armink/CmBacktrace

Health v2 · maintenance only

Adoption not part of the score

2160 stars · 736 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

CmBacktrace is an open-source C library for ARM Cortex-M microcontrollers that automatically diagnoses faults (Hard Fault, Bus Fault, etc.) and outputs the function call stack at the error site. It works bare-metal or with RTOSes like RT-Thread, FreeRTOS, and UCOS, and integrates with addr2line for precise code location.

Use cases

• debug hardfault crashes on cortex-m mcu
• print function call stack after firmware crash
• automatically diagnose fault register causes on arm cortex-m
• capture backtrace in embedded c firmware
• locate crash code line in rt-thread or freertos application
• get current call stack on bare metal mcu

When to choose

• developing firmware on ARM Cortex-M0/M3/M4/M7 and need fast fault diagnosis
• you want automatic fault cause analysis instead of manually decoding fault registers
• you need call stack output on bare metal or RTOS-based projects with IAR, KEIL, or GCC

When to avoid

• targeting non-ARM or non-Cortex-M architectures
• working on Linux/desktop applications rather than embedded firmware
• you need source-level debugging only via an attached debugger without runtime fault handling

Facets

library · maturity stable

error-handling developer-tools logging embedded-systems developer-tools embedded c backtrace cortex-m hardfault fault-diagnosis call-stack rtos mcu debugging arm

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