#include <nitro/os.h>void OS_InitStatistics( void* statBuf, u32 size );
| statBuf | Function cost statistics buffer |
| size | Size of the function cost statistics buffer |
None.
This function initializes the function cost statistics buffer.
To enable this function, at link time you must include libos.FUNCTIONCOST.a (in the thumb version libos.FUNCTIONCOST.thumb.a). To do this, specify TWL_PROFILE_TYPE=FUNCTIONCOST as a make option. You may also write it in the makefile. However, in the final ROM version (FINALROM) library, it will not do anything.
Header information ( sizeof(OSFunctionCostStatisticsInfo) - sizeof(OSFunctionCostStatistics) bytes, which includes the buffer's end position, the current pointer, and so on) is stored in the front of the buffer buf. The rest of the buffer is packed from the front with the statistics information.
Use OS_CalcStatistics() or OS_CalcThreadStatistics() to aggregate the contents of a function cost calculation buffer into the function cost statistics buffer. Then use OS_DumpStatistics() to display those contents. You can accumulate the contents of multiple function cost calculation buffers into one function cost statistics buffer.
OS_DumpStatistics, OS_CalcStatistics, OS_CalcThreadStatistics
2004/05/18 Initial version.
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