linux-kernel - [PATCH 4/4] objtool: Specify host-arch for making LIBSUBCMD

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Date:   Tue, 31 May 2022 10:07:44 +0800
From:   Chen Zhongjin <chenzhongjin@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-arch@...r.kernel.org>,
        <x86@...nel.org>
CC:     <jpoimboe@...hat.com>, <peterz@...radead.org>,
        <madvenka@...ux.microsoft.com>, <tglx@...utronix.de>,
        <mingo@...hat.com>, <bp@...en8.de>, <hpa@...or.com>,
        <arnd@...db.de>, <akpm@...ux-foundation.org>,
        <andreyknvl@...il.com>, <wangkefeng.wang@...wei.com>,
        <andrealmeid@...labora.com>, <mhiramat@...nel.org>,
        <mcgrof@...nel.org>, <christophe.leroy@...roup.eu>,
        <dmitry.torokhov@...il.com>, <yangtiezhu@...ngson.cn>,
        <dave.hansen@...ux.intel.com>
Subject: [PATCH 4/4] objtool: Specify host-arch for making LIBSUBCMD

When singly cross-compiling objtool, LIBSUBCMD MAKE uses target-arch and
failed to LD with other object files.

Explicitly specify host-arch for LIBSUBCMD so it can be correctly
cross-compiled.

Signed-off-by: Chen Zhongjin <chenzhongjin@...wei.com>
---
 tools/objtool/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index e66d717c245d..2b97720ab608 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -58,7 +58,7 @@ $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
 
 
 $(LIBSUBCMD): fixdep FORCE
-	$(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
+	$(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT) AR=$(AR) CC=$(CC) LD=$(LD)
 
 clean:
 	$(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
-- 
2.17.1