From: Andrii Nakryiko <andriin@fb.com>
Date: Tue, 21 Apr 2020 18:24:07 -0700
Subject: tools/runqslower: Ensure own vmlinux.h is picked up first
Patch-mainline: v5.7-rc3
Git-commit: dfc55ace9939e1e8703ad37ddbba41aaa31cc0cb
References: bsc#1177028
Reorder include paths to ensure that runqslower sources are picking up
vmlinux.h, generated by runqslower's own Makefile. When runqslower is built
from selftests/bpf, due to current -I$(BPF_INCLUDE) -I$(OUTPUT) ordering, it
might pick up not-yet-complete vmlinux.h, generated by selftests Makefile,
which could lead to compilation errors like [0]. So ensure that -I$(OUTPUT)
goes first and rely on runqslower's Makefile own dependency chain to ensure
vmlinux.h is properly completed before source code relying on it is compiled.
[0] https://travis-ci.org/github/libbpf/libbpf/jobs/677905925
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200422012407.176303-1-andriin@fb.com
Acked-by: Gary Lin <glin@suse.com>
---
tools/bpf/runqslower/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/bpf/runqslower/Makefile
+++ b/tools/bpf/runqslower/Makefile
@@ -8,7 +8,7 @@ BPFTOOL ?= $(DEFAULT_BPFTOOL)
LIBBPF_SRC := $(abspath ../../lib/bpf)
BPFOBJ := $(OUTPUT)/libbpf.a
BPF_INCLUDE := $(OUTPUT)
-INCLUDES := -I$(BPF_INCLUDE) -I$(OUTPUT) -I$(abspath ../../lib)
+INCLUDES := -I$(OUTPUT) -I$(BPF_INCLUDE) -I$(abspath ../../lib)
CFLAGS := -g -Wall
# Try to detect best kernel BTF source