script to help with the section ordering

Makefile

@@ -1260,6 +1260,12 @@ $(FROM_CPYTHON_SRCS:.c=.prof.o): %.prof.o: %.c $(BUILD_SYSTEM_DEPS)
 	$(ECHO) Compiling C file to $@
 	$(VERB) $(CC_PROFILE) $(EXT_CFLAGS_PROFILE) -c $< -o $@ -g -MMD -MP -MF $(patsubst %.o,%.d,$@)
 
+.PHONY: update_section_ordering
+update_section_ordering: pyston_release
+	perf record -o perf_section_ordering.data -- ./pyston_release -q minibenchmarks/combined.py
+	$(MAKE) pyston_pgo
+	python tools/generate_section_ordering_from_pgo_build.py pyston_pgo perf_section_ordering.data > section_ordering.txt
+	rm perf_section_ordering.data