113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
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////////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: ProcessEntry.cpp
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//
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// Note: Process Only
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//
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#include "hal.h"
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int __cdecl _cinit(void);
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//////////////////////////////////////////////////////////////////////////////
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// debugging code. Put it here for now.
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void fail_assert(Class_System_String *message)
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{
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Struct_Microsoft_Singularity_V1_Services_DebugService::g_Print((bartok_char*)&message->m_firstChar,
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message->m_stringLength);
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//Struct_Microsoft_Singularity_V1_Services_DebugService::g_Break();
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Class_Microsoft_Singularity_DebugStub::g_Break();
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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BOOL KdDebuggerNotPresent;
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extern Class_System_RuntimeType * brtmainClass;
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extern int (*brtmain)(ClassVector_Class_System_String *args);
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extern int brtmainReturnsInt;
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#if ISA_IX86
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// Note: CallMain's return value is only meaningful if brtmainReturnsInt is true.
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// Example:
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// int ret = CallMain(args);
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// if (!MainReturnsInt()) ret = 0;
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__declspec(naked) int Class_Microsoft_Singularity_AppRuntime::
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g_CallMain(ClassVector_Class_System_String *args)
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{
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// To avoid creating an unmanaged stack frame, jmp directly to the main function:
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__asm {
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mov eax, brtmain;
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jmp eax;
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}
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}
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#endif
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bool Class_Microsoft_Singularity_AppRuntime::g_MainReturnsInt()
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{
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return (brtmainReturnsInt != 0);
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}
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void Class_Microsoft_Singularity_AppRuntime::g_SetDebuggerPresence(bool debuggerPresent)
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{
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KdDebuggerNotPresent = !debuggerPresent;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// These are the first instruction executed in a process.
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//
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extern "C" int32 __fastcall RuntimeEntryPoint(int threadIndex)
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{
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int32 ret = 0;
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if (threadIndex == -1) {
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// WARNING: When initializing an SIP, before making any other calls
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// into the HAL we need to make sure the HAL is initialized using
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// the following API.
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Class_Microsoft_Singularity_Isal_Isa::c_currentThreadOffset
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= Struct_Microsoft_Singularity_V1_Services_PlatformService::g_GetThreadContextOffset();
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Class_Microsoft_Singularity_Isal_Isa::c_currentCpuOffset
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= Struct_Microsoft_Singularity_V1_Services_PlatformService::g_GetProcessorContextOffset();
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}
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Struct_Microsoft_Singularity_ThreadContext * context =
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Class_Microsoft_Singularity_Processor::g_GetCurrentThreadContext();
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if (!Struct_Microsoft_Singularity_ThreadContext::m_IsInKernelMode(
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context)) {
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// fail assertion in uninitialized process mode:
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__debugbreak();
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}
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Struct_Microsoft_Singularity_ThreadContext::m_SetProcessMode(context);
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if (threadIndex == -1) {
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_cinit();
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Class_Microsoft_Singularity_Tracing::g_Initialize();
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// Class_Microsoft_Singularity_Tracing::g_Log(0, "RuntimeEntryPoint:Main");
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#ifndef NO_MONITORING
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Class_Microsoft_Singularity_Monitoring::g_Initialize();
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#endif
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ret = Class_Microsoft_Singularity_AppRuntime::g_AppStart(brtmainClass);
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}
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else {
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// Class_Microsoft_Singularity_Tracing::g_Log(0, "RuntimeEntryPoint:Thread");
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Class_System_Threading_Thread::g_ThreadStub(threadIndex);
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}
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Struct_Microsoft_Singularity_ThreadContext::m_SetKernelMode(context);
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return ret;
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}
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