valgrind - victronenergy/venus GitHub Wiki
Note: available since Venus OS v3.70 as working ipk
Valgrind is a programming tool for memory debugging, memory leak detection, and profiling. Homepage Wikipedia
First make sure opkg is setup correctly. There after install valgrind (and a compiler for testing).
opkg install valgring packagegroup-core-buildessential
leak.c
#include <stdlib.h>
int main() {
char *p = malloc(100);
return 0;
}gcc leak.c -o leak
root@ekrano:~# valgrind ./leak
==14959== Memcheck, a memory error detector
==14959== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==14959== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
==14959== Command: ./leak
==14959==
==14959==
==14959== HEAP SUMMARY:
==14959== in use at exit: 100 bytes in 1 blocks
==14959== total heap usage: 1 allocs, 0 frees, 100 bytes allocated
==14959==
==14959== LEAK SUMMARY:
==14959== definitely lost: 100 bytes in 1 blocks
==14959== indirectly lost: 0 bytes in 0 blocks
==14959== possibly lost: 0 bytes in 0 blocks
==14959== still reachable: 0 bytes in 0 blocks
==14959== suppressed: 0 bytes in 0 blocks
==14959== Rerun with --leak-check=full to see details of leaked memory
==14959==
==14959== For lists of detected and suppressed errors, rerun with: -s
==14959== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)Valgrind has a lot of options that can be set.
Example:
valgrind -v --num-callers=50 --track-origins=yes --leak-check=full ./leak
Optional plugins are available as ipks, see for example
- valgrind-cachegrind
- valgrind-callgrind
- valgrind-massif
note: At the moment, September 2025, valgrind has problems correctly tracking Qt program