Commit 5d511948 authored by Maria Matejka's avatar Maria Matejka

Build: Automatic dependency tracking for generated files

parent 875cc073
Pipeline #46568 passed with stages
in 5 minutes and 57 seconds
......@@ -65,7 +65,8 @@ endif
docgoals := docs userdocs progdocs
testgoals := check test tests tests_run
cleangoals := clean distclean testsclean
.PHONY: all daemon cli $(docgoals) $(testgoals) $(cleangoals) tags cscope
.PHONY: all daemon cli $(docgoals) $(testgoals) $(cleangoals) tags cscope prepare
all: daemon cli
daemon: $(daemon)
......@@ -103,35 +104,50 @@ include $(addsuffix /Makefile,$(addprefix $(srcdir)/,$(dirs)))
# Generic rules
# Object file rules
$(objdir)/%.o: $(srcdir)/%.c $(objdir)/.dir-stamp $(objdir)/sysdep/paths.h
$(objdir)/%.o: $(srcdir)/%.c | prepare
$(E)echo CC -o $@ -c $<
$(Q)$(CC) $(CFLAGS) -MMD -MP -o $@ -c $<
$(objdir)/%.o: $(objdir)/%.c $(objdir)/.dir-stamp $(objdir)/sysdep/paths.h
$(objdir)/%.o: $(objdir)/%.c | prepare
$(E)echo CC -o $@ -c $<
$(Q)$(CC) $(CFLAGS) -MMD -MP -o $@ -c $<
# Debug: Preprocessed source rules
$(objdir)/%.E: $(srcdir)/%.c $(objdir)/.dir-stamp $(objdir)/sysdep/paths.h
$(objdir)/%.E: $(srcdir)/%.c | prepare
$(E)echo CC -o $@ -E $<
$(Q)$(CC) $(CFLAGS) -MMD -MP -o $@ -E $<
$(objdir)/%.E: $(objdir)/%.c $(objdir)/.dir-stamp $(objdir)/sysdep/paths.h
$(objdir)/%.E: $(objdir)/%.c | prepare
$(E)echo CC -o $@ -E $<
$(Q)$(CC) $(CFLAGS) -MMD -MP -o $@ -E $<
# Debug: Assembler object rules
$(objdir)/%.S: $(srcdir)/%.c $(objdir)/.dir-stamp $(objdir)/sysdep/paths.h
$(objdir)/%.S: $(srcdir)/%.c | prepare
$(E)echo CC -o $@ -S $<
$(Q)$(CC) $(CFLAGS) -MMD -MP -o $@ -S $<
$(objdir)/%.S: $(objdir)/%.c $(objdir)/.dir-stamp $(objdir)/sysdep/paths.h
$(objdir)/%.S: $(objdir)/%.c | prepare
$(E)echo CC -o $@ -S $<
$(Q)$(CC) $(CFLAGS) -MMD -MP -o $@ -S $<
# Finally include the computed dependencies:
DEPS = $(shell find $(objdir) -name '*.d')
# ## if there is at least one non-clean goal
ifneq ($(filter-out $(cleangoals),$(MAKECMDGOALS)),)
-include $(DEPS)
endif
# ## if the implicit goal is called
ifeq ($(MAKECMDGOALS),)
-include $(DEPS)
endif
# Rule for pre-generating all generated includables
# before compiling any C file
prepare: $(objdir)/sysdep/paths.h | $(objdir)/.dir-stamp
$(objdir)/.dir-stamp:
$(objdir)/.dir-stamp: Makefile
$(E)echo MKDIR -p $(addprefix $(objdir)/,$(dirs) doc)
$(Q)mkdir -p $(addprefix $(objdir)/,$(dirs) doc)
$(Q)touch $@
......@@ -150,7 +166,7 @@ $(objdir)/sysdep/paths.h: Makefile
tests_targets_ok = $(addsuffix .ok,$(tests_targets))
$(tests_targets): %: %.o $(tests_objs)
$(tests_targets): %: %.o $(tests_objs) | prepare
$(E)echo LD $(LDFLAGS) -o $@ $< "..." $(LIBS)
$(Q)$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
......@@ -165,16 +181,6 @@ check: tests tests_run
tests: $(tests_targets)
tests_run: $(tests_targets_ok)
# Finally include the computed dependencies
ifneq ($(filter-out $(cleangoals),$(MAKECMDGOALS)),)
-include $(shell find $(objdir) -name "*.d")
endif
ifeq ($(MAKECMDGOALS),)
-include $(shell find $(objdir) -name "*.d")
endif
tags:
cd $(srcdir) ; etags -lc `find $(dirs) -name *.[chY]`
......
......@@ -3,8 +3,6 @@ obj := $(src-o-files)
$(all-client)
$(o)commands.o: $(objdir)/conf/commands.h
$(exedir)/birdc: $(o)birdc.o
$(exedir)/birdc: LIBS += $(CLIENT_LIBS)
......
......@@ -25,9 +25,10 @@ $(o)cf-parse.tab.c: $(o)cf-parse.y
$(o)cf-lex.c: $(s)cf-lex.l
$(FLEX) $(FLEX_DEBUG) -f -s -B -8 -Pcf_ -o$@ $<
$(o)cf-lex.o: $(o)cf-parse.tab.h $(o)keywords.h
$(o)cf-lex.o: CFLAGS+=-Wno-sign-compare -Wno-unused-function
prepare: $(o)keywords.h $(o)commands.h $(o)cf-parse.tab.h
$(addprefix $(o), cf-parse.y keywords.h commands.h cf-parse.tab.h cf-parse.tab.c cf-lex.c): $(objdir)/.dir-stamp
$(call clean,cf-parse.tab.h cf-parse.tab.c cf-parse.y keywords.h commands.h cf-lex.c cf-parse.output)
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