Lines Matching +full:performance +full:- +full:affecting

1 # SPDX-License-Identifier: GPL-2.0-only
23 	def_bool $(cc-option, -fsanitize=kernel-address)
26 	def_bool $(cc-option, -fsanitize=kernel-hwaddress)
43 	  Enables KASAN (Kernel Address Sanitizer) - a dynamic memory safety
44 	  error detector designed to find out-of-bounds and use-after-free bugs.
46 	  See Documentation/dev-tools/kasan.rst for details.
53 …def_bool (CC_IS_CLANG && $(cc-option,-fsanitize=kernel-address -mllvm -asan-kernel-mem-intrinsic-p…
54 		 (CC_IS_GCC && $(cc-option,-fsanitize=kernel-address --param asan-kernel-mem-intrinsic-prefix=1))
69 	  2. Software Tag-Based KASAN (arm64 only, based on software memory
72 	  3. Hardware Tag-Based KASAN (arm64 only, based on hardware memory
75 	  See Documentation/dev-tools/kasan.rst for details about each mode.
90 	  The performance slowdown is ~x3.
93 	bool "Software Tag-Based KASAN"
99 	  Enables Software Tag-Based KASAN.
112 	bool "Hardware Tag-Based KASAN"
115 	  Enables Hardware Tag-Based KASAN.
158 	  out-of-bounds bugs in stack variables.
164 	  This option is always disabled when compile-testing with Clang to
171 	  as well, as it adds inline-style instrumentation that is run
183 	  With Hardware Tag-Based KASAN, only non-executable VM_ALLOC mappings
187 	tristate "KUnit-compatible tests of KASAN bug detection capabilities" if !KUNIT_ALL_TESTS
191 	  A KUnit-based KASAN test suite. Triggers different kinds of
192 	  out-of-bounds and use-after-free accesses. Useful for testing whether
196 	  to the KUnit documentation in Documentation/dev-tools/kunit/.
199 	tristate "KUnit-incompatible tests of KASAN bug detection capabilities"
203 	  Incompatible with Hardware Tag-Based KASAN.
217 	  In Generic KASAN, each kmalloc-8 and kmalloc-16 object will add
218 	  16 bytes of additional memory consumption, and each kmalloc-32
220 	  affecting other larger objects.