Debugging & Tracing and More Between Linux and RTOS on Heterogeneous ARM SoC
Talkat Open Source Summit Japan + AI_dev: Open Source GenAI & ML Summit + Automotive Linux Summit 2025 · 2025-12-08..12-10·
summary
Claims a practical workflow to debug RTOS from Linux using remoteproc lifecycle control and OSS snapshot/coredump tooling, plans a demo with AGL + Qemu but it is not delivered, and compares alternatives like Huawei Open-Embedded MSC, lightweight partitioning and GDB-over-shared-memory. Implementation details: copy or expose RTOS data from TCM/cache into non-cached or shadow memory, trigger snapshots from Linux, and accept RTOS changes for register saves. Security mitigations include MMU/bus access controls and ARM secure world isolation.
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chapters (18)
- 0:00Heterogeneous ARM SoC debugging
- 3:38Automotive hardware evolution
- 6:31Key characteristics of heterogeneous SoCs
- 10:05Heterogeneous systems challenges
- 11:36Linux and RTOS debugging
- 15:10Linux remoteproc subsystem
- 16:55Open embedded MSC
- 18:20Virtualization on heterogeneous chips
- 20:32Shared memory for fast data
- 21:14RTOS on Cortex-M traits
- 22:19Code dumps generation & analysis
- 24:52Cache consistency handling
- 27:32Crash snapshots in automotive
- 29:17Online RTOS debugging
- 31:05Shadow memory for RTOS
- 32:10Virtual terminals for testing
- 33:17Safety vs security in debugging
- 35:28Future work and applications
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