[dpdk-dev] [PATCH v2] mk: fix ABI versioning compile error for combined shared library

[Ferruh Yigit]

Fixes following error:
  LD libdpdk.so
  /usr/bin/ld: /root/dpdk/build/lib/libdpdk.so: version node not found
  for symbol <function>@DPDK_x.y

Defines version symbols in a fixed path libdpdk.map file and this
value hardcoded into makefile

Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
---
 drivers/net/Makefile |  3 +++
 lib/Makefile         |  3 +++
 lib/libdpdk.map      | 12 ++++++++++++
 mk/rte.sdkbuild.mk   |  2 +-
 mk/rte.sharelib.mk   |  1 +
 5 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 lib/libdpdk.map

diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 6da1ce2..d30018c 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -50,5 +50,8 @@ DIRS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += virtio
 DIRS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD) += vmxnet3
 DIRS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += xenvirt

+ifeq ($(COMBINED_BUILD),1)
 include $(RTE_SDK)/mk/rte.sharelib.mk
+endif
+
 include $(RTE_SDK)/mk/rte.subdir.mk
diff --git a/lib/Makefile b/lib/Makefile
index 9727b83..33d76a6 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -62,5 +62,8 @@ DIRS-$(CONFIG_RTE_LIBRTE_KNI) += librte_kni
 DIRS-$(CONFIG_RTE_LIBRTE_IVSHMEM) += librte_ivshmem
 endif

+ifeq ($(COMBINED_BUILD),1)
 include $(RTE_SDK)/mk/rte.sharelib.mk
+endif
+
 include $(RTE_SDK)/mk/rte.subdir.mk
diff --git a/lib/libdpdk.map b/lib/libdpdk.map
new file mode 100644
index 0000000..3988a3f
--- /dev/null
+++ b/lib/libdpdk.map
@@ -0,0 +1,12 @@
+DPDK_2.0 {
+
+};
+
+DPDK_2.1 {
+
+} DPDK_2.0;
+
+DPDK_2.2 {
+
+} DPDK_2.1;
+
diff --git a/mk/rte.sdkbuild.mk b/mk/rte.sdkbuild.mk
index 38ec7bd..d4e3abf 100644
--- a/mk/rte.sdkbuild.mk
+++ b/mk/rte.sdkbuild.mk
@@ -94,7 +94,7 @@ $(ROOTDIRS-y):
        @echo "== Build $@"
        $(Q)$(MAKE) S=$@ -f $(RTE_SRCDIR)/$@/Makefile -C $(BUILDDIR)/$@ all
        @if [ $@ = drivers -a $(CONFIG_RTE_BUILD_COMBINE_LIBS) = y ]; then \
-               $(MAKE) -f $(RTE_SDK)/lib/Makefile sharelib; \
+               COMBINED_BUILD=1 $(MAKE) -f $(RTE_SDK)/lib/Makefile sharelib; \
        fi

 %_clean:
diff --git a/mk/rte.sharelib.mk b/mk/rte.sharelib.mk
index 7bb7219..1f71fcb 100644
--- a/mk/rte.sharelib.mk
+++ b/mk/rte.sharelib.mk
@@ -40,6 +40,7 @@ LIB_ONE := lib$(RTE_LIBNAME).so
 else
 LIB_ONE := lib$(RTE_LIBNAME).a
 endif
+CPU_LDFLAGS += --version-script=$(SRCDIR)/lib/libdpdk.map
 endif

 .PHONY:sharelib
-- 
1.9.3