unwind_exception

MCP tool from Embedded Debugger MCP by Adancurusul

Unwind the stack after a crash and map each frame to a source line. On the probe-rs backend, returns a full DWARF backtrace (function + file:line per frame) via probe-rs's own unwinder; on the OpenOCD backend, reads the Cortex-M exception stack frame and maps the faulting PC / caller LR to source li

How to use it

unwind_exception is exposed by the Embedded Debugger MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the unwind_exception tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

FULL EMBEDDED DEBUGGER MCP LISTING

Other tools in Embedded Debugger MCP (23)

clear_breakpoint

Clear a hardware breakpoint.

connect

Open a probe session for a target chip.

diagnose_fault

Read the Cortex-M SCB fault registers (CFSR/HFSR/MMFAR/BFAR/SHCSR/CPUID) plus PC/SP/LR in one call and return a compact structured evidence bundle with the set fault bits. Reports raw evidence; it does not assert a root cause. Halt the target first.

disconnect

Drop the session and clean up resources.

flash_erase

Erase flash when erase permissions are enabled.

flash_program

Program ELF, HEX, or BIN files through probe-rs flash algorithms.

flash_verify

Compare raw expected data with target flash contents.

get_status

Read core/session status.

halt

Halt core execution.