Problema ao tentar compilar cruzadamente um driver ethernet em um kernel Linux antigo

Question

Atualmente, estou tentando compilar um driver de rede contra um kernel antigo do Linux, na versão 2.6.27.7, mas a compilação falha e imprime:

make[1]: entering directory « /home/johann/Desktop/linux-2.6.27.7 »
Building modules, stage 2.
MODPOST 0 modules
make[1]: leaving directory « /home/johann/Desktop/linux-2.6.27.7 »

O comando que eu executei para obter isso foi retirado do readme encontrado com as fontes:

make KSRC=<source> KDIR=<build>

Não sou especialista em makefiles, mas acho que há algo errado com o fornecido pela fonte do driver.

Veja como fica:

#
# Makefile to build the be2net network driver
#

# find a source path that exists among the possible paths
ver = $(shell uname -r)
paths := /lib/modules/$(ver)/source /lib/modules/$(ver)/build
exists = $(shell [ -e $(path)/include/linux ] && echo $(path))
paths := $(foreach path, $(paths), $(exists))
ifeq (,$(KSRC))
    KSRC := $(firstword $(paths))
endif

# ************** Header checks ********************
ifneq (,$(shell grep -o alloc_etherdev_mqs $(KSRC)/include/linux/etherdevice.h))
    EXTRA_CFLAGS += -DALLOC_ETHDEV_MQS_defined
endif

ifneq (,$(shell grep -o alloc_etherdev_mq $(KSRC)/include/linux/etherdevice.h))
    EXTRA_CFLAGS += -DALLOC_ETHDEV_MQ_defined
endif

ifneq (,$(shell grep -o netif_set_real_num_rx_queues $(KSRC)/include/linux/netdevice.h))
    EXTRA_CFLAGS += -DNETIF_SET_REAL_NUM_RX_QS_defined
endif

ifneq (,$(shell grep -o PCI_DEV_FLAGS_ASSIGNED $(KSRC)/include/linux/pci.h))
    EXTRA_CFLAGS += -DPCI_FLAGS_ASSIGNED_defined
endif

ifneq (,$(shell grep -o skb_frag_set_page $(KSRC)/include/linux/skbuff.h))
    EXTRA_CFLAGS += -DSKB_FRAG_API_defined
endif

ifneq (,$(shell grep -o skb_frag_size $(KSRC)/include/linux/skbuff.h))
    EXTRA_CFLAGS += -DSKB_FRAG_SIZE_defined
endif

ifneq (,$(shell grep -o netdev_alloc_skb_ip_align $(KSRC)/include/linux/skbuff.h))
    EXTRA_CFLAGS += -DALLOC_SKB_IP_ALIGN_defined
endif

ifneq (,$(shell grep -o skb_record_rx_queue $(KSRC)/include/linux/skbuff.h))
    EXTRA_CFLAGS += -DSKB_RECORD_RX_QUEUE_defined
endif

ifneq (,$(shell grep -o rxhash $(KSRC)/include/linux/skbuff.h))
    EXTRA_CFLAGS += -DRXHASH_defined
endif

#GRO is usable only when full implementation is available
ifneq (,$(shell grep -o napi_get_frags $(KSRC)/include/linux/netdevice.h))
    EXTRA_CFLAGS += -DGRO_defined
endif

ifneq (,$(shell grep -o netdev_alloc_skb $(KSRC)/include/linux/skbuff.h))
    EXTRA_CFLAGS += -DALLOC_SKB_defined
endif

ifneq (,$(shell grep -o dev_mc_list $(KSRC)/include/linux/netdevice.h))
    EXTRA_CFLAGS += -DDEV_MC_LIST_defined
endif

ifneq (,$(shell grep -o pcie_set_readrq $(KSRC)/include/linux/pci.h))
    EXTRA_CFLAGS += -DPCIE_SET_READRQ_defined
endif

ifneq (,$(shell grep -so vlan_group_set_device $(KSRC)/include/linux/if_vlan.h $(KSRC)/net/8021q/vlan.h))
    EXTRA_CFLAGS += -DVLAN_GRP_SET_DEV_defined
endif

ifneq (,$(shell grep -o "struct vlan_group" $(KSRC)/include/linux/if_vlan.h))
    EXTRA_CFLAGS += -DVLAN_GRP_defined
endif

ifeq (,$(shell grep -o "vlan_hwaccel_receive_skb" $(KSRC)/include/linux/if_vlan.h))
    EXTRA_CFLAGS += -DUSE_NEW_VLAN_MODEL
endif

ifneq (,$(shell grep -o ndo_set_vf_mac $(KSRC)/include/linux/netdevice.h))
    EXTRA_CFLAGS += -DNDO_VF_CFG_defined
endif

ifneq (,$(shell grep -o ndo_set_features $(KSRC)/include/linux/netdevice.h))
    EXTRA_CFLAGS += -DNDO_SET_FEATURES_defined
endif

ifneq (,$(shell grep -so "ethtool_cmd_speed_set" $(KSRC)/include/linux/ethtool.h \
                        $(KSRC)/include/uapi/linux/ethtool.h))
    EXTRA_CFLAGS += -DETHTOOL_CMD_SPEED_SET_defined
endif

ifneq (,$(shell grep -so "ethtool_cmd_speed" $(KSRC)/include/linux/ethtool.h \
                    $(KSRC)/include/uapi/linux/ethtool.h))
    EXTRA_CFLAGS += -DETHTOOL_CMD_SPEED_defined
endif

ifneq (,$(shell grep -o "ethtool_phys_id_state" $(KSRC)/include/linux/ethtool.h))
    EXTRA_CFLAGS += -DPHYS_ID_STATE_defined
endif

ifneq (,$(shell grep -o "flash_device" $(KSRC)/include/linux/ethtool.h))
    EXTRA_CFLAGS += -DETHTOOL_FLASH_defined
endif

ifneq (,$(shell grep -o "get_sset_count" $(KSRC)/include/linux/ethtool.h))
    EXTRA_CFLAGS += -DETHTOOL_SSET_COUNT_defined
endif

ifneq (,$(shell grep -o "set_dump" $(KSRC)/include/linux/ethtool.h))
    EXTRA_CFLAGS += -DETHTOOL_SET_DUMP_defined
endif

ifneq (,$(shell grep -o "ethtool_ops_ext" $(KSRC)/include/linux/ethtool.h))
    EXTRA_CFLAGS += -DETHTOOL_OPS_EXT_defined
endif

ifneq (,$(shell grep -o "pci_enable_pcie_error_reporting" $(KSRC)/include/linux/aer.h))
    EXTRA_CFLAGS += -DAER_REPORTING_defined
endif

ifneq (,$(shell grep -o "pci_physfn" $(KSRC)/include/linux/pci.h))
    EXTRA_CFLAGS += -DPCI_PHYSFN_defined
endif

ifneq (,$(shell grep -o "set_rxnfc" $(KSRC)/include/linux/ethtool.h))
    EXTRA_CFLAGS += -DETHTOOL_RXNFC_OPS_defined
endif

ifneq (,$(shell grep -o ndo_get_stats64 $(KSRC)/include/linux/netdevice.h))
    EXTRA_CFLAGS += -DNDO_GET_STATS64_defined
endif

ifneq (,$(shell grep -o txq_trans_update $(KSRC)/include/linux/netdevice.h))
    EXTRA_CFLAGS += -DTXQ_TRANS_UPDATE_defined
endif
# ************* End header checks *****************

# ************* Targets ***************************
ifeq ($(KERNELRELEASE),)
ifeq ($(KDIR),)
    KDIR ?= /lib/modules/'uname -r'/build
endif   
default:
    @$(MAKE) -C$(KDIR) M=$$PWD
clean:
    @$(MAKE) -C$(KDIR) M=$$PWD clean
else
obj-$(CONFIG_BE2NET) += be2net.o
be2net-y :=  be_main.o be_cmds.o be_ethtool.o be_compat.o be_misc.o inet_lro.o
endif
# ************* End Targets ************************

Eu não vi nenhuma variável $ (CONFIG_BE2NET) declarada antes de seu uso, por exemplo.

Estou ciente de que é um problema específico ... Na verdade, comecei a aprender como produzir makefile para me ajudar a entender isso, mas qualquer ajuda seria muito apreciada:)

    

Answer 1

Uma solução possível é substituir obj - $ (CONFIG_BE2NET) + = be2net.o com obj-m + = be2net.o

    

Answer 2

mkdir /usr/src <--This directory may already exists
cd usr/src
wget https://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.27.7.tar.gz 
tar -xvf linux-2.6.27.7.tar.gz 
ln -s /usr/src/linux-2.6.27.7 /usr/src/linux
cd /usr/src/linux
tar -xvf <nameofdriverdownload>.tar.gz <--If all goes well, this should inject the driver you downloaded into the kernel source 
make menuconfig <-- Select Desired options Here
make install
make modules_install
make initrd

Eu preciso saber o nome do motorista e de onde você tirou essa resposta.