Thread (20 messages) flat view 20 messages, 3 authors, 2019-10-11
STALE2531d REVIEWED: 1 (0M)

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[PATCH v4 bpf-next 03/15] samples/bpf: use --target from cross-compile

From: Ivan Khoronzhuk <hidden>
Date: 2019-10-09 20:41:50
Also in: bpf, lkml
Subsystem: bpf [general] (safe dynamic programs and tools), the rest · Maintainers: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds

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.

Acked-by: Andrii Nakryiko <redacted>
Signed-off-by: Ivan Khoronzhuk <redacted>
---
 samples/bpf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 045fa43842e6..9c8c9872004d 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -195,7 +195,7 @@ 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
-- 
2.17.1
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