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Meta has built a vendor-neutral accelerator plugin architecture in lldb-server. This architecture represents the CPU and GPU as two independent LLDB targets, yet presents them within the same debugging session. By design, shared debugger infrastructure is separated from hardware-specific device control, and GPU debugging is enabled only when the application uses a supported GPU runtime; pure-CPU applications still follow the original native debugging path and incur no additional runtime overhead. This work was published by the Meta Engineering Blog on November 10, 2026, and there are no subsequent developments as of now.
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Meta Extends LLDB to Debug CPU and GPU Simultaneously with a Vendor-Neutral Accelerator PluginDevelopments
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Meta builds a vendor-neutral accelerator plugin architecture in lldb-server
Source:Meta Engineering Blog
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Nov 10
Meta Engineering BlogFirst-party
Meta Extends LLDB to Debug CPU and GPU Simultaneously with a Vendor-Neutral Accelerator Plugin
Meta has built a vendor-neutral accelerator plugin architecture in lldb-server, representing the CPU and GPU as two separate LLDB targets while presenting them within the same debugging session. This design separates shared debugger infrastructure from hardware-specific device control, enabling GPU debugging only when an application uses a supported GPU runtime, while pure CPU applications still follow the original native debugging path with no additional runtime overhead.