lib/Makefile

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