Method ParseMapsContent

user/event/event_mmap2.go:258–314

(pid uint32, content []byte, del_old bool)

}

func (this *MapsHelper) ParseMapsContent(pid uint32, content []byte, del_old bool) error {
    var (
        seg_start  uint64
        seg_end    uint64
        permission string
        seg_offset uint64
        device     string
        inode      uint64
        seg_path   string
    )

    if del_old {
        this.pid_maps[pid] = &ProcMaps{}
    } else {
        _, ok := this.pid_maps[pid]
        if !ok {
            this.pid_maps[pid] = &ProcMaps{}
        }
    }
    pid_maps := this.pid_maps[pid]
    for _, line := range strings.Split(string(content), "\n") {
        reader := strings.NewReader(line)
        n, err := fmt.Fscanf(reader, "%x-%x %s %x %s %d %s", &seg_start, &seg_end, &permission, &seg_offset, &device, &inode, &seg_path)
        if err == nil && n == 7 {
            if seg_path == "" {
                seg_path = fmt.Sprintf("UNNAMED_0x%x", seg_start)
            }
            new_info := LibInfo{
                BaseAddr: seg_start,
                Off:      seg_offset,
                EndAddr:  seg_end,
                LibPath:  seg_path,
            }
            new_info.ParseLib()

            base_list, ok := (*pid_maps)[seg_path]
            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 == new_info.BaseAddr {
                        has_find = true
                        break
                    }
                }
                if !has_find {
                    base_list = append(base_list, new_info)
                    (*pid_maps)[seg_path] = base_list
                }
            } else {
                (*pid_maps)[seg_path] = []LibInfo{new_info}
            }
        }
    }
    this.pid_maps[pid] = pid_maps
    return nil
}