linux-kernel - [PATCH 03/12] s390: purgatory: pass --target option to clang

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Message-Id: <20190408212648.2407234-3-arnd@arndb.de>
Date:   Mon,  8 Apr 2019 23:26:16 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>
Cc:     clang-built-linux@...glegroups.com,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        linux-s390@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Philipp Rudo <prudo@...ux.ibm.com>,
        Hendrik Brueckner <brueckner@...ux.ibm.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 03/12] s390: purgatory: pass --target option to clang

The purgatory Makefile does not inherit the original cflags,
so clang falls back to the default target architecture when
building it, typically this would be x86 when cross-compiling.

Pass --target=s390x-linux to all compilers that understand
this option.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/s390/purgatory/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index ce6a3f75065b..3a14b968cec3 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -22,6 +22,7 @@ KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
 KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
 KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding
 KBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float -fno-common
+KBUILD_CFLAGS += $(call cc-option,--target=s390x-linux)
 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
 KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS))
 
-- 
2.20.0