rom/exec/exec_intern.h

   1 /*
   2     Copyright © 1995-2012, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Private data belonging to exec.library
   6     Lang:
   7 */
   8 #ifndef __EXEC_INTERN_H__
   9 #define __EXEC_INTERN_H__
  10
  11 /* This is a short file that contains a few things every Exec function needs */
  12
  13 #include <aros/debug.h> /* Needed for aros_print_not_implemented macro */
  14 #include <aros/system.h>
  15 #include <aros/libcall.h>
  16 #include <exec/execbase.h>
  17 #include <proto/exec.h>
  18
  19 #include <exec_platform.h>
  20
  21 #define ALERT_BUFFER_SIZE 2048
  22
  23 /* Internals of this structure are host-specific, we don't know them here */
  24 struct HostInterface;
  25
  26 struct SupervisorAlertTask
  27 {
  28     struct Task *   sat_Task;           /* Task that tries to display supervisor-level alerts    */
  29     BOOL            sat_IsAvailable;
  30     IPTR            sat_Params[2];
  31 };
  32
  33 /* A private portion of ExecBase */
  34 struct IntExecBase
  35 {
  36     struct ExecBase pub;
  37     struct List ResetHandlers;                  /* Reset handlers list                                   */
  38     struct Interrupt ColdResetHandler;          /* Reset handler that causes cold reboot */
  39     struct Interrupt WarmResetHandler;          /* Reset handler that causes warm reboot */
  40     struct MinList AllocMemList;                /* Mungwall allocations list                             */
  41     struct SignalSemaphore MemListSem;          /* Memory list protection semaphore                      */
  42     struct SignalSemaphore LowMemSem;           /* Lock for single-threading low memory handlers         */
  43     APTR   KernelBase;                          /* kernel.resource base                                  */
  44     struct Library *DebugBase;                  /* debug.library base                                    */
  45     ULONG  PageSize;                            /* Memory page size                                      */
  46     ULONG  IntFlags;                            /* Internal flags, see below                             */
  47     struct MsgPort *ServicePort;                /* Message port for service task                         */
  48     struct MinList TaskStorageSlots;            /* List of free slots, always one element with next slot */
  49     struct List AllocatorCtxList;               /* List of allocator contexts for system mem headers    */
  50     struct Exec_PlatformData PlatformData;      /* Platform-specific stuff                               */
  51     struct SupervisorAlertTask SAT;
  52     char   AlertBuffer[ALERT_BUFFER_SIZE];      /* Buffer for alert text                                 */
  53 };
  54
  55 #define PrivExecBase(base) ((struct IntExecBase *)base)
  56 #define PD(base)   PrivExecBase(base)->PlatformData
  57 #define KernelBase PrivExecBase(SysBase)->KernelBase
  58 #define DebugBase  PrivExecBase(SysBase)->DebugBase
  59
  60 /* IntFlags */
  61 #define EXECF_MungWall   0x0001 /* This flag can't be changed at runtime */
  62 #define EXECF_StackSnoop 0x0002
  63
  64 /* Additional private task states */
  65 #define TS_SERVICE 128
  66
  67 /* Puddle size, in slots. Must be at least 1 */
  68 #define TASKSTORAGEPUDDLE 16
  69
  70 #if UseLVOs
  71 extern void __AROS_InitExecBase (void);
  72 #endif
  73
  74 struct ExecBase *PrepareExecBase(struct MemHeader *mh, struct TagItem *tags);
  75 void InitExecBase(struct ExecBase *SysBase, ULONG negsize, struct TagItem *msg);
  76 struct ExecBase *PrepareExecBaseMove(struct ExecBase *oldSysBase);
  77 BOOL Exec_PreparePlatform(struct Exec_PlatformData *pdata, struct TagItem *tags);
  78
  79 void InitKickTags(struct ExecBase *SysBase);
  80 UWORD GetSysBaseChkSum(struct ExecBase *sysbase);
  81 void SetSysBaseChkSum(void);
  82 BOOL IsSysBaseValid(struct ExecBase *sysbase);
  83
  84 IPTR cpu_SuperState();
  85
  86 void ServiceTask(struct ExecBase *SysBase);
  87
  88 #endif /* __EXEC_INTERN_H__ */