mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-01 16:35:04 +00:00
320 lines
11 KiB
C
320 lines
11 KiB
C
/*
|
|
* Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved.
|
|
*
|
|
* This software may be freely used, copied, modified, and distributed
|
|
* provided that the above copyright notice is preserved in all copies of the
|
|
* software.
|
|
*/
|
|
|
|
/* sys.h
|
|
***********************************************************************
|
|
* Angel C Libary support channel protocol definitions
|
|
*
|
|
* $Revision$
|
|
* $Date$
|
|
*
|
|
*
|
|
*
|
|
*
|
|
* MESSAGE FORMAT
|
|
* --------------
|
|
* Format of the "data" section of C Lib Support Channel Messages.
|
|
* You will notice that the format is much the same as the format
|
|
* of ADP messages - this is so that multi-threaded C Libraries can
|
|
* be supported.
|
|
*
|
|
* unsigned32 reason - Main C Library reason code.
|
|
* unsigned32 debugID - Info. describing host debug world;
|
|
* private to host and used in any target
|
|
* initiated messages.
|
|
* unsigned32 OSinfo1 \ Target OS information to identify process/thread
|
|
* unsigned32 OSinfo2 / world, etc. These two fields are target defined.
|
|
* byte args[n] - Data for message "reason" code.
|
|
*
|
|
* The "debugID" is defined by the host-end of the protocol, and is used
|
|
* by the host to ensure that messages are routed to the correct handler
|
|
* program/veneer (eg. imagine several threads having opened stdout and
|
|
* each writing to a different window in a windowed debugger).
|
|
*
|
|
* NOTE: The reason that there is no "size" information, is that the
|
|
* message IDs themselves encode the format of any arguments.
|
|
*
|
|
* For further discussion of the format see adp.h
|
|
*
|
|
* N.B. All streams are little endian.
|
|
*
|
|
* CLIB REASON CODE
|
|
* ----------------
|
|
* The message reason codes contain some information that ties them to
|
|
* the channel and direction that the message will be used with. This
|
|
* will ensure that even if the message "#define name" is not
|
|
* completely descriptive, the message reason code is.
|
|
*
|
|
* b31 = direction. 0=Host-to-Target; 1=Target-to-Host;
|
|
* b30-16 = reserved. should be zero
|
|
* b15-0 = message reason code.
|
|
*
|
|
* Note that typically a request will be initiated by the target side, and
|
|
* that the host will then respond with either an acknowledgement or some
|
|
* data. In either case the same reason code will be used, but the direction
|
|
* bit will be reveresed.
|
|
*/
|
|
|
|
#ifndef __sys_h
|
|
#define __sys_h
|
|
|
|
#ifndef HtoT
|
|
#define HtoT ((unsigned)0 << 31) /* Host-to-Target message */
|
|
#define TtoH ((unsigned)1 << 31) /* Target-to-Host message */
|
|
#endif
|
|
|
|
/*
|
|
* The following are error codes used in the status field returned on
|
|
* sending a message. 0 represents no error having occurred, non-zero
|
|
* represents a general error. More codes should be added as required.
|
|
*/
|
|
|
|
#ifndef ErrCode
|
|
#define NoError 0x0
|
|
#endif
|
|
|
|
/*************************************************************************/
|
|
/* The following are direct conversions of the DeMon SWI's */
|
|
/* NB: nbytes is the number of bytes INCLUDING THE NULL character where */
|
|
/* applicable. */
|
|
|
|
/* This message is used as a response to a packet whose message
|
|
* was not understood. The return parameter, code is the reason
|
|
* code which was not understood. Although intended for use as a
|
|
* default case on a received message switch it can also be used
|
|
* as a proper message*/
|
|
#define CL_Unrecognised 0x00
|
|
/* Unrecognised()
|
|
* return(word code)
|
|
*/
|
|
|
|
/* Write a character to the terminal.
|
|
*/
|
|
#define CL_WriteC 0x01
|
|
/* WriteC(byte data)
|
|
* return(word status)
|
|
*/
|
|
|
|
/* Write a NULL terminated string of characters to the terminal. The length
|
|
* of the string excluding the NULL terminating character is passed in
|
|
* 'nbytes'.
|
|
*/
|
|
#define CL_Write0 0x02
|
|
/* Write0(word nbytes, bytes data)
|
|
* return(word status)
|
|
*/
|
|
|
|
/* Read a character from the terminal - probably the keyboard.
|
|
*/
|
|
#define CL_ReadC 0x04
|
|
/* ReadC(void)
|
|
* return(word status, byte data)
|
|
*/
|
|
|
|
/* Perform system call, pass NULL terminated string to host's command
|
|
* line interpreter(NOT AVAILABLE IN PC/DOS RELEASE). The data byte
|
|
* returned holds the return code from the system call.
|
|
*/
|
|
#define CL_System 0x05
|
|
/* CLI(word nbytes, bytes data)
|
|
* return(word status, word data)
|
|
*/
|
|
|
|
/* It returns the address of the null terminated command line string used to
|
|
* invoke the program. status will be set to NoError if the command line
|
|
* can be returned. Other status values will be treated as error conditions.
|
|
*/
|
|
#define CL_GetCmdLine 0x10
|
|
/* GetCmdLine(void)
|
|
* return(word status, word nbytes, bytes argline)
|
|
*/
|
|
|
|
/* Return the number of centi-seconds since the support code began
|
|
* execution. Only the difference between successive calls can be
|
|
* meaningful.
|
|
*/
|
|
#define CL_Clock 0x61
|
|
/* Clock(void)
|
|
* return(word status, word clks)
|
|
*/
|
|
|
|
/* Return the number of seconds since the beginning of 1970.
|
|
*/
|
|
#define CL_Time 0x63
|
|
/* Time(void)
|
|
* return(word status, word time)
|
|
*/
|
|
|
|
/* Delete(remove, un-link, wipe, destroy) the file named by the
|
|
* NULL-terminated string 'name'.
|
|
*/
|
|
#define CL_Remove 0x64
|
|
/* Remove(word nbytes, bytes name)
|
|
* return(word status)
|
|
*/
|
|
|
|
/* Rename the file specified by the NULL-terminated string 'oname'
|
|
* to 'nname'.
|
|
*/
|
|
#define CL_Rename 0x65
|
|
/* Rename(word nbytes, bytes oname, word nbytes, bytes nname)
|
|
* return(word status)
|
|
*/
|
|
|
|
/* 'name' specifies a NULL-terminated string containing a file name or a
|
|
* device name. Opens the file/device and returns a non-zero handle on
|
|
* success that can be quoted to CL_Close, CL_Read, CL_Write, CL_Seek,
|
|
* CL_Flen or CL_IsTTY. The mode is an integer in the range 0-11:-
|
|
*
|
|
* Mode: 0 1 2 3 4 5 6 7 8 9 10 11
|
|
* ANSI C fopen mode: r rb r+ r+b w wb w+ w+b a ab a+ a+b
|
|
*
|
|
* Values 12-15 are illegal. If 'name' is ":tt" the stdin/stdout is
|
|
* opened depending on whether 'mode' is read or write.
|
|
*/
|
|
#define CL_Open 0x66
|
|
/* Open(word nbytes, bytes name, word mode)
|
|
* return(word handle)
|
|
*/
|
|
|
|
/* 'handle' is a file handle previously returned by CL_Open. CL_Close
|
|
* closes the file.
|
|
*/
|
|
#define CL_Close 0x68
|
|
/* Close(word handle)
|
|
* return(word status)
|
|
*/
|
|
|
|
/* Writes data of length nbytes to the file/device specified by
|
|
* handle. nbtotal represents the total number of bytes to be
|
|
* written, whereas nbytes is the number of bytes in this packet
|
|
*
|
|
* If nbtotal is <= DATASIZE - CL_Write message header size in the
|
|
* packet then nbytes = nbtotal and the number of bytes not written
|
|
* is returned. If nbtotal is > the packet size then the CL_Write
|
|
* must be followed by a number of CL_WriteX's to complete the write,
|
|
* the nbytes returned by CL_Write can be ignored
|
|
* If the status word returned is non zero, an error has occurred and
|
|
* the write request has been aborted.
|
|
*
|
|
*/
|
|
#define CL_Write 0x69
|
|
/* Write(word handle, word nbtotal, word nbytes, bytes data)
|
|
* return(word status, word nbytes)
|
|
*/
|
|
|
|
/* Write Extension is a reads a continuation of data from a CL_Write
|
|
* which was too big to fit in a single packet.
|
|
* nbytes is the number of bytes of data in this packet, the
|
|
* returned value of nbytes can be ignored except if it is the
|
|
* last packet, in which case it is the number of bytes that were NOT
|
|
* written
|
|
*/
|
|
#define CL_WriteX 0x6A
|
|
/* WriteX(word nbytes, bytes data)
|
|
* return(word status, word nbytes)
|
|
*/
|
|
|
|
/* Reads 'nbytes' from the file/device specified by 'handle'.
|
|
*
|
|
* If nbytes <= DATASIZE then the read will occur in a single packet
|
|
* and the returned value of nbytes will be the number of bytes actually
|
|
* read and nbmore will be 0. If nbytes> DATASIZE then multiple packets
|
|
* will have to be used ie CL_Read followed by 1 or more CL_ReadX
|
|
* packets. In this case CL_Read will return nbytes read in the current
|
|
* packet and nbmore representing how many more bytes are expected to be
|
|
* read
|
|
* If the status word is non zero then the request has completed with an
|
|
* error. If the status word is 0xFFFFFFFF (-1) then an EOF condition
|
|
* has been reached.
|
|
*/
|
|
#define CL_Read 0x6B
|
|
/* Read(word handle, word nbytes)
|
|
* return(word status, word nbytes, word nbmore, bytes data)
|
|
*/
|
|
|
|
/* Read eXtension returns a continuation of the data that was opened for
|
|
* read in the earlier CL_Read. The return value nbytes is the number of
|
|
* data bytes in the packet, nbmore is the number of bytes more that are
|
|
* expected to be read in subsequent packets.
|
|
*/
|
|
#define CL_ReadX 0x6C
|
|
/* ReadX()
|
|
* return(word status, word nbytes, word nbmore, bytes data)
|
|
*/
|
|
|
|
/* Seeks to byte position 'posn' in the file/device specified by 'handle'.
|
|
*/
|
|
#define CL_Seek 0x6D
|
|
/* Seek(word handle, word posn)
|
|
* return(word status)
|
|
*/
|
|
|
|
/* Returns the current length of the file specified by 'handle' in 'len'.
|
|
* If an error occurs 'len' is set to -1.
|
|
*/
|
|
#define CL_Flen 0x6E
|
|
/* Flen(word handle)
|
|
* return(word len)
|
|
*/
|
|
|
|
/* Returns NoError if 'handle' specifies an interactive device, otherwise
|
|
* returns GenError
|
|
*/
|
|
#define CL_IsTTY 0x6F
|
|
/* IsTTY(word handle)
|
|
* return(word status)
|
|
*/
|
|
|
|
/* Returns a temporary host file name. The maximum length of a file name
|
|
* is passed to the host. The TargetID is some identifier from the target
|
|
* for this particular temporary filename. This value is could be used
|
|
* directly in the generation of the filename.
|
|
*
|
|
* If the host cannot create a suitable name or the generated name is too
|
|
* long then status is non zero. status will be NoError if the host can create
|
|
* a name.
|
|
*/
|
|
#define CL_TmpNam 0x70
|
|
/* TmpNam(word maxlength, word TargetID)
|
|
* return(word status, word nbytes, bytes fname)
|
|
*/
|
|
|
|
/* Note there is no message for Exit, EnterOS, InstallHandler or
|
|
* GenerateError as these will be supported entirely at the host end,
|
|
* or by the underlying Operating system.
|
|
*/
|
|
|
|
#define CL_UnknownReason (-1)
|
|
|
|
extern unsigned int GetRaiseHandler( void );
|
|
extern unsigned int SysLibraryHandler(unsigned int sysCode, unsigned int *args);
|
|
extern void angel_SysLibraryInit(void);
|
|
|
|
/*
|
|
* Function: Angel_IsSysHandlerRunning
|
|
* Purpose: return whether or not SysLibraryHandler is running
|
|
*
|
|
* No paramaters
|
|
*
|
|
* Returns 1 if SysLibraryHandler is running
|
|
* 0 otherwise
|
|
*/
|
|
extern int Angel_IsSysHandlerRunning(void);
|
|
|
|
#ifdef ICEMAN2
|
|
/* This function exists in an ICEman2 system only, and can be called by
|
|
* debug support code when the debugger tells it how much memory the
|
|
* target has. This will then be used to deal with the HEAPINFO SWI
|
|
*/
|
|
extern void angel_SetTopMem(unsigned addr);
|
|
#endif
|
|
|
|
#endif
|
|
|