[PATCH v2 06/14] perf build: Install libtraceevent locally when building

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The perf build currently has a '-Itools/lib' on the CC command
line. This causes issues as the libapi, libsubcmd, libtraceevent,
libbpf headers are all found via this path, making it impossible to
override include behavior. Change the libtraceevent build mirroring
the libbpf, libsubcmd, libapi and libperf build, so that it is
installed in a directory along with its headers. A later change will
modify the include behavior.

Similarly, the plugins are now installed into libtraceevent_plugins
except they have no header files.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 tools/perf/.gitignore    |  3 ++-
 tools/perf/Makefile.perf | 57 ++++++++++++++++++++++++++--------------
 2 files changed, 40 insertions(+), 20 deletions(-)

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 43f6621ef05e..65b995159cf1 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -42,6 +42,7 @@ libapi/
 libbpf/
 libperf/
 libsubcmd/
+libtraceevent/
+libtraceevent_plugins/
 fixdep
-libtraceevent-dynamic-list
 Documentation/doc.dep
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 57aec5a97270..6e5e3f7730b5 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -242,7 +242,8 @@ sub-make: fixdep
 else # force_fixdep
 
 LIBAPI_DIR      = $(srctree)/tools/lib/api/
-TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
+LIBTRACEEVENT_DIR = $(srctree)/tools/lib/traceevent/
+LIBTRACEEVENT_PLUGINS_DIR = $(LIBTRACEEVENT_DIR)/plugins
 LIBBPF_DIR      = $(srctree)/tools/lib/bpf/
 LIBSUBCMD_DIR   = $(srctree)/tools/lib/subcmd/
 LIBPERF_DIR     = $(srctree)/tools/lib/perf/
@@ -292,16 +293,17 @@ grep-libs = $(filter -l%,$(1))
 strip-libs = $(filter-out -l%,$(1))
 
 ifneq ($(OUTPUT),)
-  TE_PATH=$(OUTPUT)
-  PLUGINS_PATH=$(OUTPUT)
+  LIBTRACEEVENT_OUTPUT = $(abspath $(OUTPUT))/libtraceevent
 else
-  TE_PATH=$(TRACE_EVENT_DIR)
-  PLUGINS_PATH=$(TRACE_EVENT_DIR)plugins/
+  LIBTRACEEVENT_OUTPUT = $(CURDIR)/libtraceevent
 endif
-
-LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
+LIBTRACEEVENT_PLUGINS_OUTPUT = $(LIBTRACEEVENT_OUTPUT)_plugins
+LIBTRACEEVENT_DESTDIR = $(LIBTRACEEVENT_OUTPUT)
+LIBTRACEEVENT_PLUGINS_DESTDIR = $(LIBTRACEEVENT_PLUGINS_OUTPUT)
+LIBTRACEEVENT_INCLUDE = $(LIBTRACEEVENT_DESTDIR)/include
+LIBTRACEEVENT = $(LIBTRACEEVENT_OUTPUT)/libtraceevent.a
 export LIBTRACEEVENT
-LIBTRACEEVENT_DYNAMIC_LIST = $(PLUGINS_PATH)libtraceevent-dynamic-list
+LIBTRACEEVENT_DYNAMIC_LIST = $(LIBTRACEEVENT_PLUGINS_OUTPUT)/libtraceevent-dynamic-list
 
 #
 # The static build has no dynsym table, so this does not work for
@@ -821,21 +823,33 @@ $(patsubst perf-%,%.o,$(PROGRAMS)): $(wildcard */*.h)
 
 LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ) 'EXTRA_CFLAGS=$(EXTRA_CFLAGS)' 'LDFLAGS=$(filter-out -static,$(LDFLAGS))'
 
-$(LIBTRACEEVENT): FORCE
-	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a
-
-libtraceevent_plugins: FORCE
-	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR)plugins $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) plugins
-
-$(LIBTRACEEVENT_DYNAMIC_LIST): libtraceevent_plugins
-	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR)plugins $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent-dynamic-list
+$(LIBTRACEEVENT): FORCE | $(LIBTRACEEVENT_OUTPUT)
+	$(Q)$(MAKE) -C $(LIBTRACEEVENT_DIR) O=$(LIBTRACEEVENT_OUTPUT) \
+		DESTDIR=$(LIBTRACEEVENT_DESTDIR) prefix= \
+		$@ install_headers
 
 $(LIBTRACEEVENT)-clean:
 	$(call QUIET_CLEAN, libtraceevent)
-	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null
+	$(Q)$(RM) -r -- $(LIBTRACEEVENT_OUTPUT)
+
+libtraceevent_plugins: FORCE | $(LIBTRACEEVENT_PLUGINS_OUTPUT)
+	$(Q)$(MAKE) -C $(LIBTRACEEVENT_PLUGINS_DIR) O=$(LIBTRACEEVENT_PLUGINS_OUTPUT) \
+		DESTDIR=$(LIBTRACEEVENT_PLUGINS_DESTDIR) prefix= \
+		plugins
+
+libtraceevent_plugins-clean:
+	$(call QUIET_CLEAN, libtraceevent_plugins)
+	$(Q)$(RM) -r -- $(LIBTRACEEVENT_PLUGINS_OUTPUT)
+
+$(LIBTRACEEVENT_DYNAMIC_LIST): libtraceevent_plugins
+	$(Q)$(MAKE) -C $(LIBTRACEEVENT_PLUGINS_DIR) O=$(LIBTRACEEVENT_PLUGINS_OUTPUT) \
+		DESTDIR=$(LIBTRACEEVENT_PLUGINS_DESTDIR) prefix= \
+		$(LIBTRACEEVENT_FLAGS) $@
 
 install-traceevent-plugins: libtraceevent_plugins
-	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) install_plugins
+	$(Q)$(MAKE) -C $(LIBTRACEEVENT_PLUGINS_DIR) O=$(LIBTRACEEVENT_PLUGINS_OUTPUT) \
+		DESTDIR=$(LIBTRACEEVENT_PLUGINS_DESTDIR) prefix= \
+		$(LIBTRACEEVENT_FLAGS) install
 
 $(LIBAPI): FORCE | $(LIBAPI_OUTPUT)
 	$(Q)$(MAKE) -C $(LIBAPI_DIR) O=$(LIBAPI_OUTPUT) \
@@ -1060,6 +1074,11 @@ SKELETONS += $(SKEL_OUT)/kwork_trace.skel.h
 $(SKEL_TMP_OUT) $(LIBAPI_OUTPUT) $(LIBBPF_OUTPUT) $(LIBPERF_OUTPUT) $(LIBSUBCMD_OUTPUT):
 	$(Q)$(MKDIR) -p $@
 
+ifndef LIBTRACEEVENT_DYNAMIC
+$(LIBTRACEEVENT_OUTPUT) $(LIBTRACEEVENT_PLUGINS_OUTPUT):
+	$(Q)$(MKDIR) -p $@
+endif
+
 ifdef BUILD_BPF_SKEL
 BPFTOOL := $(SKEL_TMP_OUT)/bootstrap/bpftool
 BPF_INCLUDE := -I$(SKEL_TMP_OUT)/.. -I$(LIBBPF_INCLUDE)
@@ -1102,7 +1121,7 @@ endif # BUILD_BPF_SKEL
 bpf-skel-clean:
 	$(call QUIET_CLEAN, bpf-skel) $(RM) -r $(SKEL_TMP_OUT) $(SKELETONS)
 
-clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBPERF)-clean fixdep-clean python-clean bpf-skel-clean tests-coresight-targets-clean
+clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBPERF)-clean fixdep-clean python-clean bpf-skel-clean tests-coresight-targets-clean libtraceevent_plugins-clean
 	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIBPERF_A) $(OUTPUT)perf-archive $(OUTPUT)perf-iostat $(LANG_BINDINGS)
 	$(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
 	$(Q)$(RM) $(OUTPUT).config-detected
-- 
2.38.1.431.g37b22c650d-goog




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