| sampleIndex | Index of the Profiler sample. |
| outCallstack | 使用调用栈指针填充的列表（作为方法调用的结果）。 |
Gets the callstack associated with the specified sample.
When the callstack collection mode is enabled for certain profiler markers (such as GC.Alloc), the Profiler writes the callstack to the data stream. The callstack refers to the instruction pointer stack.
Instruction pointers can be resolved into function names which you can then use to identify the sample origin in the source code.
GetSampleCallstack retrieves the callstack as a list of pointers. Each list entry represents a function call.
Use FrameDataView.ResolveMethodInfo to get funtion name and location information for the instruction pointer.
See Also: sampleCount, FrameDataView.ResolveMethodInfo.