mk: fix link of combined shared library using CC

If we set EXTRA_CFLAGS=-O0, build fails with following error:
	/usr/bin/ld: test: hidden symbol `mknod' in /usr/lib64/libc_nonshared.a(mknod.oS) is referenced by DSO

Fix: link combined shared lib using CC if LINK_USING_CC is enabled.

Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
[Thomas: remove change to rte.lib.mk]
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>

diff --git a/mk/rte.sharelib.mk b/mk/rte.sharelib.mk
index df6c268..d0ec12a 100644 (file)
--- a/mk/rte.sharelib.mk
+++ b/mk/rte.sharelib.mk
@@ -29,6 +29,8 @@
 #   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 #   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+include $(RTE_SDK)/mk/internal/rte.build-pre.mk
+
 # VPATH contains at least SRCDIR
 VPATH += $(SRCDIR)
 
@@ -45,7 +47,15 @@ sharelib: $(LIB_ONE) FORCE
 
 OBJS = $(wildcard $(RTE_OUTPUT)/build/lib/*.o)
 
-O_TO_S = $(LD) $(LDFLAGS) -shared $(OBJS) -o $(RTE_OUTPUT)/lib/$(LIB_ONE)
+ifeq ($(LINK_USING_CC),1)
+# Override the definition of LD here, since we're linking with CC
+LD := $(CC) $(CPU_CFLAGS)
+LD_MULDEFS := $(call linkerprefix,-z$(comma)muldefs)
+CPU_LDFLAGS := $(call linkerprefix,$(CPU_LDFLAGS))
+endif
+
+O_TO_S = $(LD) $(CPU_LDFLAGS) $(LD_MULDEFS) -shared $(OBJS) \
+       -o $(RTE_OUTPUT)/lib/$(LIB_ONE)
 O_TO_S_STR = $(subst ','\'',$(O_TO_S)) #'# fix syntax highlight
 O_TO_S_DISP = $(if $(V),"$(O_TO_S_STR)","  LD $(@)")
 O_TO_S_CMD = "cmd_$@ = $(O_TO_S_STR)"