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include ../../buildenv.mk

TCMALLOC := libsgx_tcmalloc.a
SRCDIR := gperftools-2.5

ifdef DEBUG
    DEBUG_FLAG := DEBUG
else
    DEBUG_FLAG := NDEBUG
endif

# turn on stack protector for TCMALLOC
CC_BELOW_4_9 := $(shell expr "`$(CC) -dumpversion`" \< "4.9")
ifeq ($(CC_BELOW_4_9), 1)
    COMMON_FLAG := -fstack-protector
else
    COMMON_FLAG := -fstack-protector-strong
endif

.PHONY: all
all: $(TCMALLOC) | $(BUILD_DIR)
	$(CP) $(TCMALLOC) $|

.PHONY: libtcmalloc
libtcmalloc:
	cd $(SRCDIR) && ( test -f Makefile || ./autogen-linux.sh $(DEBUG_FLAG) $(COMMON_FLAG)) && $(MAKE)

$(TCMALLOC): libtcmalloc
	$(CP) $(SRCDIR)/.libs/libtcmalloc_minimal.a $(TCMALLOC)

$(BUILD_DIR):
	@$(MKDIR) $@

.PHONY: clean
clean:
	@test ! -f $(SRCDIR)/Makefile || $(MAKE) -C $(SRCDIR) clean
	@$(RM) -r $(SRCDIR)/Makefile $(TCMALLOC) $(BUILD_DIR)/$(TCMALLOC)