Heap logging

Question

Hi, 
 I have an application based on SDK6 example that I run on DA14531 devkit PRO. I wrote a makefile to use GCC compiler. Now, I am running into hardfaults in some random situations and I would like to debug the problem. I replace da14531.lib with da14531_with_heap_logging.lib, defined CFG_LOG_HEAP_USAGE in da1458x_config_advanced.h, added heaps structs with extern keyword `extern struct mem_usage_log heap_usage_env __SECTION_ZERO("retention_mem_area0"); ` (for all 4 heaps) and now I am trying to print some data from those structs, but they always all 0. Any idea? 
 Best regards, Michal

JK_Renesas · Accepted Answer

void print_heap_stats(void)
{
 arch_printf("HEAP_INFO: ENV: max used: %d used: %d max_used_other: %d used_other: %d 
",
 heap_usage_env.max_used_sz,
 heap_usage_env.used_sz,
 heap_usage_env.max_used_other_sz,
 heap_usage_env.used_other_sz);
 arch_printf("HEAP_INFO: DB: max used: %d used: %d max_used_other: %d used_other: %d 
",
 heap_usage_db.max_used_sz,
 heap_usage_db.used_sz,
 heap_usage_db.max_used_other_sz,
 heap_usage_db.used_other_sz);
 arch_printf("HEAP_INFO: MSG: max used: %d used: %d max_used_other: %d used_other: %d 
",
 heap_usage_msg.max_used_sz,
 heap_usage_msg.used_sz,
 heap_usage_msg.max_used_other_sz,
 heap_usage_msg.used_other_sz);
 arch_printf("HEAP_INFO: NON RET: max used: %d used: %d max_used_other: %d used_other: %d 

",
 heap_usage_nonRet.max_used_sz,
 heap_usage_nonRet.used_sz,
 heap_usage_nonRet.max_used_other_sz,
 heap_usage_nonRet.used_other_sz);
}

OV_Renesas · Answer

Hi Michal, I worked on SDK v6.0.18 and the ble_app_peripheral example. I replaced the da14531.lib with da14531_with_heap_logging.lib on the sdk_arch folder as shown below: Then I compiled and I attach the debugger to run the project: Stop the program from running and type disp_heaplog() in the Keil Command window: It works as expected on my side: Best Regards, OV_Renesas

JK_Renesas · Answer

Hi Michal, the heap logging works identically to Kiel with GCC. You need to replace the :da14531.lib in properties->c/c++ general/Libraries tab (if using eclipse, if not then in your lib linking in your makefile) with the da14531_with_heap_logging.lib 
 
 Double check your configuration file, the CFG_LOG_HEAP_USAGE gets undefined later down in the file. 
 Then make your heap log variables as extern in the file you wish to print them. 
 
 This should work from here. You should see a warning from GCC about this this flag being set, for confirmation. 
 
 I am using GCC with these steps, and successfully printing them during run time:

Heap logging

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