xref: /linux/lib/Makefile (revision 55d0969c451159cff86949b38c39171cab962069) 
1# SPDX-License-Identifier: GPL-2.0
2#
3# Makefile for some libs needed in the kernel.
4#
5
6ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
7
8# These files are disabled because they produce lots of non-interesting and/or
9# flaky coverage that is not a function of syscall inputs. For example,
10# rbtree can be global and individual rotations don't correlate with inputs.
11KCOV_INSTRUMENT_string.o := n
12KCOV_INSTRUMENT_rbtree.o := n
13KCOV_INSTRUMENT_list_debug.o := n
14KCOV_INSTRUMENT_debugobjects.o := n
15KCOV_INSTRUMENT_dynamic_debug.o := n
16KCOV_INSTRUMENT_fault-inject.o := n
17KCOV_INSTRUMENT_find_bit.o := n
18
19# string.o implements standard library functions like memset/memcpy etc.
20# Use -ffreestanding to ensure that the compiler does not try to "optimize"
21# them into calls to themselves.
22CFLAGS_string.o := -ffreestanding
23
24# Early boot use of cmdline, don't instrument it
25ifdef CONFIG_AMD_MEM_ENCRYPT
26KASAN_SANITIZE_string.o := n
27
28CFLAGS_string.o += -fno-stack-protector
29endif
30
31lib-y := ctype.o string.o vsprintf.o cmdline.o \
32	 rbtree.o radix-tree.o timerqueue.o xarray.o \
33	 maple_tree.o idr.o extable.o irq_regs.o argv_split.o \
34	 flex_proportions.o ratelimit.o \
35	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
36	 earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
37	 nmi_backtrace.o win_minmax.o memcat_p.o \
38	 buildid.o objpool.o union_find.o
39
40lib-$(CONFIG_PRINTK) += dump_stack.o
41lib-$(CONFIG_SMP) += cpumask.o
42
43lib-y	+= kobject.o klist.o
44obj-y	+= lockref.o
45
46obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \
47	 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
48	 list_sort.o uuid.o iov_iter.o clz_ctz.o \
49	 bsearch.o find_bit.o llist.o lwq.o memweight.o kfifo.o \
50	 percpu-refcount.o rhashtable.o base64.o \
51	 once.o refcount.o rcuref.o usercopy.o errseq.o bucket_locks.o \
52	 generic-radix-tree.o bitmap-str.o
53obj-$(CONFIG_STRING_KUNIT_TEST) += string_kunit.o
54obj-y += string_helpers.o
55obj-$(CONFIG_STRING_HELPERS_KUNIT_TEST) += string_helpers_kunit.o
56obj-y += hexdump.o
57obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
58obj-y += kstrtox.o
59obj-$(CONFIG_FIND_BIT_BENCHMARK) += find_bit_benchmark.o
60obj-$(CONFIG_TEST_BPF) += test_bpf.o
61test_dhry-objs := dhry_1.o dhry_2.o dhry_run.o
62obj-$(CONFIG_TEST_DHRY) += test_dhry.o
63obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
64obj-$(CONFIG_TEST_BITOPS) += test_bitops.o
65CFLAGS_test_bitops.o += -Werror
66obj-$(CONFIG_CPUMASK_KUNIT_TEST) += cpumask_kunit.o
67obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o
68obj-$(CONFIG_TEST_IOV_ITER) += kunit_iov_iter.o
69obj-$(CONFIG_HASH_KUNIT_TEST) += test_hash.o
70obj-$(CONFIG_TEST_IDA) += test_ida.o
71obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o
72CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla)
73CFLAGS_test_ubsan.o += $(call cc-disable-warning, unused-but-set-variable)
74UBSAN_SANITIZE_test_ubsan.o := y
75obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
76obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o
77obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o
78obj-$(CONFIG_TEST_LKM) += test_module.o
79obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o
80obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o
81obj-$(CONFIG_TEST_SORT) += test_sort.o
82obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o
83obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o
84obj-$(CONFIG_TEST_DYNAMIC_DEBUG) += test_dynamic_debug.o
85obj-$(CONFIG_TEST_PRINTF) += test_printf.o
86obj-$(CONFIG_TEST_SCANF) += test_scanf.o
87
88obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o
89ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_KASAN),yy)
90# FIXME: Clang breaks test_bitmap_const_eval when KASAN and GCOV are enabled
91GCOV_PROFILE_test_bitmap.o := n
92endif
93
94obj-$(CONFIG_TEST_UUID) += test_uuid.o
95obj-$(CONFIG_TEST_XARRAY) += test_xarray.o
96obj-$(CONFIG_TEST_MAPLE_TREE) += test_maple_tree.o
97obj-$(CONFIG_TEST_PARMAN) += test_parman.o
98obj-$(CONFIG_TEST_KMOD) += test_kmod.o
99obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o
100obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o
101obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o
102obj-$(CONFIG_TEST_BLACKHOLE_DEV) += test_blackhole_dev.o
103obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o
104obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o
105obj-$(CONFIG_TEST_HMM) += test_hmm.o
106obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o
107obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
108obj-$(CONFIG_TEST_REF_TRACKER) += test_ref_tracker.o
109CFLAGS_test_fprobe.o += $(CC_FLAGS_FTRACE)
110obj-$(CONFIG_FPROBE_SANITY_TEST) += test_fprobe.o
111obj-$(CONFIG_TEST_OBJPOOL) += test_objpool.o
112
113obj-$(CONFIG_TEST_FPU) += test_fpu.o
114test_fpu-y := test_fpu_glue.o test_fpu_impl.o
115CFLAGS_test_fpu_impl.o += $(CC_FLAGS_FPU)
116CFLAGS_REMOVE_test_fpu_impl.o += $(CC_FLAGS_NO_FPU)
117
118# Some KUnit files (hooks.o) need to be built-in even when KUnit is a module,
119# so we can't just use obj-$(CONFIG_KUNIT).
120ifdef CONFIG_KUNIT
121obj-y += kunit/
122endif
123
124ifeq ($(CONFIG_DEBUG_KOBJECT),y)
125CFLAGS_kobject.o += -DDEBUG
126CFLAGS_kobject_uevent.o += -DDEBUG
127endif
128
129obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
130CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
131
132obj-y += math/ crypto/
133
134obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
135obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
136obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
137obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
138
139lib-y += logic_pio.o
140
141lib-$(CONFIG_INDIRECT_IOMEM) += logic_iomem.o
142
143obj-$(CONFIG_TRACE_MMIO_ACCESS) += trace_readwrite.o
144
145obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
146
147obj-$(CONFIG_BTREE) += btree.o
148obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
149obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
150obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
151obj-$(CONFIG_LIST_HARDENED) += list_debug.o
152obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
153
154obj-$(CONFIG_BITREVERSE) += bitrev.o
155obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o
156obj-$(CONFIG_PACKING)	+= packing.o
157obj-$(CONFIG_CRC_CCITT)	+= crc-ccitt.o
158obj-$(CONFIG_CRC16)	+= crc16.o
159obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o
160obj-$(CONFIG_CRC_ITU_T)	+= crc-itu-t.o
161obj-$(CONFIG_CRC32)	+= crc32.o
162obj-$(CONFIG_CRC64)     += crc64.o
163obj-$(CONFIG_CRC32_SELFTEST)	+= crc32test.o
164obj-$(CONFIG_CRC4)	+= crc4.o
165obj-$(CONFIG_CRC7)	+= crc7.o
166obj-$(CONFIG_LIBCRC32C)	+= libcrc32c.o
167obj-$(CONFIG_CRC8)	+= crc8.o
168obj-$(CONFIG_CRC64_ROCKSOFT) += crc64-rocksoft.o
169obj-$(CONFIG_XXHASH)	+= xxhash.o
170obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o
171
172obj-$(CONFIG_842_COMPRESS) += 842/
173obj-$(CONFIG_842_DECOMPRESS) += 842/
174obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
175obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
176obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc/
177obj-$(CONFIG_REED_SOLOMON) += reed_solomon/
178obj-$(CONFIG_BCH) += bch.o
179obj-$(CONFIG_LZO_COMPRESS) += lzo/
180obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
181obj-$(CONFIG_LZ4_COMPRESS) += lz4/
182obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/
183obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/
184obj-$(CONFIG_ZSTD_COMPRESS) += zstd/
185obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd/
186obj-$(CONFIG_XZ_DEC) += xz/
187obj-$(CONFIG_RAID6_PQ) += raid6/
188
189lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
190lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
191lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
192lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o
193lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
194lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o
195lib-$(CONFIG_DECOMPRESS_ZSTD) += decompress_unzstd.o
196
197obj-$(CONFIG_TEXTSEARCH) += textsearch.o
198obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
199obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o
200obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o
201obj-$(CONFIG_SMP) += percpu_counter.o
202obj-$(CONFIG_AUDIT_GENERIC) += audit.o
203obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o
204
205obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o
206obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o
207obj-$(CONFIG_FAULT_INJECTION_USERCOPY) += fault-inject-usercopy.o
208obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o
209obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o
210obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o
211obj-$(CONFIG_MEMORY_NOTIFIER_ERROR_INJECT) += memory-notifier-error-inject.o
212obj-$(CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT) += \
213	of-reconfig-notifier-error-inject.o
214obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
215
216obj-$(CONFIG_CODE_TAGGING) += codetag.o
217obj-$(CONFIG_MEM_ALLOC_PROFILING) += alloc_tag.o
218
219lib-$(CONFIG_GENERIC_BUG) += bug.o
220
221obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
222obj-$(CONFIG_ARCH_NEED_CMPXCHG_1_EMU) += cmpxchg-emu.o
223
224obj-$(CONFIG_DYNAMIC_DEBUG_CORE) += dynamic_debug.o
225#ensure exported functions have prototypes
226CFLAGS_dynamic_debug.o := -DDYNAMIC_DEBUG_MODULE
227
228obj-$(CONFIG_SYMBOLIC_ERRNAME) += errname.o
229
230obj-$(CONFIG_NLATTR) += nlattr.o
231
232obj-$(CONFIG_LRU_CACHE) += lru_cache.o
233
234obj-$(CONFIG_GENERIC_CSUM) += checksum.o
235
236obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o
237
238obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o
239
240obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o
241
242obj-$(CONFIG_CLOSURES) += closure.o
243
244obj-$(CONFIG_DQL) += dynamic_queue_limits.o
245
246obj-$(CONFIG_GLOB) += glob.o
247obj-$(CONFIG_GLOB_SELFTEST) += globtest.o
248
249obj-$(CONFIG_DIMLIB) += dim/
250obj-$(CONFIG_SIGNATURE) += digsig.o
251
252lib-$(CONFIG_CLZ_TAB) += clz_tab.o
253
254obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
255obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
256
257obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o
258
259obj-$(CONFIG_SG_SPLIT) += sg_split.o
260obj-$(CONFIG_SG_POOL) += sg_pool.o
261obj-$(CONFIG_MEMREGION) += memregion.o
262obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
263obj-$(CONFIG_IRQ_POLL) += irq_poll.o
264
265obj-$(CONFIG_POLYNOMIAL) += polynomial.o
266
267# stackdepot.c should not be instrumented or call instrumented functions.
268# Prevent the compiler from calling builtins like memcmp() or bcmp() from this
269# file.
270CFLAGS_stackdepot.o += -fno-builtin
271obj-$(CONFIG_STACKDEPOT) += stackdepot.o
272KASAN_SANITIZE_stackdepot.o := n
273# In particular, instrumenting stackdepot.c with KMSAN will result in infinite
274# recursion.
275KMSAN_SANITIZE_stackdepot.o := n
276KCOV_INSTRUMENT_stackdepot.o := n
277
278obj-$(CONFIG_REF_TRACKER) += ref_tracker.o
279
280libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
281	       fdt_empty_tree.o fdt_addresses.o
282$(foreach file, $(libfdt_files), \
283	$(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt))
284lib-$(CONFIG_LIBFDT) += $(libfdt_files)
285
286obj-$(CONFIG_BOOT_CONFIG) += bootconfig.o
287obj-$(CONFIG_BOOT_CONFIG_EMBED) += bootconfig-data.o
288
289$(obj)/bootconfig-data.o: $(obj)/default.bconf
290
291targets += default.bconf
292filechk_defbconf = cat $(or $(real-prereqs), /dev/null)
293$(obj)/default.bconf: $(CONFIG_BOOT_CONFIG_EMBED_FILE) FORCE
294	$(call filechk,defbconf)
295
296obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o
297obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o
298
299obj-$(CONFIG_PERCPU_TEST) += percpu_test.o
300
301obj-$(CONFIG_ASN1) += asn1_decoder.o
302obj-$(CONFIG_ASN1_ENCODER) += asn1_encoder.o
303
304obj-$(CONFIG_FONT_SUPPORT) += fonts/
305
306hostprogs	:= gen_crc32table
307hostprogs	+= gen_crc64table
308clean-files	:= crc32table.h
309clean-files	+= crc64table.h
310
311$(obj)/crc32.o: $(obj)/crc32table.h
312
313quiet_cmd_crc32 = GEN     $@
314      cmd_crc32 = $< > $@
315
316$(obj)/crc32table.h: $(obj)/gen_crc32table
317	$(call cmd,crc32)
318
319$(obj)/crc64.o: $(obj)/crc64table.h
320
321quiet_cmd_crc64 = GEN     $@
322      cmd_crc64 = $< > $@
323
324$(obj)/crc64table.h: $(obj)/gen_crc64table
325	$(call cmd,crc64)
326
327#
328# Build a fast OID lookip registry from include/linux/oid_registry.h
329#
330obj-$(CONFIG_OID_REGISTRY) += oid_registry.o
331
332$(obj)/oid_registry.o: $(obj)/oid_registry_data.c
333
334$(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \
335			    $(src)/build_OID_registry
336	$(call cmd,build_OID_registry)
337
338quiet_cmd_build_OID_registry = GEN     $@
339      cmd_build_OID_registry = perl $(src)/build_OID_registry $< $@
340
341clean-files	+= oid_registry_data.c
342
343obj-$(CONFIG_UCS2_STRING) += ucs2_string.o
344obj-$(CONFIG_UBSAN) += ubsan.o
345
346UBSAN_SANITIZE_ubsan.o := n
347KASAN_SANITIZE_ubsan.o := n
348KCSAN_SANITIZE_ubsan.o := n
349CFLAGS_ubsan.o := -fno-stack-protector $(DISABLE_STACKLEAK_PLUGIN)
350
351obj-$(CONFIG_SBITMAP) += sbitmap.o
352
353obj-$(CONFIG_PARMAN) += parman.o
354
355obj-y += group_cpus.o
356
357# GCC library routines
358obj-$(CONFIG_GENERIC_LIB_ASHLDI3) += ashldi3.o
359obj-$(CONFIG_GENERIC_LIB_ASHRDI3) += ashrdi3.o
360obj-$(CONFIG_GENERIC_LIB_LSHRDI3) += lshrdi3.o
361obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o
362obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o
363obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o
364obj-$(CONFIG_OBJAGG) += objagg.o
365
366# pldmfw library
367obj-$(CONFIG_PLDMFW) += pldmfw/
368
369# KUnit tests
370CFLAGS_bitfield_kunit.o := $(DISABLE_STRUCTLEAK_PLUGIN)
371obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o
372obj-$(CONFIG_CHECKSUM_KUNIT) += checksum_kunit.o
373obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
374obj-$(CONFIG_HASHTABLE_KUNIT_TEST) += hashtable_test.o
375obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o
376obj-$(CONFIG_BITS_TEST) += test_bits.o
377obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o
378obj-$(CONFIG_SLUB_KUNIT_TEST) += slub_kunit.o
379obj-$(CONFIG_MEMCPY_KUNIT_TEST) += memcpy_kunit.o
380obj-$(CONFIG_IS_SIGNED_TYPE_KUNIT_TEST) += is_signed_type_kunit.o
381CFLAGS_overflow_kunit.o = $(call cc-disable-warning, tautological-constant-out-of-range-compare)
382obj-$(CONFIG_OVERFLOW_KUNIT_TEST) += overflow_kunit.o
383CFLAGS_stackinit_kunit.o += $(call cc-disable-warning, switch-unreachable)
384obj-$(CONFIG_STACKINIT_KUNIT_TEST) += stackinit_kunit.o
385CFLAGS_fortify_kunit.o += $(call cc-disable-warning, unsequenced)
386CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-overread)
387CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-truncation)
388CFLAGS_fortify_kunit.o += $(DISABLE_STRUCTLEAK_PLUGIN)
389obj-$(CONFIG_FORTIFY_KUNIT_TEST) += fortify_kunit.o
390obj-$(CONFIG_SIPHASH_KUNIT_TEST) += siphash_kunit.o
391obj-$(CONFIG_USERCOPY_KUNIT_TEST) += usercopy_kunit.o
392
393obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o
394
395obj-$(CONFIG_FIRMWARE_TABLE) += fw_table.o
396
397subdir-$(CONFIG_FORTIFY_SOURCE) += test_fortify
398