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-rw-r--r--lib/Kconfig.debug11
-rw-r--r--scripts/Makefile.lib1
2 files changed, 12 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 35796c290ca3..a9709a6db30f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -545,6 +545,17 @@ config FRAME_POINTER
config OBJTOOL
bool
+config OBJTOOL_WERROR
+ bool "Upgrade objtool warnings to errors"
+ depends on OBJTOOL && !COMPILE_TEST
+ help
+ Fail the build on objtool warnings.
+
+ Objtool warnings can indicate kernel instability, including boot
+ failures. This option is highly recommended.
+
+ If unsure, say Y.
+
config STACK_VALIDATION
bool "Compile-time stack metadata validation"
depends on HAVE_STACK_VALIDATION && UNWINDER_FRAME_POINTER
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index cad20f0e66ee..99e281966ba3 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -277,6 +277,7 @@ objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call
objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess
objtool-args-$(CONFIG_GCOV_KERNEL) += --no-unreachable
objtool-args-$(CONFIG_PREFIX_SYMBOLS) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES)
+objtool-args-$(CONFIG_OBJTOOL_WERROR) += --Werror --backtrace
objtool-args = $(objtool-args-y) \
$(if $(delay-objtool), --link) \