docs: document new --param=asan-kernel-mem-intrinsic-prefix

gcc/ChangeLog:

	* doc/invoke.texi: Document --param=asan-kernel-mem-intrinsic-prefix.

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 26de582e41efe1678e9aeb2f6adf88a411044697..0a43720f6143c0c7822bd3a4478922c4796e7939 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -15809,6 +15809,10 @@ is greater or equal to this number, use callbacks instead of inline checks.
 E.g. to disable inline code use
 @option{--param asan-instrumentation-with-call-threshold=0}.
 
+@item asan-kernel-mem-intrinsic-prefix
+Prefix calls to memcpy, memset and memmove with __asan_ or __hwasan_
+for -fsanitize=kernel-address or -fsanitize=kernel-hwaddress.
+
 @item hwasan-instrument-stack
 Enable hwasan instrumentation of statically sized stack-allocated variables.
 This kind of instrumentation is enabled by default when using