[dpdk-dev] section mismatch warnings

Michael Hu (NSBU) humichael at vmware.com
Mon Oct 6 20:42:04 CEST 2014


Hi Everyone,

When we enable kernel config CONFIG_DEBUG_SECTION_MISMATCH=y and compile DPDK 1.7 with 3.14.17 kernel + gcc 4.8.2, we got lots of warnings like these.
Do we have plan to fix them? If so, please advise on which version. Thanks.



== Build lib/librte_eal/linuxapp/kni
cut: /proc/version_signature: No such file or directory
  LD      /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/igb_uio/built-in.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.o
  Building modules, stage 2.
  MODPOST 1 modules
WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.o(.data+0x20): Section mismatch in reference from the variable igbuio_pci_driver to the function .text:igbuio_pci_probe()

WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.o(.data+0x28): Section mismatch in reference from the variable igbuio_pci_driver to the function .text:igbuio_pci_remove()

WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.o(.data+0x130): Section mismatch in reference from the variable dev_attr_max_vfs to the function .text:show_max_vfs()

WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.o(.data+0x138): Section mismatch in reference from the variable dev_attr_max_vfs to the function .text:store_max_vfs()

  CC      /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.mod.o
  LD [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.ko
INSTALL-MODULE igb_uio.ko

  LD      /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/built-in.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/ixgbe_main.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/ixgbe_api.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/ixgbe_common.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/ixgbe_ethtool.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/ixgbe_82599.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/ixgbe_82598.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/ixgbe_x540.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/ixgbe_phy.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/kcompat.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/e1000_82575.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/e1000_i210.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/e1000_api.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/e1000_mac.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/e1000_manage.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/e1000_mbx.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/e1000_nvm.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/e1000_phy.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/igb_ethtool.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/igb_hwmon.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/igb_main.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/igb_debugfs.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/igb_param.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/igb_procfs.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/igb_vmdq.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/kni_misc.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/kni_net.o
  CC [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/kni_ethtool.o
  LD [M]  /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/rte_kni.o
WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/rte_kni.o(.data+0x20): Section mismatch in reference from the variable ixgbe_ethtool_ops to the function .text:ixgbe_get_settings()

WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/rte_kni.o(.data+0x28): Section mismatch in reference from the variable ixgbe_ethtool_ops to the function .text:ixgbe_set_settings()

WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/rte_kni.o(.data+0x30): Section mismatch in reference from the variable ixgbe_ethtool_ops to the function .text:ixgbe_get_drvinfo()

WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/rte_kni.o(.data+0x38): Section mismatch in reference from the variable ixgbe_ethtool_ops to the function .text:ixgbe_get_regs_len()

WARNING: /git/Pktgen-DPDK/dpdk/build/build/lib/librte_eal/linuxapp/kni/rte_kni.o(.data+0x40): Section mismatch in reference from the variable ixgbe_ethtool_ops to the function .text:ixgbe_get_regs()

Thanks,
Michael




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