$(addprefix -I,$(DTC_INCLUDE)) \
-undef -D__DTS__
+ifeq ($(CONFIG_LTO_CLANG),y)
+# With CONFIG_LTO_CLANG, .o files in modules might be LLVM bitcode, so we
+# need to run LTO to compile them into native code (.lto.o) before further
+# processing.
+mod-prelink-ext := .lto
+endif
+
# Objtool arguments are also needed for modfinal with LTO, so we define
# then here to avoid duplication.
objtool_args = \
$(if $(CONFIG_UNWINDER_ORC),orc generate,check) \
- $(if $(part-of-module), --module,) \
+ $(if $(part-of-module), --module) \
$(if $(CONFIG_FRAME_POINTER),, --no-fp) \
- $(if $(or $(CONFIG_GCOV_KERNEL),$(CONFIG_LTO_CLANG)), \
- --no-unreachable,) \
- $(if $(CONFIG_RETPOLINE), --retpoline,) \
- $(if $(CONFIG_X86_SMAP), --uaccess,) \
- $(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount,)
+ $(if $(CONFIG_GCOV_KERNEL)$(CONFIG_LTO_CLANG), --no-unreachable)\
+ $(if $(CONFIG_RETPOLINE), --retpoline) \
+ $(if $(CONFIG_X86_SMAP), --uaccess) \
+ $(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount)
# Useful for describing the dependency of composite objects
# Usage: