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📁 一份很好的linux入门资料
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<HTML><HEAD>  <TITLE>BBS水木清华站∶精华区</TITLE></HEAD><BODY><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER>发信人:&nbsp;chenl&nbsp;(bigmouth),&nbsp;信区:&nbsp;Linux&nbsp;<BR>标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;求助高手&nbsp;(转载)&nbsp;<BR>发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Sat&nbsp;Aug&nbsp;&nbsp;7&nbsp;09:02:19&nbsp;1999)&nbsp;WWW-POST&nbsp;<BR>&nbsp;<BR>【&nbsp;在&nbsp;valencia&nbsp;(郭靖)&nbsp;的大作中提到:&nbsp;】
&nbsp;<BR>∶<I>&nbsp;【&nbsp;以下文字转载自&nbsp;Unix&nbsp;讨论区&nbsp;】
&nbsp;</I><BR>∶<I>&nbsp;【&nbsp;原文由&nbsp;valencia&nbsp;所发表&nbsp;】
&nbsp;</I><BR>∶<I>&nbsp;我的一个程序（规模比较大）：其中有一个函数中
&nbsp;</I><BR>∶<I>&nbsp;有一个变量：result,
&nbsp;</I><BR>∶<I>&nbsp;在执行过程中从没有修改过，但在某个地方
&nbsp;</I><BR>∶<I>&nbsp;突然变了，在其后语句“return&nbsp;result”
&nbsp;</I><BR>∶<I>&nbsp;时，程序死掉了有（SIGILL&quot;信号）
&nbsp;</I><BR>∶<I>&nbsp;后修改程序，不return&nbsp;result&nbsp;而是return&nbsp;1
&nbsp;</I><BR>∶<I>&nbsp;依然以SIGILL死掉
&nbsp;</I><BR>∶<I>&nbsp;大虾门认为回有什么样的原因造成着个结果？怎么处理？&nbsp;万分感谢
&nbsp;</I><BR>∶<I>&nbsp;在详细解释以下SIGILLC出现的原因
&nbsp;</I><BR>∶<I>&nbsp;我看了头文件“/*&nbsp;(*)&nbsp;illegal&nbsp;instruction&nbsp;(not&nbsp;reset&nbsp;when&nbsp;caught)*/”
&nbsp;</I><BR>∶<I>&nbsp;aix&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;^^^^^^^^^^^^^^^^^^^^^^^???&nbsp;what&nbsp;&nbsp;</I><BR>∶<I>&nbsp;mean?
&nbsp;</I><BR>∶<I>&nbsp;感觉默默忽忽的，还是补台明白
&nbsp;</I><BR>In&nbsp;C,&nbsp;all&nbsp;variants&nbsp;are&nbsp;stored&nbsp;in&nbsp;the&nbsp;stack.&nbsp;Some&nbsp;functions
&nbsp;<BR>,as&nbsp;scanf&nbsp;use&nbsp;less_strict&nbsp;prototype&nbsp;check.&nbsp;So,&nbsp;the&nbsp;procedure&nbsp;
&nbsp;<BR>as&nbsp;below&nbsp;will&nbsp;give&nbsp;u&nbsp;un-anticipated&nbsp;result:
&nbsp;<BR>char&nbsp;i;
&nbsp;<BR>int&nbsp;b;
&nbsp;<BR>scanf(&quot;%d&quot;,&nbsp;&amp;i);
&nbsp;<BR>the&nbsp;scanf&nbsp;will&nbsp;fill&nbsp;in&nbsp;a&nbsp;integer&nbsp;result&nbsp;at&nbsp;the&nbsp;address&nbsp;i,&nbsp;
&nbsp;<BR>to&nbsp;overlap&nbsp;the&nbsp;buffer&nbsp;of&nbsp;b.&nbsp;&nbsp;<BR>--&nbsp;<BR>&nbsp;<BR>&nbsp;&nbsp;舟摇摇而轻扬,&nbsp;风飘飘以吹衣,&nbsp;<BR>&nbsp;&nbsp;问征夫以前路,&nbsp;恨晨光之曦微.&nbsp;<BR>&nbsp;<BR>※&nbsp;来源:·BBS&nbsp;水木清华站&nbsp;bbs.net.tsinghua.edu.cn·[FROM:&nbsp;202.115.6.100]&nbsp;&nbsp;<BR><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER></BODY></HTML>
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