netdev - [PATCH bpf-next v4 12/12] bpftool: add install-bin target to install binary only

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Date:   Thu,  7 Oct 2021 20:44:38 +0100
From:   Quentin Monnet <quentin@...valent.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        Quentin Monnet <quentin@...valent.com>
Subject: [PATCH bpf-next v4 12/12] bpftool: add install-bin target to install binary only

With "make install", bpftool installs its binary and its bash completion
file. Usually, this is what we want. But a few components in the kernel
repository (namely, BPF iterators and selftests) also install bpftool
locally before using it. In such a case, bash completion is not
necessary and is just a useless build artifact.

Let's add an "install-bin" target to bpftool, to offer a way to install
the binary only.

Signed-off-by: Quentin Monnet <quentin@...valent.com>
---
 kernel/bpf/preload/iterators/Makefile | 2 +-
 tools/bpf/bpftool/Makefile            | 6 ++++--
 tools/testing/selftests/bpf/Makefile  | 2 +-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/kernel/bpf/preload/iterators/Makefile b/kernel/bpf/preload/iterators/Makefile
index ec39ccc71b8e..616a7ec0232c 100644
--- a/kernel/bpf/preload/iterators/Makefile
+++ b/kernel/bpf/preload/iterators/Makefile
@@ -67,4 +67,4 @@ $(DEFAULT_BPFTOOL): $(BPFOBJ) | $(BPFTOOL_OUTPUT)
 		    OUTPUT=$(BPFTOOL_OUTPUT)/				       \
 		    LIBBPF_OUTPUT=$(LIBBPF_OUTPUT)/			       \
 		    LIBBPF_DESTDIR=$(LIBBPF_DESTDIR)/			       \
-		    prefix= DESTDIR=$(abs_out)/ install
+		    prefix= DESTDIR=$(abs_out)/ install-bin
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index ba02d71c39ef..9c2d13c513f0 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -226,10 +226,12 @@ clean: $(LIBBPF)-clean $(LIBBPF_BOOTSTRAP)-clean feature-detect-clean
 	$(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpftool
 	$(Q)$(RM) -r -- $(OUTPUT)feature/
 
-install: $(OUTPUT)bpftool
+install-bin: $(OUTPUT)bpftool
 	$(call QUIET_INSTALL, bpftool)
 	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/sbin
 	$(Q)$(INSTALL) $(OUTPUT)bpftool $(DESTDIR)$(prefix)/sbin/bpftool
+
+install: install-bin
 	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(bash_compdir)
 	$(Q)$(INSTALL) -m 0644 bash-completion/bpftool $(DESTDIR)$(bash_compdir)
 
@@ -256,6 +258,6 @@ zdep:
 	@if [ "$(feature-zlib)" != "1" ]; then echo "No zlib found"; exit 1 ; fi
 
 .SECONDARY:
-.PHONY: all FORCE clean install uninstall zdep
+.PHONY: all FORCE clean install-bin install uninstall zdep
 .PHONY: doc doc-clean doc-install doc-uninstall
 .DEFAULT_GOAL := all
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index e023d734f7b0..498222543c37 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -216,7 +216,7 @@ $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
 		    OUTPUT=$(HOST_BUILD_DIR)/bpftool/			       \
 		    LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/		       \
 		    LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/			       \
-		    prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install
+		    prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin
 
 all: docs
 
-- 
2.30.2