objcopy

objcopy

The objcopy command in Linux is used to copy and modify object files. It is a powerful tool that can be used to create new object files, to extract sections from object files, and to convert object files between different formats.

The syntax for the objcopy command is as follows:

objcopy [options] input_file output_file

The input_file argument is the object file that you want to copy or modify.

The output_file argument is the name of the new object file that you want to create.

The options argument can be used to control the behavior of the objcopy command.

Here are some of the most useful objcopy options:

• -O: Specify the output format.

• -j: Extract a section from the input file.

• -I: Convert the input file to a different format.

• -R: Remove a section from the input file.

Here is an example of how to use the objcopy command to create a new object file from the object file input.o:

objcopy -O binary input.o output.bin

This command will create a new object file called output.bin from the object file input.o. The output file will be in the binary format.

Here is an example of how to use the objcopy command to extract the section .text from the object file input.o:

objcopy -j .text input.o output.o

This command will extract the section .text from the object file input.o and create a new object file called output.o. The output file will only contain the section .text.

Here is an example of how to use the objcopy command to convert the object file input.o to the ELF format:

objcopy -I binary -O elf32-i386 input.o output.o

This command will convert the object file input.o to the ELF format and create a new object file called output.o. The output file will be in the ELF format.

The objcopy command is a valuable tool for working with object files. It can be used to create new object files, to extract sections from object files, and to convert object files between different formats.

Here are some of the benefits of using the objcopy command:

• It can be used to create new object files.

• It can be used to extract sections from object files.

• It can be used to convert object files between different formats.

• It can be used to troubleshoot problems with object files.

If you are working with object files, you should make sure to learn how to use the objcopy command. It is a valuable tool for working with object files and for troubleshooting problems with object files.

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