ESP32 Forum

Posted: **Sun Aug 15, 2021 12:16 am**

Hello,

I copied the freeRTOS into my project and I compiled my code properly and once I tried to add some tracing functions
extern void PROBE_vTraceHeap(void * pvAddress, size_t uiSize);
#define traceMALLOC(pvAddress, uiSize ) PROBE_vTraceHeap(pvAddress, uiSize)
to FreeRTOSConfig.h, i get Error: unknown opcode or format name 'extern'
and if I removed the 'extern', i will get the same error but for the void.

Please advise!

Posted: **Sun Aug 15, 2021 1:53 am**

That config file is included in assembly source file(s) as well and the assembly compiler just cannot resolve your C code. Put it in a conditional block where __ASSEMBLER__ identifier is not defined (file is not compiled by the assembler):

Code: Select all

#ifndef __ASSEMBLER__
extern void PROBE_vTraceHeap(void * pvAddress, size_t uiSize);
#define traceMALLOC(pvAddress, uiSize) PROBE_vTraceHeap(pvAddress, uiSize)
#endif

Here is an existing example and an assembly source file which includes the mentioned header.

ESP32 Forum

can not add trace function to FreeRTOSConfig.h

can not add trace function to FreeRTOSConfig.h

Re: can not add trace function to FreeRTOSConfig.h