Allocation Recorder

The allocation_recorder lets Crashpad include a log of recent calls to malloc() and free() when a memory safety fault is detected. Each entry includes a portion of the stack trace as well as the size and the address of the object. The code that generates the log lives in base/debug/allocation_trace.h

Code organization

The component is split up into multiple parts.

• crash_client: To be used by the client, that is the process for which a crash report shall be created. The client also contains the definition of the recorder.
• crash_handler: To be used by the crashpad handler. In case of a crash, the crash handler is responsible to create a proper report from the recorder data. This will be implemented in a follow up CL.
• internal: Code that is shared between crash_client and crash_handler but used only internally, i.e. name of the crashpad annotation used to store data.

Current state of implementation

Due to the size of implementation, the feature will be implemented in multiple CLs.