1#
2# Common make rules for backend
3#
4# src/backend/common.mk
5#
6
7# When including this file, set OBJS to the object files created in
8# this directory and SUBDIRS to subdirectories containing more things
9# to build.
10
11ifdef PARTIAL_LINKING
12# old style: linking using SUBSYS.o
13subsysfilename = SUBSYS.o
14else
15# new style: linking all object files at once
16subsysfilename = objfiles.txt
17endif
18
19SUBDIROBJS = $(SUBDIRS:%=%/$(subsysfilename))
20
21# top-level backend directory obviously has its own "all" target
22ifneq ($(subdir), src/backend)
23all: $(subsysfilename)
24endif
25
26SUBSYS.o: $(SUBDIROBJS) $(OBJS)
27	$(LD) $(LDREL) $(LDOUT) $@ $^
28
29objfiles.txt: Makefile $(SUBDIROBJS) $(OBJS)
30# Don't rebuild the list if only the OBJS have changed.
31	$(if $(filter-out $(OBJS),$?),( $(if $(SUBDIROBJS),cat $(SUBDIROBJS); )echo $(addprefix $(subdir)/,$(OBJS)) ) >$@,touch $@)
32
33# make function to expand objfiles.txt contents
34expand_subsys = $(foreach file,$(1),$(if $(filter %/objfiles.txt,$(file)),$(patsubst ../../src/backend/%,%,$(addprefix $(top_builddir)/,$(shell cat $(file)))),$(file)))
35
36# Parallel make trickery
37$(SUBDIROBJS): $(SUBDIRS:%=%-recursive) ;
38
39.PHONY: $(SUBDIRS:%=%-recursive)
40$(SUBDIRS:%=%-recursive):
41	$(MAKE) -C $(subst -recursive,,$@) all
42
43$(call recurse,clean)
44clean: clean-local
45clean-local:
46	rm -f $(subsysfilename) $(OBJS)
47
48$(call recurse,coverage)
49