netdev - [PATCH net 5/6] tools: bpftool: unify installation directories

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Date:   Tue, 28 Nov 2017 17:44:32 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     netdev@...r.kernel.org
Cc:     oss-drivers@...ronome.com,
        Quentin Monnet <quentin.monnet@...ronome.com>
Subject: [PATCH net 5/6] tools: bpftool: unify installation directories

From: Quentin Monnet <quentin.monnet@...ronome.com>

Programs and documentation not managed by package manager are generally
installed under /usr/local/, instead of the user's home directory. In
particular, `man` is generally able to find manual pages under
`/usr/local/share/man`.

bpftool generally follows perf's example, and perf installs to home
directory. However bpftool requires root credentials, so it seems
sensible to follow the more common convention of installing files under
/usr/local instead. So, make /usr/local the default prefix for
installing the binary with `make install`, and the documentation with
`make doc-install`. Also, create /usr/local/sbin if it does not exist.

Note that the bash-completion file, however, is still installed under
/usr/share/bash-completion/completions, as the default setup for bash
does not attempt to load completion files under /usr/local/.

Reported-by: David Beckett <david.beckett@...ronome.com>
Signed-off-by: Quentin Monnet <quentin.monnet@...ronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
---
 tools/bpf/bpftool/Documentation/Makefile | 2 +-
 tools/bpf/bpftool/Makefile               | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/bpf/bpftool/Documentation/Makefile b/tools/bpf/bpftool/Documentation/Makefile
index bde77d7c4390..37292bb5ce60 100644
--- a/tools/bpf/bpftool/Documentation/Makefile
+++ b/tools/bpf/bpftool/Documentation/Makefile
@@ -6,7 +6,7 @@ RM ?= rm -f

 # Make the path relative to DESTDIR, not prefix
 ifndef DESTDIR
-prefix?=$(HOME)
+prefix ?= /usr/local
 endif
 mandir ?= $(prefix)/share/man
 man8dir = $(mandir)/man8
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index 813826c50936..c5b21f2cbca5 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -45,8 +45,8 @@ $(LIBBPF): FORCE
 	$(call QUIET_CLEAN, libbpf)
 	$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) clean >/dev/null

-prefix = /usr
-bash_compdir ?= $(prefix)/share/bash-completion/completions
+prefix = /usr/local
+bash_compdir ?= /usr/share/bash-completion/completions

 CC = gcc

@@ -76,6 +76,7 @@ clean: $(LIBBPF)-clean
 	$(Q)rm -rf $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d

 install:
+	install -m 0755 -d $(prefix)/sbin
 	install $(OUTPUT)bpftool $(prefix)/sbin/bpftool
 	install -m 0755 -d $(bash_compdir)
 	install -m 0644 bash-completion/bpftool $(bash_compdir)
-- 
2.14.1