From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Date: Fri, 11 Oct 2019 03:27:56 +0300
Subject: samples/bpf: Use --target from cross-compile
Patch-mainline: v5.5-rc1
Git-commit: 518c13401e16eae1d83d6e459daf6e776a97eba9
References: bsc#1177028

For cross compiling the target triple can be inherited from
cross-compile prefix as it's done in CLANG_FLAGS from kernel makefile.
So copy-paste this decision from kernel Makefile.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191011002808.28206-4-ivan.khoronzhuk@linaro.org
Acked-by: Gary Lin <glin@suse.com>
---
 samples/bpf/Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -196,7 +196,7 @@ BTF_PAHOLE ?= pahole
 # Detect that we're cross compiling and use the cross compiler
 ifdef CROSS_COMPILE
 HOSTCC = $(CROSS_COMPILE)gcc
-CLANG_ARCH_ARGS = -target $(ARCH)
+CLANG_ARCH_ARGS = --target=$(notdir $(CROSS_COMPILE:%-=%))
 endif
 
 # Don't evaluate probes and warnings if we need to run make recursively