1 # SPDX-License-Identifier: GPL-2.0 2 # 3 # Makefile for some libs needed in the kernel. 4 # 5 6 ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) 7 8 # These files are disabled because they produce lots of non-interesting and/or 9 # flaky coverage that is not a function of syscall inputs. For example, 10 # rbtree can be global and individual rotations don't correlate with inputs. 11 KCOV_INSTRUMENT_string.o := n 12 KCOV_INSTRUMENT_rbtree.o := n 13 KCOV_INSTRUMENT_list_debug.o := n 14 KCOV_INSTRUMENT_debugobjects.o := n 15 KCOV_INSTRUMENT_dynamic_debug.o := n 16 KCOV_INSTRUMENT_fault-inject.o := n 17 KCOV_INSTRUMENT_find_bit.o := n 18 19 # string.o implements standard library functions like memset/memcpy etc. 20 # Use -ffreestanding to ensure that the compiler does not try to "optimize" 21 # them into calls to themselves. 22 CFLAGS_string.o := -ffreestanding 23 24 # Early boot use of cmdline, don't instrument it 25 ifdef CONFIG_AMD_MEM_ENCRYPT 26 KASAN_SANITIZE_string.o := n 27 28 CFLAGS_string.o += -fno-stack-protector 29 endif 30 31 lib-y := ctype.o string.o vsprintf.o cmdline.o \ 32 rbtree.o radix-tree.o timerqueue.o xarray.o \ 33 maple_tree.o idr.o extable.o irq_regs.o argv_split.o \ 34 flex_proportions.o ratelimit.o \ 35 is_single_threaded.o plist.o decompress.o kobject_uevent.o \ 36 earlycpio.o seq_buf.o siphash.o dec_and_lock.o \ 37 nmi_backtrace.o win_minmax.o memcat_p.o \ 38 buildid.o objpool.o union_find.o 39 40 lib-$(CONFIG_PRINTK) += dump_stack.o 41 lib-$(CONFIG_SMP) += cpumask.o 42 43 lib-y += kobject.o klist.o 44 obj-y += lockref.o 45 46 obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \ 47 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \ 48 list_sort.o uuid.o iov_iter.o clz_ctz.o \ 49 bsearch.o find_bit.o llist.o lwq.o memweight.o kfifo.o \ 50 percpu-refcount.o rhashtable.o base64.o \ 51 once.o refcount.o rcuref.o usercopy.o errseq.o bucket_locks.o \ 52 generic-radix-tree.o bitmap-str.o 53 obj-$(CONFIG_STRING_KUNIT_TEST) += string_kunit.o 54 obj-y += string_helpers.o 55 obj-$(CONFIG_STRING_HELPERS_KUNIT_TEST) += string_helpers_kunit.o 56 obj-y += hexdump.o 57 obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o 58 obj-y += kstrtox.o 59 obj-$(CONFIG_FIND_BIT_BENCHMARK) += find_bit_benchmark.o 60 obj-$(CONFIG_TEST_BPF) += test_bpf.o 61 test_dhry-objs := dhry_1.o dhry_2.o dhry_run.o 62 obj-$(CONFIG_TEST_DHRY) += test_dhry.o 63 obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o 64 obj-$(CONFIG_TEST_BITOPS) += test_bitops.o 65 CFLAGS_test_bitops.o += -Werror 66 obj-$(CONFIG_CPUMASK_KUNIT_TEST) += cpumask_kunit.o 67 obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o 68 obj-$(CONFIG_TEST_IOV_ITER) += kunit_iov_iter.o 69 obj-$(CONFIG_HASH_KUNIT_TEST) += test_hash.o 70 obj-$(CONFIG_TEST_IDA) += test_ida.o 71 obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o 72 CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) 73 CFLAGS_test_ubsan.o += $(call cc-disable-warning, unused-but-set-variable) 74 UBSAN_SANITIZE_test_ubsan.o := y 75 obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o 76 obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o 77 obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o 78 obj-$(CONFIG_TEST_LKM) += test_module.o 79 obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o 80 obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o 81 obj-$(CONFIG_TEST_SORT) += test_sort.o 82 obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o 83 obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o 84 obj-$(CONFIG_TEST_DYNAMIC_DEBUG) += test_dynamic_debug.o 85 obj-$(CONFIG_TEST_PRINTF) += test_printf.o 86 obj-$(CONFIG_TEST_SCANF) += test_scanf.o 87 88 obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o 89 ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_KASAN),yy) 90 # FIXME: Clang breaks test_bitmap_const_eval when KASAN and GCOV are enabled 91 GCOV_PROFILE_test_bitmap.o := n 92 endif 93 94 obj-$(CONFIG_TEST_UUID) += test_uuid.o 95 obj-$(CONFIG_TEST_XARRAY) += test_xarray.o 96 obj-$(CONFIG_TEST_MAPLE_TREE) += test_maple_tree.o 97 obj-$(CONFIG_TEST_PARMAN) += test_parman.o 98 obj-$(CONFIG_TEST_KMOD) += test_kmod.o 99 obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o 100 obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o 101 obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o 102 obj-$(CONFIG_TEST_BLACKHOLE_DEV) += test_blackhole_dev.o 103 obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o 104 obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o 105 obj-$(CONFIG_TEST_HMM) += test_hmm.o 106 obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o 107 obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o 108 obj-$(CONFIG_TEST_REF_TRACKER) += test_ref_tracker.o 109 CFLAGS_test_fprobe.o += $(CC_FLAGS_FTRACE) 110 obj-$(CONFIG_FPROBE_SANITY_TEST) += test_fprobe.o 111 obj-$(CONFIG_TEST_OBJPOOL) += test_objpool.o 112 113 obj-$(CONFIG_TEST_FPU) += test_fpu.o 114 test_fpu-y := test_fpu_glue.o test_fpu_impl.o 115 CFLAGS_test_fpu_impl.o += $(CC_FLAGS_FPU) 116 CFLAGS_REMOVE_test_fpu_impl.o += $(CC_FLAGS_NO_FPU) 117 118 # Some KUnit files (hooks.o) need to be built-in even when KUnit is a module, 119 # so we can't just use obj-$(CONFIG_KUNIT). 120 ifdef CONFIG_KUNIT 121 obj-y += kunit/ 122 endif 123 124 ifeq ($(CONFIG_DEBUG_KOBJECT),y) 125 CFLAGS_kobject.o += -DDEBUG 126 CFLAGS_kobject_uevent.o += -DDEBUG 127 endif 128 129 obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o 130 CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any) 131 132 obj-y += math/ crypto/ 133 134 obj-$(CONFIG_GENERIC_IOMAP) += iomap.o 135 obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o 136 obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o 137 obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o 138 139 lib-y += logic_pio.o 140 141 lib-$(CONFIG_INDIRECT_IOMEM) += logic_iomem.o 142 143 obj-$(CONFIG_TRACE_MMIO_ACCESS) += trace_readwrite.o 144 145 obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o 146 147 obj-$(CONFIG_BTREE) += btree.o 148 obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o 149 obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o 150 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o 151 obj-$(CONFIG_LIST_HARDENED) += list_debug.o 152 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o 153 154 obj-$(CONFIG_BITREVERSE) += bitrev.o 155 obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o 156 obj-$(CONFIG_PACKING) += packing.o 157 obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o 158 obj-$(CONFIG_CRC16) += crc16.o 159 obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o 160 obj-$(CONFIG_CRC_ITU_T) += crc-itu-t.o 161 obj-$(CONFIG_CRC32) += crc32.o 162 obj-$(CONFIG_CRC64) += crc64.o 163 obj-$(CONFIG_CRC32_SELFTEST) += crc32test.o 164 obj-$(CONFIG_CRC4) += crc4.o 165 obj-$(CONFIG_CRC7) += crc7.o 166 obj-$(CONFIG_LIBCRC32C) += libcrc32c.o 167 obj-$(CONFIG_CRC8) += crc8.o 168 obj-$(CONFIG_CRC64_ROCKSOFT) += crc64-rocksoft.o 169 obj-$(CONFIG_XXHASH) += xxhash.o 170 obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o 171 172 obj-$(CONFIG_842_COMPRESS) += 842/ 173 obj-$(CONFIG_842_DECOMPRESS) += 842/ 174 obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/ 175 obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/ 176 obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc/ 177 obj-$(CONFIG_REED_SOLOMON) += reed_solomon/ 178 obj-$(CONFIG_BCH) += bch.o 179 obj-$(CONFIG_LZO_COMPRESS) += lzo/ 180 obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ 181 obj-$(CONFIG_LZ4_COMPRESS) += lz4/ 182 obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/ 183 obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/ 184 obj-$(CONFIG_ZSTD_COMPRESS) += zstd/ 185 obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd/ 186 obj-$(CONFIG_XZ_DEC) += xz/ 187 obj-$(CONFIG_RAID6_PQ) += raid6/ 188 189 lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o 190 lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o 191 lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o 192 lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o 193 lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o 194 lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o 195 lib-$(CONFIG_DECOMPRESS_ZSTD) += decompress_unzstd.o 196 197 obj-$(CONFIG_TEXTSEARCH) += textsearch.o 198 obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o 199 obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o 200 obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o 201 obj-$(CONFIG_SMP) += percpu_counter.o 202 obj-$(CONFIG_AUDIT_GENERIC) += audit.o 203 obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o 204 205 obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o 206 obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o 207 obj-$(CONFIG_FAULT_INJECTION_USERCOPY) += fault-inject-usercopy.o 208 obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o 209 obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o 210 obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o 211 obj-$(CONFIG_MEMORY_NOTIFIER_ERROR_INJECT) += memory-notifier-error-inject.o 212 obj-$(CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT) += \ 213 of-reconfig-notifier-error-inject.o 214 obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o 215 216 obj-$(CONFIG_CODE_TAGGING) += codetag.o 217 obj-$(CONFIG_MEM_ALLOC_PROFILING) += alloc_tag.o 218 219 lib-$(CONFIG_GENERIC_BUG) += bug.o 220 221 obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o 222 obj-$(CONFIG_ARCH_NEED_CMPXCHG_1_EMU) += cmpxchg-emu.o 223 224 obj-$(CONFIG_DYNAMIC_DEBUG_CORE) += dynamic_debug.o 225 #ensure exported functions have prototypes 226 CFLAGS_dynamic_debug.o := -DDYNAMIC_DEBUG_MODULE 227 228 obj-$(CONFIG_SYMBOLIC_ERRNAME) += errname.o 229 230 obj-$(CONFIG_NLATTR) += nlattr.o 231 232 obj-$(CONFIG_LRU_CACHE) += lru_cache.o 233 234 obj-$(CONFIG_GENERIC_CSUM) += checksum.o 235 236 obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o 237 238 obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o 239 240 obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o 241 242 obj-$(CONFIG_CLOSURES) += closure.o 243 244 obj-$(CONFIG_DQL) += dynamic_queue_limits.o 245 246 obj-$(CONFIG_GLOB) += glob.o 247 obj-$(CONFIG_GLOB_SELFTEST) += globtest.o 248 249 obj-$(CONFIG_DIMLIB) += dim/ 250 obj-$(CONFIG_SIGNATURE) += digsig.o 251 252 lib-$(CONFIG_CLZ_TAB) += clz_tab.o 253 254 obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o 255 obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o 256 257 obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o 258 259 obj-$(CONFIG_SG_SPLIT) += sg_split.o 260 obj-$(CONFIG_SG_POOL) += sg_pool.o 261 obj-$(CONFIG_MEMREGION) += memregion.o 262 obj-$(CONFIG_STMP_DEVICE) += stmp_device.o 263 obj-$(CONFIG_IRQ_POLL) += irq_poll.o 264 265 obj-$(CONFIG_POLYNOMIAL) += polynomial.o 266 267 # stackdepot.c should not be instrumented or call instrumented functions. 268 # Prevent the compiler from calling builtins like memcmp() or bcmp() from this 269 # file. 270 CFLAGS_stackdepot.o += -fno-builtin 271 obj-$(CONFIG_STACKDEPOT) += stackdepot.o 272 KASAN_SANITIZE_stackdepot.o := n 273 # In particular, instrumenting stackdepot.c with KMSAN will result in infinite 274 # recursion. 275 KMSAN_SANITIZE_stackdepot.o := n 276 KCOV_INSTRUMENT_stackdepot.o := n 277 278 obj-$(CONFIG_REF_TRACKER) += ref_tracker.o 279 280 libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \ 281 fdt_empty_tree.o fdt_addresses.o 282 $(foreach file, $(libfdt_files), \ 283 $(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt)) 284 lib-$(CONFIG_LIBFDT) += $(libfdt_files) 285 286 obj-$(CONFIG_BOOT_CONFIG) += bootconfig.o 287 obj-$(CONFIG_BOOT_CONFIG_EMBED) += bootconfig-data.o 288 289 $(obj)/bootconfig-data.o: $(obj)/default.bconf 290 291 targets += default.bconf 292 filechk_defbconf = cat $(or $(real-prereqs), /dev/null) 293 $(obj)/default.bconf: $(CONFIG_BOOT_CONFIG_EMBED_FILE) FORCE 294 $(call filechk,defbconf) 295 296 obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o 297 obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o 298 299 obj-$(CONFIG_PERCPU_TEST) += percpu_test.o 300 301 obj-$(CONFIG_ASN1) += asn1_decoder.o 302 obj-$(CONFIG_ASN1_ENCODER) += asn1_encoder.o 303 304 obj-$(CONFIG_FONT_SUPPORT) += fonts/ 305 306 hostprogs := gen_crc32table 307 hostprogs += gen_crc64table 308 clean-files := crc32table.h 309 clean-files += crc64table.h 310 311 $(obj)/crc32.o: $(obj)/crc32table.h 312 313 quiet_cmd_crc32 = GEN $@ 314 cmd_crc32 = $< > $@ 315 316 $(obj)/crc32table.h: $(obj)/gen_crc32table 317 $(call cmd,crc32) 318 319 $(obj)/crc64.o: $(obj)/crc64table.h 320 321 quiet_cmd_crc64 = GEN $@ 322 cmd_crc64 = $< > $@ 323 324 $(obj)/crc64table.h: $(obj)/gen_crc64table 325 $(call cmd,crc64) 326 327 # 328 # Build a fast OID lookip registry from include/linux/oid_registry.h 329 # 330 obj-$(CONFIG_OID_REGISTRY) += oid_registry.o 331 332 $(obj)/oid_registry.o: $(obj)/oid_registry_data.c 333 334 $(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \ 335 $(src)/build_OID_registry 336 $(call cmd,build_OID_registry) 337 338 quiet_cmd_build_OID_registry = GEN $@ 339 cmd_build_OID_registry = perl $(src)/build_OID_registry $< $@ 340 341 clean-files += oid_registry_data.c 342 343 obj-$(CONFIG_UCS2_STRING) += ucs2_string.o 344 obj-$(CONFIG_UBSAN) += ubsan.o 345 346 UBSAN_SANITIZE_ubsan.o := n 347 KASAN_SANITIZE_ubsan.o := n 348 KCSAN_SANITIZE_ubsan.o := n 349 CFLAGS_ubsan.o := -fno-stack-protector $(DISABLE_STACKLEAK_PLUGIN) 350 351 obj-$(CONFIG_SBITMAP) += sbitmap.o 352 353 obj-$(CONFIG_PARMAN) += parman.o 354 355 obj-y += group_cpus.o 356 357 # GCC library routines 358 obj-$(CONFIG_GENERIC_LIB_ASHLDI3) += ashldi3.o 359 obj-$(CONFIG_GENERIC_LIB_ASHRDI3) += ashrdi3.o 360 obj-$(CONFIG_GENERIC_LIB_LSHRDI3) += lshrdi3.o 361 obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o 362 obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o 363 obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o 364 obj-$(CONFIG_OBJAGG) += objagg.o 365 366 # pldmfw library 367 obj-$(CONFIG_PLDMFW) += pldmfw/ 368 369 # KUnit tests 370 CFLAGS_bitfield_kunit.o := $(DISABLE_STRUCTLEAK_PLUGIN) 371 obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o 372 obj-$(CONFIG_CHECKSUM_KUNIT) += checksum_kunit.o 373 obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o 374 obj-$(CONFIG_HASHTABLE_KUNIT_TEST) += hashtable_test.o 375 obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o 376 obj-$(CONFIG_BITS_TEST) += test_bits.o 377 obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o 378 obj-$(CONFIG_SLUB_KUNIT_TEST) += slub_kunit.o 379 obj-$(CONFIG_MEMCPY_KUNIT_TEST) += memcpy_kunit.o 380 obj-$(CONFIG_IS_SIGNED_TYPE_KUNIT_TEST) += is_signed_type_kunit.o 381 CFLAGS_overflow_kunit.o = $(call cc-disable-warning, tautological-constant-out-of-range-compare) 382 obj-$(CONFIG_OVERFLOW_KUNIT_TEST) += overflow_kunit.o 383 CFLAGS_stackinit_kunit.o += $(call cc-disable-warning, switch-unreachable) 384 obj-$(CONFIG_STACKINIT_KUNIT_TEST) += stackinit_kunit.o 385 CFLAGS_fortify_kunit.o += $(call cc-disable-warning, unsequenced) 386 CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-overread) 387 CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-truncation) 388 CFLAGS_fortify_kunit.o += $(DISABLE_STRUCTLEAK_PLUGIN) 389 obj-$(CONFIG_FORTIFY_KUNIT_TEST) += fortify_kunit.o 390 obj-$(CONFIG_SIPHASH_KUNIT_TEST) += siphash_kunit.o 391 obj-$(CONFIG_USERCOPY_KUNIT_TEST) += usercopy_kunit.o 392 393 obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o 394 395 obj-$(CONFIG_FIRMWARE_TABLE) += fw_table.o 396 397 subdir-$(CONFIG_FORTIFY_SOURCE) += test_fortify
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