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16492df70b
Commit ecaf7c5df5 removed gram.h from the backend's generated-headers target. In LLVM builds, this leads to loss of dependency information when generating .bc files. To fix, add a rule that mirrors ad-hoc .o dependencies for .bc files as well. Per cfbot (no buildfarm failures reported) Analysis by Tom Lane and Andres Freund Proposed fix by Andres Freund Discussion: https://www.postgresql.org/message-id/20220914210427.y26tkagmxo5wwbvp%40awork3.anarazel.de
46 lines
1.3 KiB
Makefile
46 lines
1.3 KiB
Makefile
#
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# Common make rules for backend
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#
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# src/backend/common.mk
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#
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# When including this file, set OBJS to the object files created in
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# this directory and SUBDIRS to subdirectories containing more things
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# to build.
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subsysfilename = objfiles.txt
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SUBDIROBJS = $(SUBDIRS:%=%/$(subsysfilename))
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# top-level backend directory obviously has its own "all" target
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ifneq ($(subdir), src/backend)
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all: $(subsysfilename)
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endif
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objfiles.txt: Makefile $(SUBDIROBJS) $(OBJS)
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# Don't rebuild the list if only the OBJS have changed.
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$(if $(filter-out $(OBJS),$?),( $(if $(SUBDIROBJS),cat $(SUBDIROBJS); )echo $(addprefix $(subdir)/,$(OBJS)) ) >$@,touch $@)
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ifeq ($(with_llvm), yes)
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objfiles.txt: $(patsubst %.o,%.bc, $(OBJS))
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$(patsubst %.o,%.bc, $(OBJS)): $(OBJS)
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endif
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# make function to expand objfiles.txt contents
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expand_subsys = $(foreach file,$(1),$(if $(filter %/objfiles.txt,$(file)),$(patsubst ../../src/backend/%,%,$(addprefix $(top_builddir)/,$(shell cat $(file)))),$(file)))
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# Parallel make trickery
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$(SUBDIROBJS): $(SUBDIRS:%=%-recursive) ;
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.PHONY: $(SUBDIRS:%=%-recursive)
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$(SUBDIRS:%=%-recursive):
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$(MAKE) -C $(subst -recursive,,$@) all
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$(call recurse,clean)
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clean: clean-local
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clean-local:
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rm -f $(subsysfilename) $(OBJS) $(patsubst %.o,%.bc, $(OBJS))
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$(call recurse,coverage)
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$(call recurse,install)
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