![]() For example, for the arm64 architecture, this variable is defined in arm64/kernel/setup. One file for each of the above architectures defines a cpuinfo_op variable of type seq_operations. The links in the rest of this post are cross referenced links, so you may not need to download the sources. The arch/ sub directory has architecture specific code and in all you will see 31 subdirectories in this sub directory: alpha, arc, arm, arm64, and others. The post is admittedly half baked and may not satisfy all your queries, but I think I am on the right track.ĭownload the Linux kernel sources (tarball from or clone it from ). However, I will share with you how to find out the information you may find in this file on different architectures. I won’t attempt to make any guesses to why they are different. Hence, it is necessary that whatever tool/script one writes to read and use the data from this file and hopes it to work across architectures should consider these differences. If you compare the contents of your Intel/AMD desktop or laptop with the above, you will know what I am talking about. However, one problem with dealing with this file is that depending on the hardware architecture, the information varies – both in their presentation format and the information available. These are useful information and for projects such as lshw and Beaker, quite vital too. ![]() Being plain text files, you can write shell scripts or some other programming language (see my earlier article using CPython on this topic) to parse this information and mine the data you are looking for. cat /proc/cpuinfo Processor : ARMv6-compatible processor rev 7 (v6l) BogoMIPS. For example, here is what it looks like on my $ cat /proc/cpuinfoįeatures : swp half thumb fastmult vfp edsp neon vfpv3 tlsĭepending on what you are looking for, these are all useful information. Receivers that meet the definition of a firearm must have markings. ![]() Sprintf(str, "X", varECX) //i.e.The /proc/cpuinfo file contains runtime information about the processors on your Linux computer (including your Android phone). Sprintf(PSN, "%s-%C%C%C%C-%C%C%C%C", PSN, str, str, str, str, str, str, str, str) ?x=3 gives least significant 64 bits in edx and ecx This serial number is unique to every processor and is used by programs to identify individual processors. Sprintf(PSN, "%C%C%C%C-%C%C%C%C", str, str, str, str, str, str, str, str) Intel’s processors have a unique serial number called pn, which is short for Processor Serial Number (PSN). ?x=1 gives most significant 32 bits in eax String vendorName = (it = vendorIdToName.end()) ? "Unknown" : it->second Ĭout << "Max instruction ID: " << eax << endl Ĭout << "Vendor ID: " << vendorIDString << endl Ĭout << "Vendor name: " << vendorName << endl String vendorIDString = vendorID.toString() Īuto it = vendorIdToName.find(vendorIDString) VendorIdToName = "National Semiconductor" _get_cpuid(level,
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