linux-kernel - [PATCH 4.11 089/115] x86/boot: Use CROSS

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Date:   Mon,  5 Jun 2017 18:18:02 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Rob Landley <rob@...dley.net>,
        Kees Cook <keescook@...omium.org>,
        Jiri Kosina <jkosina@...e.cz>, Paul Bolle <pebolle@...cali.nl>,
        "H.J. Lu" <hjl.tools@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 4.11 089/115] x86/boot: Use CROSS_COMPILE prefix for readelf

4.11-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Rob Landley <rob@...dley.net>

commit 3780578761921f094179c6289072a74b2228c602 upstream.

The boot code Makefile contains a straight 'readelf' invocation. This
causes build warnings in cross compile environments, when there is no
unprefixed readelf accessible via $PATH.

Add the missing $(CROSS_COMPILE) prefix.

[ tglx: Rewrote changelog ]

Fixes: 98f78525371b ("x86/boot: Refuse to build with data relocations")
Signed-off-by: Rob Landley <rob@...dley.net>
Acked-by: Kees Cook <keescook@...omium.org>
Cc: Jiri Kosina <jkosina@...e.cz>
Cc: Paul Bolle <pebolle@...cali.nl>
Cc: "H.J. Lu" <hjl.tools@...il.com>
Link: http://lkml.kernel.org/r/ced18878-693a-9576-a024-113ef39a22c0@landley.net
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/x86/boot/compressed/Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -94,7 +94,7 @@ vmlinux-objs-$(CONFIG_EFI_MIXED) += $(ob
 quiet_cmd_check_data_rel = DATAREL $@
 define cmd_check_data_rel
 	for obj in $(filter %.o,$^); do \
-		readelf -S $$obj | grep -qF .rel.local && { \
+		${CROSS_COMPILE}readelf -S $$obj | grep -qF .rel.local && { \
 			echo "error: $$obj has data relocations!" >&2; \
 			exit 1; \
 		} || true; \