https://clang.llvm.org/docs/AddressSanitizer.html
Compile with: -O1 -g -fsanitize=address -fno-omit-frame-pointer
Add -fno-optimize-sibling-calls for better callstacks
Link with: -g -fsanitize=address
testing sanitizer is enabled
It's good to verify that sanitizer is enabled and working. Add this snippet of code and call it from your code. It should trigger sanitizer
void trigger_address_sanitizer() {
char *a = (char*)malloc(4);
char c = a[5]; /* this line should trigger sanitizer */
printf("c: %d\n", (int)c);
free((void*)a);
}