[dpdk-dev,v2,2/6] mk: fix driver dependencies order for static application

Message ID 1465564749-1405-3-git-send-email-thomas.monjalon@6wind.com (mailing list archive)
State Accepted, archived
Headers

Commit Message

Thomas Monjalon June 10, 2016, 1:19 p.m. UTC
  On a linker command line, the dependencies must be declared after
the libraries using them.
It will avoid some issues when building an application with static
libraries and --as-needed option.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
---
 mk/rte.app.mk | 38 +++++++++++---------------------------
 1 file changed, 11 insertions(+), 27 deletions(-)
  

Comments

Ferruh Yigit June 10, 2016, 2:49 p.m. UTC | #1
On 6/10/2016 2:19 PM, Thomas Monjalon wrote:
> On a linker command line, the dependencies must be declared after
> the libraries using them.
> It will avoid some issues when building an application with static
> libraries and --as-needed option.
> 
> Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
> ---

Do we need this which driver used which library detail?

I think it is enough to move all external library dependencies to the
last in command line, without paying attention who use it, Linker will
handle the rest, if that library is not required it won't be linked against.
  
Thomas Monjalon June 10, 2016, 2:54 p.m. UTC | #2
2016-06-10 15:49, Ferruh Yigit:
> On 6/10/2016 2:19 PM, Thomas Monjalon wrote:
> > On a linker command line, the dependencies must be declared after
> > the libraries using them.
> > It will avoid some issues when building an application with static
> > libraries and --as-needed option.
> > 
> > Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
> > ---
> 
> Do we need this which driver used which library detail?
> 
> I think it is enough to move all external library dependencies to the
> last in command line, without paying attention who use it, Linker will
> handle the rest, if that library is not required it won't be linked against.

I prefer avoiding garbage and have a justification for dependencies.
  

Patch

diff --git a/mk/rte.app.mk b/mk/rte.app.mk
index 07be17c..8068e66 100644
--- a/mk/rte.app.mk
+++ b/mk/rte.app.mk
@@ -93,22 +93,6 @@  ifeq ($(CONFIG_RTE_LIBRTE_VHOST_USER),n)
 _LDLIBS-$(CONFIG_RTE_LIBRTE_VHOST)          += -lfuse
 endif
 _LDLIBS-$(CONFIG_RTE_PORT_PCAP)             += -lpcap
-_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_PCAP)       += -lpcap
-_LDLIBS-$(CONFIG_RTE_LIBRTE_BNX2X_PMD)      += -lz
-_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD)       += -libverbs
-_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX5_PMD)       += -libverbs
-_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SZEDATA2)   += -lsze2
-_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT)    += -lxenstore
-_LDLIBS-$(CONFIG_RTE_LIBRTE_MPIPE_PMD)      += -lgxio
-_LDLIBS-$(CONFIG_RTE_LIBRTE_NFP_PMD)        += -lm
-_LDLIBS-$(CONFIG_RTE_LIBRTE_QEDE_PMD)       += -lz
-# QAT / AESNI GCM PMDs are dependent on libcrypto (from openssl)
-# for calculating HMAC precomputes
-ifeq ($(CONFIG_RTE_LIBRTE_PMD_QAT),y)
-_LDLIBS-y                                   += -lcrypto
-else ifeq ($(CONFIG_RTE_LIBRTE_PMD_AESNI_GCM),y)
-_LDLIBS-y                                   += -lcrypto
-endif
 endif # !CONFIG_RTE_BUILD_SHARED_LIBS
 
 _LDLIBS-y += --start-group
@@ -124,13 +108,13 @@  _LDLIBS-$(CONFIG_RTE_LIBRTE_EAL)            += -lrte_eal
 _LDLIBS-$(CONFIG_RTE_LIBRTE_CMDLINE)        += -lrte_cmdline
 _LDLIBS-$(CONFIG_RTE_LIBRTE_CFGFILE)        += -lrte_cfgfile
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_BOND)       += -lrte_pmd_bond
-_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT)    += -lrte_pmd_xenvirt
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT)    += -lrte_pmd_xenvirt -lxenstore
 
 ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),n)
 # plugins (link only if static libraries)
 
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET)  += -lrte_pmd_af_packet
-_LDLIBS-$(CONFIG_RTE_LIBRTE_BNX2X_PMD)      += -lrte_pmd_bnx2x
+_LDLIBS-$(CONFIG_RTE_LIBRTE_BNX2X_PMD)      += -lrte_pmd_bnx2x -lz
 _LDLIBS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD)      += -lrte_pmd_cxgbe
 _LDLIBS-$(CONFIG_RTE_LIBRTE_E1000_PMD)      += -lrte_pmd_e1000
 _LDLIBS-$(CONFIG_RTE_LIBRTE_ENA_PMD)        += -lrte_pmd_ena
@@ -138,15 +122,15 @@  _LDLIBS-$(CONFIG_RTE_LIBRTE_ENIC_PMD)       += -lrte_pmd_enic
 _LDLIBS-$(CONFIG_RTE_LIBRTE_FM10K_PMD)      += -lrte_pmd_fm10k
 _LDLIBS-$(CONFIG_RTE_LIBRTE_I40E_PMD)       += -lrte_pmd_i40e
 _LDLIBS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD)      += -lrte_pmd_ixgbe
-_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD)       += -lrte_pmd_mlx4
-_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX5_PMD)       += -lrte_pmd_mlx5
-_LDLIBS-$(CONFIG_RTE_LIBRTE_MPIPE_PMD)      += -lrte_pmd_mpipe
-_LDLIBS-$(CONFIG_RTE_LIBRTE_NFP_PMD)        += -lrte_pmd_nfp
+_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD)       += -lrte_pmd_mlx4 -libverbs
+_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX5_PMD)       += -lrte_pmd_mlx5 -libverbs
+_LDLIBS-$(CONFIG_RTE_LIBRTE_MPIPE_PMD)      += -lrte_pmd_mpipe -lgxio
+_LDLIBS-$(CONFIG_RTE_LIBRTE_NFP_PMD)        += -lrte_pmd_nfp -lm
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_NULL)       += -lrte_pmd_null
-_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_PCAP)       += -lrte_pmd_pcap
-_LDLIBS-$(CONFIG_RTE_LIBRTE_QEDE_PMD)       += -lrte_pmd_qede
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_PCAP)       += -lrte_pmd_pcap -lpcap
+_LDLIBS-$(CONFIG_RTE_LIBRTE_QEDE_PMD)       += -lrte_pmd_qede -lz
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_RING)       += -lrte_pmd_ring
-_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SZEDATA2)   += -lrte_pmd_szedata2
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SZEDATA2)   += -lrte_pmd_szedata2 -lsze2
 _LDLIBS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD)     += -lrte_pmd_virtio
 ifeq ($(CONFIG_RTE_LIBRTE_VHOST),y)
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_VHOST)      += -lrte_pmd_vhost
@@ -156,10 +140,10 @@  _LDLIBS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD)    += -lrte_pmd_vmxnet3_uio
 ifeq ($(CONFIG_RTE_LIBRTE_CRYPTODEV),y)
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AESNI_MB)   += -lrte_pmd_aesni_mb
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AESNI_MB)   += -L$(AESNI_MULTI_BUFFER_LIB_PATH) -lIPSec_MB
-_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AESNI_GCM)  += -lrte_pmd_aesni_gcm
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AESNI_GCM)  += -lrte_pmd_aesni_gcm -lcrypto
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AESNI_GCM)  += -L$(AESNI_MULTI_BUFFER_LIB_PATH) -lIPSec_MB
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_NULL_CRYPTO) += -lrte_pmd_null_crypto
-_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_QAT)        += -lrte_pmd_qat
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_QAT)        += -lrte_pmd_qat -lcrypto
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SNOW3G)     += -lrte_pmd_snow3g
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SNOW3G)     += -L$(LIBSSO_PATH)/build -lsso
 endif # CONFIG_RTE_LIBRTE_CRYPTODEV