netdev - [PATCH bpf-next 3/7] tools: bpf: consistent make bpf

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Message-Id: <6311798d892045a7302d8cfe4d41d145e334e83b.1520545951.git.jbenc@redhat.com>
Date:   Thu,  8 Mar 2018 23:00:37 +0100
From:   Jiri Benc <jbenc@...hat.com>
To:     netdev@...r.kernel.org
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Subject: [PATCH bpf-next 3/7] tools: bpf: consistent make bpf_install

Currently, make bpf_install in tools/ does not respect DESTDIR. Moreover, it
installs to /usr/bin/ unconditionally.

Let it respect DESTDIR and allow prefix to be specified. Also, to be more
consistent with bpftool and with the usual customs, default the prefix to
/usr/local instead of /usr.

Signed-off-by: Jiri Benc <jbenc@...hat.com>
---
 tools/bpf/Makefile | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tools/bpf/Makefile b/tools/bpf/Makefile
index e7b15967492e..c42ca24a072d 100644
--- a/tools/bpf/Makefile
+++ b/tools/bpf/Makefile
@@ -1,12 +1,13 @@
 # SPDX-License-Identifier: GPL-2.0
 include ../scripts/Makefile.include
 
-prefix = /usr
+prefix ?= /usr/local
 
 CC = gcc
 LEX = flex
 YACC = bison
 MAKE = make
+INSTALL ?= install
 
 CFLAGS += -Wall -O2
 CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/include/uapi -I$(srctree)/include
@@ -67,9 +68,10 @@ clean: bpftool_clean
 	       $(OUTPUT)bpf_asm $(OUTPUT)bpf_exp.yacc.* $(OUTPUT)bpf_exp.lex.*
 
 install: bpftool_install
-	install $(OUTPUT)bpf_jit_disasm $(prefix)/bin/bpf_jit_disasm
-	install $(OUTPUT)bpf_dbg $(prefix)/bin/bpf_dbg
-	install $(OUTPUT)bpf_asm $(prefix)/bin/bpf_asm
+	$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin
+	$(INSTALL) $(OUTPUT)bpf_jit_disasm $(DESTDIR)$(prefix)/bin/bpf_jit_disasm
+	$(INSTALL) $(OUTPUT)bpf_dbg $(DESTDIR)$(prefix)/bin/bpf_dbg
+	$(INSTALL) $(OUTPUT)bpf_asm $(DESTDIR)$(prefix)/bin/bpf_asm
 
 bpftool:
 	$(MAKE) -C bpftool
-- 
1.8.3.1