Nordic - nRF9160 (nRF Zephyr SDK) - Is __heapstats() Supported? When will it be supported if not?

Question

Hello, 
 Are there plans to support the ARM function __heapstats() for the nRF9160 (under Zephyr)? 
 I see since 1.9.x sys_heap_runtime_stats_get() is supported - but when I try to compile under 1.9.1 it says I'm trying to redefine the function and/or 
 struct sys_heap_runtime_stats stat; -> sizeof stat Is undefined or unknown. 
 
 Are there working examples of either of these two functions someplace for the nRF9160 under Zephyr? 
 I have the following in my source: 
 #include <sys/sys_heap.h> 
 #define CONFIG_SYS_HEAP_RUNTIME_STATS 
 I see also from the pull request logs for Zephyr on github this was done (adding the sys_heap stats) in the Fall of 2021. 
 
 Thanks, John W.

JadenUE · Accepted Answer

Hi John, 
 Not sure if this is something of use to you but I will put it here for others facing this issue in the future. 
 I have had luck with the following: 
 
 proj.conf: 
 
 CONFIG_SYS_HEAP_RUNTIME_STATS =y

c function: 
 
 #include <zephyr/sys/sys_heap.h> 
 
 // Debug Variables 
 extern struct k_heap _system_heap ; 
 struct sys_memory_stats stats ;

void rtos_hal_print_heap_info ( void ) 
 { 
 sys_heap_runtime_stats_get (& _system_heap . heap , & stats ); 
 
 printk ( " 
 " ); 
 printk ( "INFO: Allocated Heap = %zu 
 " , stats . allocated_bytes ); 
 printk ( "INFO: Free Heap = %zu 
 " , stats . free_bytes ); 
 printk ( "INFO: Max Allocated Heap = %zu 
 " , stats . max_allocated_bytes ); 
 printk ( " 
 " ); 
 
 return ; 
 } 
 
 Kind Regards, 
 Jaden

Nordic - nRF9160 (nRF Zephyr SDK) - Is __heapstats() Supported? When will it be supported if not?

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