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- /******************************************************************************
- * Copyright 1991 Advanced Micro Devices, Inc.
- *
- * This software is the property of Advanced Micro Devices, Inc (AMD) which
- * specifically grants the user the right to modify, use and distribute this
- * software provided this notice is not removed or altered. All other rights
- * are reserved by AMD.
- *
- * AMD MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS
- * SOFTWARE. IN NO EVENT SHALL AMD BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL
- * DAMAGES IN CONNECTION WITH OR ARISING FROM THE FURNISHING, PERFORMANCE, OR
- * USE OF THIS SOFTWARE.
- *
- * Comments about this software should be directed to udi@amd.com. If access
- * to electronic mail isn't available, send mail to:
- *
- * Advanced Micro Devices, Inc.
- * 29K Support Products
- * Mail Stop 573
- * 5900 E. Ben White Blvd.
- * Austin, TX 78741
- * 800-292-9263
- *****************************************************************************
- * DOS386 changes were merged into:
- * $Id: dos2udip.c,v 1.2 1993/12/23 04:44:38 cassidy Exp $
- * $Id: @(#)dos2udip.c 2.11, AMD
- */
-
- /* TIPIPCId components */
- #define TIPIPCIdCompany 0x0001 /* Company ID from AMD, others should change this */
- #define TIPIPCIdVersion 0x124 /* Version */
- #ifdef DOS386
- #define TIPIPCIdProduct 0x3 /* Product ID for DOS386 IPC */
- #else
- #define TIPIPCIdProduct 0x2 /* Product ID for non-DOS386 IPC */
- #endif
-
- #include <stdio.h>
- #include <dos.h>
-
- #ifdef HAVE_STDLIB_H
- # include <stdlib.h>
- #endif
-
- #ifdef HAVE_STRING_H
- # include <string.h>
- #else
- # include <strings.h>
- #endif
-
- #include <udiproc.h>
- #include <udidos.h>
- static FILE * fpstdout = stdout; /* where we write the information */
-
- #ifndef DOS386
- #pragma check_stack( off )
- #pragma check_pointer( off )
-
- /********************************************************
- * In non-DOS386 mode, a standard C PTR is just a far real ptr
- * so FARCPTR_TO_REALPTR and REALPTR_TO_FARCPTR are pass-thru
- ********************************************************/
- #define FARCPTR_TO_REALPTR(p) p
- #define REALPTR_TO_FARCPTR(p) p
-
- #define IPCFar far /* qualifier for pointer that can reach the real data used by IPC */
- #define REALNULL NULL
- typedef void far * FARCPTR;
-
- #else
- #include "malloc.h"
- #include "alloca.h"
- #include "pharlap.h"
- #include "realcopy.h"
-
- #define IPCFar _far /* qualifier for pointer that can reach the real data used by IPC */
- #define REALNULL (REALPTR) 0
- typedef void _far * FARCPTR;
-
-
- /********************************************************
- * In DOS386 protected mode, we have two types of pointers, near and far
- * near is a 32-bit pointer, ie a 32-bit offset from DS.
- * far is a 48-bit pointer, with an explicit segment register.
- * We want to be able to convert real mode pointers (16-bit seg, 16-bit ofst)
- * into these near and far protected mode pointers and vice versa.
- *
- * It is always possible to convert a real mode pointer to a far prot ptr.
- * (Pharlap provides an explicit segment that maps to the low 1 meg of memory).
- ********************************************************/
- FARCPTR REALPTR_TO_FARCPTR(REALPTR p);
-
- /********************************************************
- * The ability to convert from a real mode pointer to a near protected
- * pointer depends on being able to map converntional memory onto the
- * end of our data segment. This is NOT possible under DPMI 0.90
- * If we're not under DPMI 0.90,
- * REALPTR_TO_NEARCPTR takes a real ptr, and returns its offset
- * in the SS_DATA segment (using the fact that the 1 meg of real
- * memory was mapped to the SS_DATA by dx_map_physical).
- *
- ********************************************************/
- #define REALPTR_TO_NEARCPTR(rp) ((void *)(&conventional_memory[LINEARIZE(rp)]))
-
-
- /**********************************************************
- * LINEARIZE converts a segment:ofst pointer into a linear
- * addr between 0 and 1meg
- *********************************************************/
- #define LINEARIZE(rp) ((RP_SEG(rp)<<4) + RP_OFF(rp))
-
- /********************************************************
- * FARCPTR_TO_REALPTR converts a far protected ptr to a real ptr.
- * Naturally, only certain protected pointers can be converted
- * into real pointers (they must map to something in the
- * first 1 meg of memory). If it can't be converted, it's
- * a fatal error. This is a routine rather than a macro.
- * If we need to convert a near prot ptr to a real ptr,
- * this can be done by simply casting it to a far
- *
- ********************************************************/
- REALPTR FARCPTR_TO_REALPTR(FARPTR p);
-
- extern USHORT GetCS();
- extern USHORT GetDS();
-
-
- #endif /* DOS386 */
-
- /****************** External Prototypes *****************************/
-
- extern void TIPPrintUsage(char *arg);
-
- #ifndef DOS386
- extern UDIError UDIASMDisconnect UDIParams((
- UDISessionId Session, /* In */
- UDIBool Terminate, /* In */
- DOSTerm far *TermStruct /* In - not seen in UDIP */
- ));
- extern UDIError UDIASMConnect UDIParams((
- char *Configuration, /* In */
- UDISessionId *Session, /* Out */
- DOSTerm far *TermStruct /* In - not seen in UDIP */
- ));
-
- #endif
-
- /****************** Internal Prototypes *****************************/
-
- UDIError UDICCapabilities UDIParams((
- UDIUInt32 *TIPId, /* Out */
- UDIUInt32 *TargetId, /* Out */
- UDIUInt32 DFEId, /* In */
- UDIUInt32 DFE, /* In */
- UDIUInt32 *TIP, /* Out */
- UDIUInt32 *DFEIPCId, /* Out */
- UDIUInt32 *TIPIPCId, /* Out */
- char *TIPString /* Out */
- ));
-
- static unsigned short GetPSP( void );
- static void SetPSP( unsigned short PSPSegment );
- static unsigned int ComputeTSRSize(void *topofstack);
- static void SetupEnvironment(void);
- static void TerminateTIP UDIParams((DOSTerm IPCFar *TermStruct));
-
-
- /****************** External and Static Data *****************************/
- static int ConnectCount;
-
- #ifdef DOS386
-
- char *conventional_memory; /* pointer to first byte of conventinal memory */
- /* if 0, then conventional mem not mapped */
- USHORT our_tsr_psp; /* TIP's original PSP */
- USHORT dos_ext_psp; /* Dos extender PSP (TIP's parent) */
- extern REALPTR call_prot; /* These are in the module dostip.asm */
- extern USHORT code_selector;
- extern USHORT data_selector;
- extern USHORT segregblock[4];
- extern int end_real; /* marks end of stuff that must be placed in low mem */
- int * stack_table[3]; /* used when we need to get a new stack frame
- * to establish C context on each UDI call
- * but only if conventional memory didn't map */
- REALPTR real_basep; /* returned by realcopy */
- FARPTR prot_basep; /* returned by realcopy */
- USHORT rmem_adrp; /* returned by realcopy */
-
- extern char TIPName[]; /* in DOS386, defined in rmdata in dosdfe.asm */
- extern struct UDIVecRec TIPVecRec; /* in DOS386, defined in rmdata in dosdfe.asm */
-
-
-
- #else /* non-DOS386 static and external data */
-
- char TIPName[ FILENAME_MAX ]; /* in non-386 version, TIPName defined right here */
- struct UDIVecRec TIPVecRec = { /* in non-386 version, TIPVecRec defined right here */
- UDIDOSTIPRecognizer, /* Initialized in main */
- NULL, /* Pointer to next TIP */
- NULL, /* Pointer to previous TIP */
- TIPName, /* Name of the executable we were loaded as */
- UDIASMConnect,
- UDIASMDisconnect,
- UDISetCurrentConnection,
- UDICCapabilities,
- UDIGetErrorMsg,
- UDIGetTargetConfig,
- UDICreateProcess,
- UDISetCurrentProcess,
- UDIDestroyProcess,
- UDIInitializeProcess,
- UDIRead,
- UDIWrite,
- UDICopy,
- UDIExecute,
- UDIStep,
- UDIStop,
- UDIWait,
- UDISetBreakpoint,
- UDIQueryBreakpoint,
- UDIClearBreakpoint,
- UDIGetStdout,
- UDIGetStderr,
- UDIPutStdin,
- UDIStdinMode,
- UDIPutTrans,
- UDIGetTrans,
- UDITransMode
- };
- #endif
-
- struct UDIVecRec IPCFar * pTIPVecRec; /* pointer to TIPVecRec */
- /* in DOS386, this points to real memory */
- static RealUDIVecRecPtr IPCFar * UDIVecP;
-
- static int loaded_from_exp_file = 0;
-
-
- void do_exit(int errcode)
- {
- /* this routine normally just calls exit but in the special case
- * of DOS386 mode AND we were loaded from a .exp file, then we want
- * to exit in a different way by calling exp_return
- */
- #ifdef DOS386
- extern void _exp_return(int err);
- if (loaded_from_exp_file)
- _exp_return(errcode);
- else
- #endif
- /* normal non-DOS386 and non-exp_file exit */
- exit(errcode);
- }
-
-
- void do_dos_keep(int errcode, int tsrsize)
- {
- /* similar logic to do_exit above, but this time for dos_keep
- */
- #ifdef DOS386
- extern void _exp_return(int err);
- if (loaded_from_exp_file)
- _exp_return(errcode);
- else
- #endif
- /* normal non-DOS386 and non-exp_file dos_keep */
- _dos_keep( 0, tsrsize );
- }
-
- void get_tip_name(int argc, char *argv[])
- {
- /* This routine normally gets the Tipname from argv[1], but
- * in the special case of DOS386 and loaded as an exp file,
- * it gets the name from the stack
- */
-
- #ifdef DOS386
- extern char * _top;
-
- if ((GetCS() & 0xfffc) != SS_CODE) {
- /* a CS that is not SS_CODE indicates that we were
- loaded as a .exp file. In that case, we don't
- want to exit or do a TSR, instead we want to return
- back to the DFE using _exp_return.
- */
- loaded_from_exp_file = TRUE;
- strcpy(TIPName, _top+16);
- return;
- }
- #endif
-
- if ((argc!= 2) || (argv[1][0] == '-')) {
- TIPPrintUsage(argv[1]);
- do_exit( 1 );
- }
-
- strcpy( TIPName, argv[1] );
- }
-
-
- #ifdef DOS386
- REALPTR FARCPTR_TO_REALPTR(FARCPTR p) /* converts a FAR PROT ptr to a REALPTR */
- {
- REALPTR dummyrp;
- int err;
-
- /* returns a real mode pointer given a prot mode pointer p */
- err = _dx_toreal(p, 0, &dummyrp);
- if (err) {
- printf("Fatal Error _dx_toreal(%04x:%08x)\n", FP_SEG(p), FP_OFF(p));
- do_exit(err);
- }
- else
- return(dummyrp);
-
- }
-
-
- FARCPTR REALPTR_TO_FARCPTR(REALPTR rp)
- {
- FARCPTR dummyfp;
- FP_SET(dummyfp, LINEARIZE(rp), SS_DOSMEM);
- return(dummyfp);
- }
-
- /*****************
- * Routine used to create and initialize a stack for C context stack switching
- * (used only when conventional memory can't be mapped
- ****************/
- static void create_stack(int stack_index, int size_in_bytes)
- {
- int *p;
- int index_to_last_int;
-
- /* malloc appropriate size and point stack_table entry to second last word */
- p = (int *)malloc(size_in_bytes);
- if (p == 0) {
- printf("\nTIP: unable to malloc stacks\n");
- do_exit(1);
- }
- index_to_last_int = (size_in_bytes/sizeof(int)) - 1;
- stack_table[stack_index] = &p[index_to_last_int-1];
-
- /* and set last word to 0 (marked as free) */
- /* set second last word to stack size (used for alloca checking) */
- p[index_to_last_int-1] = size_in_bytes-8;
- p[index_to_last_int] = 0;
- }
- #endif
-
-
-
- static void TerminateTIP UDIParams((
- DOSTerm IPCFar *TermStruct /* In - not seen in UDIP */
- ))
- {
- /* Delink ourselves from the linked list of TIPs */
- if (pTIPVecRec->Next != REALNULL)
- ((struct UDIVecRec IPCFar *)REALPTR_TO_FARCPTR(pTIPVecRec->Next))->Prev = pTIPVecRec->Prev;
- if (pTIPVecRec->Prev != REALNULL)
- ((struct UDIVecRec IPCFar *)REALPTR_TO_FARCPTR(pTIPVecRec->Prev))->Next = pTIPVecRec->Next;
- else
- *UDIVecP = pTIPVecRec->Next; /* no previous TIP, set the interrupt vector
- to point to our Next TIP */
-
- #ifdef DOS386
- {
- if (loaded_from_exp_file) /* if we were loaded from an exp file, skip all this PSP stuff */
- return;
-
- /* Under DOSEXT, our PSP is parented by the DOSEXTENDER's PSP */
- /* We want to modify the DOSEXT's PSP to point to the DFE info */
- REALPTR ptr_dos_ext_psp_parent;
- REALPTR ptr_dos_ext_psp_termaddr;
-
- /* Set the dos_ext_psp's Parent PSP to the current PSP (ie, the DFE PSP)*/
- RP_SET(ptr_dos_ext_psp_parent,0x16, dos_ext_psp);
- *((USHORT _far *)(REALPTR_TO_FARCPTR(ptr_dos_ext_psp_parent))) = GetPSP();
-
- /* Set the dos_ext_psp's Terminate address to reasonable address in
- current PSP (DFE)'s program space */
- RP_SET(ptr_dos_ext_psp_termaddr,0xa, dos_ext_psp);
- *((ULONG _far *)(REALPTR_TO_FARCPTR(ptr_dos_ext_psp_termaddr))) = (ULONG) TermStruct->TermFunc;
- }
- #else
- /* Set our TSR's PSP's Parent PSP to the current PSP */
- fflush(fpstdout);
-
- *(unsigned _far *)(((long)_psp << 16) + 0x16) = GetPSP();
-
- /* Set our TSR's PSP's Terminate address to reasonable address in
- current PSP's program space */
- /*(void _far (_far *) (void))(((long)_psp << 16) + 0xa) = ExitAddr;*/
- *(void (_far *(_far *))(void))(((long)_psp << 16) + 0xa) =
- TermStruct->TermFunc;
- #endif
-
- /* Change DOS's notion of what the current PSP is to be our TSR's PSP */
- #ifdef DOS386
- SetPSP(our_tsr_psp);
- /* Under Dosext, termination will chain back from our_psp to DOSEXT PSP */
- /* and then back to the DFE (since we modified the DOSEXT PSP above) */
- #else
- SetPSP(_psp );
- #endif
-
- /* Terminate the program by using DOSTerminate 0x21/0x4c. Execution
- will resume at the Terminate address set above with ALL REGISTERS
- UNKNOWN especially SS:SP, DS, ES, etc */
- bdos( 0x4c, 0, 0 );
- }
-
- UDIError UDICConnect UDIParams((
- char *Configuration, /* In */
- UDISessionId *Session, /* Out */
- DOSTerm IPCFar *TermStruct /* In - not seen in UDIP */
- ))
- {
- UDIError err;
-
- if ((err = UDIConnect( Configuration, Session )) <= UDINoError)
- ConnectCount++;
-
- if (ConnectCount == 0) { /* Terminate the unused TIP */
- /* Save the error status in the TermStruct */
- TermStruct->retval = err;
-
- TerminateTIP( TermStruct ); /* Never returns */
- }
-
- return err;
- }
-
- UDIError UDICDisconnect UDIParams((
- UDISessionId Session, /* In */
- UDIBool Terminate, /* In */
- DOSTerm IPCFar *TermStruct /* In - not seen in UDIP */
- ))
- {
- UDIError err;
-
- /* Disconnect via the real TIP */
- if ((err = UDIDisconnect( Session, Terminate )) == UDINoError)
- ConnectCount--;
-
- if (Terminate != UDIContinueSession && ConnectCount == 0) {
- /* Terminate the unused TIP */
- /* Save the error status in the TermStruct */
- TermStruct->retval = err;
-
- TerminateTIP( TermStruct ); /* Never returns */
- }
-
- return err;
- }
-
- UDIError UDICCapabilities UDIParams((
- UDIUInt32 *TIPId, /* Out */
- UDIUInt32 *TargetId, /* Out */
- UDIUInt32 DFEId, /* In */
- UDIUInt32 DFE, /* In */
- UDIUInt32 *TIP, /* Out */
- UDIUInt32 *DFEIPCId, /* Out */
- UDIUInt32 *TIPIPCId, /* Out */
- char *TIPString /* Out */
- ))
- {
- UDIError err;
-
- err = UDICapabilities( TIPId, TargetId, DFEId, DFE, TIP,
- DFEIPCId, TIPIPCId, TIPString );
-
- *TIPIPCId = (((UDIUInt32)TIPIPCIdCompany) << 16) |
- (TIPIPCIdProduct << 12) | TIPIPCIdVersion;
-
- return err;
- }
-
-
- static RealUDIVecRecPtr IPCFar * AllocateIntVect()
- {
- RealUDIVecRecPtr IPCFar * VecP;
-
- /* Try and find a vector that is unused */
- for (VecP = (RealUDIVecRecPtr IPCFar *)(REALPTR_TO_FARCPTR(0x60*4));
- VecP <= (RealUDIVecRecPtr IPCFar *)(REALPTR_TO_FARCPTR(0x66*4));
- VecP++) {
- if (*VecP == REALNULL)
- return VecP;
- }
-
- return NULL;
- }
-
- static RealUDIVecRecPtr IPCFar * FindIntVect()
- {
- RealUDIVecRecPtr IPCFar * VecP;
- union rec recognizer;
-
- InitRecognizer( &recognizer );
-
- /* Try and find a vector that matches the passed in recognizer */
- for (VecP = (RealUDIVecRecPtr IPCFar *)(REALPTR_TO_FARCPTR(0x60*4));
- VecP <= (RealUDIVecRecPtr IPCFar *)(REALPTR_TO_FARCPTR(0x66*4));
- VecP++) {
- if ((*VecP != REALNULL) && ((struct UDIVecRec IPCFar *) REALPTR_TO_FARCPTR(*VecP))->recognizer.l == recognizer.l)
- return VecP;
- }
-
- return NULL;
- }
-
- static void SetupEnvironment(void)
- {
- #ifndef DOS386
- /* if not DOS386, nothing to do except set up the
- pointer to TIPVecRec
- */
- pTIPVecRec = &TIPVecRec;
-
- #else /* setup code for DOS386 */
- FARPTR dummyfp;
- REALPTR dummyrp;
- ULONG dummyint;
- REALPTR IPCFar *p;
- REALPTR ptr_dos_ext_psp;
- int err;
- int i;
-
- /**************************************************************
- * There are some initialization things that we might as well do before
- * we do the realcopy down below. Here we do some initialization
- * of TIPVecRec and the code_selector and data_selector and call_prot
- * routine address that are then used by the real mode code.
- ****************************************************************/
-
- _dx_rmlink_get(&call_prot, &dummyrp, &dummyint, &dummyfp);
- code_selector = GetCS();
- data_selector = GetDS();
- for (i=0; i<4; i++)
- segregblock[i] = data_selector;
-
- /******************************************************
- * Map first 1 meg of physical memory into our ds: address space
- * This is 256 4K pages starting at physical address 0.
- * The pointer conventional_memory is its mapped offset in our data space
- * If this mapping cannot be done (because we are running under DPMI 0.90)
- * then we will have to access dos memory using far pointers and do some
- * copies of data down in the d386 routines.
- ********************************************************/
- err = _dx_map_phys(data_selector, (ULONG) 0, (ULONG) 256, (ULONG *)&conventional_memory);
- if (err)
- conventional_memory = NULL;
-
- #ifdef DEBUG
- if (err)
- printf("TIP: Unable to map conventional memory %d\n", err);
- else
- printf("TIP: Successfully mapped conventional memory\n");
- #endif
-
- if (!conventional_memory) {
- /* mapping conventional memory did not work */
- /* need to set up stacks to switch to at UDI call time */
- create_stack(0, 64000);
- create_stack(1, 10000);
- stack_table[2] = 0; /* end of list */
- }
-
- /* do a realcopy to copy all the things that must be reachable
- * from real mode into a real mode segment. For simplicity,
- * we just always assume that REALBREAK might not work.
- * This is only used at TIP INIT time and the performance impact is negligent.
- */
- err = realcopy(0, /* real mode stuff was linked first */
- end_real, /* where the real mode stuff ends */
- &real_basep,
- &prot_basep,
- &rmem_adrp);
-
- if (err) {
- printf("\nTIP: realcopy call failed;\n");
- printf( " Probable cause: insufficient free conventional memory.\n");
- do_exit(1);
- }
-
-
- /* The prot_basep that was returned above must now be used
- to access from protected mode the data elements that were
- copied above. In particular, we create a pointer to the
- copied TIPVecRec and use that.
- */
- pTIPVecRec = (struct UDIVecRec IPCFar *) (prot_basep + (ULONG) &TIPVecRec);
-
-
-
- /**************************************************************
- * The real_basep that was returned from realcopy must be used as
- * the code segment pointer of all the real mode routines.
- * and so must be patched into TIPVecRec.
- * real_basep is returned by realcopy such that the offset parts
- * (as assembled in in the module dostip.asm) can remain unchanged.
- * So we just need to patch the real_basep seg into each of those pointers
- ***************************************************************/
- for (p = (REALPTR IPCFar *)&pTIPVecRec->exeName;
- p<= (REALPTR IPCFar *)&pTIPVecRec->UDITransMode; p++) {
- RP_SET(*p, RP_OFF(*p), RP_SEG(real_basep));
- }
-
- /*****************************************************
- Store our PSP (real segment) away for later termination
- and also the dos extender's PSP (our parent). We get this by
- building a real pointer with seg = our_tsr_psp, ofst = 0x16,
- and then derefencing that
- *****************************************************/
- our_tsr_psp = GetPSP();
- RP_SET(ptr_dos_ext_psp, 0x16, our_tsr_psp);
- dos_ext_psp = *((USHORT _far *)(REALPTR_TO_FARCPTR(ptr_dos_ext_psp)));
-
- #endif /* end of DOS386 setup code */
- }
-
-
- static unsigned int ComputeTSRSize(void *topofstack)
- {
- #ifndef DOS386
- /* Real mode program, compute program size */
- /* Huge pointers force compiler to do segment arithmetic for us. */
- static char _huge *tsrstack;
- static char _huge *tsrbottom;
- /* Initialize stack and bottom of program. */
- tsrstack = (char huge *)topofstack;
- FP_SEG( tsrbottom ) = _psp;
- FP_OFF( tsrbottom ) = 0;
-
- /* Program size is:
- * top of stack
- * - bottom of program (converted to paragraphs) (using huge math)
- * + one extra paragraph
- */
- return((unsigned int) (((tsrstack - tsrbottom) >> 4) + 1));
- #else
- /*********************
- In DOS386 mode, the TSR size consists of the real memory that
- is used by the Pharlap DOS extender and the small amount of real memory
- used by UDI. The number 6400 seems to be a good guess for now.
- This might have to be adjusted with newer versions of Dos extender, etc.
- I wonder if there is some way to compute this number accurately.
- **********************/
- return(6400); /* our best guess for now */
- #endif
- }
-
- main(int argc, char *argv[])
- {
- unsigned tsrsize;
-
- get_tip_name(argc, argv); /* get name from argv or whereever */
-
- #ifdef TSRDEBUG
- {
- int i;
- printf( "Invoked with %d arguments\n", argc );
- for (i = 0; i < argc; i++)
- printf( "%s ", argv[i] );
- printf( "\n" );
- }
- #endif
-
- InitRecognizer(&TIPVecRec.recognizer );
-
- SetupEnvironment(); /* do some setup specific to DOS or DOS386 */
-
-
- /* See if the interrupt vector has already been selected for us */
- if ((UDIVecP = FindIntVect()) == NULL) {
- if ((UDIVecP = AllocateIntVect()) == NULL)
- return -1; /* No interrupt vectors available */
- }
- else { /* Interrupt vector already allocated */
- pTIPVecRec->Next = *UDIVecP; /* always store a real ptr there */
- ((struct UDIVecRec IPCFar *) REALPTR_TO_FARCPTR(pTIPVecRec->Next))->Prev = FARCPTR_TO_REALPTR(pTIPVecRec);
- }
-
- *UDIVecP = FARCPTR_TO_REALPTR(pTIPVecRec);
-
- tsrsize = ComputeTSRSize(&argv); /* pass it pointer to argv (top of stack) */
-
- /* We are now ready to support DFEs. If we wish to debug back-ends,
- though, we are probably running CodeView with the TIP right now
- and don't want to really TSR because CV will shut down at that
- point. Instead, let's spawn a new DOS shell from which we can
- start a DFE (after setting a breakpoint in the TIP somewhere).
- */
- #ifdef TSRDEBUG
- system( getenv( "COMSPEC" ) );
- #else
- do_dos_keep(0, tsrsize);
- #endif
-
- return 0;
- }
-
-
- #define GET_PSP_DOS2 0x51
- #define GET_PSP_DOS3 0x62
- #define SET_PSP 0x50
-
- static unsigned short GetPSP( void )
- {
- union REGS regs;
-
- if (_osmajor == 2)
- return 0;
- #ifdef DOS386
- regs.h.ah = GET_PSP_DOS2; /* Phar Lap requires we use this to get real segment */
- #else
- regs.h.ah = GET_PSP_DOS3;
- #endif
- intdos( ®s, ®s );
- return regs.x.bx;
- }
-
- static void SetPSP( unsigned short PSPSegment )
- {
- union REGS regs;
-
- regs.h.ah = SET_PSP;
- regs.x.bx = PSPSegment;
- intdos( ®s, ®s );
- }
-
-
- #ifdef DOS386
- /*============================ DOS386 glue routines ====================================*/
-
- /****************************************************************
- * In DPMI Compatibility mode, when we get to this point, the only
- * thing that is on the stack is the saved far stack pointer (which actually
- * points back to the real mode stack). Remember in pmstub in dostip.asm,
- * we switched stack pointers so that SS = DS for C level requirements.
- *
- * The INCOMING_PARAMS macro defines a packed structure which expresses what the
- * real mode stack really looks like when we get to each dos386 glue routine.
- * The STACK_PAD is all the extra stuff that was on the stack because of the switching
- * from real to protected mode, etc.
- * The packed structure can be used to express where things really are on the stack
- * because the DFE's MSC compiler will push things differently from the hc386 compiler.
- ********************************************************************/
- typedef _packed struct {
- FARPTR ret_to_dosext;
- USHORT zero_word;
- USHORT saved_di;
- USHORT saved_si;
- USHORT saved_bp;
- USHORT saved_ds;
- ULONG ret_to_dfe;
- } STACK_PAD;
-
- /* The following macro defines the packed structure for the incoming parameters
- * including the STACK_PAD stuff noted above. It is used by those few d386_
- * routines that do not need converted pointers to avoid non-use warnings
- */
- #define INCOMING_PARAMS_NO_PTR(params) \
- _packed struct { \
- STACK_PAD padding; \
- params \
- } _far *in = rm_stk_ptr; \
-
-
- /* The following macro defines the packed structure for the incoming parameters
- * (see above) and also defines a local structure for storing the converted local
- * pointers. Most d386_ routines use this macro.
- */
- #define INCOMING_PARAMS(params) \
- INCOMING_PARAMS_NO_PTR(params) \
- struct { \
- params \
- int dummy; /* to avoid warnings and for local count */ \
- } local ; /* local structure for holding converted pointers */ \
- int stackspace = stacksize; \
-
-
-
- /**************************************************************
- * The following macros handle the creation of near C pointers from real pointers
- * so that the real UDI routines can be called with near C pointers.
- * Different macros are called for IN pointers vs. OUT pointers and
- * for PREPROCESSING (before the real UDI call) and POSTPROCESSING (cleanup
- * after returning from the real UDI call).
- *
- * If conventional_memory has been mapped, the following happens
- * PREPROCESS (IN or OUT ptr) sets local.var pointer to the mapped pointer
- * nothing to copy so count is ignored
- * POSTPROCESS nothing to do
- *
- * If conventional_memory has not been mapped, then
- * PREPROCESS (IN ptr) does alloca of count to get local pointer
- * copies data into local allocated area
- * PREPROCESS (OUT ptr) does alloca of count to get local pointer
- * no copy of data yet.
- * POSTPROCESS (OUT ptr) copies data from local allocated area back to real mem
- *
- * Note that a few UDI routines have pointers that are both IN and OUT
- */
-
- /* the following is used in a couple of places in the macros */
- #define ALLOC_LOCAL(var, count) \
- if ((stackspace -= count) <= 500) return(UDIErrorIPCLimitation); \
- local.var = alloca(count);
-
- #define INPTR_PREPROCESS_COUNT(var,count) \
- if (conventional_memory) { \
- local.var = REALPTR_TO_NEARCPTR(in->var); \
- } \
- else { \
- local.dummy = count; /* avoid double evaluation if count is expression */ \
- ALLOC_LOCAL(var, local.dummy); \
- movedata(SS_DOSMEM, LINEARIZE(in->var), data_selector, (unsigned int) local.var, local.dummy); \
- }
-
-
- #define INPTR_PREPROCESS(var) INPTR_PREPROCESS_COUNT(var, sizeof(*(in->var)))
-
- #define OUTPTR_PREPROCESS_COUNT(var,count) \
- if (conventional_memory) \
- local.var = REALPTR_TO_NEARCPTR(in->var); \
- else { \
- ALLOC_LOCAL(var,count); \
- }
-
- #define OUTPTR_PREPROCESS(var) OUTPTR_PREPROCESS_COUNT(var, sizeof(*(in->var)))
-
- #define OUTPTR_POSTPROCESS_COUNT(var,count) \
- if (!conventional_memory) {\
- movedata(data_selector, (unsigned int)local.var, SS_DOSMEM, LINEARIZE(in->var), count); \
- }
-
- #define OUTPTR_POSTPROCESS(var) OUTPTR_POSTPROCESS_COUNT(var, sizeof(*(in->var)))
-
-
-
- /* The following routine computes the length of a string that
- * is pointed to by a real pointer. This is only needed when
- * we cannot map real mode memory at the end of the DS.
- */
- int realptr_strlen(REALPTR rp)
- {
- char _far *farp;
- char _far *start;
-
- farp = (char _far *) REALPTR_TO_FARCPTR(rp); /* need to use a far c ptr */
- start = farp;
- while (*farp++); /* advance until a 0 located */
- return(FP_OFF(farp) - FP_OFF(start));
- }
-
- /*======================== Glue Routines ============================================*/
-
-
- UDIError d386_UDIConnect (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- char *Configuration; /* In */
- UDISessionId *Session; /* Out */
- DOSTerm *TermStruct; /* In - not seen in UDIP */
- )
- UDIError err;
-
- INPTR_PREPROCESS_COUNT(Configuration, realptr_strlen((REALPTR)(in->Configuration))+1);
- OUTPTR_PREPROCESS(Session);
-
- err = UDICConnect( /* for UDIConnect, special case, call UDICConnect in dos2udip.c */
- local.Configuration,
- local.Session,
- REALPTR_TO_FARCPTR((REALPTR)in->TermStruct)
- );
-
- OUTPTR_POSTPROCESS(Session);
- return(err);
- }
-
- UDIError d386_UDIDisconnect (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDISessionId Session; /* In */
- UDIBool Terminate;
- DOSTerm *TermStruct; /* In - not seen in UDIP */
- )
- UDIError err;
-
- local.dummy = 0; /* avoids warning */
- err = UDICDisconnect( /* need to call UDICDisconnect */
- in->Session,
- in->Terminate,
- REALPTR_TO_FARCPTR((REALPTR)in->TermStruct)
- );
- return(err);
-
- }
-
-
- UDIError d386_UDISetCurrentConnection (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS_NO_PTR(
- UDISessionId Session; /* In */
- )
- return(UDISetCurrentConnection(in->Session));
- }
-
-
- UDIError d386_UDICapabilities (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIUInt32 *TIPId; /* Out */
- UDIUInt32 *TargetId; /* Out */
- UDIUInt32 DFEId; /* In */
- UDIUInt32 DFE; /* In */
- UDIUInt32 *TIP; /* Out */
- UDIUInt32 *DFEIPCId; /* Out */
- UDIUInt32 *TIPIPCId; /* Out */
- char *TIPString; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS(TIPId);
- OUTPTR_PREPROCESS(TargetId);
- OUTPTR_PREPROCESS(TIP);
- OUTPTR_PREPROCESS(DFEIPCId);
- OUTPTR_PREPROCESS(TIPIPCId);
- OUTPTR_PREPROCESS_COUNT(TIPString, 100); /* max TIP string? */
-
- err = UDICCapabilities( /* another special case call UDICapabilities */
- local.TIPId,
- local.TargetId,
- in->DFEId,
- in->DFE,
- local.TIP,
- local.DFEIPCId,
- local.TIPIPCId,
- local.TIPString
- );
-
- OUTPTR_POSTPROCESS(TIPId);
- OUTPTR_POSTPROCESS(TargetId);
- OUTPTR_POSTPROCESS(TIP);
- OUTPTR_POSTPROCESS(DFEIPCId);
- OUTPTR_POSTPROCESS(TIPIPCId);
- OUTPTR_POSTPROCESS_COUNT(TIPString, strlen(local.TIPString)+1);
-
- return(err);
- }
-
-
- UDIError d386_UDIGetErrorMsg (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIError ErrorCode; /* In */
- UDISizeT MsgSize; /* In */
- char *Msg; /* Out */
- UDISizeT *CountDone; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS_COUNT(Msg, in->MsgSize);
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDIGetErrorMsg(
- in->ErrorCode,
- in->MsgSize,
- local.Msg, /* pointers made local */
- local.CountDone
- );
-
- OUTPTR_POSTPROCESS_COUNT(Msg, *(local.CountDone)+1);
- OUTPTR_POSTPROCESS(CountDone);
- return(err);
- }
-
-
-
- UDIError d386_UDIGetTargetConfig (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIMemoryRange *KnownMemory; /* Out */
- UDIInt *NumberOfRanges; /* In/Out */
- UDIUInt32 *ChipVersions; /* Out */
- UDIInt *NumberOfChips; /* In/Out */
- )
- UDIError err;
-
- INPTR_PREPROCESS(NumberOfRanges);
- INPTR_PREPROCESS(NumberOfChips);
- OUTPTR_PREPROCESS_COUNT(KnownMemory, *(local.NumberOfRanges) * sizeof(UDIMemoryRange));
- OUTPTR_PREPROCESS_COUNT(ChipVersions, *(local.NumberOfChips) * sizeof(UDIUInt32));
-
- err = UDIGetTargetConfig(
- local.KnownMemory,
- local.NumberOfRanges,
- local.ChipVersions,
- local.NumberOfChips
- );
-
- OUTPTR_POSTPROCESS(NumberOfRanges);
- OUTPTR_POSTPROCESS(NumberOfChips);
- OUTPTR_POSTPROCESS_COUNT(KnownMemory, *(local.NumberOfRanges) * sizeof(UDIMemoryRange));
- OUTPTR_POSTPROCESS_COUNT(ChipVersions, *(local.NumberOfChips) * sizeof(UDIUInt32));
-
- return(err);
- }
-
- UDIError d386_UDICreateProcess (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIPId *PId; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS(PId);
-
- err = UDICreateProcess(
- local.PId
- );
-
- OUTPTR_POSTPROCESS(PId);
- return(err);
- }
-
- UDIError d386_UDISetCurrentProcess (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS_NO_PTR(
- UDIPId PId; /* In */
- )
-
- return(UDISetCurrentProcess(
- in->PId
- ));
- }
-
- UDIError d386_UDIDestroyProcess (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS_NO_PTR(
- UDIPId PId; /* In */
- )
-
- return(UDIDestroyProcess(
- in->PId
- ));
- }
-
-
-
- UDIError d386_UDIInitializeProcess (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIMemoryRange *ProcessMemory; /* In */
- UDIInt NumberOfRanges; /* In */
- UDIResource EntryPoint; /* In */
- CPUSizeT *StackSizes; /* In */
- UDIInt NumberOfStacks; /* In */
- char *ArgString; /* In */
- )
- UDIError err;
-
- INPTR_PREPROCESS_COUNT(ProcessMemory, in->NumberOfRanges * sizeof(UDIMemoryRange));
- INPTR_PREPROCESS_COUNT(StackSizes, in->NumberOfStacks * sizeof(CPUSizeT));
- INPTR_PREPROCESS_COUNT(ArgString, realptr_strlen((REALPTR)(in->ArgString))+1);
-
- err = UDIInitializeProcess(
- local.ProcessMemory,
- in->NumberOfRanges,
- in->EntryPoint,
- local.StackSizes,
- in->NumberOfStacks,
- local.ArgString
- );
-
- return(err);
- }
-
-
-
- UDIError d386_UDIRead (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIResource From; /* In */
- UDIHostMemPtr To; /* Out */
- UDICount Count; /* In */
- UDISizeT Size; /* In */
- UDICount *CountDone; /* Out */
- UDIBool HostEndian; /* In */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS_COUNT(To, in->Count * in->Size);
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDIRead(
- in->From,
- local.To,
- in->Count,
- in->Size,
- local.CountDone,
- in->HostEndian
- );
-
- OUTPTR_POSTPROCESS_COUNT(To, *(local.CountDone) * in->Size);
- OUTPTR_POSTPROCESS(CountDone);
-
- return(err);
- }
-
-
-
- UDIError d386_UDIWrite (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIHostMemPtr From; /* In */
- UDIResource To; /* In */
- UDICount Count; /* In */
- UDISizeT Size; /* In */
- UDICount *CountDone; /* Out */
- UDIBool HostEndian; /* In */
- )
- UDIError err;
-
- INPTR_PREPROCESS_COUNT (From, in->Count * in->Size);
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDIWrite(
- local.From,
- in->To,
- in->Count,
- in->Size,
- local.CountDone,
- in->HostEndian
- );
-
- OUTPTR_POSTPROCESS(CountDone);
-
- return(err);
-
- }
-
-
- UDIError d386_UDICopy (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIResource From; /* In */
- UDIResource To; /* In */
- UDICount Count; /* In */
- UDISizeT Size; /* In */
- UDICount *CountDone; /* Out */
- UDIBool Direction; /* In */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDICopy(
- in->From,
- in->To,
- in->Count,
- in->Size,
- local.CountDone,
- in->Direction
- );
-
- OUTPTR_POSTPROCESS(CountDone);
-
- return(err);
- }
-
-
- UDIError d386_UDIExecute (void _far * rm_stk_ptr, int stacksize)
- {
- /* no incoming parameters */
-
- return(UDIExecute());
- }
-
-
- UDIError d386_UDIStep (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS_NO_PTR(
- UDIUInt32 Steps; /* In */
- UDIStepType StepType; /* In */
- UDIRange Range; /* In */
- )
- UDIError err;
-
- err = UDIStep(
- in->Steps,
- in->StepType,
- in->Range
- );
-
- return(err);
- }
-
-
-
- UDIVoid d386_UDIStop (void _far * rm_stk_ptr, int stacksize)
- {
- /* no incoming parameters, no return value */
- UDIStop();
- }
-
-
-
-
- UDIError d386_UDIWait (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIInt32 MaxTime; /* In */
- UDIPId *PId; /* Out */
- UDIUInt32 *StopReason; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS(PId);
- OUTPTR_PREPROCESS(StopReason);
-
- err = UDIWait(
- in->MaxTime,
- local.PId,
- local.StopReason
- );
-
- OUTPTR_POSTPROCESS(PId);
- OUTPTR_POSTPROCESS(StopReason);
-
- return(err);
- }
-
-
-
- UDIError d386_UDISetBreakpoint (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIResource Addr; /* In */
- UDIInt32 PassCount; /* In */
- UDIBreakType Type; /* In */
- UDIBreakId *BreakId; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS(BreakId);
-
- err = UDISetBreakpoint(
- in->Addr,
- in->PassCount,
- in->Type,
- local.BreakId
- );
-
- OUTPTR_POSTPROCESS(BreakId);
-
- return(err);
- }
-
-
- UDIError d386_UDIQueryBreakpoint (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIBreakId BreakId; /* In */
- UDIResource *Addr; /* Out */
- UDIInt32 *PassCount; /* Out */
- UDIBreakType *Type; /* Out */
- UDIInt32 *CurrentCount; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS(Addr);
- OUTPTR_PREPROCESS(PassCount);
- OUTPTR_PREPROCESS(Type);
- OUTPTR_PREPROCESS(CurrentCount);
-
- err = UDIQueryBreakpoint(
- in->BreakId,
- local.Addr,
- local.PassCount,
- local.Type,
- local.CurrentCount
- );
-
- OUTPTR_POSTPROCESS(Addr);
- OUTPTR_POSTPROCESS(PassCount);
- OUTPTR_POSTPROCESS(Type);
- OUTPTR_POSTPROCESS(CurrentCount);
-
- return(err);
- }
-
-
-
- UDIError d386_UDIClearBreakpoint (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS_NO_PTR(
- UDIBreakId BreakId; /* In */
- )
- return(UDIClearBreakpoint(
- in->BreakId
- ));
-
- }
-
- UDIError d386_UDIGetStdout (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIHostMemPtr Buf; /* Out */
- UDISizeT BufSize; /* In */
- UDISizeT *CountDone; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS_COUNT(Buf, in->BufSize);
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDIGetStdout(
- local.Buf,
- in->BufSize,
- local.CountDone
- );
-
- OUTPTR_POSTPROCESS_COUNT(Buf, *(local.CountDone));
- OUTPTR_POSTPROCESS(CountDone);
-
- return(err);
- }
-
-
- UDIError d386_UDIGetStderr (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIHostMemPtr Buf; /* Out */
- UDISizeT BufSize; /* In */
- UDISizeT *CountDone; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS_COUNT(Buf, in->BufSize);
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDIGetStderr(
- local.Buf,
- in->BufSize,
- local.CountDone
- );
-
- OUTPTR_POSTPROCESS_COUNT(Buf, *(local.CountDone));
- OUTPTR_POSTPROCESS(CountDone);
-
- return(err);
- }
-
-
-
- UDIError d386_UDIPutStdin (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIHostMemPtr Buf; /* In */
- UDISizeT Count; /* In */
- UDISizeT *CountDone; /* Out */
- )
- UDIError err;
-
- INPTR_PREPROCESS_COUNT(Buf, in->Count);
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDIPutStdin(
- local.Buf,
- in->Count,
- local.CountDone
- );
-
- OUTPTR_POSTPROCESS(CountDone);
-
- return(err);
- }
-
-
- UDIError d386_UDIStdinMode (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIMode *Mode; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS(Mode);
-
- err = UDIStdinMode(
- local.Mode
- );
-
- OUTPTR_POSTPROCESS(Mode);
-
- return(err);
- }
-
- UDIError d386_UDIPutTrans (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIHostMemPtr Buf; /* In */
- UDISizeT Count; /* In */
- UDISizeT *CountDone; /* Out */
- )
- UDIError err;
-
- INPTR_PREPROCESS_COUNT(Buf, in->Count);
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDIPutTrans(
- local.Buf,
- in->Count,
- local.CountDone
- );
-
- OUTPTR_POSTPROCESS(CountDone);
-
- return(err);
- }
-
-
- UDIError d386_UDIGetTrans (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIHostMemPtr Buf; /* Out */
- UDISizeT BufSize; /* In */
- UDISizeT *CountDone; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS_COUNT(Buf, in->BufSize);
- OUTPTR_PREPROCESS(CountDone);
-
- err = UDIGetTrans(
- local.Buf,
- in->BufSize,
- local.CountDone
- );
-
- OUTPTR_POSTPROCESS_COUNT(Buf, *(local.CountDone));
- OUTPTR_POSTPROCESS(CountDone);
-
- return(err);
- }
-
-
- UDIError d386_UDITransMode (void _far * rm_stk_ptr, int stacksize)
- {
- INCOMING_PARAMS(
- UDIMode *Mode; /* Out */
- )
- UDIError err;
-
- OUTPTR_PREPROCESS(Mode);
-
- err = UDITransMode(
- local.Mode
- );
-
- OUTPTR_POSTPROCESS(Mode);
-
- return(err);
- }
-
- #endif
- /*==================== End of DOS386 glue routines ====================================*/
-
-
-