链接器和加载器的区别

在程序的执行过程中，主要的作用是由两个称为Linker和Loader 的实用程序发挥作用。

1.链接器：
链接器是一种特殊的程序，它将编译器/汇编器生成的目标文件和其他代码段组合起来以生成可执行文件。 .exe 扩展名。在目标文件中，链接器搜索并附加执行文件所需的所有库。它调节将保存来自每个模块的代码的内存空间。它还合并两个或多个单独的目标程序并在它们之间建立链接。通常，链接器有两种类型：

1. Linkage Editor
2. Dynamic Linker 

2. 装载机：
加载器是一种特殊的程序，它从链接器获取目标代码的输入，将其加载到主内存中，并准备好这些代码供计算机执行。 Loader 为程序分配内存空间。即使它解决了对象之间的符号引用。它负责在操作系统中加载程序和库。嵌入式计算机系统没有加载器。其中，代码通过 ROM 执行。有以下几种加载方案：

1. Absolute Loaders
2. Reloacting Loaders
3. Direct Linking Loaders
4. Bootstrap Loaders

链接器和加载器的区别：

S.No.	LINKER	LOADER
1	The main function of Linker is to generate executable files.	Whereas main objective of Loader is to load executable files to main memory.
2	The linker takes input of object code generated by compiler/assembler.	And the loader takes input of executable files generated by linker.
3	Linking can be defined as process of combining various pieces of codes and source code to obtain executable code.	Loading can be defined as process of loading executable codes to main memory for further execution.
4	Linkers are of 2 types: Linkage Editor and Dynamic Linker.	Loaders are of 4 types: Absolute, Relocating, Direct Linking, Bootstrap.
5	Another use of linker is to combine all object modules.	It helps in allocating the address to executable codes/files.
6	Linker is also responsible for arranging objects in program’s address space.	Loader is also responsible for adjusting references which are used within the program.