What does ld mean in c language?

ld is a command line tool used to link target files in Linux systems. The main functions of ld include linking multiple object files into a single executable file or shared library. Resolve symbols and resolve external references. Add necessary libraries and header files. Set up the file header and segment table.

ld means in C language:

ld is the command used to link object files in Linux systems line tools. It is responsible for linking object files (such as .o files) together to create an executable or shared library.

Function:

The main functions of ld include:

• Link multiple target files into a single executable file or shared library.
• Resolve symbols and resolve external references.
• Add necessary libraries and header files.
• Set the file header and segment table.

Usage:

The basic syntax of the ld command is as follows:

<code>ld [选项] 输入文件 [输出文件]</code>

• Input file: Required List of linked target files.
• Output file: The executable or shared library to be created.
• Options: Options that specify link behavior.

Common options:

• -o:Specify the name of the output file.
• -L：Specify the library file search path.
• -l: Link to the specified library.
• -r: Create a relocatable target file.
• -s: Reduce the size of the output file.

Example:

Link foo.o and bar.o into executable files myprog:

<code>ld -o myprog foo.o bar.o</code>

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