![]() ![]() The kernel module update package ( McAfeeESP-KernelModule-10.7.X-xxx-Release-ePO) provides support for new kernel updates without requiring you to upgrade the ENSL product.ĮNSL 10.7.5.x (or later) is deployed and a new kernel module update package is available for that versionĮNSL 10.7.5.x (or later) is checked-in and a new kernel module update package is available for that version This article describes how to update an existing build package with support for more kernel modules. "module.markers" : This lists out all the markers placed in the your module code.The normal installation and upgrade procedures are contained in the Endpoint Security for Linux Threat Prevention Installation Guide. "modules.order" : In case you are compiling multiple modules together, it will list out the order in which the compilation and creation of. "module.symvers": This will contain any of external symbols that is defined in your module and hence not present in the module.symvers of the kernel. The modulename.o and the are linked together by modpost in the next stage to create the "modulename.ko". The is a file that basically contains the information about the module (Version information etc). ![]() If the files are present the source file is compiled to a "modulname.o", and "" is created which is compiled to "". In case these files are not persent in the directory passed to "M", the compiling will stop with an error. Now the kbuild system know that it has to build "modulename.ko" and will look for "modulename.c" or "modulename.S" for the source. The second pass of the makefile is done by the kbuild system which reads only the assignment of "obj-m := modulename.o" from the makefile. The default working is also the same and hence should work even if it is not passed. The target "modules" is passed to mean that modules located in the currnet directory have to be compiled. ![]() The M option tells the kernel makefile that we are building external kernel modules and the same are present at the location passed as an absolute path after " M". Here we call make again, but with the option -C to tell "make" to use the makefile present in the directory being passed as argument after -C, which is the path to kernel makefile. The default target gets called if we do not mention any target in the command line. Note : uname -r retunrs the kernel version. As we are not sure about the location of the kernel source tree location the first "if" condition turns out to be false and in the else part we set the KERNELDIR to the path to the makefile of the kernel which is by default present in the location /lib/modules/"kernel version"/build. Two passes are made of the above makefile, in the first pass we call make from the command line. ![]() Hence in the makefile that we write we will have to use the makefile that is present in the kernel source tree. The 2.6 kernels use a kbuild system to build the kernel modules and to compile an external module also the same has to be used. KERNELDIR ?= /lib/modules/$(shell uname -r)/build The makefile that is used to build kernel module generally looks a follows. Here is look in the steps involved in compilation of a kernel module, the journey from the. ![]()
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