perf build: Install libtraceevent locally when building

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@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: bpf@vger.kernel.org
Link: http://lore.kernel.org/lkml/20221109184914.1357295-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/.gitignore

@@ -43,6 +43,7 @@ libapi/
 libbpf/
 libperf/
 libsubcmd/
+libtraceevent/
+libtraceevent_plugins/
 fixdep
-libtraceevent-dynamic-list
 Documentation/doc.dep

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