perf python: Clean up build dependencies

The python build now depends on libraries and doesn't use
python-ext-sources except for the util/python.c dependency. Switch to
just directly depending on that file and util/setup.py. This allows
the removal of python-ext-sources.

Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: James Clark <[email protected]>
Cc: Suzuki K Poulose <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Nick Terrell <[email protected]>
Cc: Gary Guo <[email protected]>
Cc: Alex Gaynor <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Wedson Almeida Filho <[email protected]>
Cc: Ze Gao <[email protected]>
Cc: Alice Ryhl <[email protected]>
Cc: Andrei Vagin <[email protected]>
Cc: Yicong Yang <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Oliver Upton <[email protected]>
Cc: John Garry <[email protected]>
Cc: Benno Lossin <[email protected]>
Cc: Björn Roy Baron <[email protected]>
Cc: Andreas Hindborg <[email protected]>
Cc: Paul Walmsley <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: captain5050

tools/perf/Makefile.perf

@@ -380,14 +380,6 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT
 # Use the detected configuration
 -include $(OUTPUT).config-detected
 
-ifeq ($(CONFIG_LIBTRACEEVENT),y)
-  PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
-else
-  PYTHON_EXT_SRCS := $(shell grep -v ^\#\\\|util/trace-event.c\\\|util/trace-event-parse.c util/python-ext-sources)
-endif
-
-PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBAPI)
-
 SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))
 
 PROGRAMS += $(OUTPUT)perf
@@ -715,7 +707,7 @@ all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)
 # Create python binding output directory if not already present
 $(shell [ -d '$(OUTPUT)python' ] || mkdir -p '$(OUTPUT)python')
 
-$(OUTPUT)python/perf$(PYTHON_EXTENSION_SUFFIX): $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS) $(PERFLIBS)
+$(OUTPUT)python/perf$(PYTHON_EXTENSION_SUFFIX): util/python.c util/setup.py $(PERFLIBS)
 	$(QUIET_GEN)LDSHARED="$(CC) -pthread -shared" \
         CFLAGS='$(CFLAGS)' LDFLAGS='$(LDFLAGS) $(LIBS)' \
 	  $(PYTHON_WORD) util/setup.py \