Tag:Instruction set

  • Undefined symbols for architecture arm64:

    Time:2020-11-30

    Undefined symbols for architecture arm64:   “_Decoder_Interface_init”, referenced from:       EM_DecodeAMRFileToWAVEFile(char const*, char const*) in amrFileCodec.o   “_Decoder_Interface_Decode”, referenced from:       EM_DecodeAMRFileToWAVEFile(char const*, char const*) in amrFileCodec.o   “_Decoder_Interface_exit”, referenced from:       EM_DecodeAMRFileToWAVEFile(char const*, char const*) in amrFileCodec.o   “_Encoder_Interface_init”, referenced from:       EM_EncodeWAVEFileToAMRFile(char const*, char const*, […]

  • This e-book is the only way to break down the Java virtual machine

    Time:2020-10-15

    I collated advanced Java materials free of charge, covering Java, redis, mongodb, mysql, zookeeper, spring cloud, Dubbo high concurrency distributed course, a total of 30g, you need to get it yourself.Portal:https://mp.weixin.qq.com/s/osB-BOl6W-ZLTSttTkqMPQ preface The charm of computer art lies in its preciseness and complexity. Whether it is a stock exchange or a chess game, all the […]

  • Upgrade xcode12 encountered no architectures to compile for (only_ ACTIVE_ ARCH=YES

    Time:2020-10-7

    Today, after upgrading Xcode, the simulator reported an error, This is because the emulator lacks x86_ 64 instruction set, we need to modify valid in Xcode targets_ Arch, add the instruction set you are missing, as shown in the figure: You need to add x86 after debug_ 64, after running again

  • The first and most comprehensive overview of mongodb 3.6

    Time:2020-9-24

    Mongodb 3.6 take a look at part 1 The exciting moment finally came. After a mongodb listing day, mongodb finally released mongodb 3.6 RC3. It took the whole day to read release notes, and tried most of the features, and there were also pits. Interested partners can see it first. https://docs.mongodb.com/master/release-notes/3.6/ Today’s article, will bring […]

  • Do arm linux cross compilation once

    Time:2020-5-29

    Cross compilation Why cross compile In fact, cross compilation is relative to native build. I believe that when you first learn C / C + + languages, you write programs on the computer, then compile and generate executable files on the computer, and finally run them on the computer. The whole process of editing, compiling […]

  • VIM enables programming small operation 6 to fly

    Time:2020-5-27

    VIM is a powerful editor. Students who have done Linux C development should be very familiar with it. Java developers often use VIM to modify and deploy configuration files in Linux. In this paper, the common operations in VIM are sorted out for your reference Enter VIM 1. Linux command line / git bash command […]

  • Processor architecture

    Time:2020-5-6

    In the front, we mainly studied the machine level representation of programs, the representation and processing of information, and talked about the organization of assembly instructions and data, partial to the software part. After that, it mainly studies processor architecture, memory hierarchy, link, exception, virtual memory, program optimization and other parts, partial hardware part. Processor […]

  • Android Native Hook

    Time:2020-4-19

    Hook means to intercept a process’s call to an API function, so that the execution flow of the API turns to the code snippet we implement, so as to realize the functions we need. The functions here can be monitoring and repairing system vulnerabilities, hijacking or other malicious behaviors. I believe that many novices will […]

  • Nginx common instructions

    Time:2020-3-11

    Recently, nginx is often used, so I want to take a systematic look at the commonly used instructions HttpCore instruction set server_name Meaning: set the name of the virtual server. The first name will become the name of the primary server. The server name can use * instead of the first or last part of […]

  • JVM code cache

    Time:2020-2-21

    When the JVM compiles the code, it keeps the compiled assembly language instruction set in the code cache. The size of the code cache is fixed, so once it’s full, the JVM can’t compile any more code. Obviously, if the code cache is too small, there may be problems. Some of the hotspots were compiled, […]

  • Using makefile to build instruction set

    Time:2020-2-4

    Using makefile to build instruction set makeIs a long-standing construction tool, through configurationMakefileThe file can easily use your own customized instruction set, and has nothing to do with the specific programming language.For example, configure the followingMakefile : run dev: NODE_ENV=development nodemon server.js So when you execute on the command linemake run devIt’s actually going to […]