1 # SPDX-License-Identifier: GPL-2.0
3 # Makefile for some libs needed in the kernel.
6 ifdef CONFIG_FUNCTION_TRACER
7 ORIG_CFLAGS := $(KBUILD_CFLAGS)
8 KBUILD_CFLAGS = $(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS))
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
20 lib-y := ctype.o string.o vsprintf.o cmdline.o \
21 rbtree.o radix-tree.o timerqueue.o\
22 idr.o int_sqrt.o extable.o \
23 sha1.o chacha20.o irq_regs.o argv_split.o \
24 flex_proportions.o ratelimit.o show_mem.o \
25 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
26 earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
27 nmi_backtrace.o nodemask.o win_minmax.o
29 lib-$(CONFIG_PRINTK) += dump_stack.o
30 lib-$(CONFIG_MMU) += ioremap.o
31 lib-$(CONFIG_SMP) += cpumask.o
32 lib-$(CONFIG_DMA_DIRECT_OPS) += dma-direct.o
33 lib-$(CONFIG_DMA_NONCOHERENT_OPS) += dma-noncoherent.o
34 lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o
36 lib-y += kobject.o klist.o
39 obj-y += bcd.o div64.o sort.o parser.o debug_locks.o random32.o \
40 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
41 gcd.o lcm.o list_sort.o uuid.o flex_array.o iov_iter.o clz_ctz.o \
42 bsearch.o find_bit.o llist.o memweight.o kfifo.o \
43 percpu-refcount.o percpu_ida.o rhashtable.o reciprocal_div.o \
44 once.o refcount.o usercopy.o errseq.o bucket_locks.o
45 obj-$(CONFIG_STRING_SELFTEST) += test_string.o
46 obj-y += string_helpers.o
47 obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
49 obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
51 obj-$(CONFIG_FIND_BIT_BENCHMARK) += find_bit_benchmark.o
52 obj-$(CONFIG_TEST_BPF) += test_bpf.o
53 obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
54 obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o
55 obj-$(CONFIG_TEST_HASH) += test_hash.o test_siphash.o
56 obj-$(CONFIG_TEST_KASAN) += test_kasan.o
57 CFLAGS_test_kasan.o += -fno-builtin
58 obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o
59 UBSAN_SANITIZE_test_ubsan.o := y
60 obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
61 obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o
62 obj-$(CONFIG_TEST_LKM) += test_module.o
63 obj-$(CONFIG_TEST_OVERFLOW) += test_overflow.o
64 obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o
65 obj-$(CONFIG_TEST_SORT) += test_sort.o
66 obj-$(CONFIG_TEST_USER_COPY) += test_user_copy.o
67 obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o
68 obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o
69 obj-$(CONFIG_TEST_PRINTF) += test_printf.o
70 obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o
71 obj-$(CONFIG_TEST_UUID) += test_uuid.o
72 obj-$(CONFIG_TEST_PARMAN) += test_parman.o
73 obj-$(CONFIG_TEST_KMOD) += test_kmod.o
74 obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o
76 ifeq ($(CONFIG_DEBUG_KOBJECT),y)
77 CFLAGS_kobject.o += -DDEBUG
78 CFLAGS_kobject_uevent.o += -DDEBUG
81 obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
82 CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
84 obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
85 obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
86 obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
87 obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
88 obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
92 obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
94 obj-$(CONFIG_BTREE) += btree.o
95 obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
96 obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
97 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
98 obj-$(CONFIG_DEBUG_LIST) += list_debug.o
99 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
101 obj-$(CONFIG_BITREVERSE) += bitrev.o
102 obj-$(CONFIG_RATIONAL) += rational.o
103 obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o
104 obj-$(CONFIG_CRC16) += crc16.o
105 obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o
106 obj-$(CONFIG_CRC_ITU_T) += crc-itu-t.o
107 obj-$(CONFIG_CRC32) += crc32.o
108 obj-$(CONFIG_CRC32_SELFTEST) += crc32test.o
109 obj-$(CONFIG_CRC4) += crc4.o
110 obj-$(CONFIG_CRC7) += crc7.o
111 obj-$(CONFIG_LIBCRC32C) += libcrc32c.o
112 obj-$(CONFIG_CRC8) += crc8.o
113 obj-$(CONFIG_XXHASH) += xxhash.o
114 obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o
116 obj-$(CONFIG_842_COMPRESS) += 842/
117 obj-$(CONFIG_842_DECOMPRESS) += 842/
118 obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
119 obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
120 obj-$(CONFIG_REED_SOLOMON) += reed_solomon/
121 obj-$(CONFIG_BCH) += bch.o
122 obj-$(CONFIG_LZO_COMPRESS) += lzo/
123 obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
124 obj-$(CONFIG_LZ4_COMPRESS) += lz4/
125 obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/
126 obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/
127 obj-$(CONFIG_ZSTD_COMPRESS) += zstd/
128 obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd/
129 obj-$(CONFIG_XZ_DEC) += xz/
130 obj-$(CONFIG_RAID6_PQ) += raid6/
132 lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
133 lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
134 lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
135 lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o
136 lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
137 lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o
139 obj-$(CONFIG_TEXTSEARCH) += textsearch.o
140 obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
141 obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o
142 obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o
143 obj-$(CONFIG_SMP) += percpu_counter.o
144 obj-$(CONFIG_AUDIT_GENERIC) += audit.o
145 obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o
147 obj-$(CONFIG_SWIOTLB) += swiotlb.o
148 obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o
149 obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o
150 obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o
151 obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o
152 obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o
153 obj-$(CONFIG_MEMORY_NOTIFIER_ERROR_INJECT) += memory-notifier-error-inject.o
154 obj-$(CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT) += \
155 of-reconfig-notifier-error-inject.o
156 obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
158 lib-$(CONFIG_GENERIC_BUG) += bug.o
160 obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
162 obj-$(CONFIG_DYNAMIC_DEBUG) += dynamic_debug.o
164 obj-$(CONFIG_NLATTR) += nlattr.o
166 obj-$(CONFIG_LRU_CACHE) += lru_cache.o
168 obj-$(CONFIG_DMA_API_DEBUG) += dma-debug.o
170 obj-$(CONFIG_GENERIC_CSUM) += checksum.o
172 obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o
174 obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o
176 obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o
178 obj-$(CONFIG_CORDIC) += cordic.o
180 obj-$(CONFIG_DQL) += dynamic_queue_limits.o
182 obj-$(CONFIG_GLOB) += glob.o
183 obj-$(CONFIG_GLOB_SELFTEST) += globtest.o
185 obj-$(CONFIG_MPILIB) += mpi/
186 obj-$(CONFIG_SIGNATURE) += digsig.o
188 lib-$(CONFIG_CLZ_TAB) += clz_tab.o
190 obj-$(CONFIG_DDR) += jedec_ddr_data.o
192 obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
193 obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
195 obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o
197 obj-$(CONFIG_SG_SPLIT) += sg_split.o
198 obj-$(CONFIG_SG_POOL) += sg_pool.o
199 obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
200 obj-$(CONFIG_IRQ_POLL) += irq_poll.o
202 obj-$(CONFIG_STACKDEPOT) += stackdepot.o
203 KASAN_SANITIZE_stackdepot.o := n
204 KCOV_INSTRUMENT_stackdepot.o := n
206 libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
208 $(foreach file, $(libfdt_files), \
209 $(eval CFLAGS_$(file) = -I$(src)/../scripts/dtc/libfdt))
210 lib-$(CONFIG_LIBFDT) += $(libfdt_files)
212 obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o
213 obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o
215 obj-$(CONFIG_PERCPU_TEST) += percpu_test.o
217 obj-$(CONFIG_ASN1) += asn1_decoder.o
219 obj-$(CONFIG_FONT_SUPPORT) += fonts/
221 obj-$(CONFIG_PRIME_NUMBERS) += prime_numbers.o
223 hostprogs-y := gen_crc32table
224 clean-files := crc32table.h
226 $(obj)/crc32.o: $(obj)/crc32table.h
228 quiet_cmd_crc32 = GEN $@
231 $(obj)/crc32table.h: $(obj)/gen_crc32table
235 # Build a fast OID lookip registry from include/linux/oid_registry.h
237 obj-$(CONFIG_OID_REGISTRY) += oid_registry.o
239 $(obj)/oid_registry.o: $(obj)/oid_registry_data.c
241 $(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \
242 $(src)/build_OID_registry
243 $(call cmd,build_OID_registry)
245 quiet_cmd_build_OID_registry = GEN $@
246 cmd_build_OID_registry = perl $(srctree)/$(src)/build_OID_registry $< $@
248 clean-files += oid_registry_data.c
250 obj-$(CONFIG_UCS2_STRING) += ucs2_string.o
251 obj-$(CONFIG_UBSAN) += ubsan.o
253 UBSAN_SANITIZE_ubsan.o := n
255 obj-$(CONFIG_SBITMAP) += sbitmap.o
257 obj-$(CONFIG_PARMAN) += parman.o
259 # GCC library routines
260 obj-$(CONFIG_GENERIC_ASHLDI3) += ashldi3.o
261 obj-$(CONFIG_GENERIC_ASHRDI3) += ashrdi3.o
262 obj-$(CONFIG_GENERIC_LSHRDI3) += lshrdi3.o
263 obj-$(CONFIG_GENERIC_MULDI3) += muldi3.o
264 obj-$(CONFIG_GENERIC_CMPDI2) += cmpdi2.o
265 obj-$(CONFIG_GENERIC_UCMPDI2) += ucmpdi2.o