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317 lines
11 KiB
C
317 lines
11 KiB
C
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/*
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File: CodeFragments.h
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Contains: Code Fragment Manager:
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System Programmer's Interface
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Written by: Erik L Eidt
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Copyright: <EFBFBD> 1992 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<1> 12/7/92 DRF first checked in
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<7> 11/11/92 ELE char ==> unsigned char
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<6> 11/3/92 NL Added back #include <Memory.h>, because it is definitely needed!
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Specifically, for the THz typedef, as well as for prototypes for
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functions (eg: GetZone()).
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<5> 10/28/92 WSK Remove "#include <Memory.h>" (not needed).
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Bracket "#include"s with "#ifndefs" so native debugger can
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be compiled using this file (by #defining the symbols and
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substituting its own definitions as required).
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<4> 10/22/92 DRF Get rid of inline glue from <3>. Moved it to a new file,
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CodeFragmentsTrap.h. This way we can still build GoNative, and
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only those folks who need to use the trap interface will have it
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defined.
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<3> 10/22/92 DRF Added inline glue for 68K to call FragCreateContext,
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FragPrepare, FragRelease, and FragRegister.
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<2> 10/6/92 jrc Changed "typedef struct" syntax to agree with Sean's
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InterfaceTool. Also changed "typedef enum".
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<7> 9/30/92 ELE change TCFLProcs from typedef to struct so CFLoader.h still not
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required
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<6> 9/30/92 ELE add TVersionNum type
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<5> 9/29/92 ELE make Dave F. happy!
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<4> 9/29/92 ELE remove include of CFLoader.h
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<3> 9/23/92 ELE change tab settings
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<2> 9/23/92 ELE had to add blank line onto end of file - MPW C was complaining about illegal character
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<1> 9/18/92 ELE first checked in
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*/
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#ifndef __CODEFRAGMENTS__
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#define __CODEFRAGMENTS__ 1
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#ifndef __TYPES__
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#include <Types.h>
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#endif
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#ifndef __FILES__
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#include <Files.h>
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#endif
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#ifndef __PROCESSES__
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#include <Processes.h>
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#endif
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#ifndef __MEMORY__
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#include <Memory.h>
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#endif
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// typedefs that probably should be in some other system header
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typedef long TaskID;
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typedef long TeamID;
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typedef long AddressSpaceID;
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typedef unsigned long LogicalAddress; // the type used for addresses in address spaces
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typedef unsigned long TVersionNum; /* Version number */
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typedef long FragContextID; // ID<49>s to identify the app, agent, task or team
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// to which a module should attached
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typedef LogicalAddress FragConnectionID; // the value interpreted only by the Frag
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typedef unsigned long Mask; // for flags
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typedef unsigned char SymClass; // for symbol class of export symbols
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typedef OSErr FragErr;
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// system & boot context value
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#define kSystemFragContext 1
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// default values for creating contexts
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#define kDefaultTaskID (long) (GetZone ()) // unique to an app
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#define kDefaultTeamID 1 // the BLUE world
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#define kDefaultAddrSpaceID 1 // the Mac address space
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enum { kDefaultContext = 0, kFragDebugApp = 1,
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kFragDebugAll = 2, kFragInSystem = 4 };
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// values for preparing objects
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enum { kDefaultPlacement, kUseMemInPlace };
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enum { kAttachStatic, kAttachDynamic };
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#define kNoLibName ((unsigned char *) 0)
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#define kNoLocator ((FragmentLocatorPtr) 0)
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#define kPowerPC 'pwpc'
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// values for releasing contexts
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#define kAllConnections ((FragConnectionID) 0)
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enum { kTaskID = 1, kTeamID = 2, kAddressSpace = 4, kDefaultRelease = kTaskID };
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enum { kAbnormalTerm, kNormalTerm };
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// for registering libraries with Frag
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enum { kAfterPMSP, kBeforePMSP };
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enum { kFullLib, kUpdateLib };
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enum { kRegister, kUnregister };
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// fragment locator description types
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enum { kOnDiskFlat, kInMem, kOnDiskSegmented };
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struct MemFragment {
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Ptr address;
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long length;
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Boolean inPlace;
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};
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typedef struct MemFragment MemFragment;
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struct DiskFragment {
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FSSpecPtr fileSpec;
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long offset;
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long length;
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};
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typedef struct DiskFragment DiskFragment;
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struct SegmentedFragment {
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FSSpecPtr fileSpec;
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OSType rsrcType;
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short rsrcID;
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};
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typedef struct SegmentedFragment SegmentedFragment;
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struct FragmentLocator{
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long where;
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union {
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MemFragment inMem;
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DiskFragment onDisk;
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SegmentedFragment inSegs;
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} u;
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};
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typedef struct FragmentLocator FragmentLocator, *FragmentLocatorPtr;
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// search function types
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enum { kAfterOthers, kBeforeOthers };
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typedef FragErr (*FragSearchProcPtr) ( Str63 pNamePtr,
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long updateLevel,
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short vRefNum,
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long parID,
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TVersionNum linkedVersion,
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TVersionNum oldDefVersion,
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OSType architecure,
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FragmentLocator *fragLoc,
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Boolean *isPrivate,
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long *position );
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//
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// System Programmer's Interface
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//
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// Functions that do actions
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//
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FragErr FragCreateContext ( FragContextID *contextID,
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THz heapZone,
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AddressSpaceID addressSpace,
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TaskID taskID,
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TeamID teamID,
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Mask contextFlags );
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FragErr FragPrepare ( FragContextID contextID,
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FragmentLocatorPtr fragLocator,
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Str63 libName,
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Boolean attachDynamic,
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OSType architecture,
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FragConnectionID *connectionID,
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LogicalAddress *entryAddress,
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Str63 errName );
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FragErr FragRelease ( FragContextID contextID,
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FragConnectionID connectionID,
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Mask releaseWhich,
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Boolean normalTerm );
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FragErr FragRegister ( FragmentLocatorPtr fragLocator,
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Boolean beforePMSP,
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long updateLevel,
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Str63 libName,
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Boolean unregister );
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FragErr FragAddSearchFcn ( FragSearchProcPtr SearchFcn,
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Boolean callFirst );
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//
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// System Programmer's Interface
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//
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// Functions that return information
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//
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struct RegisteredInfo{
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Str63 libName;
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FragmentLocator fragLocator;
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};
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typedef struct RegisteredInfo RegisteredInfo;
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FragErr FragGetRegisterInfo ( long libIndex,
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RegisteredInfo *registerInfo );
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FragErr FragResolveSymbol ( FragContextID contextID,
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FragConnectionID connectionID,
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Str255 symbolName,
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SymClass *symbolClass,
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long *symbolIndex,
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LogicalAddress *symbolAddress );
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struct ContextInfo {
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FragContextID contextID;
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THz heapZone;
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AddressSpaceID addressSpace;
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TaskID taskID;
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TeamID teamID;
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};
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typedef struct ContextInfo ContextInfo;
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FragErr FragGetContextInfo ( FragContextID contextID,
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Boolean nextContext,
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ContextInfo *contextInfo );
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struct ConnectionInfo {
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FragConnectionID connectionID;
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OSType loaderType;
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FragmentLocator fragLocator;
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long sectionCount;
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long symbolCount;
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struct TCFLProcs *theProcs;
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struct TCFLPrivateInfo *containerInfo;
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};
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typedef struct ConnectionInfo ConnectionInfo;
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FragErr FragGetConnectionInfo( FragContextID contextID,
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FragConnectionID connectionID,
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Boolean nextConnection,
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ConnectionInfo *connectionInfo );
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struct SectionInfo {
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LogicalAddress sectionAddress;
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long sectionLength;
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Boolean executable;
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Boolean writeable;
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long shareCount;
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};
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typedef struct SectionInfo SectionInfo;
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FragErr FragGetSectionInfo ( FragContextID contextID,
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FragConnectionID connectionID,
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long sectionIndex,
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long sectionCount,
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SectionInfo *sectionInfo );
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#define kUnresolvedSymbolAddress 0x0
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//
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// Error codes and other constants
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//
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enum {
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fragNoErr = 0,
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fragContextNotFound // contextID was not valid
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= -10000,
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fragConnectionIDNotFound, // connecionID was not valid
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fragSymbolNotFound, // symbol was not found in connection
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fragSectionNotFound, // section was not found
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fragLibNotFound, // library name not found in Frag registry
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fragHadUnresolveds, // loaded fragment had unacceptable unresolveds
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fragHadSoftUnresolveds, // loaded fragment has acceptable unresolveds
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fragNoMem, // out of memory for interal bookkeeping
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fragNoAddrSpace, // out of memory in user's address space for loadable section
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fragNoContextIDs, // no more context id<69>s
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fragObjectInitSeqErr, // order error during user initialization function invocation
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fragImportTooOld, // import library was too old and therefore incompatible
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fragImportTooNew, // import library was too new and therefore incompatible
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fragInitLoop, // circularity detected in mandatory initialization order
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fragInitRtnUsageErr, // boot library has initialization routine
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fragMgrInitErr // error in initailization of this manager
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};
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typedef long FragErrors;
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#define kFirstOrLastInTask 1
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#define kFirstOrLastInTeam 2
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#define kFirstOrLastInGroup 4
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typedef OSErr ConnectionInitializationRoutine ( Mask flags,
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FragConnectionID connectionID );
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typedef void ConnectionTerminationRoutine ( Mask flags,
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FragConnectionID connectionID );
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#endif /* __CODEFRAGMENTS__ */
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