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hc
2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c 
 kernel/lib/Makefile
....@@ -3,10 +3,7 @@
33 # Makefile for some libs needed in the kernel.
44 #
55 
6
-ifdef CONFIG_FUNCTION_TRACER
7
-ORIG_CFLAGS := $(KBUILD_CFLAGS)
8
-KBUILD_CFLAGS = $(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS))
9
-endif
6
+ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
107 
118 # These files are disabled because they produce lots of non-interesting and/or
129 # flaky coverage that is not a function of syscall inputs. For example,
....@@ -16,40 +13,44 @@
1613 KCOV_INSTRUMENT_list_debug.o := n
1714 KCOV_INSTRUMENT_debugobjects.o := n
1815 KCOV_INSTRUMENT_dynamic_debug.o := n
16
+KCOV_INSTRUMENT_fault-inject.o := n
17
+
18
+# string.o implements standard library functions like memset/memcpy etc.
19
+# Use -ffreestanding to ensure that the compiler does not try to "optimize"
20
+# them into calls to themselves.
21
+CFLAGS_string.o := -ffreestanding
1922 
2023 # Early boot use of cmdline, don't instrument it
2124 ifdef CONFIG_AMD_MEM_ENCRYPT
2225 KASAN_SANITIZE_string.o := n
2326 
24
-ifdef CONFIG_FUNCTION_TRACER
25
-CFLAGS_REMOVE_string.o = -pg
27
+CFLAGS_string.o += -fno-stack-protector
2628 endif
2729 
28
-CFLAGS_string.o := $(call cc-option, -fno-stack-protector)
29
-endif
30
+# Used by KCSAN while enabled, avoid recursion.
31
+KCSAN_SANITIZE_random32.o := n
3032 
3133 lib-y := ctype.o string.o vsprintf.o cmdline.o \
32
-	 rbtree.o radix-tree.o timerqueue.o\
33
-	 idr.o int_sqrt.o extable.o \
34
-	 sha1.o irq_regs.o argv_split.o \
34
+	 rbtree.o radix-tree.o timerqueue.o xarray.o \
35
+	 idr.o extable.o sha1.o irq_regs.o argv_split.o \
3536 	 flex_proportions.o ratelimit.o show_mem.o \
3637 	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
3738 	 earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
38
-	 nmi_backtrace.o nodemask.o win_minmax.o
39
+	 nmi_backtrace.o nodemask.o win_minmax.o memcat_p.o
3940 
4041 lib-$(CONFIG_PRINTK) += dump_stack.o
41
-lib-$(CONFIG_MMU) += ioremap.o
4242 lib-$(CONFIG_SMP) += cpumask.o
4343 
4444 lib-y	+= kobject.o klist.o
4545 obj-y	+= lockref.o
4646 
47
-obj-y += bcd.o div64.o sort.o parser.o debug_locks.o random32.o \
47
+obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \
4848 	 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
49
-	 gcd.o lcm.o list_sort.o uuid.o flex_array.o iov_iter.o clz_ctz.o \
49
+	 list_sort.o uuid.o iov_iter.o clz_ctz.o \
5050 	 bsearch.o find_bit.o llist.o memweight.o kfifo.o \
51
-	 percpu-refcount.o rhashtable.o reciprocal_div.o \
52
-	 once.o refcount.o usercopy.o errseq.o bucket_locks.o
51
+	 percpu-refcount.o rhashtable.o \
52
+	 once.o refcount.o usercopy.o errseq.o bucket_locks.o \
53
+	 generic-radix-tree.o
5354 obj-$(CONFIG_STRING_SELFTEST) += test_string.o
5455 obj-y += string_helpers.o
5556 obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
....@@ -59,16 +60,24 @@
5960 obj-$(CONFIG_FIND_BIT_BENCHMARK) += find_bit_benchmark.o
6061 obj-$(CONFIG_TEST_BPF) += test_bpf.o
6162 obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
63
+obj-$(CONFIG_TEST_BITOPS) += test_bitops.o
64
+CFLAGS_test_bitops.o += -Werror
6265 obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o
6366 obj-$(CONFIG_TEST_HASH) += test_hash.o test_siphash.o
6467 obj-$(CONFIG_TEST_IDA) += test_ida.o
65
-obj-$(CONFIG_TEST_KASAN) += test_kasan.o
68
+obj-$(CONFIG_KASAN_KUNIT_TEST) += test_kasan.o
6669 CFLAGS_test_kasan.o += -fno-builtin
70
+CFLAGS_test_kasan.o += $(call cc-disable-warning, vla)
71
+obj-$(CONFIG_KASAN_MODULE_TEST) += test_kasan_module.o
72
+CFLAGS_test_kasan_module.o += -fno-builtin
6773 obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o
74
+CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla)
6875 UBSAN_SANITIZE_test_ubsan.o := y
6976 obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
7077 obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o
78
+obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o
7179 obj-$(CONFIG_TEST_LKM) += test_module.o
80
+obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o
7281 obj-$(CONFIG_TEST_OVERFLOW) += test_overflow.o
7382 obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o
7483 obj-$(CONFIG_TEST_SORT) += test_sort.o
....@@ -77,8 +86,9 @@
7786 obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o
7887 obj-$(CONFIG_TEST_PRINTF) += test_printf.o
7988 obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o
80
-obj-$(CONFIG_TEST_BITFIELD) += test_bitfield.o
89
+obj-$(CONFIG_TEST_STRSCPY) += test_strscpy.o
8190 obj-$(CONFIG_TEST_UUID) += test_uuid.o
91
+obj-$(CONFIG_TEST_XARRAY) += test_xarray.o
8292 obj-$(CONFIG_TEST_PARMAN) += test_parman.o
8393 obj-$(CONFIG_TEST_KMOD) += test_kmod.o
8494 obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o
....@@ -86,7 +96,40 @@
8696 obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o
8797 CFLAGS_test_stackinit.o += $(call cc-disable-warning, switch-unreachable)
8898 obj-$(CONFIG_TEST_STACKINIT) += test_stackinit.o
99
+obj-$(CONFIG_TEST_BLACKHOLE_DEV) += test_blackhole_dev.o
89100 obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o
101
+obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o
102
+obj-$(CONFIG_TEST_HMM) += test_hmm.o
103
+obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o
104
+
105
+#
106
+# CFLAGS for compiling floating point code inside the kernel. x86/Makefile turns
107
+# off the generation of FPU/SSE* instructions for kernel proper but FPU_FLAGS
108
+# get appended last to CFLAGS and thus override those previous compiler options.
109
+#
110
+FPU_CFLAGS := -msse -msse2
111
+ifdef CONFIG_CC_IS_GCC
112
+# Stack alignment mismatch, proceed with caution.
113
+# GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
114
+# (8B stack alignment).
115
+# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53383
116
+#
117
+# The "-msse" in the first argument is there so that the
118
+# -mpreferred-stack-boundary=3 build error:
119
+#
120
+#  -mpreferred-stack-boundary=3 is not between 4 and 12
121
+#
122
+# can be triggered. Otherwise gcc doesn't complain.
123
+FPU_CFLAGS += -mhard-float
124
+FPU_CFLAGS += $(call cc-option,-msse -mpreferred-stack-boundary=3,-mpreferred-stack-boundary=4)
125
+endif
126
+
127
+obj-$(CONFIG_TEST_FPU) += test_fpu.o
128
+CFLAGS_test_fpu.o += $(FPU_CFLAGS)
129
+
130
+obj-$(CONFIG_TEST_LIVEPATCH) += livepatch/
131
+
132
+obj-$(CONFIG_KUNIT) += kunit/
90133 
91134 ifeq ($(CONFIG_DEBUG_KOBJECT),y)
92135 CFLAGS_kobject.o += -DDEBUG
....@@ -96,7 +139,7 @@
96139 obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
97140 CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
98141 
99
-obj-y += crypto/
142
+obj-y += math/ crypto/
100143 
101144 obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
102145 obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
....@@ -104,7 +147,7 @@
104147 obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
105148 obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
106149 
107
-obj-y += logic_pio.o
150
+lib-y += logic_pio.o
108151 
109152 obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
110153 
....@@ -116,7 +159,8 @@
116159 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
117160 
118161 obj-$(CONFIG_BITREVERSE) += bitrev.o
119
-obj-$(CONFIG_RATIONAL)	+= rational.o
162
+obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o
163
+obj-$(CONFIG_PACKING)	+= packing.o
120164 obj-$(CONFIG_CRC_CCITT)	+= crc-ccitt.o
121165 obj-$(CONFIG_CRC16)	+= crc16.o
122166 obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o
....@@ -135,6 +179,7 @@
135179 obj-$(CONFIG_842_DECOMPRESS) += 842/
136180 obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
137181 obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
182
+obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc/
138183 obj-$(CONFIG_REED_SOLOMON) += reed_solomon/
139184 obj-$(CONFIG_BCH) += bch.o
140185 obj-$(CONFIG_LZO_COMPRESS) += lzo/
....@@ -153,6 +198,7 @@
153198 lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o
154199 lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
155200 lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o
201
+lib-$(CONFIG_DECOMPRESS_ZSTD) += decompress_unzstd.o
156202 
157203 obj-$(CONFIG_TEXTSEARCH) += textsearch.o
158204 obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
....@@ -164,6 +210,7 @@
164210 
165211 obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o
166212 obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o
213
+obj-$(CONFIG_FAULT_INJECTION_USERCOPY) += fault-inject-usercopy.o
167214 obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o
168215 obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o
169216 obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o
....@@ -176,7 +223,8 @@
176223 
177224 obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
178225 
179
-obj-$(CONFIG_DYNAMIC_DEBUG) += dynamic_debug.o
226
+obj-$(CONFIG_DYNAMIC_DEBUG_CORE) += dynamic_debug.o
227
+obj-$(CONFIG_SYMBOLIC_ERRNAME) += errname.o
180228 
181229 obj-$(CONFIG_NLATTR) += nlattr.o
182230 
....@@ -190,19 +238,17 @@
190238 
191239 obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o
192240 
193
-obj-$(CONFIG_CORDIC) += cordic.o
194
-
195241 obj-$(CONFIG_DQL) += dynamic_queue_limits.o
196242 
197243 obj-$(CONFIG_GLOB) += glob.o
198244 obj-$(CONFIG_GLOB_SELFTEST) += globtest.o
199245 
200246 obj-$(CONFIG_MPILIB) += mpi/
247
+obj-$(CONFIG_DIMLIB) += dim/
201248 obj-$(CONFIG_SIGNATURE) += digsig.o
202249 
203250 lib-$(CONFIG_CLZ_TAB) += clz_tab.o
204
-
205
-obj-$(CONFIG_DDR) += jedec_ddr_data.o
251
+lib-$(CONFIG_LIB_MEMNEQ) += memneq.o
206252 
207253 obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
208254 obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
....@@ -211,18 +257,25 @@
211257 
212258 obj-$(CONFIG_SG_SPLIT) += sg_split.o
213259 obj-$(CONFIG_SG_POOL) += sg_pool.o
260
+obj-$(CONFIG_MEMREGION) += memregion.o
214261 obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
215262 obj-$(CONFIG_IRQ_POLL) += irq_poll.o
216263 
264
+# stackdepot.c should not be instrumented or call instrumented functions.
265
+# Prevent the compiler from calling builtins like memcmp() or bcmp() from this
266
+# file.
267
+CFLAGS_stackdepot.o += -fno-builtin
217268 obj-$(CONFIG_STACKDEPOT) += stackdepot.o
218269 KASAN_SANITIZE_stackdepot.o := n
219270 KCOV_INSTRUMENT_stackdepot.o := n
220271 
221272 libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
222
-	       fdt_empty_tree.o
273
+	       fdt_empty_tree.o fdt_addresses.o
223274 $(foreach file, $(libfdt_files), \
224
-	$(eval CFLAGS_$(file) = -I$(src)/../scripts/dtc/libfdt))
275
+	$(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt))
225276 lib-$(CONFIG_LIBFDT) += $(libfdt_files)
277
+
278
+obj-$(CONFIG_BOOT_CONFIG) += bootconfig.o
226279 
227280 obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o
228281 obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o
....@@ -233,10 +286,8 @@
233286 
234287 obj-$(CONFIG_FONT_SUPPORT) += fonts/
235288 
236
-obj-$(CONFIG_PRIME_NUMBERS) += prime_numbers.o
237
-
238
-hostprogs-y	:= gen_crc32table
239
-hostprogs-y	+= gen_crc64table
289
+hostprogs	:= gen_crc32table
290
+hostprogs	+= gen_crc64table
240291 clean-files	:= crc32table.h
241292 clean-files	+= crc64table.h
242293 
....@@ -273,11 +324,14 @@
273324 clean-files	+= oid_registry_data.c
274325 
275326 obj-$(CONFIG_UCS2_STRING) += ucs2_string.o
327
+ifneq ($(CONFIG_UBSAN_TRAP),y)
276328 obj-$(CONFIG_UBSAN) += ubsan.o
329
+endif
277330 
278331 UBSAN_SANITIZE_ubsan.o := n
279332 KASAN_SANITIZE_ubsan.o := n
280
-CFLAGS_ubsan.o := $(call cc-option, -fno-stack-protector) $(DISABLE_STACKLEAK_PLUGIN)
333
+KCSAN_SANITIZE_ubsan.o := n
334
+CFLAGS_ubsan.o := -fno-stack-protector $(DISABLE_STACKLEAK_PLUGIN)
281335 
282336 obj-$(CONFIG_SBITMAP) += sbitmap.o
283337 
....@@ -290,3 +344,13 @@
290344 obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o
291345 obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o
292346 obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o
347
+obj-$(CONFIG_OBJAGG) += objagg.o
348
+
349
+# pldmfw library
350
+obj-$(CONFIG_PLDMFW) += pldmfw/
351
+
352
+# KUnit tests
353
+obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o
354
+obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
355
+obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o
356
+obj-$(CONFIG_BITS_TEST) += test_bits.o