初始化活动的进程列表。
#076 /* Initialize the Active Process List */
#077 InitializeListHead(&PsActiveProcessHead);
#078 KeInitializeGuardedMutex(&PspActiveProcessMutex);
#079
获取空闲的进程列表。在Reactos里，系统初始化进程，最终就是一个空闲进程。因此，只需要获取当前进程就行了。
#080 /* Get the idle process */
#081 PsIdleProcess = PsGetCurrentProcess();
#082
设置空闲进程锁。
#083 /* Setup the locks */
#084 PsIdleProcess->ProcessLock.Value = 0;
#085 ExInitializeRundownProtection(&PsIdleProcess->RundownProtect);
#086
初始化空闲进程列表。
#087 /* Initialize the thread list */
#088 InitializeListHead(&PsIdleProcess->ThreadListHead);
#089
清空空闲进程的内核使用时间。
#090 /* Clear kernel time */
#091 PsIdleProcess->Pcb.KernelTime = 0;
#092
下面这段，就是初始化与进程有关的对象。
#093 /* Initialize Object Initializer */
#094 RtlZeroMemory(&ObjectTypeInitializer,sizeof(ObjectTypeInitializer));
#095 ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
#096 ObjectTypeInitializer.InvalidAttributes = OBJ_OPENLINK |
#097 OBJ_PERMANENT |
#098 OBJ_EXCLUSIVE |
#099 OBJ_OPENIF;
#100 ObjectTypeInitializer.PoolType = NonPagedPool;
#101 ObjectTypeInitializer.Securityrequired = TRUE;
#102
初始化进程类型对象。
#103 /* Initialize the Process type */
#104 RtlInitUnicodeString(&Name,L"Process");
#105 ObjectTypeInitializer.DefaultNonPagedPoolCharge = sizeof(EPROCESS);
进程映射过程。
#106 ObjectTypeInitializer.GenericMapping = PspProcessMapping;
#107 ObjectTypeInitializer.ValidAccessMask = PROCESS_ALL_ACCESS;
进程删除过程。
#108 ObjectTypeInitializer.DeleteProcedure = PspDeleteProcess;
创建进程类型对象。
#109 ObCreateObjectType(&Name,&ObjectTypeInitializer,NULL,&PsProcessType);
#110
初始化线程类型对象。
#111 /* Initialize the Thread type */
#112 RtlInitUnicodeString(&Name,L"Thread");
#113 ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
#114 ObjectTypeInitializer.DefaultNonPagedPoolCharge = sizeof(ETHREAD);
#115 ObjectTypeInitializer.GenericMapping = PspThreadMapping;
#116 ObjectTypeInitializer.ValidAccessMask = THREAD_ALL_ACCESS;
#117 ObjectTypeInitializer.DeleteProcedure = PspDeleteThread;
#118 ObCreateObjectType(&Name,&PsThreadType);
#119
初始化工作集对象类型。
#120 /* Initialize the Job type */
#121 RtlInitUnicodeString(&Name,L"Job");
#122 ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
#123 ObjectTypeInitializer.DefaultNonPagedPoolCharge = sizeof(EJOB);
#124 ObjectTypeInitializer.GenericMapping = PspJobMapping;
#125 ObjectTypeInitializer.ValidAccessMask = JOB_OBJECT_ALL_ACCESS;
#126 ObjectTypeInitializer.DeleteProcedure = PspDeleteJob;
#127 ObCreateObjectType(&Name,&PsJobType);
#128
初始化工作集结构。
#129 /* Initialize job structures external to this file */
#130 PspInitializeJobStructures();
#131
#132 /* Initialize the Working Set data */
#133 InitializeListHead(&PspWorkingSetChangeHead.List);
#134 KeInitializeGuardedMutex(&PspWorkingSetChangeHead.Lock);
#135
初始化CID的句柄表，主要用来保存所有进程的句柄。
#136 /* Create the CID Handle table */
#137 PspCidTable = ExCreateHandleTable(NULL);
#138 if (!PspCidTable) return FALSE;
#139
#140 /* FIXME: Initialize LDT/VDM support */
#141
建立回收列表。
#142 /* Setup the reaper */
#143 ExInitializeWorkItem(&PspReaperWorkItem,PspReapRoutine,NULL);
#144
设置引导访问控制标志。
#145 /* Set the boot access token */
#146 PspBootAccessToken = (PTOKEN)(PsIdleProcess->Token.Value & ~MAX_FAST_REFS);
#147
#148 /* Setup default object attributes */
#149 InitializeObjectAttributes(&ObjectAttributes,
#150 NULL,
#151 0,
#152 NULL,
#153 NULL);
#154
创建初始化系统进程。
#155 /* Create the Initial System Process */
#156 Status = PspCreateProcess(&PspInitialSystemProcessHandle,
#157 PROCESS_ALL_ACCESS,
#158 &ObjectAttributes,
#159 0,
#160 FALSE,
#161 0,
#162 0,
#163 0,
#164 FALSE);
#165 if (!NT_SUCCESS(Status)) return FALSE;
#166
设置系统进程与对象关系。
#167 /* Get a reference to it */
#168 ObReferenceObjectByHandle(PspInitialSystemProcessHandle,
#169 0,
#170 PsProcessType,
#171 KernelMode,
#172 (PVOID*)&PsInitialSystemProcess,
#173 NULL);
#174
设置系统两个进程的名称。
#175 /* Copy the process names */
#176 strcpy(PsIdleProcess->ImageFileName,"Idle");
#177 strcpy(PsInitialSystemProcess->ImageFileName,"System");
#178
#179 /* Allocate a structure for the audit name */
#180 PsInitialSystemProcess->SeAuditProcessCreationInfo.ImageFileName =
#181 ExAllocatePoolWithTag(PagedPool,
#182 sizeof(OBJECT_NAME_INFORMATION),
#183 TAG_SEPA);
#184 if (!PsInitialSystemProcess->SeAuditProcessCreationInfo.ImageFileName)
#185 {
#186 /* Allocation Failed */
#187 return FALSE;
#188 }
#189
#190 /* Zero it */
#191 RtlZeroMemory(PsInitialSystemProcess->
#192 SeAuditProcessCreationInfo.ImageFileName,
#193 sizeof(OBJECT_NAME_INFORMATION));
#194
创建系统初始进程的工作线程。并且设置线程运行函数Phase1Initialization，这个线程就开始进入系统第1阶段初始化。
#195 /* Setup the system initialization thread */
#196 Status = PsCreateSystemThread(&SysThreadHandle,
#197 THREAD_ALL_ACCESS,
#198 &ObjectAttributes,
#199 0,
#200 NULL,
#201 Phase1Initialization,
#202 LoaderBlock);
#203 if (!NT_SUCCESS(Status)) return FALSE;
#204
创建一个对象与线程句柄关联在一起。
#205 /* Create a handle to it */
#206 ObReferenceObjectByHandle(SysThreadHandle,
#207 0,
#208 PsThreadType,
#209 KernelMode,
#210 (PVOID*)&SysThread,
#211 NULL);
#212 ZwClose(SysThreadHandle);
设置系统初始化进程已经准备好。
#213 SysThreadCreated = TRUE;
#214
#215 /* Return success */
#216 return TRUE;
#217 }
通过这个函数把进程的数据结构全部初始化，为最后创建初始化进程准备好了条件，这样当系统下一次任务调度时，就会进入系统第1阶段初始化，这样就系统就有两个进程在运行，第一个进程是引导进程，最终变为空闲进程。第二个进程是系统初始化进程。
现在就来分析第二阶段的进程管理器初始化函数PspInitPhase0，如下：
#001 BOOLEAN
#002 NTAPI
#003 PspInitPhase1()
#004 {
#005 /* Initialize the System DLL and return status of operation */
#006 if (!NT_SUCCESS(PspInitializeSystemDll())) return FALSE;
#007 return TRUE;
#008 }
第二阶段主要就是初始化系统的动态连接库，并且返回执行的操作结果。