Debugging with GDB: Extending GDB

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23 Extending GDB

GDB provides several mechanisms for extension. GDB also provides the ability to automatically load extensions when it reads a file for debugging. This allows the user to automatically customize GDB for the program being debugged.

• Sequences:		Canned Sequences of GDB Commands
• Python:		Extending GDB using Python
• Guile:		Extending GDB using Guile
• Auto-loading extensions:		Automatically loading extensions
• Multiple Extension Languages:		Working with multiple extension languages
• Aliases:		Creating new spellings of existing commands

To facilitate the use of extension languages, GDB is capable of evaluating the contents of a file. When doing so, GDB can recognize which extension language is being used by looking at the filename extension. Files with an unrecognized filename extension are always treated as a GDB Command Files. See Command files.

You can control how GDB evaluates these files with the following setting:

set script-extension off

All scripts are always evaluated as GDB Command Files.

set script-extension soft

The debugger determines the scripting language based on filename extension. If this scripting language is supported, GDB evaluates the script using that language. Otherwise, it evaluates the file as a GDB Command File.

set script-extension strict

The debugger determines the scripting language based on filename extension, and evaluates the script using that language. If the language is not supported, then the evaluation fails.

show script-extension

Display the current value of the script-extension option.

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