INNER CODE UNIT · C

old_addr

iqiyi/xHook · libxhook/jni/xh_elf.c:477

    old_addr = *(void **)addr;
    if(NULL != old_func) *old_func = old_addr;

    //replace func
    *(void **)addr = new_func; //segmentation fault sometimes

    if(old_prot != need_prot)
    {
        //restore the old prot
        if(0 != (r = xh_util_set_addr_protect(addr, old_prot)))
        {
            XH_LOG_WARN("restore addr prot failed. ret: %d", r);
        }
    }
    
    //clear cache
    xh_util_flush_instruction_cache(addr);

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