diff options
Diffstat (limited to 'lib/Kconfig.kasan')
| -rw-r--r-- | lib/Kconfig.kasan | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index bd38aab05929..0e6dc4f85f51 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -17,6 +17,8 @@ config KASAN This feature consumes about 1/8 of available memory and brings about ~x3 performance slowdown. For better error detection enable CONFIG_STACKTRACE. + See KASAN_SANITIZE_ALL for selectively compiling files and directories + with this compiler feature enabled. Currently CONFIG_KASAN doesn't work with CONFIG_DEBUG_SLAB (the resulting kernel does not boot). @@ -45,6 +47,22 @@ config KASAN_INLINE endchoice +config KASAN_SANITIZE_ALL + bool "KASan: Enable Instrumentation for entire kernel" + depends on KASAN + default y + help + Enable compilation with $(CFLAGS_KASAN) by default. + KASAN_SANITIZE := n - exclude all files in a directory + KASAN_SANITIZE_file_name.o := n - exclude a single file + Setting KASAN_SANITIZE_ALL to 'n' allows enabling kasan in + only certain files or directories. + KASAN_SANITIZE := y - include all files in a directory + KASAN_SANITIZE_file_name.o := y - include single file + + KASAN_SANITIZE does not affect subdirectories. + KASAN_SANITIZE_file_name.o has priority over KASAN_SANITIZE. + config TEST_KASAN tristate "Module for testing kasan for bug detection" depends on m && KASAN |