Method UpdateMaps

user/event/event_mmap2.go:326–369

(event *Mmap2Event)

}

func (this *MapsHelper) UpdateMaps(event *Mmap2Event) {
    maps_lock.Lock()
    defer maps_lock.Unlock()
    if !slices.Contains(pid_list, event.Pid) {
        return
    }
    // 遇到 mmap2 事件的时候都去尝试读取maps信息
    this.ParseMaps(event.Pid, false)
    pid_maps, ok := this.pid_maps[event.Pid]
    if !ok {
        this.pid_maps[event.Pid] = &ProcMaps{}
    }
    pid_maps = this.pid_maps[event.Pid]

    if event.Filename == "" {
        event.Filename = fmt.Sprintf("UNNAMED_0x%x", event.Addr)
    }
    info := LibInfo{
        BaseAddr: event.Addr,
        Off:      event.Pgoff,
        EndAddr:  event.Addr + event.Len,
        LibPath:  event.Filename,
    }
    info.ParseLib()
    base_list, ok := (*pid_maps)[event.Filename]
    if ok {
        // 注意基址列表去重 做成列表的原因是...
        has_find := false
        for _, info := range base_list {
            if info.BaseAddr == info.BaseAddr {
                has_find = true
                break
            }
        }
        if !has_find {
            base_list = append(base_list, info)
            (*pid_maps)[event.Filename] = base_list
        }
    } else {
        (*pid_maps)[event.Filename] = []LibInfo{info}
    }
    // 这一句应该不用了？
    this.pid_maps[event.Pid] = pid_maps
}

func (this *MapsHelper) GetOffset(pid uint32, addr uint64) (info string) {
    maps_lock.Lock()