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DYLD_INTERPOSE

Posted by 夏泽民 Nov 24, 2019

https://opensource.apple.com/source/dyld/dyld-353.2.1/include/mach-o/dyld-interposing.h // 演示代码 // #import <mach-o/dyld-interposing.h> // from dyld-interposing.h #define DYLD_INTERPOSE(replacement,_replacee) attribute((used)) static struct{ const void* replacement; const void* replacee; } _interpose##_replacee attribute ((section (“__DATA,__interpose”))) = { (const void)(unsigned long)&_replacement, (const void)(unsigned long)&_replacee };

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DYLD_FORCE_FLAT_NAMESPACE

Posted by 夏泽民 Nov 24, 2019

1、gcc生成dylib。

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LD_LIBRARY_PATH

Posted by 夏泽民 Nov 24, 2019

PATH: 可执行程序的查找路径

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tcmalloc

Posted by 夏泽民 Nov 23, 2019

从堆上申请内存 Go内存管理的设计目标是在并发环境下保持高性能，并且集成垃圾回收器。让我们从一个简单的例子开始：

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set

Posted by 夏泽民 Nov 23, 2019

set -x 与 set +x 在liunx脚本中可用set -x就可有详细的日志输出.免的老是要echo了

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