[ASAN] "-fsanitize=address" flag halting the executable

[saksham-joshi]

Code:

// CPP VERSION = c++17
#include <exception>
#include <iostream>

struct FileNameNotProvidedToCompiler : public std::exception {
    inline virtual const char* what() const noexcept override {
        return "getting the file name";
    }
};

int main() {
    try {
        throw FileNameNotProvidedToCompiler();
    } catch (const FileNameNotProvidedToCompiler& excep) {
        std::cerr << excep.what() << std::endl;
    }
    std::cerr << "\n >>>> Done <<<<";
}

Issue:

• The above code is being compiled with this command:

  clang++ experi.cpp -o experi.exe -Wall -std=c++17 -fsanitize=address

• There are no compilation errors.
• But after executing the executable (i.e. experi.exe), the output is nothing.
• Neither the ASAN displayed any problem nor the std::cerr.
• After removing the flag "-fsanitize=address",

   clang++ experi.cpp -o experi.exe -Wall -std=c++17

  the code compiles with no issues and the executable ran with no problem.
• I ran the same code in online compilers, and it ran with no issues.
• I also used onlinegdb.com's extra compiler flags feature where I placed "-fsanitize=address" as a compiler flag and it ran smoothly. (NOTE: onlinegdb.com uses GCC for C/C++).

My specs:

• OS: Windows 11 24H2
• Processor: i5 10th gen (x64 arch)
• RAM: 8 GB DDR4
• Clang-version: 20.1.6

Please fix this issue and if I am lacking some knowledge, please teach me. Thank You in Advance🩵.