Nick Desaulniers e5d523f1ae ubsan: disable UBSAN_DIV_ZERO for clang ... Building with UBSAN_DIV_ZERO with clang produces numerous fallthrough warnings from objtool. In the case of uncheck division, UBSAN_DIV_ZERO may introduce new control flow to check for division by zero. Because the result of the division is undefined, LLVM may optimize the control flow such that after the call to __ubsan_handle_divrem_overflow doesn't matter. If panic_on_warn was set, __ubsan_handle_divrem_overflow would panic. The problem is is that panic_on_warn is run time configurable. If it's disabled, then we cannot guarantee that we will be able to recover safely. Disable this config for clang until we can come up with a solution in LLVM. Link: https://github.com/ClangBuiltLinux/linux/issues/1657 Link: https://github.com/llvm/llvm-project/issues/56289 Link: https://lore.kernel.org/lkml/CAHk-=wj1qhf7y3VNACEexyp5EbkNpdcu_542k-xZpzmYLOjiCg@mail.gmail.com/ Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2022-07-14 15:45:26 -07:00
..
842
crypto	crypto: memneq - move into lib/	2022-06-12 14:51:51 +08:00
dim	dim: initialize all struct fields	2022-05-09 17:20:37 -07:00
fonts
kunit	kunit: fix executor OOM error handling logic on non-UML	2022-05-17 10:01:40 -06:00
livepatch
lz4	lz4: fix LZ4_decompress_safe_partial read out of bound	2022-04-08 14:20:36 -10:00
lzo
math
mpi
pldmfw
raid6	lib/raid6: Include <asm/ppc-opcode.h> for VPERMXOR	2022-03-08 15:20:21 -08:00
reed_solomon
test_fortify
vdso
xz
zlib_deflate
zlib_dfltcc
zlib_inflate
zstd
.gitignore	bootconfig: Support embedding a bootconfig file in kernel	2022-04-26 17:58:51 -04:00
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
asn1_encoder.c
assoc_array.c	assoc_array: Fix BUG_ON during garbage collect	2022-06-01 18:29:06 -07:00
atomic64.c
atomic64_test.c
audit.c
bcd.c
bch.c
bitfield_kunit.c
bitmap.c	bitmap: Fix return values to be unsigned	2022-06-03 06:52:58 -07:00
bitrev.c
bootconfig-data.S	bootconfig: Support embedding a bootconfig file in kernel	2022-04-26 17:58:51 -04:00
bootconfig.c	bootconfig: Support embedding a bootconfig file in kernel	2022-04-26 17:58:51 -04:00
bsearch.c
btree.c
bucket_locks.c
bug.c	bug: Use normal relative pointers in 'struct bug_entry'	2022-05-19 23:46:10 +02:00
build_OID_registry
buildid.c
bust_spinlocks.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
cmdline_kunit.c
cmpdi2.c
compat_audit.c
cpu_rmap.c
cpumask.c
crc-ccitt.c
crc-itu-t.c	crc-itu-t: fix typo in CRC ITU-T polynomial comment	2022-06-07 10:27:38 +02:00
crc-t10dif.c
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64-rocksoft.c	crypto: add rocksoft 64b crc guard tag framework	2022-03-07 12:48:35 -07:00
crc64.c	lib: add rocksoft model crc64	2022-03-07 12:48:35 -07:00
ctype.c
debug_info.c
debug_locks.c
debugobjects.c	debugobjects: Convert to SPDX license identifier	2022-05-13 12:35:17 +02:00
dec_and_lock.c
decompress.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
decompress_unzstd.c
devmem_is_allowed.c
devres.c
digsig.c
dump_stack.c	printk: rename cpulock functions	2022-04-22 21:30:57 +02:00
dynamic_debug.c
dynamic_queue_limits.c
earlycpio.c
errname.c
error-inject.c
errseq.c
extable.c
fault-inject-usercopy.c
fault-inject.c	mm: fix missing handler for __GFP_NOWARN	2022-05-19 14:08:55 -07:00
fdt.c
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c
find_bit_benchmark.c
flex_proportions.c
gen_crc32table.c
gen_crc64table.c	lib: add rocksoft model crc64	2022-03-07 12:48:35 -07:00
genalloc.c
generic-radix-tree.c
glob.c	lib: remove back_str initialization	2022-04-29 14:38:01 -07:00
globtest.c
hexdump.c	hex2bin: fix access beyond string end	2022-04-27 10:57:33 -07:00
hweight.c
idr.c	ida: don't use BUG_ON() for debugging	2022-07-10 13:55:49 -07:00
inflate.c
interval_tree.c
interval_tree_test.c
iomap.c
iomap_copy.c
iommu-helper.c
iov_iter.c	iov_iter: fix build issue due to possible type mis-match	2022-06-11 10:30:20 -07:00
irq_poll.c	lib/irq_poll: Prevent softirq pending leak in irq_poll_cpu_dead()	2022-04-13 21:32:21 +02:00
irq_regs.c
is_single_threaded.c
kasprintf.c
Kconfig	crypto: memneq - move into lib/	2022-06-12 14:51:51 +08:00
Kconfig.debug	cxl for 5.19	2022-05-27 21:24:19 -07:00
Kconfig.kasan	kasan: clean-up kconfig options descriptions	2022-05-13 07:20:19 -07:00
Kconfig.kcsan	objtool: Make noinstr hacks optional	2022-04-22 12:32:04 +02:00
Kconfig.kfence	kfence: allow use of a deferrable timer	2022-03-22 15:57:11 -07:00
Kconfig.kgdb
Kconfig.ubsan	ubsan: disable UBSAN_DIV_ZERO for clang	2022-07-14 15:45:26 -07:00
kfifo.c
klist.c
kobject.c	kobject: kobj_type: remove default_attrs	2022-04-05 15:39:19 +02:00
kobject_uevent.c
kstrtox.c	lib/kstrtox.c: add "false"/"true" support to kstrtobool()	2022-05-13 07:20:13 -07:00
kstrtox.h
libcrc32c.c
linear_ranges.c
list-test.c	list: test: Test the hlist structure	2022-04-05 13:32:27 -06:00
list_debug.c
list_sort.c
llist.c
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lockref.c	lockref: remove unused 'lockref_get_or_lock()' function	2022-07-03 14:40:28 -07:00
logic_iomem.c	lib/logic_iomem: correct fallback config references	2022-03-11 10:42:56 +01:00
logic_pio.c
lru_cache.c
lshrdi3.c
Makefile	crypto: memneq - move into lib/	2022-06-12 14:51:51 +08:00
memcat_p.c
memcpy_kunit.c
memneq.c	crypto: memneq - move into lib/	2022-06-12 14:51:51 +08:00
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c
nmi_backtrace.c	printk: rename cpulock functions	2022-04-22 21:30:57 +02:00
nodemask.c	nodemask: Fix return values to be unsigned	2022-06-03 06:52:58 -07:00
notifier-error-inject.c
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c
overflow_kunit.c
packing.c
parman.c
parser.c
pci_iomap.c
percpu-refcount.c	percpu_ref_init(): clean ->percpu_count_ref on failure	2022-05-18 02:20:17 -04:00
percpu_counter.c
percpu_test.c
plist.c
pm-notifier-error-inject.c
polynomial.c	lib: add generic polynomial calculation	2022-05-22 11:32:30 -07:00
radix-tree.c
random32.c	random32: use real rng for non-deterministic randomness	2022-05-18 15:53:52 +02:00
ratelimit.c
rbtree.c
rbtree_test.c
ref_tracker.c
refcount.c
rhashtable.c
sbitmap.c	lib/sbitmap: Fix invalid loop in __sbitmap_queue_get_batch()	2022-06-25 10:58:55 -06:00
scatterlist.c
seq_buf.c
sg_pool.c
sg_split.c
sha1.c
show_mem.c
siphash.c	SPDX changes for 5.19-rc1	2022-06-03 10:34:34 -07:00
slub_kunit.c	mm/slub, kunit: Make slub_kunit unaffected by user specified flags	2022-04-06 10:11:48 +02:00
smp_processor_id.c
sort.c	lib/sort: Add priv pointer to swap function	2022-03-17 20:17:18 -07:00
stackdepot.c	lib/stackdepot: allow requesting early initialization dynamically	2022-04-06 10:55:50 +02:00
stackinit_kunit.c	lib: stackinit: Convert to KUnit	2022-03-21 08:13:04 -07:00
stmp_device.c
string.c	lib/string.c: simplify str[c]spn	2022-04-29 14:38:01 -07:00
string_helpers.c	lib/string_helpers: fix not adding strarray to device's resource list	2022-05-12 20:38:36 -07:00
strncpy_from_user.c	lib/strn*,objtool: Enforce user_access_begin() rules	2022-04-19 21:58:47 +02:00
strnlen_user.c	lib/strn*,objtool: Enforce user_access_begin() rules	2022-04-19 21:58:47 +02:00
syscall.c
test-kstrtox.c
test-string_helpers.c
test_bitmap.c	lib/bitmap: add test for bitmap_{from,to}_arr64	2022-06-03 06:52:58 -07:00
test_bitops.c
test_bits.c
test_blackhole_dev.c
test_bpf.c	bpf, tests: Add load store test case for tail call	2022-04-01 00:27:52 +02:00
test_debug_virtual.c
test_firmware.c	test_firmware: fix end of loop test in upload_read_show()	2022-05-19 19:28:37 +02:00
test_fprobe.c	fprobe: Add a selftest for fprobe	2022-03-17 20:17:14 -07:00
test_fpu.c
test_free_pages.c
test_hash.c
test_hexdump.c
test_hmm.c	mm: remove the extra ZONE_DEVICE struct page refcount	2022-03-03 12:47:33 -05:00
test_hmm_uapi.h
test_ida.c
test_kasan.c	kasan: test: Use NULL macros	2022-04-04 14:29:20 -06:00
test_kasan_module.c
test_kmod.c	lib/test: use after free in register_test_dev_kmod()	2022-03-29 15:13:36 -07:00
test_kprobes.c
test_linear_ranges.c
test_list_sort.c
test_lockup.c
test_memcat_p.c
test_meminit.c	lib/test_meminit: optimize do_kmem_cache_rcu_persistent() test	2022-04-29 14:38:00 -07:00
test_min_heap.c
test_module.c
test_objagg.c
test_parman.c
test_printf.c
test_ref_tracker.c
test_rhashtable.c
test_scanf.c
test_siphash.c	siphash: add SPDX tags as sole licensing authority	2022-05-19 18:54:22 +02:00
test_sort.c
test_static_key_base.c
test_static_keys.c
test_string.c	lib/test_string.c: add strspn and strcspn tests	2022-04-29 14:38:00 -07:00
test_strscpy.c
test_sysctl.c	selftests/sysctl: add sysctl macro test	2022-05-03 10:15:07 +02:00
test_ubsan.c
test_user_copy.c
test_uuid.c
test_vmalloc.c
test_xarray.c	XArray: Fix xas_create_range() when multi-order entry present	2022-03-28 19:25:11 -04:00
textsearch.c
timerqueue.c
ts_bm.c
ts_fsm.c
ts_kmp.c
ubsan.c	ubsan: no need to unset panic_on_warn in ubsan_epilogue()	2022-03-23 19:00:35 -07:00
ubsan.h
ucmpdi2.c
ucs2_string.c
usercopy.c
uuid.c
vsprintf.c	random: remove rng_has_arch_random()	2022-06-10 11:29:48 +02:00
win_minmax.c
xarray.c	mm/huge_memory: Fix xarray node memory leak	2022-06-09 16:24:25 -04:00
xxhash.c