net/tap: add TUN/TAP device PMD

[dpdk.git] / mk / rte.lib.mk

diff --git a/mk/rte.lib.mk b/mk/rte.lib.mk
index a67c129..33a5f5a 100644 (file)
--- a/mk/rte.lib.mk
+++ b/mk/rte.lib.mk
@@ -35,13 +35,22 @@ include $(RTE_SDK)/mk/internal/rte.clean-pre.mk
 include $(RTE_SDK)/mk/internal/rte.build-pre.mk
 include $(RTE_SDK)/mk/internal/rte.depdirs-pre.mk
 
+EXTLIB_BUILD ?= n
+
 # VPATH contains at least SRCDIR
 VPATH += $(SRCDIR)
 
-ifeq ($(RTE_BUILD_SHARED_LIB),y)
-LIB := $(patsubst %.a,%.so,$(LIB))
+ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
+LIB := $(patsubst %.a,%.so.$(LIBABIVER),$(LIB))
+ifeq ($(EXTLIB_BUILD),n)
+ifeq ($(CONFIG_RTE_NEXT_ABI),y)
+LIB := $(LIB).1
+endif
+CPU_LDFLAGS += --version-script=$(SRCDIR)/$(EXPORT_MAP)
+endif
 endif
 
+
 _BUILD = $(LIB)
 _INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y) $(RTE_OUTPUT)/lib/$(LIB)
 _CLEAN = doclean
@@ -62,10 +71,20 @@ exe2cmd = $(strip $(call dotfile,$(patsubst %,%.cmd,$(1))))
 ifeq ($(LINK_USING_CC),1)
 # Override the definition of LD here, since we're linking with CC
 LD := $(CC) $(CPU_CFLAGS)
-CPU_LDFLAGS := $(call linkerprefix,$(CPU_LDFLAGS))
+_CPU_LDFLAGS := $(call linkerprefix,$(CPU_LDFLAGS))
+override EXTRA_LDFLAGS := $(call linkerprefix,$(EXTRA_LDFLAGS))
+else
+_CPU_LDFLAGS := $(CPU_LDFLAGS)
 endif
 
-O_TO_A = $(AR) crus $(LIB) $(OBJS-y)
+# Translate DEPDIRS-y into LDLIBS
+# Ignore (sub)directory dependencies which do not provide an actual library
+_IGNORE_DIRS = lib/librte_eal/% lib/librte_compat
+_DEPDIRS = $(filter-out $(_IGNORE_DIRS),$(DEPDIRS-y))
+_LDDIRS = $(subst librte_ether,librte_ethdev,$(_DEPDIRS))
+LDLIBS += $(subst lib/lib,-l,$(_LDDIRS))
+
+O_TO_A = $(AR) crDs $(LIB) $(OBJS-y)
 O_TO_A_STR = $(subst ','\'',$(O_TO_A)) #'# fix syntax highlight
 O_TO_A_DISP = $(if $(V),"$(O_TO_A_STR)","  AR $(@)")
 O_TO_A_CMD = "cmd_$@ = $(O_TO_A_STR)"
@@ -74,7 +93,12 @@ O_TO_A_DO = @set -e; \
        $(O_TO_A) && \
        echo $(O_TO_A_CMD) > $(call exe2cmd,$(@))
 
-O_TO_S = $(LD) $(CPU_LDFLAGS) -shared $(OBJS-y) -o $(LIB)
+ifneq ($(CC_SUPPORTS_Z),false)
+NO_UNDEFINED := -z defs
+endif
+
+O_TO_S = $(LD) -L$(RTE_SDK_BIN)/lib $(_CPU_LDFLAGS) $(EXTRA_LDFLAGS) \
+         -shared $(OBJS-y) $(NO_UNDEFINED) $(LDLIBS) -Wl,-soname,$(LIB) -o $(LIB)
 O_TO_S_STR = $(subst ','\'',$(O_TO_S)) #'# fix syntax highlight
 O_TO_S_DISP = $(if $(V),"$(O_TO_S_STR)","  LD $(@)")
 O_TO_S_DO = @set -e; \
@@ -82,31 +106,17 @@ O_TO_S_DO = @set -e; \
        $(O_TO_S) && \
        echo $(O_TO_S_CMD) > $(call exe2cmd,$(@))
 
-ifeq ($(RTE_BUILD_SHARED_LIB),n)
-O_TO_C = $(AR) crus $(LIB_ONE) $(OBJS-y)
-O_TO_C_STR = $(subst ','\'',$(O_TO_C)) #'# fix syntax highlight
-O_TO_C_DISP = $(if $(V),"$(O_TO_C_STR)","  AR_C $(@)")
-O_TO_C_DO = @set -e; \
-       $(lib_dir) \
-       $(copy_obj)
-else
-O_TO_C = $(LD) -shared $(OBJS-y) -o $(LIB_ONE)
-O_TO_C_STR = $(subst ','\'',$(O_TO_C)) #'# fix syntax highlight
-O_TO_C_DISP = $(if $(V),"$(O_TO_C_STR)","  LD_C $(@)")
-O_TO_C_DO = @set -e; \
-       $(lib_dir) \
-       $(copy_obj)
-endif
-
-copy_obj = cp -f $(OBJS-y) $(RTE_OUTPUT)/build/lib;
-lib_dir = [ -d $(RTE_OUTPUT)/lib ] || mkdir -p $(RTE_OUTPUT)/lib;
 -include .$(LIB).cmd
 
 #
 # Archive objects in .a file if needed
 #
-ifeq ($(RTE_BUILD_SHARED_LIB),y)
+ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
 $(LIB): $(OBJS-y) $(DEP_$(LIB)) FORCE
+ifeq ($(LIBABIVER),)
+       @echo "Must Specify a $(LIB) ABI version"
+       @false
+endif
        @[ -d $(dir $@) ] || mkdir -p $(dir $@)
        $(if $(D),\
                @echo -n "$< -> $@ " ; \
@@ -120,14 +130,7 @@ $(LIB): $(OBJS-y) $(DEP_$(LIB)) FORCE
                $(depfile_missing),\
                $(depfile_newer)),\
                $(O_TO_S_DO))
-ifeq ($(RTE_BUILD_COMBINE_LIBS),y)
-       $(if $(or \
-        $(file_missing),\
-        $(call cmdline_changed,$(O_TO_C_STR)),\
-        $(depfile_missing),\
-        $(depfile_newer)),\
-        $(O_TO_C_DO))
-endif
+
 else
 $(LIB): $(OBJS-y) $(DEP_$(LIB)) FORCE
        @[ -d $(dir $@) ] || mkdir -p $(dir $@)
@@ -143,14 +146,6 @@ $(LIB): $(OBJS-y) $(DEP_$(LIB)) FORCE
            $(depfile_missing),\
            $(depfile_newer)),\
            $(O_TO_A_DO))
-ifeq ($(RTE_BUILD_COMBINE_LIBS),y)
-       $(if $(or \
-        $(file_missing),\
-        $(call cmdline_changed,$(O_TO_C_STR)),\
-        $(depfile_missing),\
-        $(depfile_newer)),\
-        $(O_TO_C_DO))
-endif
 endif
 
 #
@@ -160,6 +155,13 @@ $(RTE_OUTPUT)/lib/$(LIB): $(LIB)
        @echo "  INSTALL-LIB $(LIB)"
        @[ -d $(RTE_OUTPUT)/lib ] || mkdir -p $(RTE_OUTPUT)/lib
        $(Q)cp -f $(LIB) $(RTE_OUTPUT)/lib
+ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
+ifeq ($(CONFIG_RTE_NEXT_ABI)$(EXTLIB_BUILD),yn)
+       $(Q)ln -s -f $< $(basename $(basename $@))
+else
+       $(Q)ln -s -f $< $(basename $@)
+endif
+endif
 
 #
 # Clean all generated files