Method GetStackFrames

Source/Engine/Platform/Apple/ApplePlatform.cpp:612–664

}

Array<ApplePlatform::StackFrame> ApplePlatform::GetStackFrames(int32 skipCount, int32 maxDepth, void* context)
{
    Array<StackFrame> result;
#if CRASH_LOG_ENABLE
    void* callstack[120];
    skipCount = Math::Min<int32>(skipCount, ARRAY_COUNT(callstack));
    int32 maxCount = Math::Min<int32>(ARRAY_COUNT(callstack), skipCount + maxDepth);
    int32 count = backtrace(callstack, maxCount);
    int32 useCount = count - skipCount;
    if (useCount > 0)
    {
        char** names = backtrace_symbols(callstack + skipCount, useCount);
        result.Resize(useCount);
        Array<StringAnsi> parts;
        int32 len;
#define COPY_STR(str, dst) \
    len = Math::Min<int32>(str.Length(), ARRAY_COUNT(frame.dst) - 1); \
    Platform::MemoryCopy(frame.dst, str.Get(), len); \
    frame.dst[len] = 0
        for (int32 i = 0; i < useCount; i++)
        {
            const StringAnsi name(names[i]);
            StackFrame& frame = result[i];
            frame.ProgramCounter = callstack[skipCount + i];
            frame.ModuleName[0] = 0;
            frame.FileName[0] = 0;
            frame.LineNumber = 0;

            // Decode name
            parts.Clear();
            name.Split(' ', parts);
            if (parts.Count() == 6)
            {
                COPY_STR(parts[1], ModuleName);
                const StringAnsiView toDemangle(parts[3]);
                int status = 0;
                char* demangled = __cxxabiv1::__cxa_demangle(*toDemangle, 0, 0, &status);
                const StringAnsiView toCopy = demangled && status == 0 ? StringAnsiView(demangled) : StringAnsiView(toDemangle);
                COPY_STR(toCopy, FunctionName);
                if (demangled)
                    free(demangled);
            }
            else
            {
                COPY_STR(name, FunctionName);
            }
        }
        free(names);
#undef COPY_STR
    }
#endif
    return result;
}

#endif