[PATCH 13/22] scripts/mod: disable LTO for empty.c

Sami Tolvanen samitolvanen at google.com
Wed Jun 24 16:31:51 EDT 2020


With CONFIG_LTO_CLANG, clang generates LLVM IR instead of ELF object
files. As empty.o is used for probing target properties, disable LTO
for it to produce an object file instead.

Signed-off-by: Sami Tolvanen <samitolvanen at google.com>
---
 scripts/mod/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
index 296b6a3878b2..b6e3b40c6eeb 100644
--- a/scripts/mod/Makefile
+++ b/scripts/mod/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 OBJECT_FILES_NON_STANDARD := y
+CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO)
 
 hostprogs	:= modpost mk_elfconfig
 always-y	:= $(hostprogs) empty.o
-- 
2.27.0.212.ge8ba1cc988-goog




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