diff options
Diffstat (limited to 'mm/kasan/Makefile')
| -rw-r--r-- | mm/kasan/Makefile | 59 |
1 files changed, 55 insertions, 4 deletions
diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile index 2976a9ee104f..dd93ae8a6beb 100644 --- a/mm/kasan/Makefile +++ b/mm/kasan/Makefile @@ -1,10 +1,61 @@ +# SPDX-License-Identifier: GPL-2.0 KASAN_SANITIZE := n -UBSAN_SANITIZE_kasan.o := n +UBSAN_SANITIZE := n KCOV_INSTRUMENT := n -CFLAGS_REMOVE_kasan.o = -pg +# Disable ftrace to avoid recursion. +CFLAGS_REMOVE_common.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_generic.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_init.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_quarantine.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_report.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_report_generic.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_report_hw_tags.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_report_sw_tags.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_shadow.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_hw_tags.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_sw_tags.o = $(CC_FLAGS_FTRACE) + # Function splitter causes unnecessary splits in __asan_load1/__asan_store1 # see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63533 -CFLAGS_kasan.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector) +CC_FLAGS_KASAN_RUNTIME := $(call cc-option, -fno-conserve-stack) +CC_FLAGS_KASAN_RUNTIME += -fno-stack-protector +# Disable branch tracing to avoid recursion. +CC_FLAGS_KASAN_RUNTIME += -DDISABLE_BRANCH_PROFILING + +CFLAGS_common.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_generic.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_init.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_quarantine.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_report.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_report_generic.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_report_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_report_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_shadow.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME) +CFLAGS_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME) + +CFLAGS_KASAN_TEST := $(CFLAGS_KASAN) +ifndef CONFIG_CC_HAS_KASAN_MEMINTRINSIC_PREFIX +# If compiler instruments memintrinsics by prefixing them with __asan/__hwasan, +# we need to treat them normally (as builtins), otherwise the compiler won't +# recognize them as instrumentable. If it doesn't instrument them, we need to +# pass -fno-builtin, so the compiler doesn't inline them. +CFLAGS_KASAN_TEST += -fno-builtin +endif + +CFLAGS_REMOVE_kasan_test_c.o += $(call cc-option, -Wvla-larger-than=1) +CFLAGS_kasan_test_c.o := $(CFLAGS_KASAN_TEST) +RUSTFLAGS_kasan_test_rust.o := $(RUSTFLAGS_KASAN) + +obj-y := common.o report.o +obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o report_generic.o shadow.o quarantine.o +obj-$(CONFIG_KASAN_HW_TAGS) += hw_tags.o report_hw_tags.o tags.o report_tags.o +obj-$(CONFIG_KASAN_SW_TAGS) += init.o report_sw_tags.o shadow.o sw_tags.o tags.o report_tags.o + +kasan_test-objs := kasan_test_c.o +ifdef CONFIG_RUST + kasan_test-objs += kasan_test_rust.o +endif -obj-y := kasan.o report.o kasan_init.o quarantine.o +obj-$(CONFIG_KASAN_KUNIT_TEST) += kasan_test.o |