93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
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#include "il2cpp-config.h"
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#if IL2CPP_TARGET_WINDOWS
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#include "WindowsHeaders.h"
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#include "dbghelp.h"
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#include "os/Mutex.h"
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#include "os/StackTrace.h"
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namespace il2cpp
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{
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namespace os
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{
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void StackTrace::WalkStackNative(WalkStackCallback callback, void* context, WalkOrder walkOrder)
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{
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const uint32_t kMaxFrames = 128;
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void* stack[kMaxFrames];
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size_t frames = CaptureStackBackTrace(0, kMaxFrames, stack, NULL);
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// If didn't get any frames on the first try, try again
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// Sometimes on Windows 10 on a newly created thread CaptureStackBackTrace doesn't work the first time we call it.
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if (frames == 0)
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frames = CaptureStackBackTrace(0, kMaxFrames, stack, NULL);
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IL2CPP_ASSERT(frames > 0 && "CaptureStackBackTrace returned no frames");
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if (walkOrder == kFirstCalledToLastCalled)
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{
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for (size_t i = frames; i--;)
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{
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if (!callback(reinterpret_cast<Il2CppMethodPointer>(stack[i]), context))
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break;
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}
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}
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else
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{
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for (size_t i = 0; i < frames; i++)
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{
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if (!callback(reinterpret_cast<Il2CppMethodPointer>(stack[i]), context))
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break;
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}
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}
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}
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std::string StackTrace::NativeStackTrace()
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{
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std::string stackTrace;
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#if !IL2CPP_TARGET_WINRT && !IL2CPP_TARGET_XBOXONE && !IL2CPP_TARGET_WINDOWS_GAMES
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HANDLE hProcess = GetCurrentProcess();
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BOOL result = SymInitialize(hProcess, NULL, TRUE);
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if (!result)
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return std::string();
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const uint32_t kMaxFrames = 128;
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void* stack[kMaxFrames];
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size_t frames = CaptureStackBackTrace(0, kMaxFrames, stack, NULL);
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for (size_t i = 0; i < frames; i++)
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{
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DWORD64 dwDisplacement = 0;
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char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR)];
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PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;
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pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
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pSymbol->MaxNameLen = MAX_SYM_NAME;
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if (SymFromAddr(hProcess, (DWORD64)stack[i], &dwDisplacement, pSymbol))
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{
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stackTrace += "at ";
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stackTrace += pSymbol->Name;
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stackTrace += "\n ";
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}
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}
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#endif // !IL2CPP_TARGET_WINRT && !IL2CPP_TARGET_XBOXONE && !IL2CPP_TARGET_WINDOWS_GAMES
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return stackTrace;
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}
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const void* StackTrace::GetStackPointer()
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{
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// TODO implement to avoid extra WalkStack calls
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return nullptr;
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}
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}
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}
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#endif
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