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From: Yonghong Song <yhs@fb.com>
To: <bpf@vger.kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>,
	Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>,
	<kernel-team@fb.com>, Nick Desaulniers <ndesaulniers@google.com>,
	Sedat Dilek <sedat.dilek@gmail.com>
Subject: [PATCH bpf-next 1/5] selftests: set CC to clang in lib.mk if LLVM is set
Date: Sat, 10 Apr 2021 09:49:30 -0700	[thread overview]
Message-ID: <20210410164930.769251-1-yhs@fb.com> (raw)
In-Reply-To: <20210410164925.768741-1-yhs@fb.com>

selftests/bpf/Makefile includes lib.mk. With the following command
  make -j60 LLVM=1 LLVM_IAS=1  <=== compile kernel
  make -j60 -C tools/testing/selftests/bpf LLVM=1 LLVM_IAS=1 V=1
some files are still compiled with gcc. This patch
fixed lib.mk issue which sets CC to gcc in all cases.

Cc: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
---
 tools/testing/selftests/lib.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index a5ce26d548e4..9a41d8bb9ff1 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -1,6 +1,10 @@
 # This mimics the top-level Makefile. We do it explicitly here so that this
 # Makefile can operate with or without the kbuild infrastructure.
+ifneq ($(LLVM),)
+CC := clang
+else
 CC := $(CROSS_COMPILE)gcc
+endif
 
 ifeq (0,$(MAKELEVEL))
     ifeq ($(OUTPUT),)
-- 
2.30.2


  reply	other threads:[~2021-04-10 16:49 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-10 16:49 [PATCH bpf-next 0/5] support build selftests/bpf with clang Yonghong Song
2021-04-10 16:49 ` Yonghong Song [this message]
2021-04-11 10:22   ` [PATCH bpf-next 1/5] selftests: set CC to clang in lib.mk if LLVM is set Sedat Dilek
2021-04-11 16:51     ` Yonghong Song
2021-04-11 17:10       ` Sedat Dilek
2021-04-10 16:49 ` [PATCH bpf-next 2/5] tools: allow proper CC/CXX/... override with LLVM=1 in Makefile.include Yonghong Song
2021-04-11 10:24   ` Sedat Dilek
2021-04-11 16:52     ` Yonghong Song
2021-04-10 16:49 ` [PATCH bpf-next 3/5] selftests/bpf: fix test_cpp compilation failure with clang Yonghong Song
2021-04-11 10:47   ` Sedat Dilek
2021-04-11 17:20     ` Yonghong Song
2021-04-11 17:31       ` Sedat Dilek
2021-04-11 19:08         ` Yonghong Song
2021-04-12  4:47           ` Sedat Dilek
2021-04-12  5:42             ` Yonghong Song
2021-04-12  6:06               ` Sedat Dilek
2021-04-12 14:15                 ` Yonghong Song
2021-04-13  4:32   ` Andrii Nakryiko
2021-04-13  6:12     ` Yonghong Song
2021-04-13 17:50       ` Andrii Nakryiko
2021-04-10 16:49 ` [PATCH bpf-next 4/5] selftests/bpf: silence clang compilation warnings Yonghong Song
2021-04-11 11:12   ` Sedat Dilek
2021-04-11 17:40     ` Yonghong Song
2021-04-10 16:49 ` [PATCH bpf-next 5/5] bpftool: fix a clang compilation warning Yonghong Song
2021-04-11 11:05   ` Sedat Dilek
2021-04-11 17:24     ` Yonghong Song
2021-04-10 17:23 ` [PATCH bpf-next 0/5] support build selftests/bpf with clang Alexei Starovoitov
2021-04-10 17:38   ` Yonghong Song
2021-04-10 19:19 ` Sedat Dilek
2021-04-11 16:46   ` Yonghong Song

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