_BOOT_CONFIG) += bootconfig.o 248 249obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o 250obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o 251 252obj-$(CONFIG_PERCPU_TEST) += percpu_test.o 253 254obj-$(CONFIG_ASN1) += asn1_decoder.o 255 256obj-$(CONFIG_FONT_SUPPORT) += fonts/ 257 258hostprogs := gen_crc32table 259hostprogs += gen_crc64table 260clean-files := crc32table.h 261clean-files += crc64table.h 262 263$(obj)/crc32.o: $(obj)/crc32table.h 264 265quiet_cmd_crc32 = GEN $@ 266 cmd_crc32 = $< > $@ 267 268$(obj)/crc32table.h: $(obj)/gen_crc32table 269 $(call cmd,crc32) 270 271$(obj)/crc64.o: $(obj)/crc64table.h 272 273quiet_cmd_crc64 = GEN $@ 274 cmd_crc64 = $< > $@ 275 276$(obj)/crc64table.h: $(obj)/gen_crc64table 277 $(call cmd,crc64) 278 279# 280# Build a fast OID lookip registry from include/linux/oid_registry.h 281# 282obj-$(CONFIG_OID_REGISTRY) += oid_registry.o 283 284$(obj)/oid_registry.o: $(obj)/oid_registry_data.c 285 286$(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \ 287 $(src)/build_OID_registry 288 $(call cmd,build_OID_registry) 289 290quiet_cmd_build_OID_registry = GEN $@ 291 cmd_build_OID_registry = perl $(srctree)/$(src)/build_OID_registry $< $@ 292 293clean-files += oid_registry_data.c 294 295obj-$(CONFIG_UCS2_STRING) += ucs2_string.o 296ifneq ($(CONFIG_UBSAN_TRAP),y) 297obj-$(CONFIG_UBSAN) += ubsan.o 298endif 299 300UBSAN_SANITIZE_ubsan.o := n 301KASAN_SANITIZE_ubsan.o := n 302KCSAN_SANITIZE_ubsan.o := n 303CFLAGS_ubsan.o := $(call cc-option, -fno-stack-protector) $(DISABLE_STACKLEAK_PLUGIN) 304 305obj-$(CONFIG_SBITMAP) += sbitmap.o 306 307obj-$(CONFIG_PARMAN) += parman.o 308 309# GCC library routines 310obj-$(CONFIG_GENERIC_LIB_ASHLDI3) += ashldi3.o 311obj-$(CONFIG_GENERIC_LIB_ASHRDI3) += ashrdi3.o 312obj-$(CONFIG_GENERIC_LIB_LSHRDI3) += lshrdi3.o 313obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o 314obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o 315obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o 316obj-$(CONFIG_OBJAGG) += objagg.o 317 318# KUnit tests 319obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o 320obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o 321