XBOX での Address Sanitizer サポート

// 1. Use a hardcoded dump name
extern "C" const wchar_t* __vcasan_save_dumps()
{
    return L"myCrashDump.dmp";
}

// 2. Programmatically build the dump name
extern "C" const wchar_t* __vcasan_save_dumps()
{
    return TestFramework.buildName + TestFramework.buildInfo + TestFramework.dateTime;
}

// 3. You can conditionally choose NOT to collect a crash dump
extern "C" const wchar_t* __vcasan_save_dumps()
{
    // Choose to create a crash dump based on a runtime flag
    if ( gCollectCrashDumps )
    {
        return L"myCrashDump.dmp";
    }
    else
    {
        // Returning NULL stops ASan creating a crash dump
        return NULL;
    };
}

extern "C" const signed int __vcasan_override_dumptype()
{
    // The current valid values are:
    // 0 : Triage Dump
    // 1 : Mini Dump
    // 2 : Heap Dump
    // Values outside this range are defaulted to 2 (Full Heap)

    // This example uses Heap Dumps which give the most information
    return 2;
}

#include <cstdio>

extern "C" const wchar_t* __vcasan_save_dumps()
{
    // Specify dump filename
    return L"myCrashDump.dmp";
}

extern "C" const signed int __vcasan_override_dumptype()
{
    // Full heap dump requested
    return 2;
}

static const int arraySize = 8;
static int asanArray[arraySize];
static int asanAccumulator = 0;

int main()
{
    // ASan should use the callback functions that we have provided
    for (int loop = 0; loop <= arraySize; loop++)
    {
        // We don't really care about accumulating the values
        // We just want to access outside the array causing an ASan error
        asanAccumulator += asanArray[loop];
    }

    // If we get here, we have failed as ASan should have caught the error above
    printf("fail");

    return 0;
}

cl /nologo /fsanitize=address /Zi ASanTest.cpp

Exception thrown at 0x00007FF8FCAAFCF6 (clang_rt.asan_dynamic-x86_64.dll) in game.exe: 0xE0736171: Access violation reading location 0x000017FF1F9E1250.