2015-08-20 08:51, Simon Kagstrom: > /proc/version_signature is the version for the host machine, but in > e.g., chroots, this does not necessarily match that DPDK is built > for. DPDK will then build for the wrong kernel version - that of the > server, and not that installed in the (build) chroot. > > The patch uses utsrelease.h from the kernel sources instead and fakes > the upload version. > > Tested on a server with Ubuntu 12.04, building in a chroot for Ubuntu > 14.04. [...] > --- a/lib/librte_eal/linuxapp/kni/Makefile > +++ b/lib/librte_eal/linuxapp/kni/Makefile > @@ -44,10 +44,10 @@ MODULE_CFLAGS += -I$(RTE_OUTPUT)/include > -I$(SRCDIR)/ethtool/ixgbe -I$(SRCDIR)/e > MODULE_CFLAGS += -include $(RTE_OUTPUT)/include/rte_config.h > MODULE_CFLAGS += -Wall -Werror > > -ifeq ($(shell test -f /proc/version_signature && lsb_release -si > 2>/dev/null),Ubuntu) > +ifeq ($(shell lsb_release -si 2>/dev/null),Ubuntu) > MODULE_CFLAGS += -DUBUNTU_RELEASE_CODE=$(shell lsb_release -sr | tr -d .) > -UBUNTU_KERNEL_CODE := $(shell cut -d' ' -f2 /proc/version_signature | \ > - cut -d'~' -f1 | cut -d- -f1,2 | tr .- $(comma)) > +UBUNTU_KERNEL_CODE := $(shell echo `grep UTS_RELEASE > $(RTE_KERNELDIR)/include/generated/utsrelease.h \ > + | cut -d '"' -f2 | cut -d- -f1,2 | tr .- $(comma)`,1) > MODULE_CFLAGS += > -D"UBUNTU_KERNEL_CODE=UBUNTU_KERNEL_VERSION($(UBUNTU_KERNEL_CODE))" > endif
Yes we must check RTE_KERNELDIR instead of the running kernel. But it is still checking lsb_release for the running system. It seems not consistent.
