mcp-gdb

signal-slot/mcp-gdb

3.5

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A Model Context Protocol (MCP) server that provides GDB debugging functionality for use with Claude or other AI assistants.

MCP GDB Server

npm version license

A Model Context Protocol (MCP) server that provides GDB debugging functionality for use with Claude or other AI assistants.

Features

  • Start and manage GDB debugging sessions
  • Load programs and core dumps for analysis
  • Set breakpoints, step through code, and examine memory
  • View call stacks, variables, and registers
  • View source code with VS Code integration
  • Execute arbitrary GDB commands

Installation

Claude Code

claude mcp add gdb -- npx -y mcp-gdb

Claude Desktop

Add the following to your Claude Desktop MCP configuration:

{
  "mcpServers": {
    "gdb": {
      "command": "npx",
      "args": ["-y", "mcp-gdb"]
    }
  }
}

Install from Source

git clone https://github.com/signal-slot/mcp-gdb.git
cd mcp-gdb
npm install
npm run build

Usage

Example Commands

Here are some examples of using the GDB MCP server through Claude:

Starting a GDB session
Use gdb_start to start a new debugging session
Loading a program
Use gdb_load to load /path/to/my/program with the sessionId that was returned from gdb_start
Setting a breakpoint
Use gdb_set_breakpoint to set a breakpoint at main in the active GDB session
Running the program
Use gdb_continue to start execution
Examining variables
Use gdb_print to evaluate the expression "my_variable" in the current context
Getting a backtrace
Use gdb_backtrace to see the current call stack
Terminating the session
Use gdb_terminate to end the debugging session

Supported GDB Commands

  • gdb_start: Start a new GDB session
  • gdb_load: Load a program into GDB
  • gdb_command: Execute an arbitrary GDB command
  • gdb_terminate: Terminate a GDB session
  • gdb_list_sessions: List all active GDB sessions
  • gdb_attach: Attach to a running process
  • gdb_load_core: Load a core dump file
  • gdb_set_breakpoint: Set a breakpoint
  • gdb_continue: Continue program execution
  • gdb_step: Step program execution
  • gdb_next: Step over function calls
  • gdb_finish: Execute until the current function returns
  • gdb_backtrace: Show call stack
  • gdb_print: Print value of expression
  • gdb_examine: Examine memory
  • gdb_info_registers: Display registers
  • gdb_list_source: List source code at current location or specified location with VS Code integration

License

MIT