e2ae634014
We have a handful of new kernel features for 5.11:
* Support for the contiguous memory allocator.
* Support for IRQ Time Accounting
* Support for stack tracing
* Support for strict /dev/mem
* Support for kernel section protection
I'm being a bit conservative on the cutoff for this round due to the
timing, so this is all the new development I'm going to take for this
cycle (even if some of it probably normally would have been OK). There
are, however, some fixes on the list that I will likely be sending along
either later this week or early next week.
There is one issue in here: one of my test configurations
(PREEMPT{,_DEBUG}=y) fails to boot on QEMU 5.0.0 (from April) as of the
.text.init alignment patch. With any luck we'll sort out the issue, but
given how many bugs get fixed all over the place and how unrelated those
features seem my guess is that we're just running into something that's
been lurking for a while and has already been fixed in the newer QEMU
(though I wouldn't be surprised if it's one of these implicit
assumptions we have in the boot flow). If it was hardware I'd be
strongly inclined to look more closely, but given that users can upgrade
their simulators I'm less worried about it.
There are two merge conflicts, both in build files. They're both a bit
clunky: arch/riscv/Kconfig is out of order (I have a script that's
supposed to keep them in order, I'll fix it) and lib/Makefile is out of
order (though GENERIC_LIB here doesn't mean quite what it does above).
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Merge tag 'riscv-for-linus-5.11-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
"We have a handful of new kernel features for 5.11:
- Support for the contiguous memory allocator.
- Support for IRQ Time Accounting
- Support for stack tracing
- Support for strict /dev/mem
- Support for kernel section protection
I'm being a bit conservative on the cutoff for this round due to the
timing, so this is all the new development I'm going to take for this
cycle (even if some of it probably normally would have been OK). There
are, however, some fixes on the list that I will likely be sending
along either later this week or early next week.
There is one issue in here: one of my test configurations
(PREEMPT{,_DEBUG}=y) fails to boot on QEMU 5.0.0 (from April) as of
the .text.init alignment patch.
With any luck we'll sort out the issue, but given how many bugs get
fixed all over the place and how unrelated those features seem my
guess is that we're just running into something that's been lurking
for a while and has already been fixed in the newer QEMU (though I
wouldn't be surprised if it's one of these implicit assumptions we
have in the boot flow). If it was hardware I'd be strongly inclined to
look more closely, but given that users can upgrade their simulators
I'm less worried about it"
* tag 'riscv-for-linus-5.11-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
arm64: Use the generic devmem_is_allowed()
arm: Use the generic devmem_is_allowed()
RISC-V: Use the new generic devmem_is_allowed()
lib: Add a generic version of devmem_is_allowed()
riscv: Fixed kernel test robot warning
riscv: kernel: Drop unused clean rule
riscv: provide memmove implementation
RISC-V: Move dynamic relocation section under __init
RISC-V: Protect all kernel sections including init early
RISC-V: Align the .init.text section
RISC-V: Initialize SBI early
riscv: Enable ARCH_STACKWALK
riscv: Make stack walk callback consistent with generic code
riscv: Cleanup stacktrace
riscv: Add HAVE_IRQ_TIME_ACCOUNTING
riscv: Enable CMA support
riscv: Ignore Image.* and loader.bin
riscv: Clean up boot dir
riscv: Fix compressed Image formats build
RISC-V: Add kernel image sections to the resource tree
359 lines
12 KiB
Makefile
359 lines
12 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for some libs needed in the kernel.
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#
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ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
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# These files are disabled because they produce lots of non-interesting and/or
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# flaky coverage that is not a function of syscall inputs. For example,
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# rbtree can be global and individual rotations don't correlate with inputs.
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KCOV_INSTRUMENT_string.o := n
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KCOV_INSTRUMENT_rbtree.o := n
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KCOV_INSTRUMENT_list_debug.o := n
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KCOV_INSTRUMENT_debugobjects.o := n
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KCOV_INSTRUMENT_dynamic_debug.o := n
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KCOV_INSTRUMENT_fault-inject.o := n
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# string.o implements standard library functions like memset/memcpy etc.
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# Use -ffreestanding to ensure that the compiler does not try to "optimize"
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# them into calls to themselves.
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CFLAGS_string.o := -ffreestanding
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# Early boot use of cmdline, don't instrument it
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ifdef CONFIG_AMD_MEM_ENCRYPT
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KASAN_SANITIZE_string.o := n
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CFLAGS_string.o += -fno-stack-protector
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endif
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# Used by KCSAN while enabled, avoid recursion.
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KCSAN_SANITIZE_random32.o := n
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lib-y := ctype.o string.o vsprintf.o cmdline.o \
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rbtree.o radix-tree.o timerqueue.o xarray.o \
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idr.o extable.o sha1.o irq_regs.o argv_split.o \
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flex_proportions.o ratelimit.o show_mem.o \
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is_single_threaded.o plist.o decompress.o kobject_uevent.o \
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earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
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nmi_backtrace.o nodemask.o win_minmax.o memcat_p.o
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lib-$(CONFIG_PRINTK) += dump_stack.o
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lib-$(CONFIG_SMP) += cpumask.o
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lib-y += kobject.o klist.o
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obj-y += lockref.o
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obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \
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bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
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list_sort.o uuid.o iov_iter.o clz_ctz.o \
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bsearch.o find_bit.o llist.o memweight.o kfifo.o \
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percpu-refcount.o rhashtable.o \
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once.o refcount.o usercopy.o errseq.o bucket_locks.o \
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generic-radix-tree.o
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obj-$(CONFIG_STRING_SELFTEST) += test_string.o
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obj-y += string_helpers.o
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obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
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obj-y += hexdump.o
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obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
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obj-y += kstrtox.o
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obj-$(CONFIG_FIND_BIT_BENCHMARK) += find_bit_benchmark.o
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obj-$(CONFIG_TEST_BPF) += test_bpf.o
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obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
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obj-$(CONFIG_TEST_BITOPS) += test_bitops.o
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CFLAGS_test_bitops.o += -Werror
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obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o
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obj-$(CONFIG_TEST_HASH) += test_hash.o test_siphash.o
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obj-$(CONFIG_TEST_IDA) += test_ida.o
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obj-$(CONFIG_KASAN_KUNIT_TEST) += test_kasan.o
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CFLAGS_test_kasan.o += -fno-builtin
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CFLAGS_test_kasan.o += $(call cc-disable-warning, vla)
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obj-$(CONFIG_TEST_KASAN_MODULE) += test_kasan_module.o
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CFLAGS_test_kasan_module.o += -fno-builtin
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obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o
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CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla)
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UBSAN_SANITIZE_test_ubsan.o := y
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obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
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obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o
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obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o
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obj-$(CONFIG_TEST_LKM) += test_module.o
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obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o
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obj-$(CONFIG_TEST_OVERFLOW) += test_overflow.o
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obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o
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obj-$(CONFIG_TEST_SORT) += test_sort.o
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obj-$(CONFIG_TEST_USER_COPY) += test_user_copy.o
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obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o
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obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o
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obj-$(CONFIG_TEST_PRINTF) += test_printf.o
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obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o
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obj-$(CONFIG_TEST_STRSCPY) += test_strscpy.o
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obj-$(CONFIG_TEST_UUID) += test_uuid.o
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obj-$(CONFIG_TEST_XARRAY) += test_xarray.o
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obj-$(CONFIG_TEST_PARMAN) += test_parman.o
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obj-$(CONFIG_TEST_KMOD) += test_kmod.o
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obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o
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obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o
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obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o
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CFLAGS_test_stackinit.o += $(call cc-disable-warning, switch-unreachable)
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obj-$(CONFIG_TEST_STACKINIT) += test_stackinit.o
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obj-$(CONFIG_TEST_BLACKHOLE_DEV) += test_blackhole_dev.o
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obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o
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obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o
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obj-$(CONFIG_TEST_HMM) += test_hmm.o
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obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o
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#
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# CFLAGS for compiling floating point code inside the kernel. x86/Makefile turns
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# off the generation of FPU/SSE* instructions for kernel proper but FPU_FLAGS
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# get appended last to CFLAGS and thus override those previous compiler options.
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#
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FPU_CFLAGS := -msse -msse2
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ifdef CONFIG_CC_IS_GCC
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# Stack alignment mismatch, proceed with caution.
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# GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
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# (8B stack alignment).
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# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53383
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#
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# The "-msse" in the first argument is there so that the
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# -mpreferred-stack-boundary=3 build error:
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#
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# -mpreferred-stack-boundary=3 is not between 4 and 12
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#
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# can be triggered. Otherwise gcc doesn't complain.
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FPU_CFLAGS += -mhard-float
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FPU_CFLAGS += $(call cc-option,-msse -mpreferred-stack-boundary=3,-mpreferred-stack-boundary=4)
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endif
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obj-$(CONFIG_TEST_FPU) += test_fpu.o
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CFLAGS_test_fpu.o += $(FPU_CFLAGS)
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obj-$(CONFIG_TEST_LIVEPATCH) += livepatch/
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obj-$(CONFIG_KUNIT) += kunit/
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ifeq ($(CONFIG_DEBUG_KOBJECT),y)
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CFLAGS_kobject.o += -DDEBUG
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CFLAGS_kobject_uevent.o += -DDEBUG
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endif
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obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
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CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
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obj-y += math/ crypto/
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obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
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obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
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obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
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obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
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obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
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lib-y += logic_pio.o
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obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
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obj-$(CONFIG_BTREE) += btree.o
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obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
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obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
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obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
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obj-$(CONFIG_DEBUG_LIST) += list_debug.o
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obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
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obj-$(CONFIG_BITREVERSE) += bitrev.o
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obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o
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obj-$(CONFIG_PACKING) += packing.o
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obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o
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obj-$(CONFIG_CRC16) += crc16.o
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obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o
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obj-$(CONFIG_CRC_ITU_T) += crc-itu-t.o
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obj-$(CONFIG_CRC32) += crc32.o
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obj-$(CONFIG_CRC64) += crc64.o
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obj-$(CONFIG_CRC32_SELFTEST) += crc32test.o
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obj-$(CONFIG_CRC4) += crc4.o
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obj-$(CONFIG_CRC7) += crc7.o
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obj-$(CONFIG_LIBCRC32C) += libcrc32c.o
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obj-$(CONFIG_CRC8) += crc8.o
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obj-$(CONFIG_XXHASH) += xxhash.o
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obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o
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obj-$(CONFIG_842_COMPRESS) += 842/
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obj-$(CONFIG_842_DECOMPRESS) += 842/
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obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
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obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
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obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc/
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obj-$(CONFIG_REED_SOLOMON) += reed_solomon/
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obj-$(CONFIG_BCH) += bch.o
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obj-$(CONFIG_LZO_COMPRESS) += lzo/
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obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
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obj-$(CONFIG_LZ4_COMPRESS) += lz4/
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obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/
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obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/
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obj-$(CONFIG_ZSTD_COMPRESS) += zstd/
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obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd/
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obj-$(CONFIG_XZ_DEC) += xz/
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obj-$(CONFIG_RAID6_PQ) += raid6/
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lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
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lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
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lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
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lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o
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lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
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lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o
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lib-$(CONFIG_DECOMPRESS_ZSTD) += decompress_unzstd.o
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obj-$(CONFIG_TEXTSEARCH) += textsearch.o
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obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
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obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o
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obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o
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obj-$(CONFIG_SMP) += percpu_counter.o
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obj-$(CONFIG_AUDIT_GENERIC) += audit.o
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obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o
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obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o
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obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o
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obj-$(CONFIG_FAULT_INJECTION_USERCOPY) += fault-inject-usercopy.o
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obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o
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obj-$(CONFIG_PM_NOTIFIER_ERROR_INJECT) += pm-notifier-error-inject.o
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obj-$(CONFIG_NETDEV_NOTIFIER_ERROR_INJECT) += netdev-notifier-error-inject.o
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obj-$(CONFIG_MEMORY_NOTIFIER_ERROR_INJECT) += memory-notifier-error-inject.o
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obj-$(CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT) += \
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of-reconfig-notifier-error-inject.o
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obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
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lib-$(CONFIG_GENERIC_BUG) += bug.o
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obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
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obj-$(CONFIG_DYNAMIC_DEBUG_CORE) += dynamic_debug.o
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obj-$(CONFIG_SYMBOLIC_ERRNAME) += errname.o
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obj-$(CONFIG_NLATTR) += nlattr.o
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obj-$(CONFIG_LRU_CACHE) += lru_cache.o
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obj-$(CONFIG_GENERIC_CSUM) += checksum.o
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obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o
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obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o
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obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o
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obj-$(CONFIG_DQL) += dynamic_queue_limits.o
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obj-$(CONFIG_GLOB) += glob.o
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obj-$(CONFIG_GLOB_SELFTEST) += globtest.o
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obj-$(CONFIG_MPILIB) += mpi/
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obj-$(CONFIG_DIMLIB) += dim/
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obj-$(CONFIG_SIGNATURE) += digsig.o
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lib-$(CONFIG_CLZ_TAB) += clz_tab.o
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obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
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obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
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obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o
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obj-$(CONFIG_SG_SPLIT) += sg_split.o
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obj-$(CONFIG_SG_POOL) += sg_pool.o
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obj-$(CONFIG_MEMREGION) += memregion.o
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obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
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obj-$(CONFIG_IRQ_POLL) += irq_poll.o
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# stackdepot.c should not be instrumented or call instrumented functions.
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# Prevent the compiler from calling builtins like memcmp() or bcmp() from this
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# file.
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CFLAGS_stackdepot.o += -fno-builtin
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obj-$(CONFIG_STACKDEPOT) += stackdepot.o
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KASAN_SANITIZE_stackdepot.o := n
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KCOV_INSTRUMENT_stackdepot.o := n
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libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
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fdt_empty_tree.o fdt_addresses.o
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$(foreach file, $(libfdt_files), \
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$(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt))
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lib-$(CONFIG_LIBFDT) += $(libfdt_files)
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lib-$(CONFIG_BOOT_CONFIG) += bootconfig.o
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obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o
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obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o
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obj-$(CONFIG_PERCPU_TEST) += percpu_test.o
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obj-$(CONFIG_ASN1) += asn1_decoder.o
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obj-$(CONFIG_FONT_SUPPORT) += fonts/
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hostprogs := gen_crc32table
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hostprogs += gen_crc64table
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clean-files := crc32table.h
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clean-files += crc64table.h
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$(obj)/crc32.o: $(obj)/crc32table.h
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quiet_cmd_crc32 = GEN $@
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cmd_crc32 = $< > $@
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$(obj)/crc32table.h: $(obj)/gen_crc32table
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$(call cmd,crc32)
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$(obj)/crc64.o: $(obj)/crc64table.h
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quiet_cmd_crc64 = GEN $@
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cmd_crc64 = $< > $@
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$(obj)/crc64table.h: $(obj)/gen_crc64table
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$(call cmd,crc64)
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|
|
|
#
|
|
# Build a fast OID lookip registry from include/linux/oid_registry.h
|
|
#
|
|
obj-$(CONFIG_OID_REGISTRY) += oid_registry.o
|
|
|
|
$(obj)/oid_registry.o: $(obj)/oid_registry_data.c
|
|
|
|
$(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \
|
|
$(src)/build_OID_registry
|
|
$(call cmd,build_OID_registry)
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|
|
|
quiet_cmd_build_OID_registry = GEN $@
|
|
cmd_build_OID_registry = perl $(srctree)/$(src)/build_OID_registry $< $@
|
|
|
|
clean-files += oid_registry_data.c
|
|
|
|
obj-$(CONFIG_UCS2_STRING) += ucs2_string.o
|
|
ifneq ($(CONFIG_UBSAN_TRAP),y)
|
|
obj-$(CONFIG_UBSAN) += ubsan.o
|
|
endif
|
|
|
|
UBSAN_SANITIZE_ubsan.o := n
|
|
KASAN_SANITIZE_ubsan.o := n
|
|
KCSAN_SANITIZE_ubsan.o := n
|
|
CFLAGS_ubsan.o := -fno-stack-protector $(DISABLE_STACKLEAK_PLUGIN)
|
|
|
|
obj-$(CONFIG_SBITMAP) += sbitmap.o
|
|
|
|
obj-$(CONFIG_PARMAN) += parman.o
|
|
|
|
# GCC library routines
|
|
obj-$(CONFIG_GENERIC_LIB_ASHLDI3) += ashldi3.o
|
|
obj-$(CONFIG_GENERIC_LIB_ASHRDI3) += ashrdi3.o
|
|
obj-$(CONFIG_GENERIC_LIB_LSHRDI3) += lshrdi3.o
|
|
obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o
|
|
obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o
|
|
obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o
|
|
obj-$(CONFIG_OBJAGG) += objagg.o
|
|
|
|
# pldmfw library
|
|
obj-$(CONFIG_PLDMFW) += pldmfw/
|
|
|
|
# KUnit tests
|
|
obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o
|
|
obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
|
|
obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o
|
|
obj-$(CONFIG_BITS_TEST) += test_bits.o
|
|
obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o
|
|
|
|
obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o
|