xen: Drop CONFIG_CC_HAS_UBSAN

All supported toolchains now have it.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>

diff --git a/xen/Kconfig b/xen/Kconfig
index 2128f0ccfc0b7d8ba95022cec7288e3c558effff..72fdb8376087853abe7981b04ca4f16376decefe 100644 (file)
--- a/xen/Kconfig
+++ b/xen/Kconfig
@@ -37,10 +37,6 @@ config CC_HAS_VISIBILITY_ATTRIBUTE
 config CC_SPLIT_SECTIONS
        bool
 
-# Compiler supports -fsanitize=undefined
-config CC_HAS_UBSAN
-       def_bool $(cc-option,-fsanitize=undefined)
-
 # Set code alignment.
 #
 # Allow setting on a boolean basis, and then convert such selection to an

diff --git a/xen/Kconfig.debug b/xen/Kconfig.debug
index f7cc5ffaabd75d36b121aac1e614db91c2ce3712..c4a8d86912e09b1038deba982048dcd954eda74e 100644 (file)
--- a/xen/Kconfig.debug
+++ b/xen/Kconfig.debug
@@ -98,7 +98,7 @@ config SCRUB_DEBUG
 
 config UBSAN
        bool "Undefined behaviour sanitizer"
-       depends on HAS_UBSAN && CC_HAS_UBSAN
+       depends on HAS_UBSAN
        help
          Enable undefined behaviour sanitizer. It uses compiler to insert code
          snippets so that undefined behaviours in C are detected during runtime.