xref: /linux/lib/Makefile (revision 7f71507851fc7764b36a3221839607d3a45c2025) 
1# SPDX-License-Identifier: GPL-2.0
2#
3# Makefile for some libs needed in the kernel.
4#
5
6ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
7
8# These files are disabled because they produce lots of non-interesting and/or
9# flaky coverage that is not a function of syscall inputs. For example,
10# rbtree can be global and individual rotations don't correlate with inputs.
11KCOV_INSTRUMENT_string.o := n
12KCOV_INSTRUMENT_rbtree.o := n
13KCOV_INSTRUMENT_list_debug.o := n
14KCOV_INSTRUMENT_debugobjects.o := n
15KCOV_INSTRUMENT_dynamic_debug.o := n
16KCOV_INSTRUMENT_fault-inject.o := n
17KCOV_INSTRUMENT_find_bit.o := n
18
19# string.o implements standard library functions like memset/memcpy etc.
20# Use -ffreestanding to ensure that the compiler does not try to "optimize"
21# them into calls to themselves.
22CFLAGS_string.o := -ffreestanding
23
24# Early boot use of cmdline, don't instrument it
25ifdef CONFIG_AMD_MEM_ENCRYPT
26KASAN_SANITIZE_string.o := n
27
28CFLAGS_string.o += -fno-stack-protector
29endif
30
31lib-y := ctype.o string.o vsprintf.o cmdline.o \
32	 rbtree.o radix-tree.o timerqueue.o xarray.o \
33	 maple_tree.o idr.o extable.o irq_regs.o argv_split.o \
34	 flex_proportions.o ratelimit.o \
35	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
36	 earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
37	 nmi_backtrace.o win_minmax.o memcat_p.o \
38	 buildid.o objpool.o iomem_copy.o
39
40lib-$(CONFIG_UNION_FIND) += union_find.o
41lib-$(CONFIG_PRINTK) += dump_stack.o
42lib-$(CONFIG_SMP) += cpumask.o
43lib-$(CONFIG_MIN_HEAP) += min_heap.o
44
45lib-y	+= kobject.o klist.o
46obj-y	+= lockref.o
47
48obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \
49	 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
50	 list_sort.o uuid.o iov_iter.o clz_ctz.o \
51	 bsearch.o find_bit.o llist.o lwq.o memweight.o kfifo.o \
52	 percpu-refcount.o rhashtable.o base64.o \
53	 once.o refcount.o rcuref.o usercopy.o errseq.o bucket_locks.o \
54	 generic-radix-tree.o bitmap-str.o
55obj-$(CONFIG_STRING_KUNIT_TEST) += string_kunit.o
56obj-y += string_helpers.o
57obj-$(CONFIG_STRING_HELPERS_KUNIT_TEST) += string_helpers_kunit.o
58obj-y += hexdump.o
59obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
60obj-y += kstrtox.o
61obj-$(CONFIG_FIND_BIT_BENCHMARK) += find_bit_benchmark.o
62obj-$(CONFIG_TEST_BPF) += test_bpf.o
63test_dhry-objs := dhry_1.o dhry_2.o dhry_run.o
64obj-$(CONFIG_TEST_DHRY) += test_dhry.o
65obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
66obj-$(CONFIG_TEST_BITOPS) += test_bitops.o
67CFLAGS_test_bitops.o += -Werror
68obj-$(CONFIG_CPUMASK_KUNIT_TEST) += cpumask_kunit.o
69obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o
70obj-$(CONFIG_TEST_IOV_ITER) += kunit_iov_iter.o
71obj-$(CONFIG_HASH_KUNIT_TEST) += test_hash.o
72obj-$(CONFIG_TEST_IDA) += test_ida.o
73obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o
74CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla)
75CFLAGS_test_ubsan.o += $(call cc-disable-warning, unused-but-set-variable)
76UBSAN_SANITIZE_test_ubsan.o := y
77obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
78obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o
79obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o
80obj-$(CONFIG_TEST_LKM) += test_module.o
81obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o
82obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o
83obj-$(CONFIG_TEST_SORT) += test_sort.o
84obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o
85obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o
86obj-$(CONFIG_TEST_DYNAMIC_DEBUG) += test_dynamic_debug.o
87obj-$(CONFIG_TEST_PRINTF) += test_printf.o
88obj-$(CONFIG_TEST_SCANF) += test_scanf.o
89
90obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o
91ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_KASAN),yy)
92# FIXME: Clang breaks test_bitmap_const_eval when KASAN and GCOV are enabled
93GCOV_PROFILE_test_bitmap.o := n
94endif
95
96obj-$(CONFIG_TEST_UUID) += test_uuid.o
97obj-$(CONFIG_TEST_XARRAY) += test_xarray.o
98obj-$(CONFIG_TEST_MAPLE_TREE) += test_maple_tree.o
99obj-$(CONFIG_TEST_PARMAN) += test_parman.o
100obj-$(CONFIG_TEST_KMOD) += test_kmod.o
101obj-$(CONFIG_TEST_RUNTIME) += tests/
102obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o
103obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o
104obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o
105obj-$(CONFIG_TEST_BLACKHOLE_DEV) += test_blackhole_dev.o
106obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o
107obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o
108obj-$(CONFIG_TEST_HMM) += test_hmm.o
109obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o
110obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
111obj-$(CONFIG_TEST_REF_TRACKER) += test_ref_tracker.o
112CFLAGS_test_fprobe.o += $(CC_FLAGS_FTRACE)
113obj-$(CONFIG_FPROBE_SANITY_TEST) += test_fprobe.o
114obj-$(CONFIG_TEST_OBJPOOL) += test_objpool.o
115
116obj-$(CONFIG_TEST_FPU) += test_fpu.o
117test_fpu-y := test_fpu_glue.o test_fpu_impl.o
118CFLAGS_test_fpu_impl.o += $(CC_FLAGS_FPU)
119CFLAGS_REMOVE_test_fpu_impl.o += $(CC_FLAGS_NO_FPU)
120
121# Some KUnit files (hooks.o) need to be built-in even when KUnit is a module,
122# so we can't just use obj-$(CONFIG_KUNIT).
123ifdef CONFIG_KUNIT
124obj-y += kunit/
125endif
126
127ifeq ($(CONFIG_DEBUG_KOBJECT),y)
128CFLAGS_kobject.o += -DDEBUG
129CFLAGS_kobject_uevent.o += -DDEBUG
130endif
131
132obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
133CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
134
135obj-y += math/ crypto/
136
137obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
138obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
139obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
140obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
141
142lib-y += logic_pio.o
143
144lib-$(CONFIG_INDIRECT_IOMEM) += logic_iomem.o
145
146obj-$(CONFIG_TRACE_MMIO_ACCESS) += trace_readwrite.o
147
148obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
149
150obj-$(CONFIG_BTREE) += btree.o
151obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
152obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
153obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
154obj-$(CONFIG_LIST_HARDENED) += list_debug.o
155obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
156
157obj-$(CONFIG_BITREVERSE) += bitrev.o
158obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o
159obj-$(CONFIG_PACKING)	+= packing.o
160obj-$(CONFIG_PACKING_KUNIT_TEST) += packing_test.o
161obj-$(CONFIG_CRC_CCITT)	+= crc-ccitt.o
162obj-$(CONFIG_CRC16)	+= crc16.o
163obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o
164obj-$(CONFIG_CRC_ITU_T)	+= crc-itu-t.o
165obj-$(CONFIG_CRC32)	+= crc32.o
166obj-$(CONFIG_CRC64)     += crc64.o
167obj-$(CONFIG_CRC32_SELFTEST)	+= crc32test.o
168obj-$(CONFIG_CRC4)	+= crc4.o
169obj-$(CONFIG_CRC7)	+= crc7.o
170obj-$(CONFIG_LIBCRC32C)	+= libcrc32c.o
171obj-$(CONFIG_CRC8)	+= crc8.o
172obj-$(CONFIG_CRC64_ROCKSOFT) += crc64-rocksoft.o
173obj-$(CONFIG_XXHASH)	+= xxhash.o
174obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o
175
176obj-$(CONFIG_842_COMPRESS) += 842/
177obj-$(CONFIG_842_DECOMPRESS) += 842/
178obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
179obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
180obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc/
181obj-$(CONFIG_REED_SOLOMON) += reed_solomon/
182obj-$(CONFIG_BCH) += bch.o
183obj-$(CONFIG_LZO_COMPRESS) += lzo/
184obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
185obj-$(CONFIG_LZ4_COMPRESS) += lz4/
186obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/
187obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/
188obj-$(CONFIG_ZSTD_COMPRESS) += zstd/
189obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd/
190obj-$(CONFIG_XZ_DEC) += xz/
191obj-$(CONFIG_RAID6_PQ) += raid6/
192
193lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
194lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
195lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
196lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o
197lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
198lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o
199lib-$(CONFIG_DECOMPRESS_ZSTD) += decompress_unzstd.o
200
201obj-$(CONFIG_TEXTSEARCH) += textsearch.o
202obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
203obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o
204obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o
205obj-$(CONFIG_SMP) += percpu_counter.o
206obj-$(CONFIG_AUDIT_GENERIC) += audit.o
207obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o
208
209obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o
210obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o
211obj-$(CONFIG_FAULT_INJECTION_USERCOPY) += fault-inject-usercopy.o
212obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o
213obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o
214obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o
215obj-$(CONFIG_MEMORY_NOTIFIER_ERROR_INJECT) += memory-notifier-error-inject.o
216obj-$(CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT) += \
217	of-reconfig-notifier-error-inject.o
218obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
219
220obj-$(CONFIG_CODE_TAGGING) += codetag.o
221obj-$(CONFIG_MEM_ALLOC_PROFILING) += alloc_tag.o
222
223lib-$(CONFIG_GENERIC_BUG) += bug.o
224
225obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
226obj-$(CONFIG_ARCH_NEED_CMPXCHG_1_EMU) += cmpxchg-emu.o
227
228obj-$(CONFIG_DYNAMIC_DEBUG_CORE) += dynamic_debug.o
229#ensure exported functions have prototypes
230CFLAGS_dynamic_debug.o := -DDYNAMIC_DEBUG_MODULE
231
232obj-$(CONFIG_SYMBOLIC_ERRNAME) += errname.o
233
234obj-$(CONFIG_NLATTR) += nlattr.o
235
236obj-$(CONFIG_LRU_CACHE) += lru_cache.o
237
238obj-$(CONFIG_GENERIC_CSUM) += checksum.o
239
240obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o
241
242obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o
243
244obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o
245
246obj-$(CONFIG_CLOSURES) += closure.o
247
248obj-$(CONFIG_DQL) += dynamic_queue_limits.o
249
250obj-$(CONFIG_GLOB) += glob.o
251obj-$(CONFIG_GLOB_SELFTEST) += globtest.o
252
253obj-$(CONFIG_DIMLIB) += dim/
254obj-$(CONFIG_SIGNATURE) += digsig.o
255
256lib-$(CONFIG_CLZ_TAB) += clz_tab.o
257
258obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
259obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
260
261obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o
262
263obj-$(CONFIG_SG_SPLIT) += sg_split.o
264obj-$(CONFIG_SG_POOL) += sg_pool.o
265obj-$(CONFIG_MEMREGION) += memregion.o
266obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
267obj-$(CONFIG_IRQ_POLL) += irq_poll.o
268
269obj-$(CONFIG_POLYNOMIAL) += polynomial.o
270
271# stackdepot.c should not be instrumented or call instrumented functions.
272# Prevent the compiler from calling builtins like memcmp() or bcmp() from this
273# file.
274CFLAGS_stackdepot.o += -fno-builtin
275obj-$(CONFIG_STACKDEPOT) += stackdepot.o
276KASAN_SANITIZE_stackdepot.o := n
277# In particular, instrumenting stackdepot.c with KMSAN will result in infinite
278# recursion.
279KMSAN_SANITIZE_stackdepot.o := n
280KCOV_INSTRUMENT_stackdepot.o := n
281
282obj-$(CONFIG_REF_TRACKER) += ref_tracker.o
283
284libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
285	       fdt_empty_tree.o fdt_addresses.o
286$(foreach file, $(libfdt_files), \
287	$(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt))
288lib-$(CONFIG_LIBFDT) += $(libfdt_files)
289
290obj-$(CONFIG_BOOT_CONFIG) += bootconfig.o
291obj-$(CONFIG_BOOT_CONFIG_EMBED) += bootconfig-data.o
292
293$(obj)/bootconfig-data.o: $(obj)/default.bconf
294
295targets += default.bconf
296filechk_defbconf = cat $(or $(real-prereqs), /dev/null)
297$(obj)/default.bconf: $(CONFIG_BOOT_CONFIG_EMBED_FILE) FORCE
298	$(call filechk,defbconf)
299
300obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o
301obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o
302
303obj-$(CONFIG_PERCPU_TEST) += percpu_test.o
304
305obj-$(CONFIG_ASN1) += asn1_decoder.o
306obj-$(CONFIG_ASN1_ENCODER) += asn1_encoder.o
307
308obj-$(CONFIG_FONT_SUPPORT) += fonts/
309
310hostprogs	:= gen_crc32table
311hostprogs	+= gen_crc64table
312clean-files	:= crc32table.h
313clean-files	+= crc64table.h
314
315$(obj)/crc32.o: $(obj)/crc32table.h
316
317quiet_cmd_crc32 = GEN     $@
318      cmd_crc32 = $< > $@
319
320$(obj)/crc32table.h: $(obj)/gen_crc32table
321	$(call cmd,crc32)
322
323$(obj)/crc64.o: $(obj)/crc64table.h
324
325quiet_cmd_crc64 = GEN     $@
326      cmd_crc64 = $< > $@
327
328$(obj)/crc64table.h: $(obj)/gen_crc64table
329	$(call cmd,crc64)
330
331#
332# Build a fast OID lookip registry from include/linux/oid_registry.h
333#
334obj-$(CONFIG_OID_REGISTRY) += oid_registry.o
335
336$(obj)/oid_registry.o: $(obj)/oid_registry_data.c
337
338$(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \
339			    $(src)/build_OID_registry
340	$(call cmd,build_OID_registry)
341
342quiet_cmd_build_OID_registry = GEN     $@
343      cmd_build_OID_registry = perl $(src)/build_OID_registry $< $@
344
345clean-files	+= oid_registry_data.c
346
347obj-$(CONFIG_UCS2_STRING) += ucs2_string.o
348obj-$(CONFIG_UBSAN) += ubsan.o
349
350UBSAN_SANITIZE_ubsan.o := n
351KASAN_SANITIZE_ubsan.o := n
352KCSAN_SANITIZE_ubsan.o := n
353CFLAGS_ubsan.o := -fno-stack-protector $(DISABLE_STACKLEAK_PLUGIN)
354
355obj-$(CONFIG_SBITMAP) += sbitmap.o
356
357obj-$(CONFIG_PARMAN) += parman.o
358
359obj-y += group_cpus.o
360
361# GCC library routines
362obj-$(CONFIG_GENERIC_LIB_ASHLDI3) += ashldi3.o
363obj-$(CONFIG_GENERIC_LIB_ASHRDI3) += ashrdi3.o
364obj-$(CONFIG_GENERIC_LIB_LSHRDI3) += lshrdi3.o
365obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o
366obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o
367obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o
368obj-$(CONFIG_OBJAGG) += objagg.o
369
370# pldmfw library
371obj-$(CONFIG_PLDMFW) += pldmfw/
372
373# KUnit tests
374CFLAGS_bitfield_kunit.o := $(DISABLE_STRUCTLEAK_PLUGIN)
375obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o
376obj-$(CONFIG_CHECKSUM_KUNIT) += checksum_kunit.o
377obj-$(CONFIG_UTIL_MACROS_KUNIT) += util_macros_kunit.o
378obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
379obj-$(CONFIG_HASHTABLE_KUNIT_TEST) += hashtable_test.o
380obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o
381obj-$(CONFIG_BITS_TEST) += test_bits.o
382obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o
383obj-$(CONFIG_SLUB_KUNIT_TEST) += slub_kunit.o
384obj-$(CONFIG_MEMCPY_KUNIT_TEST) += memcpy_kunit.o
385obj-$(CONFIG_IS_SIGNED_TYPE_KUNIT_TEST) += is_signed_type_kunit.o
386CFLAGS_overflow_kunit.o = $(call cc-disable-warning, tautological-constant-out-of-range-compare)
387obj-$(CONFIG_OVERFLOW_KUNIT_TEST) += overflow_kunit.o
388CFLAGS_stackinit_kunit.o += $(call cc-disable-warning, switch-unreachable)
389obj-$(CONFIG_STACKINIT_KUNIT_TEST) += stackinit_kunit.o
390CFLAGS_fortify_kunit.o += $(call cc-disable-warning, unsequenced)
391CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-overread)
392CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-truncation)
393CFLAGS_fortify_kunit.o += $(DISABLE_STRUCTLEAK_PLUGIN)
394obj-$(CONFIG_FORTIFY_KUNIT_TEST) += fortify_kunit.o
395obj-$(CONFIG_SIPHASH_KUNIT_TEST) += siphash_kunit.o
396obj-$(CONFIG_USERCOPY_KUNIT_TEST) += usercopy_kunit.o
397obj-$(CONFIG_CRC16_KUNIT_TEST) += crc16_kunit.o
398
399obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o
400
401obj-$(CONFIG_FIRMWARE_TABLE) += fw_table.o
402
403subdir-$(CONFIG_FORTIFY_SOURCE) += test_fortify
404