From: Andrey Ignatov <rdna@fb.com>
Date: Fri, 24 Jan 2020 14:41:42 -0800
Subject: tools/bpf: Allow overriding llvm tools for runqslower
Patch-mainline: v5.6-rc1
Git-commit: 07fdbee134b3530ef30c709aa4251ca04ea9e3f8
References: bsc#1177028

tools/testing/selftests/bpf/Makefile supports overriding clang, llc and
other tools so that custom ones can be used instead of those from PATH.
It's convinient and heavily used by some users.

Apply same rules to runqslower/Makefile.

Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200124224142.1833678-1-rdna@fb.com
Acked-by: Gary Lin <glin@suse.com>
---
 tools/bpf/runqslower/Makefile |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/tools/bpf/runqslower/Makefile
+++ b/tools/bpf/runqslower/Makefile
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
 OUTPUT := .output
-CLANG := clang
-LLC := llc
-LLVM_STRIP := llvm-strip
+CLANG ?= clang
+LLC ?= llc
+LLVM_STRIP ?= llvm-strip
 DEFAULT_BPFTOOL := $(OUTPUT)/sbin/bpftool
 BPFTOOL ?= $(DEFAULT_BPFTOOL)
 LIBBPF_SRC := $(abspath ../../lib/bpf)