Lines Matching +full:kernel +full:- +full:parameters

1 # SPDX-License-Identifier: GPL-2.0
9 CFLAGS_KASAN_NOSANITIZE := -fno-builtin
14 cc-param = $(call cc-option, -mllvm -$(1), $(call cc-option, --param $(1)))
15 rustc-param = $(call rustc-option, -Cllvm-args=-$(1),)
17 check-args = $(foreach arg,$(2),$(call $(1),$(arg)))
33 	# kernel functions to be instrumented inline.
39 # First, enable -fsanitize=kernel-address together with providing the shadow
40 # mapping offset, as for GCC, -fasan-shadow-offset fails without -fsanitize
41 # (GCC accepts the shadow mapping offset via -fasan-shadow-offset instead of
42 # a --param like the other KASAN parameters).
43 # Instead of ifdef-checking the compiler, rely on cc-option.
44 CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \
45 		-fasan-shadow-offset=$(KASAN_SHADOW_OFFSET), \
46 		$(call cc-option, -fsanitize=kernel-address \
47 		-mllvm -asan-mapping-offset=$(KASAN_SHADOW_OFFSET)))
50 # version late enough that we can assume support for -asan-mapping-offset.
51 RUSTFLAGS_KASAN := -Zsanitizer=kernel-address \
52 		   -Zsanitizer-recover=kernel-address \
53 		   -Cllvm-args=-asan-mapping-offset=$(KASAN_SHADOW_OFFSET)
55 # Now, add other parameters enabled similarly in GCC, Clang, and rustc.
57 # through `cc-param` or `rust-param` as applicable.
58 kasan_params += asan-instrumentation-with-call-threshold=$(call_threshold) \
59 		asan-stack=$(stack_enable) \
60 		asan-instrument-allocas=1 \
61 		asan-globals=1
64 # instead. With compilers that don't support this option, compiler-inserted
66 kasan_params += asan-kernel-mem-intrinsic-prefix=1
72 CFLAGS_KASAN := -fsanitize=kernel-hwaddress
76 RUSTFLAGS_KASAN := -Zsanitizer=kernel-hwaddress \
77 		   -Zsanitizer-recover=kernel-hwaddress
80 	kasan_params += hwasan-mapping-offset=$(KASAN_SHADOW_OFFSET)
82 	kasan_params += hwasan-instrument-with-calls=1
85 kasan_params += hwasan-instrument-stack=$(stack_enable) \
86 		hwasan-use-short-granules=0 \
87 		hwasan-inline-all-checks=0
92 		kasan_params += asan-kernel-mem-intrinsic-prefix=1
94 		kasan_params += hwasan-kernel-mem-intrinsic-prefix=1
100 # Add all as-supported KASAN LLVM parameters requested by the configuration.
101 CFLAGS_KASAN += $(call check-args, cc-param, $(kasan_params))
104 	# Avoid calling `rustc-param` unless Rust is enabled.
105 	RUSTFLAGS_KASAN += $(call check-args, rustc-param, $(kasan_params))