Messages in this thread | | | Date | Wed, 13 May 2015 16:50:50 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH v2 1/2] tools lib traceevent: Export dynamic symbols used by traceevent plugins |
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On Tue, May 12, 2015 at 11:25:45PM +0800, hekuang wrote: > Hi, jirka > > On 05/12/2015 08:37 PM, Jiri Olsa wrote: > >On Tue, May 12, 2015 at 06:41:56AM +0000, He Kuang wrote: > > > >SNIP > > > >> $(Q)$(MAKE) $(build)=perf > >>-$(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) > >>- $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(PERF_IN) $(LIBS) -o $@ > >>+LD_LIBTRACEEVENT_FLAGS += -Xlinker --dynamic-list=$(LIBTRACEEVENT_DYNAMIC_LIST) > >>+$(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) $(LIBTRACEEVENT_DYNAMIC_LIST) > >>+ $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(LD_LIBTRACEEVENT_FLAGS) $(PERF_IN) $(LIBS) -o $@ > >> $(GTK_IN): FORCE > >> $(Q)$(MAKE) $(build)=gtk > >>@@ -373,7 +375,13 @@ $(LIB_FILE): $(LIBPERF_IN) > >> LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ) > >> $(LIBTRACEEVENT): FORCE > >>- $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a plugins > >>+ $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a > >>+ > >>+libtraceevent_plugins: FORCE > >>+ $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) plugins > >>+ > >>+$(LIBTRACEEVENT_DYNAMIC_LIST): libtraceevent_plugins > >>+ $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent-dynamic-list > >I thought the idea of v2 was not to introduce new target, > >something like in attached patch (not completely tested) > > > >jirka > > There is a problem, the target perf executable is dependent on > the dynamic-list-file, so we should add plugins or the > dynamic-list-file to perf's dependencies. > > As your patch below, the dynamic-list-file is built implictly > when building plugins, so we should not add it directly to the > dependency list of perf. > > It seems new targets are needed. In the v2 patch,
hum, I dont get it.. why ?
dynamic-list-file gets rebuilt any time plugins are rebuilt.. why not keep just the 'plugins' dependency?
jirka
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