# Clear out all vpaths, then set just one (default vpath) for the main build
# directory.
vpath
vpath % .

# Clear the default suffixes, so that built-in rules are not used.
.SUFFIXES :

SHELL := /bin/sh

CC := @CC@

# Configuration parameters.
DESTDIR =
BINDIR := $(DESTDIR)@BINDIR@
INCLUDEDIR := $(DESTDIR)@INCLUDEDIR@
LIBDIR := $(DESTDIR)@LIBDIR@
DATADIR := $(DESTDIR)@DATADIR@
MANDIR := $(DESTDIR)@MANDIR@
srcroot := @srcroot@
objroot := @objroot@
abs_srcroot := @abs_srcroot@
abs_objroot := @abs_objroot@

# Build parameters.
CPPFLAGS := @CPPFLAGS@ -I$(srcroot)include -I$(objroot)include
CFLAGS := @CFLAGS@
LDFLAGS := @LDFLAGS@
LIBS := @LIBS@
RPATH_EXTRA := @RPATH_EXTRA@
SO := @so@
O := @o@
A := @a@
EXE := @exe@
LIB := @lib@
ifeq (macho, @abi@)
WL_SONAME := dylib_install_name
else
WL_SONAME := soname
endif
REV := @rev@
install_suffix := @install_suffix@
ABI := @abi@
XSLTPROC := @XSLTPROC@
AUTOCONF := @AUTOCONF@
RPATH := @RPATH@
cfghdrs_in := @cfghdrs_in@
cfghdrs_out := @cfghdrs_out@
cfgoutputs_in := @cfgoutputs_in@
cfgoutputs_out := @cfgoutputs_out@
enable_autogen := @enable_autogen@
enable_experimental := @enable_experimental@

ifeq (macho, $(ABI))
TEST_LIBRARY_PATH := DYLD_FALLBACK_LIBRARY_PATH=$(objroot)lib
else
TEST_LIBRARY_PATH :=
endif

LIBJEMALLOC := $(LIB)jemalloc$(install_suffix)

# Lists of files.
BINS := $(srcroot)bin/pprof $(objroot)bin/jemalloc.sh
CHDRS := $(objroot)include/jemalloc/jemalloc$(install_suffix).h \
	$(objroot)include/jemalloc/jemalloc_defs$(install_suffix).h
CSRCS := $(srcroot)src/jemalloc.c $(srcroot)src/arena.c $(srcroot)src/atomic.c \
	$(srcroot)src/base.c $(srcroot)src/bitmap.c $(srcroot)src/chunk.c \
	$(srcroot)src/chunk_dss.c $(srcroot)src/chunk_mmap.c \
	$(srcroot)src/ckh.c $(srcroot)src/ctl.c $(srcroot)src/extent.c \
	$(srcroot)src/hash.c $(srcroot)src/huge.c $(srcroot)src/mb.c \
	$(srcroot)src/mutex.c $(srcroot)src/prof.c $(srcroot)src/quarantine.c \
	$(srcroot)src/rtree.c $(srcroot)src/stats.c $(srcroot)src/tcache.c \
	$(srcroot)src/util.c $(srcroot)src/tsd.c
ifeq (macho, $(ABI))
CSRCS += $(srcroot)src/zone.c
endif
STATIC_LIBS := $(objroot)lib/$(LIBJEMALLOC).$(A)
DSOS := $(objroot)lib/$(LIBJEMALLOC).$(SO).$(REV) \
	$(objroot)lib/$(LIBJEMALLOC).$(SO) \
	$(objroot)lib/$(LIBJEMALLOC)_pic.$(A)
MAN3 := $(objroot)doc/jemalloc$(install_suffix).3
DOCS_XML := $(objroot)doc/jemalloc$(install_suffix).xml
DOCS_HTML := $(DOCS_XML:$(objroot)%.xml=$(srcroot)%.html)
DOCS_MAN3 := $(DOCS_XML:$(objroot)%.xml=$(srcroot)%.3)
DOCS := $(DOCS_HTML) $(DOCS_MAN3)
CTESTS := $(srcroot)test/aligned_alloc.c $(srcroot)test/allocated.c \
	$(srcroot)test/bitmap.c $(srcroot)test/mremap.c \
	$(srcroot)test/posix_memalign.c $(srcroot)test/thread_arena.c \
	$(srcroot)test/thread_tcache_enabled.c
ifeq ($(enable_experimental), 1)
CTESTS += $(srcroot)test/allocm.c $(srcroot)test/rallocm.c
endif

.PHONY: all dist doc_html doc_man doc
.PHONY: install_bin install_include install_lib
.PHONY: install_html install_man install_doc install
.PHONY: tests check clean distclean relclean

.SECONDARY : $(CTESTS:$(srcroot)%.c=$(objroot)%.$(O))

# Default target.
all: build

dist: build_doc

$(srcroot)doc/%.html : $(objroot)doc/%.xml $(srcroot)doc/stylesheet.xsl $(objroot)doc/html.xsl
	$(XSLTPROC) -o $@ $(objroot)doc/html.xsl $<

$(srcroot)doc/%.3 : $(objroot)doc/%.xml $(srcroot)doc/stylesheet.xsl $(objroot)doc/manpages.xsl
	$(XSLTPROC) -o $@ $(objroot)doc/manpages.xsl $<

build_doc_html: $(DOCS_HTML)
build_doc_man: $(DOCS_MAN3)
build_doc: $(DOCS)

#
# Include generated dependency files.
#
-include $(CSRCS:$(srcroot)%.c=$(objroot)%.d)
-include $(CSRCS:$(srcroot)%.c=$(objroot)%.pic.d)
-include $(CTESTS:$(srcroot)%.c=$(objroot)%.d)

$(objroot)src/%.$(O): $(srcroot)src/%.c
	@mkdir -p $(@D)
	$(CC) $(CFLAGS) -c $(CPPFLAGS) -o $@ $<
	@$(CC) -MM $(CPPFLAGS) -MT $@ -o $(@:%.$(O)=%.d) $<

$(objroot)src/%.pic.$(O): $(srcroot)src/%.c
	@mkdir -p $(@D)
	$(CC) $(CFLAGS) -fPIC -DPIC -c $(CPPFLAGS) -o $@ $<
	@$(CC) -MM $(CPPFLAGS) -MT $@ -o $(@:%.$(O)=%.d) $<

%.$(SO) : %.$(SO).$(REV)
	@mkdir -p $(@D)
	ln -sf $(<F) $@

$(objroot)lib/$(LIBJEMALLOC).$(SO).$(REV) : $(CSRCS:$(srcroot)%.c=$(objroot)%.pic.$(O))
	@mkdir -p $(@D)
	$(CC) -shared -Wl,-$(WL_SONAME),$(@F) $(RPATH_EXTRA:%=$(RPATH)%) -o $@ $+ $(LDFLAGS) $(LIBS)

$(objroot)lib/$(LIBJEMALLOC)_pic.$(A) : $(CSRCS:$(srcroot)%.c=$(objroot)%.pic.$(O))
	@mkdir -p $(@D)
	ar crus $@ $+

$(objroot)lib/$(LIBJEMALLOC).$(A) : $(CSRCS:$(srcroot)%.c=$(objroot)%.$(O))
	@mkdir -p $(@D)
	ar crus $@ $+

$(objroot)test/%.$(O): $(srcroot)test/%.c
	@mkdir -p $(@D)
	$(CC) $(CFLAGS) -c $(CPPFLAGS) -I$(objroot)test -o $@ $<
	@$(CC) -MM $(CPPFLAGS) -I$(objroot)test -MT $@ -o $(@:%.$(O)=%.d) $<

$(objroot)test/%$(EXE): $(objroot)test/%.$(O) \
		 $(objroot)lib/$(LIBJEMALLOC).$(SO)
	@mkdir -p $(@D)
ifneq ($(RPATH), )
	$(CC) -o $@ $< $(RPATH)$(objroot)lib -L$(objroot)lib -ljemalloc$(install_suffix) $(LIBS)
else
	$(CC) -o $@ $< -L$(objroot)lib -ljemalloc$(install_suffix) $(LIBS)
endif

build_lib_shared: $(DSOS)
build_lib_static: $(STATIC_LIBS)
build: build_lib_shared build_lib_static

install_bin:
	install -d $(BINDIR)
	@for b in $(BINS); do \
	echo "install -m 755 $$b $(BINDIR)"; \
	install -m 755 $$b $(BINDIR); \
done

install_include:
	install -d $(INCLUDEDIR)/jemalloc
	@for h in $(CHDRS); do \
	echo "install -m 644 $$h $(INCLUDEDIR)/jemalloc"; \
	install -m 644 $$h $(INCLUDEDIR)/jemalloc; \
done

install_lib_shared: $(DSOS)
	install -d $(LIBDIR)
	install -m 755 $(objroot)lib/$(LIBJEMALLOC).$(SO).$(REV) $(LIBDIR)
	ln -sf $(LIBJEMALLOC).$(SO).$(REV) $(LIBDIR)/$(LIBJEMALLOC).$(SO)

install_lib_static: $(DSOS) $(STATIC_LIBS)
	install -d $(LIBDIR)
	install -m 755 $(objroot)lib/$(LIBJEMALLOC)_pic.$(A) $(LIBDIR)
	install -m 755 $(objroot)lib/$(LIBJEMALLOC).$(A) $(LIBDIR)

install_lib: install_lib_shared install_lib_static

install_doc_html:
	install -d $(DATADIR)/doc/jemalloc$(install_suffix)
	@for d in $(DOCS_HTML); do \
	echo "install -m 644 $$d $(DATADIR)/doc/jemalloc$(install_suffix)"; \
	install -m 644 $$d $(DATADIR)/doc/jemalloc$(install_suffix); \
done

install_doc_man:
	install -d $(MANDIR)/man3
	@for d in $(DOCS_MAN3); do \
	echo "install -m 644 $$d $(MANDIR)/man3"; \
	install -m 644 $$d $(MANDIR)/man3; \
done

install_doc: install_doc_html install_doc_man

install: install_bin install_include install_lib install_doc

tests: $(CTESTS:$(srcroot)%.c=$(objroot)%$(EXE))

check: tests
	@mkdir -p $(objroot)test
	@$(SHELL) -c 'total=0; \
		failures=0; \
		echo "========================================="; \
		for t in $(CTESTS:$(srcroot)%.c=$(objroot)%); do \
			total=`expr $$total + 1`; \
			/bin/echo -n "$${t} ... "; \
			$(TEST_LIBRARY_PATH) $${t}$(EXE) $(abs_srcroot) $(abs_objroot) \
			  > $(objroot)$${t}.out 2>&1; \
			if test -e "$(srcroot)$${t}.exp"; then \
				diff -w -u $(srcroot)$${t}.exp \
				  $(objroot)$${t}.out >/dev/null 2>&1; \
				fail=$$?; \
				if test "$${fail}" -eq "1" ; then \
					failures=`expr $${failures} + 1`; \
					echo "*** FAIL ***"; \
				else \
					echo "pass"; \
				fi; \
			else \
				echo "*** FAIL *** (.exp file is missing)"; \
				failures=`expr $${failures} + 1`; \
			fi; \
		done; \
		echo "========================================="; \
		echo "Failures: $${failures}/$${total}"'

clean:
	rm -f $(CSRCS:$(srcroot)%.c=$(objroot)%.$(O))
	rm -f $(CSRCS:$(srcroot)%.c=$(objroot)%.pic.$(O))
	rm -f $(CSRCS:$(srcroot)%.c=$(objroot)%.d)
	rm -f $(CSRCS:$(srcroot)%.c=$(objroot)%.pic.d)
	rm -f $(CTESTS:$(srcroot)%.c=$(objroot)%$(EXE))
	rm -f $(CTESTS:$(srcroot)%.c=$(objroot)%.$(O))
	rm -f $(CTESTS:$(srcroot)%.c=$(objroot)%.d)
	rm -f $(CTESTS:$(srcroot)%.c=$(objroot)%.out)
	rm -f $(DSOS) $(STATIC_LIBS)

distclean: clean
	rm -rf $(objroot)autom4te.cache
	rm -f $(objroot)config.log
	rm -f $(objroot)config.status
	rm -f $(objroot)config.stamp
	rm -f $(cfghdrs_out)
	rm -f $(cfgoutputs_out)

relclean: distclean
	rm -f $(objroot)configure
	rm -f $(srcroot)VERSION
	rm -f $(DOCS_HTML)
	rm -f $(DOCS_MAN3)

#===============================================================================
# Re-configuration rules.

ifeq ($(enable_autogen), 1)
$(srcroot)configure : $(srcroot)configure.ac
	cd ./$(srcroot) && $(AUTOCONF)

$(objroot)config.status : $(srcroot)configure
	./$(objroot)config.status --recheck

$(srcroot)config.stamp.in : $(srcroot)configure.ac
	echo stamp > $(srcroot)config.stamp.in

$(objroot)config.stamp : $(cfgoutputs_in) $(cfghdrs_in) $(srcroot)configure
	./$(objroot)config.status
	@touch $@

# There must be some action in order for make to re-read Makefile when it is
# out of date.
$(cfgoutputs_out) $(cfghdrs_out) : $(objroot)config.stamp
	@true
endif