perf ui: Make ui its own library

Make the ui code its own library. This is done to avoid compiling code
twice, once for the perf tool and once for the perf python module.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Gary Guo <gary@garyguo.net>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Wedson Almeida Filho <wedsonaf@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andrei Vagin <avagin@google.com>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Benno Lossin <benno.lossin@proton.me>
Cc: Björn Roy Baron <bjorn3_gh@protonmail.com>
Cc: Andreas Hindborg <a.hindborg@samsung.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240625214117.953777-3-irogers@google.com

5 files changed, 31 insertions, 21 deletions

diff --git a/tools/perf/Build b/tools/perf/Build
index b0cb7ad8e6ac..16ed1357202b 100644
--- a/tools/perf/Build
+++ b/tools/perf/Build
@@ -55,7 +55,7 @@ CFLAGS_builtin-report.o	   += -DDOCDIR="BUILD_STR($(srcdir_SQ)/Documentation)"
 
 perf-y += util/
 perf-y += arch/
-perf-y += ui/
+perf-ui-y += ui/
 perf-y += scripts/
 
 gtk-y += ui/gtk/
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index acc41a6717db..c5a027381c55 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -425,10 +425,14 @@ endif
 
 export PERL_PATH
 
+LIBPERF_UI_IN := $(OUTPUT)perf-ui-in.o
+LIBPERF_UI := $(OUTPUT)libperf-ui.a
+
 PERFLIBS = $(LIBAPI) $(LIBPERF) $(LIBSUBCMD) $(LIBSYMBOL)
 ifdef LIBBPF_STATIC
   PERFLIBS += $(LIBBPF)
 endif
+PERFLIBS += $(LIBPERF_UI)
 
 # We choose to avoid "if .. else if .. else .. endif endif"
 # because maintaining the nesting to match is a pain.  If
@@ -729,6 +733,12 @@ $(PERF_IN): prepare FORCE
 $(PMU_EVENTS_IN): FORCE prepare
 	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=pmu-events obj=pmu-events
 
+$(LIBPERF_UI_IN): FORCE prepare
+	$(Q)$(MAKE) $(build)=perf-ui
+
+$(LIBPERF_UI): $(LIBPERF_UI_IN)
+	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $<
+
 $(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) $(PMU_EVENTS_IN)
 	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) \
 		$(PERF_IN) $(PMU_EVENTS_IN) $(LIBS) -o $@
diff --git a/tools/perf/ui/Build b/tools/perf/ui/Build
index 6b6d7143a37b..d2ecd9290600 100644
--- a/tools/perf/ui/Build
+++ b/tools/perf/ui/Build
@@ -1,12 +1,12 @@
-perf-y += setup.o
-perf-y += helpline.o
-perf-y += progress.o
-perf-y += util.o
-perf-y += hist.o
-perf-y += stdio/hist.o
+perf-ui-y += setup.o
+perf-ui-y += helpline.o
+perf-ui-y += progress.o
+perf-ui-y += util.o
+perf-ui-y += hist.o
+perf-ui-y += stdio/hist.o
 
 CFLAGS_setup.o += -DLIBDIR="BUILD_STR($(LIBDIR))"
 
-perf-$(CONFIG_SLANG) += browser.o
-perf-$(CONFIG_SLANG) += browsers/
-perf-$(CONFIG_SLANG) += tui/
+perf-ui-$(CONFIG_SLANG) += browser.o
+perf-ui-$(CONFIG_SLANG) += browsers/
+perf-ui-$(CONFIG_SLANG) += tui/
diff --git a/tools/perf/ui/browsers/Build b/tools/perf/ui/browsers/Build
index 2608b5da3167..a07489e44765 100644
--- a/tools/perf/ui/browsers/Build
+++ b/tools/perf/ui/browsers/Build
@@ -1,7 +1,7 @@
-perf-y += annotate.o
-perf-y += annotate-data.o
-perf-y += hists.o
-perf-y += map.o
-perf-y += scripts.o
-perf-y += header.o
-perf-y += res_sample.o
+perf-ui-y += annotate.o
+perf-ui-y += annotate-data.o
+perf-ui-y += hists.o
+perf-ui-y += map.o
+perf-ui-y += scripts.o
+perf-ui-y += header.o
+perf-ui-y += res_sample.o
diff --git a/tools/perf/ui/tui/Build b/tools/perf/ui/tui/Build
index f916df33a1a7..2ac058ad1a61 100644
--- a/tools/perf/ui/tui/Build
+++ b/tools/perf/ui/tui/Build
@@ -1,4 +1,4 @@
-perf-y += setup.o
-perf-y += util.o
-perf-y += helpline.o
-perf-y += progress.o
+perf-ui-y += setup.o
+perf-ui-y += util.o
+perf-ui-y += helpline.o
+perf-ui-y += progress.o