embedded systems. 2, ARM-NONE-LINUX-GNUEABI-GCC
(ARM architecture, no vendor, creates binaries that run on the Linux operating system, and uses the GNU Eabi)
Mainly used in the Linux system based on ARM architecture, can be used to compile ARM architecture u-boot, Linux kernel, Linux application and so on. Arm-none-linux-gnueabi is based on GCC, using the GLIBC library, after the Codesourcery company optimized the launch of the compiler. The Arm-no
April 20, 2004 the latest version of the GCC compiler 3.4.0 released. At the moment, GCC can be used to compile programs in C + +, FORTRAN, JAVA, OBJC, and Ada languages, and you can choose to install supported languages as needed. GCC 3.4.0 supports the C + + standard better than previous versions. This article introduces the installation process of GCC with the installation of GCC3.4.0 on Redhat Linux as an example.
Prior to installation, the syste
(1) Introduction to cross-Compiler
A compilation program running in a computer environment can compile the code running in another environment. This compilation process is called cross-compilation. to put it simply, it is to generate executable code on another platform.(2) architecture and Operating System
(1) common architectures include arm and x86 architectures.
(2) common operating systems include Linux and Windows.
(3) the same architecture can r
I. keywords and operators
1. _ Align (n):Indicates that the CompilernByte boundary alignmentVariable.
For local variables,nValues can be 1, 2, 4, or 8.
For global variables,nIt can have any value of 0x80000000 power up to 2.
__alignKeyword close to variable nameFrontPlace.
Note:
Only alignment can be performed. That is to say, the object of two bytes can be aligned by four bytes, but the object of four bytes cannot be aligned by two bytes.
Example:
_ Align (8) Char buffer [128];/* buffer star
Programming | Compiling JAVAC-----Java programming language compiler
* Summary
* Description
* Lookup Type
* File List
* Option
* Example
* Please refer to
synopsis[Summary]
javac [Options] [SourceFiles] [@files]
Oldjavac [Options] [soucefiles] [@files]
parameter suspicious bit arbitrary order
Options
Command line Options
SourceFiles
one or more of the original files
@files
one or more files with a list of original
Arm Cross compiler brief introduction
One, cross compiler
naming rules:
The naming convention for the cross-compilation toolchain is: Arch [-vendor] [-os] [-(GNU) Eabi] Arch -architecture, such as Arm,mips vendor -toolchain provider OS -target operation System Eabi -Embedded Application Binary interface (Embedded application binary Interface)
Depending on whether the operating system is supported or not,
When writing code, we often mention two principles:
1. the method should be as short as possible, and the large method should be divided into small ones;
2. Do not reinvent the wheel.
When we emphasize these two principles, we often focus only on the Code concise, easy to maintain, and other factors that facilitate us. In fact, this can also greatly facilitate the Java compiler to optimize the code.
Java compiler
Computers do not understand high-level languages, and of course they cannot execute high-level languages directly. Computers can only understand machine language directly, so any language must be translated into machine language. Programs written in any programming language are ultimately executed by the machine code (01 sequence) of the underlying machine, whether it is a compiled or interpreted language. The source code for any high-level programming language program is a sequence of character
Problem: Define an empty type, which does not have any member variables or member functions, and does a sizeof operation on this type, the result is?The result is 1, because an instance of an empty type does not contain any information, and the result is 0 after the reason that sizeof evaluates, but when declaring any type of instance, the memory must occupy a certain amount of space, otherwise the instances cannot be used, and the compiler determines
The project developed in Eclipse has a JDK that can be configured in Java build path, and a Java compiler can be configured with compiler level, which is different, Java compiler The JDK version of level is the version you develop code in eclipse to give you an indication of the error and compile the Java file into a class file, and the version number in the buil
Microsoft VBScript Compiler error ' missing statement '
activeserverpages,asp0126 (0x80004005)--> cannot find the included fileMicrosoftoledbproviderforodbcdrivers (0X80040E21)-->sql statement error (data type mismatch or table name (field name) error or table is in edit state, or table does not exist in Conn Open database)Microsoftoledbproviderforodbcdrivers (0X80040E14)-->sql statement error (field name error, or data type mismatch)Microsoftoledbpr
The original text is renewed, the book is connected to ... Still refer to Http://code.angularjs.org/1.0.2/docs/guide/compiler
First, the overall
Angular's HTML compiler allows developers to customize new HTML syntax. compiler allows us to append behavior to arbitrary HTML elements or attributes, even to new HTML tags, attributes (such as
HTML has many predefi
"Write your own compiler, linker" Purchase URLThe paper came to the end of the light, I know this matter to preach.--Lu YouThe whole set of theories of compiling theory and technology occupies a very important position in the field of computer science, and learning it is very helpful to the program designers. We look at history will find that everyone praised the program Design Master is a master in the field of compilation, like the basic language of
Self-write compiler, linker URLThe paper came to the end of the light, I know this matter to preach.--Lu YouThe whole set of theories of compiling theory and technology occupies a very important position in the field of computer science, and learning it is very helpful to the program designers. We look at history will find that everyone praised the program Design Master is a master in the field of compilation, like the basic language of Bill Gates, Su
This is a creation in
Article, where the information may have evolved or changed.
OverviewNow the Go compiler is written in C, it's time to switch to go.BackgroundThe "GC" go tool chain comes from the tool chain of the Plan 9 compiler. The assembler, C compiler, and linker are basically unchanged. The Go Compiler
First, prefaceAs the Java compiler continues to evolve, it provides programmers with more and more "Honey" (Compiler Suger), which greatly facilitates the development of programs, such as the enhanced mode of foreach, automatic unboxing and boxing, and string connection operations ...These "honey" bring us a lot of convenience, but there are also some pitfalls.Second, automatic packing trapsFirst of all, le
string mechanism is more understanding.Unfortunately, this answer is not accurate enough. Or, there is no run-time calculation of B = "a" + "B"; This operation is actually run with only string B = "AB";The 3 point of view is suitable for explaining the following situations:String a = "AB";String B = "AB"; System.out.println ((A = = b));If string b = "a" + "B" is executed at run time, then 3 of the view is unexplained. The two strings of the run time are added, resulting in the creation of a new
[Root@localhost one]# gcc--help
USAGE:GCC [options] File ...
Options:
-pass-exit-codes exit with highest error code from a phase
--help Display This information
--target-help Display Target specific command line options
--help={target|optimizers|warnings|params|[ ^]{joined|separate|undocumented}}[,...]
Display specific types of command line options
(Use '-V--help ' to display command line options of sub-processes)
--version Display Compiler version In
Today we are going to share some of the reverse compiler tools on Java, which sounds like a very high technical vocabulary, in layman's terms, it is a process of reverse analysis of the target executable program to get the original code. In particular, a programming language running on a virtual machine such as. NET and Java is easier to decompile to get the source code. Of course, there are also some business software that confuses its programs, whic
Compiled using the system's own build command
Later found that the Windows Drive development technology in the detailed explanation that the VC6 can be compiled, has been operating to the end, a compilation incredibly found no compile through, so in the online Google, found someone else's method, see the middle of the steps to find the problem came, the book is to take Win2K DDK do examples, But the DDK of the installed XP is compile has the problem, dizzy, the problem is where? That is, directo
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