undefined reference to '_modsi3'和`__udivdi3'
【問題描述】： 自己實現printf函數來方便裸板調試打印的時，在printf函數中用到了求餘%和除法/操作： 結果報錯： 【問題分析】： ARM是精簡指令集，對求餘和除法操作基本上不支持，所以應該儘量避免上述操作。 【解決方法】： linux內核源碼linux/arch/arm/lib/lib1funcs.S實現支持除法、求模操作等操作的庫函數，下載地址:https://gitee.com/zg
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相關文章
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