Wrong mimalloc stat with asan

[thweetkomputer]

#include <stdlib.h>

int main() {
    int *a = (int *)malloc(sizeof(int));
    *a = 1;
    
    return 0;
}

Hi, I wrote a demo and want to use mimalloc with asan enabled.

 gcc test.c -I/usr/local/include/mimalloc-2.1 -lmimalloc-asan-debug -fsanitize=address -fsanitize-recover=address -lpthre

I found that the stats all become zero, is this normal?

But the stat shows normally when asan is disabled.

Can you help me?

[imsharukh1994]

If you just need ASan’s checks and mimalloc for the allocation, try using ASan with mimalloc without enabling mimalloc’s stats:

gcc test.c -I/usr/local/include/mimalloc-2.1 -lmimalloc-asan-debug -fsanitize=address -fsanitize-recover=address -lpthread 

If you need mimalloc stats, disable ASan for the time being or use mimalloc’s default allocator without ASan’s intervention. You could compile with:

gcc test.c -I/usr/local/include/mimalloc-2.1 -lmimalloc -lm -lpthread

This should ensure that mimalloc tracks memory correctly and reports statistics.