diff options
| author | Kees Cook <keescook@chromium.org> | 2023-02-03 01:07:49 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2023-02-09 02:26:58 +0300 |
| commit | 25b84002afb9dc9a91a7ea67166879c13ad82422 (patch) | |
| tree | 625353fde0768ab43c9b65bc5e294e89756d66fe /lib/Makefile | |
| parent | 48df133578c70185a95a49390d42df1996ddba2a (diff) | |
| download | linux-25b84002afb9dc9a91a7ea67166879c13ad82422.tar.xz | |
arm64: Support Clang UBSAN trap codes for better reporting
When building with CONFIG_UBSAN_TRAP=y on arm64, Clang encodes the UBSAN
check (handler) type in the esr. Extract this and actually report these
traps as coming from the specific UBSAN check that tripped.
Before:
Internal error: BRK handler: 00000000f20003e8 [#1] PREEMPT SMP
After:
Internal error: UBSAN: shift out of bounds: 00000000f2005514 [#1] PREEMPT SMP
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Mukesh Ojha <quic_mojha@quicinc.com>
Reviewed-by: Fangrui Song <maskray@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: John Stultz <jstultz@google.com>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: Yury Norov <yury.norov@gmail.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Marco Elver <elver@google.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: llvm@lists.linux.dev
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'lib/Makefile')
| -rw-r--r-- | lib/Makefile | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/lib/Makefile b/lib/Makefile index 4d9461bfea42..81b988bf9448 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -340,9 +340,7 @@ quiet_cmd_build_OID_registry = GEN $@ clean-files += oid_registry_data.c obj-$(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 |