2. UndefinedBehaviorSanitizer (UBSAN):用于检测未定义行为,如整数溢出、空指针解引用等。它会在编译过程中将一些未定义行为转换成检测代码,并在运行时触发报错。 3. ThreadSanitizer (TSAN):用于检测数据竞争,即多线程环境下对共享数据的并发访问问题。它通过在运行时跟踪线程间的读写操作并进行检测,当发现数据竞争...
-fsanitize=address选项:启用 AddressSanitizer,用于检测内存越界和使用释放后内存错误。 -fsanitize=thread选项:启用 ThreadSanitizer,用于检测数据竞争错误。 -fsanitize=leak选项:启用 LeakSanitizer,用于检测内存泄漏。 -fsanitize=undefined选项:启用 UndefinedBehaviorSanitizer,用于检测各种未定义行为。 步骤: 编译源文件时...
1.1.3 fsanitize=leak -fsanitize=leak:使用 LeakSanitizer(LSan)工具,它可以检测程序中的内存泄漏。 #include<iostream>usingnamespacestd;voidfun(){int*a=newint();}intmain(){fun();return0;} 1.1.4 fsanitize=undefined -fsanitize=undefined:使用 UndefinedBehaviorSanitizer(UBSan)工具,它可以检测代码中的...
Enable UndefinedBehaviorSanitizer, a fast undefined behavior detector. Various computations are instrumented to detect undefined behavior at runtime. Current suboptions are: -fsanitize=shift This option enables checking that the result of a shift operation is not undefined. Note that what exactly is c...
Enable UndefinedBehaviorSanitizer, a fast undefined behavior detector. Various computations are instrumented to detect undefined behavior at runtime. Current suboptions are: -fsanitize=shift This option enables checking that the result of a shift operation is not undefined. Note that what exactly is ...
UndefinedBehaviorSanitizer gained a few new sanitization options Pointer Bounds Checker, a bounds violation detector, has been added and can be enabled via -fcheck-pointer-bounds. Memory accesses are instrumented with run-time checks of used pointers against their bounds to detect pointer bounds violat...
UndefinedBehaviorSanitizer (ubsan), a fast undefined behavior detector, has been added and can be enabled via-fsanitize=undefined. Various computations will be instrumented to detect undefined behavior at runtime. UndefinedBehaviorSanitizer is currently available for the C and C++ languages. ...
UndefinedBehaviorSanitizer 提供新的 sanitization 選項:-fsanitize=bounds-strict,可以打開嚴格的 array bounds 檢查。 特別是,它同時啟用了fsanitize=bounds和 instrumentation of flexible array member-like arrays。 Type-based alias 的分析現在能夠更清楚地處理不同指標的存取行為。在高階的 C/C++ 程式中大約改善了...
在ARM架构中引入内存错误检查器AddressSanitizer 增加运行时错误检测器UndefinedBehaviorSanitizer 多项链接优化(包含对类型合并功能重写、函数体按需加载等)[Debug模式的Firefox内存消耗从15GB降到3.5GB,链接时间从1700秒降到350秒] Inter-procedural优化改进(包含新的继承类型分析模型、直接调用转为非直接调用和本地符号别名...
. Various computations will be instrumented to detect undefined behavior at runtime. UndefinedBehaviorSanitizer is currently available for the C and C++ languages. Link-time optimization (LTO) improvements:Memory usage building Firefox with debug enabled was reduced from 15GB to 3.5GB; link time from...