linux-kernel - [PATCH] x86/tools: Explicitly include autoconf.h for hostprogs

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Date:   Thu, 24 Nov 2022 20:14:10 +0800
From:   "Hou Wenlong" <houwenlong.hwl@...group.com>
To:     linux-kernel@...r.kernel.org
Cc:     "Hou Wenlong" <houwenlong.hwl@...group.com>,
        "Thomas Gleixner" <tglx@...utronix.de>,
        "Ingo Molnar" <mingo@...hat.com>, "Borislav Petkov" <bp@...en8.de>,
        "Dave Hansen" <dave.hansen@...ux.intel.com>, <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        "Luis Chamberlain" <mcgrof@...nel.org>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Subject: [PATCH] x86/tools: Explicitly include autoconf.h for hostprogs

The relocs tool needs access to the CONFIG_* symbols found in
include/generated/autoconf.h. However, the header file is not included,
so the #if CONFIG_FW_LOADER code in arch/x86/tool/relocs.c is never
compiled.

Fixes: c8dcf655ec81 ("x86/build: Tuck away built-in firmware under FW_LOADER")
Signed-off-by: Hou Wenlong <houwenlong.hwl@...group.com>
---
 arch/x86/tools/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
index bddfc9a46645..941b24431696 100644
--- a/arch/x86/tools/Makefile
+++ b/arch/x86/tools/Makefile
@@ -38,7 +38,9 @@ $(obj)/insn_decoder_test.o: $(srctree)/tools/arch/x86/lib/insn.c $(srctree)/tool
 
 $(obj)/insn_sanity.o: $(srctree)/tools/arch/x86/lib/insn.c $(srctree)/tools/arch/x86/lib/inat.c $(srctree)/tools/arch/x86/include/asm/inat_types.h $(srctree)/tools/arch/x86/include/asm/inat.h $(srctree)/tools/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
 
-HOST_EXTRACFLAGS += -I$(srctree)/tools/include
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
+		    -include include/generated/autoconf.h
+
 hostprogs	+= relocs
 relocs-objs     := relocs_32.o relocs_64.o relocs_common.o
 PHONY += relocs
-- 
2.31.1