rom/exec/exec_intern.h

   1 /*
   2     Copyright © 1995-2011, 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 /* A private portion of ExecBase */
  27 struct IntExecBase
  28 {
  29     struct ExecBase pub;
  30     struct List ResetHandlers;                  /* Reset handlers list                                   */
  31     struct MinList AllocMemList;                /* Mungwall allocations list                             */
  32     struct SignalSemaphore MemListSem;          /* Memory list protection semaphore                      */
  33     struct SignalSemaphore LowMemSem;           /* Lock for single-threading low memory handlers         */
  34     APTR   KernelBase;                          /* kernel.resource base                                  */
  35     struct Library *DebugBase;                  /* debug.library base                                    */
  36     ULONG  PageSize;                            /* Memory page size                                      */
  37     ULONG  IntFlags;                            /* Internal flags, see below                             */
  38     struct MsgPort *ServicePort;                /* Message port for service task                         */
  39     struct MinList TaskStorageSlots;            /* List of free slots, always one element with next slot */
  40     struct Exec_PlatformData PlatformData;      /* Platform-specific stuff                               */
  41     char   AlertBuffer[ALERT_BUFFER_SIZE];      /* Buffer for alert text                                 */
  42 };
  43
  44 #define PrivExecBase(base) ((struct IntExecBase *)base)
  45 #define PD(base)   PrivExecBase(base)->PlatformData
  46 #define KernelBase PrivExecBase(SysBase)->KernelBase
  47 #define DebugBase  PrivExecBase(SysBase)->DebugBase
  48
  49 /* IntFlags */
  50 #define EXECF_MungWall   0x0001 /* This flag can't be changed at runtime */
  51 #define EXECF_StackSnoop 0x0002
  52
  53 /* Additional private task states */
  54 #define TS_SERVICE 128
  55
  56 /* Puddle size, in slots. Must be at least 1 */
  57 #define TASKSTORAGEPUDDLE 16
  58
  59 #if UseLVOs
  60 extern void __AROS_InitExecBase (void);
  61 #endif
  62
  63 struct ExecBase *PrepareExecBase(struct MemHeader *mh, struct TagItem *tags);
  64 void InitExecBase(struct ExecBase *SysBase, ULONG negsize, struct TagItem *msg);
  65 struct ExecBase *PrepareExecBaseMove(struct ExecBase *oldSysBase);
  66 BOOL Exec_PreparePlatform(struct Exec_PlatformData *pdata, struct TagItem *tags);
  67
  68 void InitKickTags(struct ExecBase *SysBase);
  69 UWORD GetSysBaseChkSum(struct ExecBase *sysbase);
  70 void SetSysBaseChkSum(void);
  71 BOOL IsSysBaseValid(struct ExecBase *sysbase);
  72
  73 IPTR cpu_SuperState();
  74
  75 void ServiceTask(struct ExecBase *SysBase);
  76
  77 #endif /* __EXEC_INTERN_H__ */