lib/Makefile

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