1# SPDX-License-Identifier: GPL-2.0 2# 3# Makefile for some libs needed in the kernel. 4# 5 6ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) 7 8# Branch profiling isn't noinstr-safe 9ifdef CONFIG_TRACE_BRANCH_PROFILING 10CFLAGS_smp_processor_id.o += -DDISABLE_BRANCH_PROFILING 11endif 12 13# These files are disabled because they produce lots of non-interesting and/or 14# flaky coverage that is not a function of syscall inputs. For example, 15# rbtree can be global and individual rotations don't correlate with inputs. 16KCOV_INSTRUMENT_string.o := n 17KCOV_INSTRUMENT_rbtree.o := n 18KCOV_INSTRUMENT_list_debug.o := n 19KCOV_INSTRUMENT_debugobjects.o := n 20KCOV_INSTRUMENT_dynamic_debug.o := n 21KCOV_INSTRUMENT_fault-inject.o := n 22KCOV_INSTRUMENT_find_bit.o := n 23 24# string.o implements standard library functions like memset/memcpy etc. 25# Use -ffreestanding to ensure that the compiler does not try to "optimize" 26# them into calls to themselves. 27CFLAGS_string.o := -ffreestanding 28 29# Early boot use of cmdline, don't instrument it 30ifdef CONFIG_AMD_MEM_ENCRYPT 31KASAN_SANITIZE_string.o := n 32 33CFLAGS_string.o += -fno-stack-protector 34endif 35 36lib-y := ctype.o string.o vsprintf.o cmdline.o \ 37 rbtree.o radix-tree.o timerqueue.o xarray.o \ 38 maple_tree.o idr.o extable.o irq_regs.o argv_split.o \ 39 flex_proportions.o ratelimit.o \ 40 is_single_threaded.o plist.o decompress.o kobject_uevent.o \ 41 earlycpio.o seq_buf.o siphash.o dec_and_lock.o \ 42 nmi_backtrace.o win_minmax.o memcat_p.o \ 43 buildid.o objpool.o iomem_copy.o 44 45lib-$(CONFIG_UNION_FIND) += union_find.o 46lib-$(CONFIG_PRINTK) += dump_stack.o 47lib-$(CONFIG_SMP) += cpumask.o 48lib-$(CONFIG_MIN_HEAP) += min_heap.o 49 50lib-y += kobject.o klist.o 51obj-y += lockref.o 52 53obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \ 54 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \ 55 list_sort.o uuid.o iov_iter.o clz_ctz.o \ 56 bsearch.o find_bit.o llist.o lwq.o memweight.o kfifo.o \ 57 percpu-refcount.o rhashtable.o base64.o \ 58 once.o refcount.o rcuref.o usercopy.o errseq.o bucket_locks.o \ 59 generic-radix-tree.o bitmap-str.o 60obj-y += string_helpers.o 61obj-y += hexdump.o 62obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o 63obj-y += kstrtox.o 64obj-$(CONFIG_FIND_BIT_BENCHMARK) += find_bit_benchmark.o 65obj-$(CONFIG_TEST_BPF) += test_bpf.o 66test_dhry-objs := dhry_1.o dhry_2.o dhry_run.o 67obj-$(CONFIG_TEST_DHRY) += test_dhry.o 68obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o 69obj-$(CONFIG_TEST_BITOPS) += test_bitops.o 70CFLAGS_test_bitops.o += -Werror 71obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o 72obj-$(CONFIG_TEST_IDA) += test_ida.o 73obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o 74CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) 75CFLAGS_test_ubsan.o += $(call cc-disable-warning, unused-but-set-variable) 76UBSAN_SANITIZE_test_ubsan.o := y 77obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o 78obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o 79obj-$(CONFIG_TEST_LKM) += test_module.o 80obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o 81obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o 82obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o 83obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o 84obj-$(CONFIG_TEST_DYNAMIC_DEBUG) += test_dynamic_debug.o 85 86obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o 87ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_KASAN),yy) 88# FIXME: Clang breaks test_bitmap_const_eval when KASAN and GCOV are enabled 89GCOV_PROFILE_test_bitmap.o := n 90endif 91 92obj-$(CONFIG_TEST_UUID) += test_uuid.o 93obj-$(CONFIG_TEST_XARRAY) += test_xarray.o 94obj-$(CONFIG_TEST_MAPLE_TREE) += test_maple_tree.o 95obj-$(CONFIG_TEST_PARMAN) += test_parman.o 96obj-$(CONFIG_TEST_KMOD) += test_kmod.o 97obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o 98obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o 99obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o 100obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o 101obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o 102obj-$(CONFIG_TEST_HMM) += test_hmm.o 103obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o 104obj-$(CONFIG_TEST_REF_TRACKER) += test_ref_tracker.o 105obj-$(CONFIG_TEST_OBJPOOL) += test_objpool.o 106 107obj-$(CONFIG_TEST_FPU) += test_fpu.o 108test_fpu-y := test_fpu_glue.o test_fpu_impl.o 109CFLAGS_test_fpu_impl.o += $(CC_FLAGS_FPU) 110CFLAGS_REMOVE_test_fpu_impl.o += $(CC_FLAGS_NO_FPU) 111 112# Some KUnit files (hooks.o) need to be built-in even when KUnit is a module, 113# so we can't just use obj-$(CONFIG_KUNIT). 114ifdef CONFIG_KUNIT 115obj-y += kunit/ 116endif 117 118ifeq ($(CONFIG_DEBUG_KOBJECT),y) 119CFLAGS_kobject.o += -DDEBUG 120CFLAGS_kobject_uevent.o += -DDEBUG 121endif 122 123obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o 124CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any) 125 126obj-y += math/ crypto/ tests/ vdso/ 127 128obj-$(CONFIG_GENERIC_IOMAP) += iomap.o 129obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o 130obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o 131obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o 132 133lib-y += logic_pio.o 134 135lib-$(CONFIG_INDIRECT_IOMEM) += logic_iomem.o 136 137obj-$(CONFIG_TRACE_MMIO_ACCESS) += trace_readwrite.o 138 139obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o 140 141obj-$(CONFIG_BTREE) += btree.o 142obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o 143obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o 144obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o 145obj-$(CONFIG_LIST_HARDENED) += list_debug.o 146obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o 147 148obj-$(CONFIG_BITREVERSE) += bitrev.o 149obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o 150obj-$(CONFIG_PACKING) += packing.o 151obj-$(CONFIG_PACKING_KUNIT_TEST) += packing_test.o 152obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o 153obj-$(CONFIG_CRC16) += crc16.o 154obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o 155obj-$(CONFIG_CRC_ITU_T) += crc-itu-t.o 156obj-$(CONFIG_CRC32) += crc32.o 157obj-$(CONFIG_CRC64) += crc64.o 158obj-$(CONFIG_CRC4) += crc4.o 159obj-$(CONFIG_CRC7) += crc7.o 160obj-$(CONFIG_CRC8) += crc8.o 161obj-$(CONFIG_XXHASH) += xxhash.o 162obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o 163 164obj-$(CONFIG_842_COMPRESS) += 842/ 165obj-$(CONFIG_842_DECOMPRESS) += 842/ 166obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/ 167obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/ 168obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc/ 169obj-$(CONFIG_REED_SOLOMON) += reed_solomon/ 170obj-$(CONFIG_BCH) += bch.o 171obj-$(CONFIG_LZO_COMPRESS) += lzo/ 172obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ 173obj-$(CONFIG_LZ4_COMPRESS) += lz4/ 174obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/ 175obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/ 176obj-$(CONFIG_ZSTD_COMPRESS) += zstd/ 177obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd/ 178obj-$(CONFIG_XZ_DEC) += xz/ 179obj-$(CONFIG_RAID6_PQ) += raid6/ 180 181lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o 182lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o 183lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o 184lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o 185lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o 186lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o 187lib-$(CONFIG_DECOMPRESS_ZSTD) += decompress_unzstd.o 188 189obj-$(CONFIG_TEXTSEARCH) += textsearch.o 190obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o 191obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o 192obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o 193obj-$(CONFIG_SMP) += percpu_counter.o 194obj-$(CONFIG_AUDIT_GENERIC) += audit.o 195obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o 196 197obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o 198obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o 199obj-$(CONFIG_FAULT_INJECTION_USERCOPY) += fault-inject-usercopy.o 200obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o 201obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o 202obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o 203obj-$(CONFIG_MEMORY_NOTIFIER_ERROR_INJECT) += memory-notifier-error-inject.o 204obj-$(CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT) += \ 205 of-reconfig-notifier-error-inject.o 206obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o 207 208obj-$(CONFIG_CODE_TAGGING) += codetag.o 209obj-$(CONFIG_MEM_ALLOC_PROFILING) += alloc_tag.o 210 211lib-$(CONFIG_GENERIC_BUG) += bug.o 212 213obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o 214obj-$(CONFIG_ARCH_NEED_CMPXCHG_1_EMU) += cmpxchg-emu.o 215 216obj-$(CONFIG_DYNAMIC_DEBUG_CORE) += dynamic_debug.o 217#ensure exported functions have prototypes 218CFLAGS_dynamic_debug.o := -DDYNAMIC_DEBUG_MODULE 219 220obj-$(CONFIG_SYMBOLIC_ERRNAME) += errname.o 221 222obj-$(CONFIG_NLATTR) += nlattr.o 223 224obj-$(CONFIG_LRU_CACHE) += lru_cache.o 225 226obj-$(CONFIG_GENERIC_CSUM) += checksum.o 227 228obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o 229 230obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o 231 232obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o 233 234obj-$(CONFIG_CLOSURES) += closure.o 235 236obj-$(CONFIG_DQL) += dynamic_queue_limits.o 237 238obj-$(CONFIG_GLOB) += glob.o 239obj-$(CONFIG_GLOB_SELFTEST) += globtest.o 240 241obj-$(CONFIG_DIMLIB) += dim/ 242obj-$(CONFIG_SIGNATURE) += digsig.o 243 244lib-$(CONFIG_CLZ_TAB) += clz_tab.o 245 246obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o 247obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o 248 249obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o 250 251obj-$(CONFIG_SG_SPLIT) += sg_split.o 252obj-$(CONFIG_SG_POOL) += sg_pool.o 253obj-$(CONFIG_MEMREGION) += memregion.o 254obj-$(CONFIG_STMP_DEVICE) += stmp_device.o 255obj-$(CONFIG_IRQ_POLL) += irq_poll.o 256 257obj-$(CONFIG_POLYNOMIAL) += polynomial.o 258 259# stackdepot.c should not be instrumented or call instrumented functions. 260# Prevent the compiler from calling builtins like memcmp() or bcmp() from this 261# file. 262CFLAGS_stackdepot.o += -fno-builtin 263obj-$(CONFIG_STACKDEPOT) += stackdepot.o 264KASAN_SANITIZE_stackdepot.o := n 265# In particular, instrumenting stackdepot.c with KMSAN will result in infinite 266# recursion. 267KMSAN_SANITIZE_stackdepot.o := n 268KCOV_INSTRUMENT_stackdepot.o := n 269 270obj-$(CONFIG_REF_TRACKER) += ref_tracker.o 271 272libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \ 273 fdt_empty_tree.o fdt_addresses.o 274$(foreach file, $(libfdt_files), \ 275 $(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt)) 276lib-$(CONFIG_LIBFDT) += $(libfdt_files) 277 278obj-$(CONFIG_BOOT_CONFIG) += bootconfig.o 279obj-$(CONFIG_BOOT_CONFIG_EMBED) += bootconfig-data.o 280 281$(obj)/bootconfig-data.o: $(obj)/default.bconf 282 283targets += default.bconf 284filechk_defbconf = cat $(or $(real-prereqs), /dev/null) 285$(obj)/default.bconf: $(CONFIG_BOOT_CONFIG_EMBED_FILE) FORCE 286 $(call filechk,defbconf) 287 288obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o 289obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o 290 291obj-$(CONFIG_PERCPU_TEST) += percpu_test.o 292 293obj-$(CONFIG_ASN1) += asn1_decoder.o 294obj-$(CONFIG_ASN1_ENCODER) += asn1_encoder.o 295 296obj-$(CONFIG_FONT_SUPPORT) += fonts/ 297 298hostprogs := gen_crc32table 299hostprogs += gen_crc64table 300clean-files := crc32table.h 301clean-files += crc64table.h 302 303$(obj)/crc32.o: $(obj)/crc32table.h 304 305quiet_cmd_crc32 = GEN $@ 306 cmd_crc32 = $< > $@ 307 308$(obj)/crc32table.h: $(obj)/gen_crc32table 309 $(call cmd,crc32) 310 311$(obj)/crc64.o: $(obj)/crc64table.h 312 313quiet_cmd_crc64 = GEN $@ 314 cmd_crc64 = $< > $@ 315 316$(obj)/crc64table.h: $(obj)/gen_crc64table 317 $(call cmd,crc64) 318 319# 320# Build a fast OID lookip registry from include/linux/oid_registry.h 321# 322obj-$(CONFIG_OID_REGISTRY) += oid_registry.o 323 324$(obj)/oid_registry.o: $(obj)/oid_registry_data.c 325 326$(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \ 327 $(src)/build_OID_registry 328 $(call cmd,build_OID_registry) 329 330quiet_cmd_build_OID_registry = GEN $@ 331 cmd_build_OID_registry = perl $(src)/build_OID_registry $< $@ 332 333clean-files += oid_registry_data.c 334 335obj-$(CONFIG_UCS2_STRING) += ucs2_string.o 336obj-$(CONFIG_UBSAN) += ubsan.o 337 338UBSAN_SANITIZE_ubsan.o := n 339KASAN_SANITIZE_ubsan.o := n 340KCSAN_SANITIZE_ubsan.o := n 341CFLAGS_ubsan.o := -fno-stack-protector $(DISABLE_STACKLEAK_PLUGIN) 342 343obj-$(CONFIG_SBITMAP) += sbitmap.o 344 345obj-$(CONFIG_PARMAN) += parman.o 346 347obj-y += group_cpus.o 348 349# GCC library routines 350obj-$(CONFIG_GENERIC_LIB_ASHLDI3) += ashldi3.o 351obj-$(CONFIG_GENERIC_LIB_ASHRDI3) += ashrdi3.o 352obj-$(CONFIG_GENERIC_LIB_LSHRDI3) += lshrdi3.o 353obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o 354obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o 355obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o 356obj-$(CONFIG_OBJAGG) += objagg.o 357 358# pldmfw library 359obj-$(CONFIG_PLDMFW) += pldmfw/ 360 361obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o 362 363obj-$(CONFIG_FIRMWARE_TABLE) += fw_table.o 364 365subdir-$(CONFIG_FORTIFY_SOURCE) += test_fortify 366