How Can I Handle Segmentation Faults in Linux?

How to Handle Segmentation Faults in Linux

In certain scenarios, it may be necessary to catch and handle segmentation faults, which can occur when a program attempts to access memory outside of its allocated space. While Windows provides the __try-__catch mechanism, Linux offers alternative solutions to accomplish the same task.

Linux Signal Handling

On Linux, segmentation faults are typically signaled through the SIGSEGV signal. By registering a custom handler for this signal, you can intercept and mitigate its consequences. However, it's crucial to ensure that your code is capable of recovering from such situations.

Exception Handling with Libraries

Certain libraries, such as the one mentioned in the provided answer, offer the ability to convert signals like SIGSEGV into exceptions. This allows you to write code that resembles the following:

try
{
    *(int*) 0 = 0;
}
catch (std::exception& e)
{
    std::cerr << &quot;Exception caught : &quot; << e.what() << std::endl;
}

Note: The library mentioned in the answer is platform-specific and requires a specific backend for different platforms. However, the concept of signal handling and exception conversion can be applied to other libraries or techniques as well.

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