linux/lib/Makefile
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   1#
   2# Makefile for some libs needed in the kernel.
   3#
   4
   5ifdef CONFIG_FUNCTION_TRACER
   6ORIG_CFLAGS := $(KBUILD_CFLAGS)
   7KBUILD_CFLAGS = $(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS))
   8endif
   9
  10# These files are disabled because they produce lots of non-interesting and/or
  11# flaky coverage that is not a function of syscall inputs. For example,
  12# rbtree can be global and individual rotations don't correlate with inputs.
  13KCOV_INSTRUMENT_string.o := n
  14KCOV_INSTRUMENT_rbtree.o := n
  15KCOV_INSTRUMENT_list_debug.o := n
  16KCOV_INSTRUMENT_debugobjects.o := n
  17KCOV_INSTRUMENT_dynamic_debug.o := n
  18
  19lib-y := ctype.o string.o vsprintf.o cmdline.o \
  20         rbtree.o radix-tree.o dump_stack.o timerqueue.o\
  21         idr.o int_sqrt.o extable.o \
  22         sha1.o chacha20.o md5.o irq_regs.o argv_split.o \
  23         flex_proportions.o ratelimit.o show_mem.o \
  24         is_single_threaded.o plist.o decompress.o kobject_uevent.o \
  25         earlycpio.o seq_buf.o nmi_backtrace.o nodemask.o win_minmax.o
  26
  27lib-$(CONFIG_MMU) += ioremap.o
  28lib-$(CONFIG_SMP) += cpumask.o
  29lib-$(CONFIG_HAS_DMA) += dma-noop.o
  30
  31lib-y   += kobject.o klist.o
  32obj-y   += lockref.o
  33
  34obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
  35         bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
  36         gcd.o lcm.o list_sort.o uuid.o flex_array.o iov_iter.o clz_ctz.o \
  37         bsearch.o find_bit.o llist.o memweight.o kfifo.o \
  38         percpu-refcount.o percpu_ida.o rhashtable.o reciprocal_div.o \
  39         once.o
  40obj-y += string_helpers.o
  41obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
  42obj-y += hexdump.o
  43obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
  44obj-y += kstrtox.o
  45obj-$(CONFIG_TEST_BPF) += test_bpf.o
  46obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
  47obj-$(CONFIG_TEST_HASH) += test_hash.o
  48obj-$(CONFIG_TEST_KASAN) += test_kasan.o
  49obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
  50obj-$(CONFIG_TEST_LKM) += test_module.o
  51obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o
  52obj-$(CONFIG_TEST_USER_COPY) += test_user_copy.o
  53obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o
  54obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o
  55obj-$(CONFIG_TEST_PRINTF) += test_printf.o
  56obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o
  57obj-$(CONFIG_TEST_UUID) += test_uuid.o
  58
  59ifeq ($(CONFIG_DEBUG_KOBJECT),y)
  60CFLAGS_kobject.o += -DDEBUG
  61CFLAGS_kobject_uevent.o += -DDEBUG
  62endif
  63
  64obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
  65CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
  66
  67obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
  68obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
  69obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
  70obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
  71obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
  72
  73obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
  74
  75obj-$(CONFIG_BTREE) += btree.o
  76obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
  77obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
  78obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
  79obj-$(CONFIG_DEBUG_LIST) += list_debug.o
  80obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
  81
  82ifneq ($(CONFIG_HAVE_DEC_LOCK),y)
  83  lib-y += dec_and_lock.o
  84endif
  85
  86obj-$(CONFIG_BITREVERSE) += bitrev.o
  87obj-$(CONFIG_RATIONAL)  += rational.o
  88obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o
  89obj-$(CONFIG_CRC16)     += crc16.o
  90obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o
  91obj-$(CONFIG_CRC_ITU_T) += crc-itu-t.o
  92obj-$(CONFIG_CRC32)     += crc32.o
  93obj-$(CONFIG_CRC7)      += crc7.o
  94obj-$(CONFIG_LIBCRC32C) += libcrc32c.o
  95obj-$(CONFIG_CRC8)      += crc8.o
  96obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o
  97
  98obj-$(CONFIG_842_COMPRESS) += 842/
  99obj-$(CONFIG_842_DECOMPRESS) += 842/
 100obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
 101obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
 102obj-$(CONFIG_REED_SOLOMON) += reed_solomon/
 103obj-$(CONFIG_BCH) += bch.o
 104obj-$(CONFIG_LZO_COMPRESS) += lzo/
 105obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
 106obj-$(CONFIG_LZ4_COMPRESS) += lz4/
 107obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/
 108obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/
 109obj-$(CONFIG_XZ_DEC) += xz/
 110obj-$(CONFIG_RAID6_PQ) += raid6/
 111
 112lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
 113lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
 114lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
 115lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o
 116lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
 117lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o
 118
 119obj-$(CONFIG_TEXTSEARCH) += textsearch.o
 120obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
 121obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o
 122obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o
 123obj-$(CONFIG_SMP) += percpu_counter.o
 124obj-$(CONFIG_AUDIT_GENERIC) += audit.o
 125obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o
 126
 127obj-$(CONFIG_SWIOTLB) += swiotlb.o
 128obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o iommu-common.o
 129obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o
 130obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o
 131obj-$(CONFIG_CPU_NOTIFIER_ERROR_INJECT) += cpu-notifier-error-inject.o
 132obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o
 133obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o
 134obj-$(CONFIG_MEMORY_NOTIFIER_ERROR_INJECT) += memory-notifier-error-inject.o
 135obj-$(CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT) += \
 136        of-reconfig-notifier-error-inject.o
 137
 138lib-$(CONFIG_GENERIC_BUG) += bug.o
 139
 140obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
 141
 142obj-$(CONFIG_DYNAMIC_DEBUG) += dynamic_debug.o
 143
 144obj-$(CONFIG_NLATTR) += nlattr.o
 145
 146obj-$(CONFIG_LRU_CACHE) += lru_cache.o
 147
 148obj-$(CONFIG_DMA_API_DEBUG) += dma-debug.o
 149
 150obj-$(CONFIG_GENERIC_CSUM) += checksum.o
 151
 152obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o
 153
 154obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o
 155
 156obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o
 157
 158obj-$(CONFIG_CORDIC) += cordic.o
 159
 160obj-$(CONFIG_DQL) += dynamic_queue_limits.o
 161
 162obj-$(CONFIG_GLOB) += glob.o
 163
 164obj-$(CONFIG_MPILIB) += mpi/
 165obj-$(CONFIG_SIGNATURE) += digsig.o
 166
 167lib-$(CONFIG_CLZ_TAB) += clz_tab.o
 168
 169obj-$(CONFIG_DDR) += jedec_ddr_data.o
 170
 171obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
 172obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
 173
 174obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o
 175
 176obj-$(CONFIG_SG_SPLIT) += sg_split.o
 177obj-$(CONFIG_SG_POOL) += sg_pool.o
 178obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
 179obj-$(CONFIG_IRQ_POLL) += irq_poll.o
 180
 181obj-$(CONFIG_STACKDEPOT) += stackdepot.o
 182KASAN_SANITIZE_stackdepot.o := n
 183KCOV_INSTRUMENT_stackdepot.o := n
 184
 185libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
 186               fdt_empty_tree.o
 187$(foreach file, $(libfdt_files), \
 188        $(eval CFLAGS_$(file) = -I$(src)/../scripts/dtc/libfdt))
 189lib-$(CONFIG_LIBFDT) += $(libfdt_files)
 190
 191obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o
 192obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o
 193
 194obj-$(CONFIG_PERCPU_TEST) += percpu_test.o
 195
 196obj-$(CONFIG_ASN1) += asn1_decoder.o
 197
 198obj-$(CONFIG_FONT_SUPPORT) += fonts/
 199
 200hostprogs-y     := gen_crc32table
 201clean-files     := crc32table.h
 202
 203$(obj)/crc32.o: $(obj)/crc32table.h
 204
 205quiet_cmd_crc32 = GEN     $@
 206      cmd_crc32 = $< > $@
 207
 208$(obj)/crc32table.h: $(obj)/gen_crc32table
 209        $(call cmd,crc32)
 210
 211#
 212# Build a fast OID lookip registry from include/linux/oid_registry.h
 213#
 214obj-$(CONFIG_OID_REGISTRY) += oid_registry.o
 215
 216$(obj)/oid_registry.o: $(obj)/oid_registry_data.c
 217
 218$(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \
 219                            $(src)/build_OID_registry
 220        $(call cmd,build_OID_registry)
 221
 222quiet_cmd_build_OID_registry = GEN     $@
 223      cmd_build_OID_registry = perl $(srctree)/$(src)/build_OID_registry $< $@
 224
 225clean-files     += oid_registry_data.c
 226
 227obj-$(CONFIG_UCS2_STRING) += ucs2_string.o
 228obj-$(CONFIG_UBSAN) += ubsan.o
 229
 230UBSAN_SANITIZE_ubsan.o := n
 231
 232obj-$(CONFIG_SBITMAP) += sbitmap.o
 233