最新master分支hook memcpy crash

[codwam]

Demo:

void  *(*orig_memcpy)(void *__dst, const void *__src, size_t __n);
static void  *replaced_memcpy(void *__dst, const void *__src, size_t __n)
{
    void *r = orig_memcpy(__dst, __src, __n); // r = dst
    return r;
}

static void bug() {
    DobbyHook((void  *)memcpy,  (void  *)replaced_memcpy,  (void  **)&orig_memcpy); // crash
    __unused void *r = malloc(100);
}

截图：