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  • 编译内核错误:Can't use 'defined(@array)' (Maybe you should just omit the defined()?) at kernel/timeconst.pl line 373

    最近在编译一个新的rk sdk的时候,编译内核报错

      CHK     include/linux/version.h
      CHK     include/generated/utsrelease.h
    make[1]: 'include/generated/mach-types.h' is up to date.
      CALL    scripts/checksyscalls.sh
      CHK     include/generated/compile.h
      TIMEC   kernel/timeconst.h
    Can't use 'defined(@array)' (Maybe you should just omit the defined()?) at kernel/timeconst.pl line 373.
    /home/liuxueneng/workCode/rk3066/kernel/kernel/Makefile:141: recipe for target 'kernel/timeconst.h' failed
    make[1]: *** [kernel/timeconst.h] Error 255
    Makefile:973: recipe for target 'kernel' failed
    make: *** [kernel] Error 2

    显示错误

    Can't use 'defined(@array)' (Maybe you should just omit the defined()?) at kernel/timeconst.pl line 373

    已经提示纤细的错误信息在哪里了,打开timeconst.ps看一下

     372        @val = @{$canned_values{$hz}};                                        
     373         if (!defined(@val)) {                                                          
     374                 @val = compute_values($hz);                                   
     375         }                                                                     
     376         output($hz, @val);

    改成如下就可以编译了

     372        @val = @{$canned_values{$hz}};                                        
     373         if (!@val) {                                                          
     374                 @val = compute_values($hz);                                   
     375         }                                                                     
     376         output($hz, @val);

    参考http://blog.5ibc.net/p/48570.html

    查了一下更新,发现其中有一项是perl版本升级到了 v5.22.1,然后查了perl官方文档,发现官网因为一个bug,该版本将defined(@array)去掉了。可以直接使用数组判断非空。

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  • 原文地址:https://www.cnblogs.com/tid-think/p/10929435.html
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