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Oracle® Solaris Modular Debugger Guide

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Updated: February 2021

Processor-Specific Features of kmdb

Some kmdb functionality is specific to an individual processor architecture. For example, various x86 processors support a hardware branch tracing capability that is not found on some other processor architectures. Access to processor-specific features is provided through processor-specific dcmds that are only present on systems that support them. The availability of processor-specific support is shown in the output of the ::status dcmd. The debugger relies upon the kernel to determine the processor type. Therefore, even though the debugger might provide features for a given processor architecture, this support is not exposed until the kernel has progressed to the point where processor identification has completed.